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125-476: Ontario International Airport ( IATA : ONT , ICAO : KONT , FAA LID : ONT ) is an international airport 2 mi (3.2 km) east of downtown Ontario , in San Bernardino County, California , United States, about 38 mi (61 km) east of downtown Los Angeles and 18 mi (29 km) west of downtown San Bernardino . It is owned and operated under a joint-powers agreement with

250-519: A US Commission on Civil Rights of hearing that of 31,000 homes that had recently sprung up in this neighborhood, not a single one had been sold to an African-American. Phoenix's African-American and Mexican-American communities remained largely sequestered on the south side of town. The color lines were so rigid that no one north of Van Buren Street would rent to the African-American baseball star Willie Mays , in town for spring training in

375-641: A hot desert climate ( Köppen: BWh ), typical of the Sonoran Desert , and is the largest city in America in this climatic zone. Phoenix has long, extremely hot summers and short, mild winters. The city is within one of the world's sunniest regions, with its sunshine duration comparable to the Sahara region. With 3,872 hours of bright sunshine annually, Phoenix receives the most sunshine of any major city on Earth. Average high temperatures in summer are

500-452: A duel; Chenowth killed Favorite and was forced to withdraw from the race. The town grew during the 1870s, and President Ulysses S. Grant issued a land patent for the site of Phoenix on April 10, 1874. By 1875, the town had a telegraph office, 16 saloons, and four dance halls, but the townsite-commissioner form of government needed an overhaul. An election was held in 1875, and three village trustees and other officials were elected. By 1880,

625-561: A four percent annual population growth rate over a 40-year period from the mid-1960s to the mid-2000s, and was among the nation's ten most populous cities by 1980. Phoenix is also one of the largest plurality-Hispanic cities in the United States, with 42% of its population being Hispanic . The Hohokam people occupied the Phoenix area for 2,000 years. They created roughly 135 miles (217 kilometers) of irrigation canals, making

750-551: A fungal lung infection. Unlike most desert locations which have drastic fluctuations between day and nighttime temperatures, the urban heat island effect limits Phoenix's diurnal temperature variation . As the city has expanded, average summer low temperatures have been steadily rising. Pavement, sidewalks, and buildings store the Sun's heat and radiate it at night. The daily normal low remains at or above 80 °F (27 °C) for an average of 74 days per summer. On July 19, 2023, at

875-508: A grid layout pattern that has been the hallmark of Phoenix's urban development ever since. On February 12, 1871, the territorial legislature created Maricopa County by dividing Yavapai County; it was the sixth one formed in the Arizona Territory. The first election for county office was held in 1871 when Tom Barnum was elected the first sheriff. He ran unopposed when the other two candidates (John A. Chenowth and Jim Favorite) fought

1000-586: A growth rate under 24% in a census decade. However, in 2016, Phoenix once again became the fastest growing city in the United States, adding approximately 88 people per day during the preceding year. The Phoenix Metropolitan Statistical Area (MSA) (officially known as the Phoenix-Mesa-Chandler MSA ), is one of 10 MSAs in Arizona, and was the 11th largest in the United States, with a 2018 U.S. census population estimate of 4,857,962, up from

1125-466: A joint congressional resolution granting statehood to Arizona, due to his disapproval of the state constitution's position on the recall of judges. In 1913, Phoenix's move from a mayor-council system to council-manager made it one of the first cities in the United States with this form of city government. After statehood, Phoenix's growth started to accelerate; eight years later, its population reached 29,053. In 1920, Phoenix would see its first skyscraper,

1250-402: A long drought, and the reservoir which was supposed to be behind the dam was virtually dry. The humorist Will Rogers , who was on hand as a guest speaker joked, "If that was my lake, I'd mow it." Phoenix's population had nearly doubled during the 1920s and by 1930 stood at 48,118. It was also during the 1930s that Phoenix and its surrounding area began to be called "The Valley of the Sun", which

1375-409: A myriad of residential tract developments on both farmland and desert." Retail outlets and office complexes spread out and did not concentrate in the small downtown area. There was low population density and a lack of widespread and significant high-rise development. As a consequence Phoenix became a textbook case of urban sprawl for geographers. Even though it is the fifth most populated city in

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1500-567: A new airport is built, replacing the old one, leaving the city's new "major" airport (or the only remaining airport) code to no longer correspond with the city's name. The original airport in Nashville, Tennessee, was built in 1936 as part of the Works Progress Administration and called Berry Field with the designation, BNA. A new facility known as Nashville International Airport was built in 1987 but still uses BNA. This

1625-471: A nonstop to Chicago and American started flights to Dallas (and Chicago, for a short time). In September 1986, Ontario hosted the Concorde supersonic airliner during a promotional round-the-world flight. In 1981, a second east–west runway, 26L/8R, was built, necessitating the removal of the old NE-SW runway 3/21. Remnants of the 3/21 runway are visible in the present-day taxiways. With the completion of

1750-565: A number of nearby airports: Redlands Municipal Airport , Chino Airport , Brackett Field in La Verne , Cable Airport in Upland , or San Bernardino International Airport . Ontario has few noise restrictions/abatement rules, unlike other Southern California airports, such as John Wayne Airport , Hollywood Burbank Airport (Bob Hope), Long Beach Airport , and San Diego International Airport , which all have very strict policies. The airport

1875-686: A planning committee appointed directly by the city council. According to the city-issued village planning handbook, the purpose of the village planning committees is to "work with the city's planning commission to ensure a balance of housing and employment in each village, concentrate development at identified village cores, and to promote the unique character and identity of the villages." There are 15 urban villages: Ahwatukee Foothills , Alhambra , Camelback East , Central City , Deer Valley , Desert View, Encanto , Estrella , Laveen , Maryvale , North Gateway, North Mountain, Paradise Valley, Rio Vista , and South Mountain. The urban village of Paradise Valley

2000-426: A population of nearly 1.6 million, and millions more in nearby suburbs. After the war, many of the men who had undergone their training in Arizona returned with their new families. Learning of this large untapped labor pool enticed many large industries to move their operations to the area. In 1948, high-tech industry, which would become a staple of the state's economy, arrived in Phoenix when Motorola chose Phoenix as

2125-646: A separate adjacent international arrivals facility with 2 arrival-only gates, totaling 28 gates. Terminal 2 has 265,000 sq ft (24,600 m) and 12 gates. Alaska Airlines , Avianca El Salvador , China Airlines , Delta Air Lines , Frontier Airlines , JetBlue , United Airlines , and Volaris are located in Terminal 2. Terminal 4 has 265,000 sq ft (24,600 m) and 14 gates. American Airlines , Hawaiian Airlines , and Southwest Airlines are located in Terminal 4. The international arrivals facility has two gates for arrivals only, containing

2250-478: Is 7.22 in (183 mm). The region's trademark dry and sunny weather is interrupted by sporadic Pacific storms in the winter and the arrival of the North American monsoon in the summer. Historically, the monsoon officially started when the average dew point was 55 °F (13 °C) for three days in a row—typically occurring in early July. To increase monsoon awareness and promote safety, however,

2375-509: Is GSN and its IATA code is SPN, and some coincide with IATA codes of non-U.S. airports. Canada's unusual codes—which bear little to no similarity with any conventional abbreviation to the city's name—such as YUL in Montréal , and YYZ in Toronto , originated from the two-letter codes used to identify weather reporting stations in the 1930s. The letters preceding the two-letter code follow

2500-426: Is allowed to operate 24/7, but during the hours of 22:00 to 07:00, all aircraft must arrive from the east on runway 26L or 26R and take off to the east on runway 8R or 8L, depending on ATC instruction. This procedure is known as "Contra-Flow" operations and applies to turbojet or turbofan aircraft. This procedure is similar to the one employed by LAX, where all landings are conducted from the east and all takeoffs are to

2625-632: Is also home to a plethora of native reptile species including the Western diamondback rattlesnake , Sonoran sidewinder , several other types of rattlesnakes, Sonoran coral snake , dozens of species of non-venomous snakes (including the Sonoran gopher snake and the California kingsnake ), the gila monster , desert spiny lizard , several types of whiptail lizards , the chuckwalla , desert horned lizard , western banded gecko , Sonora mud turtle , and

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2750-557: Is an alternate landing site for large aircraft destined for LAX. In 1923, a landing field was established east of Central Avenue (3 mi (4.8 km) west of the current airport) on land leased from the Union Pacific Railroad . The airfield was named Latimer Field after an orange-packing company next to the airstrip. An airport was built there by one of the first flying clubs in Southern California,

2875-554: Is available. However, many railway administrations have their own list of codes for their stations, such as the list of Amtrak station codes . Airport codes arose out of the convenience that the practice brought pilots for location identification in the 1930s. Initially, pilots in the United States used the two-letter code from the National Weather Service (NWS) for identifying cities. This system became unmanageable for cities and towns without an NWS identifier, and

3000-523: Is different from the name in English, yet the airport code represents only the English name. Examples include: Due to scarcity of codes, some airports are given codes with letters not found in their names: The use of 'X' as a filler letter is a practice to create three-letter identifiers when more straightforward options were unavailable: Some airports in the United States retained their NWS ( National Weather Service ) codes and simply appended an X at

3125-418: Is distinct from the nearby Town of Paradise Valley . Although the urban village is part of Phoenix, the town is independent. In addition to the above urban villages, Phoenix has a variety of commonly referred-to regions and districts, such as Downtown , Midtown , Uptown, West Phoenix, North Phoenix , South Phoenix , Biltmore Area , Arcadia , and Sunnyslope . While some of the native flora and fauna of

3250-671: Is governed by IATA Resolution 763, and it is administered by the IATA's headquarters in Montreal , Canada. The codes are published semi-annually in the IATA Airline Coding Directory. IATA provides codes for airport handling entities, and for certain railway stations. Alphabetical lists of airports sorted by IATA code are available. A list of railway station codes , shared in agreements between airlines and rail lines such as Amtrak , SNCF , and Deutsche Bahn ,

3375-499: Is home to the only thriving feral population of rosy-faced lovebirds in the U.S. This bird is a popular birdcage pet, native to southwestern Africa. Feral birds were first observed living outdoors in 1987, probably escaped or released pets, and by 2010 the Greater Phoenix population had grown to about 950 birds. These lovebirds prefer older neighborhoods where they nest under untrimmed, dead palm tree fronds. The area

3500-513: Is in conjunction to rules aimed to avoid confusion that seem to apply in the United States, which state that "the first and second letters or second and third letters of an identifier may not be duplicated with less than 200 nautical miles separation." Thus, Washington, D.C. area's three airports all have radically different codes: IAD for Washington–Dulles , DCA for Washington–Reagan (District of Columbia Airport), and BWI for Baltimore (Baltimore–Washington International, formerly BAL). Since HOU

3625-561: Is in the mid-to-low 30s. It rarely drops to 32 °F (0 °C) or below. Snow is rare. In July 2023, it became the first major city in the US to have an average monthly temperature of over 100 °F (38 °C) with an average daily mean temperature for the month at 102.7 °F (39 °C), which is also the hottest month ever recorded in the city. That same month the city had an unprecedented streak of 31 days with 110 °F (43 °C)+ highs that lasted from June 30 to July 30. That year

3750-538: Is in the south-central portion of Arizona; about halfway between Tucson to the southeast and Flagstaff to the north, in the Southwestern United States . By car, the city is approximately 150 miles (240 kilometers) north of the US–Mexico border at Sonoyta and 180 mi (290 km) north of the border at Nogales . The metropolitan area is known as the "Valley of the Sun" due to its location in

3875-572: Is located about 38 miles (61 km) east of downtown Los Angeles, 18 miles (29 km) west of downtown San Bernardino , and 14 miles (23 km) northwest of downtown Riverside . Motorists can use the San Bernardino Freeway ( Interstate 10 ), Ontario Freeway ( Interstate 15 ), or the Pomona Freeway ( State Route 60 ). Omnitrans , San Bernardino County's main public transportation agency, operates three routes near

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4000-543: Is not followed outside the United States: In addition, since three letter codes starting with Q are widely used in radio communication, cities whose name begins with "Q" also had to find alternate codes, as in the case of: IATA codes should not be confused with the FAA identifiers of U.S. airports. Most FAA identifiers agree with the corresponding IATA codes, but some do not, such as Saipan , whose FAA identifier

4125-605: Is so common, nearly all homes in Phoenix have air conditioning , though poorer residents may not be able to afford to repair or operate them when needed. Maricopa County, which includes Phoenix, was ranked seventh for most ozone pollution in the United States according to the American Lung Association . Vehicle emissions are cited as precursors to ozone formation. Phoenix also has high levels of particulate pollution; although, cities in California lead

4250-400: Is the 10th-largest by population in the United States with approximately 4.95 million people as of 2020 , making it the most populous in the Southwestern United States . Phoenix, the seat of Maricopa County , is the largest city by population and area in Arizona, with an area of 517.9 square miles (1,341 km ), and is also the 11th-largest city by area in the United States. Phoenix

4375-600: Is the capital and most populous city of the U.S. state of Arizona , with 1,662,607 residents as of 2024. It is the fifth-most populous city in the United States and the most populous state capital in the country. Phoenix is the most populous city of the Phoenix metropolitan area , also known as the Valley of the Sun, which in turn is part of the Salt River Valley and Arizona Sun Corridor . The metro area

4500-469: Is the presence of Africanized bees which can be extremely dangerous—even lethal—when provoked. The Arizona Upland subdivision of the Sonoran Desert (of which Phoenix is a part) has "the most structurally diverse flora in the United States." One of the most well-known types of succulents, the giant saguaro cactus , is found throughout the city and its neighboring environs. Other native species are

4625-416: Is used for William P. Hobby Airport , the new Houston–Intercontinental became IAH. The code BKK was originally assigned to Bangkok–Don Mueang and was later transferred to Suvarnabhumi Airport , while the former adopted DMK. The code ISK was originally assigned to Gandhinagar Airport (Nashik's old airport) and later on transferred to Ozar Airport (Nashik's current airport). Shanghai–Hongqiao retained

4750-798: The Arizona Veterans Memorial Coliseum opened at the Arizona State Fairgrounds , west of downtown. When Phoenix was awarded an NBA franchise in 1968, which would be called the Phoenix Suns , they played their home games at the Coliseum until 1992, after which they moved to America West Arena . In 1968, President Lyndon B. Johnson approved the Central Arizona Project , assuring future water supplies for Phoenix, Tucson, and

4875-571: The Canadian transcontinental railroads were built, each station was assigned its own two-letter Morse code : When the Canadian government established airports, it used the existing railway codes for them as well. If the airport had a weather station, authorities added a "Y" to the front of the code, meaning "Yes" to indicate it had a weather station or some other letter to indicate it did not. When international codes were created in cooperation with

5000-524: The Carnegie Free Library opened seven years later, on February 18, 1908, dedicated by Benjamin Fowler. The National Reclamation Act was signed by President Theodore Roosevelt in 1902, which allowed dams to be built on waterways in the west for reclamation purposes. The first dam constructed under the act, Salt River Dam#1 , began in 1903. It supplied both water and electricity, becoming

5125-819: The First National Bank Plaza , the Valley Center (the tallest building in Arizona), and the Arizona Bank building . On September 25, 1981, Phoenix resident Sandra Day O'Connor broke the gender barrier on the U.S. Supreme Court , when she was sworn in as the first female justice. In 1985, the Palo Verde Nuclear Generating Station , the nation's largest nuclear power plant, began electrical production. Pope John Paul II and Mother Teresa both visited

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5250-663: The Heard Building ; it was the tallest building in the state until the completion of the Luhrs Building in 1924. In 1929, Sky Harbor was officially opened, at the time owned by Scenic Airways . The city purchased it in 1935 and continues to operate it today. On March 4, 1930, former U.S. President Calvin Coolidge dedicated a dam on the Gila River named in his honor. However, the state had just been through

5375-582: The Reconstruction Finance Corporation ; others were at Albuquerque AAF , New Mexico ; Altus AAF , Oklahoma ; Kingman AAF , Arizona ; and Walnut Ridge AAF , Arkansas . In 1946, Ontario Municipal Airport was renamed "Ontario International Airport" because of the trans-Pacific cargo flights originating there. On 17 May 1946, two Army surplus steel hangars arrived at the airport, which the Ontario city council had authorized

5500-459: The Santa Fe, Prescott and Phoenix Railway in 1895 connected Phoenix to Prescott, Flagstaff, and other communities in the northern part of the territory. The increased access to commerce expedited the city's economic rise. The Phoenix Union High School was established in 1895 with an enrollment of 90. On February 25, 1901, Governor Oakes Murphy dedicated the permanent Capitol building , and

5625-505: The Sonoran Desert can be found within Phoenix city limits, most are found in the suburbs and the undeveloped desert areas that surround the city. Native mammal species include coyote , javelina , bobcat , mountain lion , desert cottontail rabbit , jackrabbit , antelope ground squirrel , mule deer , ringtail , coati , and multiple species of bats, such as the Mexican free-tailed bat and western pipistrelle , that roost in and around

5750-638: The White Tank Mountains to the west, the Superstition Mountains far to the east, and both South Mountain and the Sierra Estrella to the south/southwest. Camelback Mountain , North Mountain, Sunnyslope Mountain , and Piestewa Peak are within the heart of the valley. The city's outskirts have large fields of irrigated cropland and Native American reservation lands. The Salt River runs westward through Phoenix, but

5875-552: The desert tortoise . Native amphibian species include the Couch's spadefoot toad , Chiricahua leopard frog , and the Sonoran desert toad . Phoenix and the surrounding areas are also home to a wide variety of native invertebrates including the Arizona bark scorpion , giant desert hairy scorpion , Arizona blond tarantula , Sonoran Desert centipede , tarantula hawk wasp , camel spider , and tailless whip scorpion . Of great concern

6000-669: The organpipe , barrel , fishhook , senita , prickly pear and cholla cacti; ocotillo ; Palo Verde trees and foothill and blue paloverde ; California fan palm ; agaves ; soaptree yucca , Spanish bayonet , desert spoon , and red yucca ; ironwood ; mesquite ; and the creosote bush . Many non-native plants also thrive in Phoenix including, but not limited to, the date palm , Mexican fan palm , pineapple palm , Afghan pine , Canary Island pine , Mexican fencepost cactus , cardon cactus , acacia , eucalyptus , aloe , bougainvillea , oleander , lantana , bottlebrush , olive , citrus , and red bird of paradise . Phoenix has

6125-481: The "Five C's" anchoring Phoenix's economy. These remained the driving forces of the city until after World War II , when high-tech companies began to move into the valley and air conditioning made Phoenix's hot summers more bearable. Phoenix is the cultural center of Arizona. It is in the northeastern reaches of the Sonoran Desert and is known for its hot desert climate . The region's gross domestic product reached over $ 362 billion by 2022. The city averaged

6250-465: The $ 50,000 purchase of just the previous week. City officials were pleased to have secured a bargain. Thought to be the only pair available in the U.S., City Manager Harold J. Martin observed that even if they could be acquired at a later date, the cost would be several times that afforded by prompt action. A Pacific Overseas Airlines flight from Shanghai arrived at Ontario on 18 May 1946, "which inaugurated regular round-trip air passenger service between

6375-620: The 1960s, with tourism becoming the third largest industry by the end of the decade. In 1965, the Phoenix Corporate Center opened; at the time it was the tallest building in Arizona, topping off at 341 feet. The 1960s saw many other buildings constructed as the city expanded rapidly, including the Rosenzweig Center (1964), today called Phoenix City Square , the landmark Phoenix Financial Center (1964), as well as many of Phoenix's residential high-rises. In 1965

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6500-432: The 1960s. In 1964, a reporter from The New Republic wrote of segregation in these terms: "Apartheid is complete. The two cities look at each other across a golf course." The continued rapid population growth led more businesses to the valley to take advantage of the labor pool, and manufacturing, particularly in the electronics sector, continued to grow. The convention and tourism industries saw rapid expansion during

6625-421: The 2000 census (a total of 124,000 people), while the entire Phoenix metropolitan area grew by 28.9% during the same period. This compares with an overall growth rate nationally during the same time frame of 9.7%. Not since 1940–50, when the city had a population of 107,000, had the city gained less than 124,000 in a decade. Phoenix's recent growth rate of 9.4% from the 2010 census is the first time it has recorded

6750-549: The 2010 census population of 4,192,887. Consisting of both Pinal and Maricopa counties, the MSA accounts for 65.5% of Arizona's population. Phoenix only contributed 13% to the total growth rate of the MSA, down significantly from its 33% share during the prior decade. Phoenix is also part of the Arizona Sun Corridor megaregion (MR), which is the tenth most populous of the 11 MRs, and the eighth largest by area. It had

6875-466: The 4,700 ft (1,400 m) northeast–southwest runway cost $ 350,000 (equivalent to $ 6,530,000 in 2023). On 27 February 1942, an Army Air Corps plane made the first landing at the new airport. By 1943, the airport was an Army Air Corps Lockheed P-38 Lightning training base and North American P-51 Mustang operating base. After the war, it was one of the five large storage, sales, and scrapping centers for Army Air Forces aircraft established by

7000-701: The Friends of Ontario Airport. In 1929, the city of Ontario purchased 30 acres (12 ha), now in the southwest corner of the airport, for $ 12,000 (equivalent to $ 213,000 in 2023), and established the Ontario Municipal Airport . In 1941, the city bought 470 acres (190 ha) around the airport and approved construction of new runways, which were completed by 1942, with funds from the Works Progress Administration . The 6,200 ft (1,900 m) east–west runway and

7125-697: The Gila River Valley, from Florence in the east to the Estrellas in the west. Their crops included corn, beans, and squash for food as well as cotton and tobacco. They banded with the Maricopa for protection against incursions by the Yuma and Apache tribes. The Maricopa are part of the larger Yuma people; however, they migrated east from the lower Colorado and Gila Rivers in the early 1800s, when they began to be enemies with other Yuma tribes, settling among

7250-518: The Hohokam. Other nearby settlements later merged to become the city of Tempe . The history of Phoenix begins with Jack Swilling , a Confederate veteran of the Civil War who prospected in the nearby mining town of Wickenburg in the newly formed Arizona Territory . As he traveled through the Salt River Valley in 1867, he saw a potential for farming to supply Wickenburg with food. He also noted

7375-480: The Los Angeles regional airports system in 1967. In 1968, the airport had its first scheduled jet flights. In 1969, Continental Airlines started Boeing 720B nonstops to Denver and Chicago; Air California started Boeing 737 flights to San Jose ; Pacific Southwest Airlines started San Francisco flights; and Western began 737 nonstops to Sacramento and Salt Lake City . In 1970, United Airlines started

7500-497: The National Weather Service decreed that starting in 2008, June 15 would be the official "first day" of the monsoon, and it would end on September 30. When active, the monsoon raises humidity levels and can cause heavy localized precipitation, flash floods, hail, destructive winds, and dust storms —which can rise to the level of a haboob in some years. As of 2020, Phoenix was the fifth most populous city in

7625-582: The Phoenix Concept 2000 plan which split the city into urban villages, each with its own village core where greater height and density was permitted, further shaping the free-market development culture. The nine original villages have expanded to 15 over the years (see Cityscape below). This officially turned Phoenix into a city of many nodes, which would later be connected by freeways. The Phoenix Symphony Hall opened in 1972; other major structures which saw construction downtown during this decade were

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7750-469: The Salt River Valley. It lies at a mean elevation of 1,086 feet (331 m), in the northern reaches of the Sonoran Desert . Other than the mountains in and around the city, Phoenix's topography is generally flat, which allows the city's main streets to run on a precise grid with wide, open-spaced roadways. Scattered, low mountain ranges surround the valley: McDowell Mountains to the northeast,

7875-506: The U.S. For example, several airports in Alaska have scheduled commercial service, such as Stebbins and Nanwalek , which use FAA codes instead of ICAO codes. Thus, neither system completely includes all airports with scheduled service. Some airports are identified in colloquial speech by their IATA code. Examples include LAX and JFK . Phoenix, Arizona Phoenix ( / ˈ f iː n ɪ k s / FEE -niks )

8000-476: The United States , with the census bureau placing its population at 1,608,139, edging out Philadelphia with a population of 1,567,872. In the aftermath of the Great Recession, Phoenix had a population of 1,445,632 according to the 2010 United States census , the sixth largest city and still the most populous state capital in the United States. Prior to the Great Recession, in 2006, Phoenix's population

8125-500: The United States and the Orient." In 1949, Western Airlines began scheduled flights; in 1955, Bonanza Air Lines flights started. Western and Bonanza nonstops did not reach beyond Las Vegas . In 1962, Western began nonstop flights to San Francisco (one Electra daily). In 1967, Bonanza began nonstop F27 flights to Phoenix . Ontario and Los Angeles entered into a joint-powers agreement, making Ontario International Airport part of

8250-481: The United States, because "Y" was seldom used in the United States, Canada simply used the weather station codes for its airports, changing the "Y" to a "Z" if it conflicted with an airport code already in use. The result is that most major Canadian airport codes start with "Y" followed by two letters in the city's name (for example, YOW for O tta w a , YWG for W innipe g , YYC for C algar y , or YVR for V ancouve r ), whereas other Canadian airports append

8375-436: The United States, the large area gives it a low density rate of approximately 2,797 people per square mile. In comparison, Philadelphia , the sixth most populous city with nearly the same population as Phoenix, has a density of over 11,000 people per square mile. Like most of Arizona, Phoenix does not observe daylight saving time . In 1973, Governor Jack Williams argued to the U.S. Congress that energy use would increase in

8500-518: The Valley in 1987. There was an influx of refugees due to low-cost housing in the Sunnyslope area in the 1990s, resulting in 43 different languages being spoken in local schools by 2000. The new 20-story City Hall opened in 1992. Phoenix has maintained a growth streak in recent years, growing by 24.2% before 2007. This made it the second-fastest-growing metropolitan area in the United States, surpassed only by Las Vegas . In 2008, Squaw Peak,

8625-640: The administration and the USO. In 2005 and 2006, runway 26R/8L was repaved and strengthened, and received storm drains and better runway lighting, and additional improvements to taxiway intersections were made. In 2006, Ontario International Airport became LA/Ontario International Airport . The "LA" portion was added to remind fliers of Greater Los Angeles and to avoid confusion with the province of Ontario in Canada. The airport's traffic peaked in 2005 with 7.2 million passengers, and remained steady through 2007. Around

8750-527: The agricultural corridor between them. The following year, Pope Paul VI created the Diocese of Phoenix on December 2, by splitting the Archdiocese of Tucson, with Edward A. McCarthy as the first Bishop. In the 1970s the downtown area experienced a resurgence, with a level of construction activity not seen again until the urban real estate boom of the 2000s. By the end of the decade, Phoenix adopted

8875-600: The airport are currently in the process of trying to implement a tunnel with autonomous, zero-emission vehicles on an "on-demand" basis from the Metrolink San Bernardino Line 's Rancho Cucamonga station to Ontario International Airport. Initially, The Boring Company proposed constructing a single 2.8-mile (4.5 km) tunnel similar to the Las Vegas Convention Center Loop that would cost $ 60 million. However,

9000-440: The airport itself instead of the city it serves, while another code is reserved which refers to the city itself which can be used to search for flights to any of its airports. For instance: Or using a code for the city in one of the major airports and then assigning another code to another airport: When different cities with the same name each have an airport, they need to be assigned different codes. Examples include: Sometimes,

9125-443: The airport operated alongside Ontario Air National Guard Station , which was closed as a result of the 1995 Base Realignment and Closure Commission . In 1998, the new and larger airport terminal opened, designed by DMJM Aviation . Two older terminals, west of the current terminal, the main terminal and a small terminal were discontinued when the new Terminal 2 and Terminal 4 facilities were opened. The old terminals currently house

9250-417: The airport's U.S. Customs and Border Protection facility. International flights depart from the main terminals. Avianca , China Airlines , and Volaris are the only airlines with international arrivals that operate this terminal. A USO is housed in the old terminal complex near the international arrivals facility. Remote parking is located on the east end of the airport (moved from its former location at

9375-418: The airport's former name, such as Orlando International Airport 's MCO (for Mc C o y Air Force Base), or Chicago's O'Hare International Airport , which is coded ORD for its original name: Or char d Field. In rare cases, the code comes from the airport's unofficial name, such as Kahului Airport 's OGG (for local aviation pioneer Jimmy H ogg ). In large metropolitan areas, airport codes are often named after

9500-1039: The airport. The airport's continuing traffic decline reversed in early 2017, when the airport experienced faster growth than LAX for the first time since 2007. On September 30, 2017, it was announced that China Airlines would begin nonstop flights from Ontario to Taipei, which started in spring 2018. On July 14, 2023, New Pacific Airlines (formerly known as Northern Pacific Airways) commenced operations and made its first flight to Harry Reid International Airport in Las Vegas , Nevada , and started flights to Reno–Tahoe International Airport , also in Nevada, and Nashville International Airport in Tennessee . Also on that day, Volaris added flights to El Salvador. On January 1, 2024, they ended flights to Las Vegas and subsequently discontinued all scheduled service altogether. Ontario International Airport has two terminals with 26 gates and

9625-461: The airport. A group of local government officials, led by Ontario city council member Alan Wapner, began a campaign to transfer control of the airport away from Los Angeles World Airports . Wapner argued that the City of Los Angeles had no interest in maintaining service at an airport well beyond its borders. In 2013, LAWA offered to return the airport to local control for a purchase price of $ 474M, which

9750-571: The airport. Route 380, also called ONT Connect, provides non-stop daily service every 35 to 60 minutes between the airport and Rancho Cucamonga station , where passengers can connect to Metrolink's San Bernardino Line , which operates daily with service to Los Angeles Union Station . Route 61 operates daily between Pomona–Downtown station , Ontario station , the airport, and Fontana station . Both routes 61 and 380 operate from stops located east of baggage claim at terminals 2 and 4. Route 81 operates Monday through Saturday on Haven Avenue which runs along

9875-605: The airport. Upon transfer of ownership, the airport would be operated by the Ontario International Airport Authority, formed under a joint-powers agreement between the city of Ontario and San Bernardino County". The Ontario International Airport Authority took over control of operations in November 2016, and the airport's operating name was reverted to Ontario International Airport, since the City of Los Angeles no longer oversaw operations of

10000-581: The area. After the departure of the Hohokam, groups of Akimel O'odham (commonly known as Pima), Tohono O'odham , and Maricopa tribes began to use the area, as well as segments of the Yavapai and Apache. The O'odham were offshoots of the Sobaipuri tribe, who in turn were thought to be the descendants of the Hohokam. The Akimel O'odham were the major group in the area. They lived in small villages with well-defined irrigation systems that spread over

10125-599: The city also had a record 55 days of daily highs topping 110 °F (43 °C)+, which also made summer of 2023 the hottest on record there, until it was beaten by the summer of 2024 with the hottest ever June at 97.0 °F (36 °C), the third hottest august August at 98.7 °F (37 °C) and the 2nd hottest July record at 101.1 °F (38 °C) by average daily temperature respectively. That same year in 2024, it also recorded an unprecedented 113 day streak of daily highs topping 100 °F (38 °C)+ that lasted from May 27 to September 16. Because extreme heat

10250-508: The city of Ontario and San Bernardino County. The airport covers 1,741 acres (705 ha) and has two parallel runways . It is the West Coast air and truck hub for UPS Airlines and is a major distribution point for FedEx Express . As of September 2018, ONT has more than 64 daily departures and arrivals. Since Ontario's longest runway (runway 8L/26R) is longer than three of the four runways at Los Angeles International Airport (LAX), it

10375-416: The city's second tallest mountain, was renamed Piestewa Peak after Army Specialist Lori Ann Piestewa , an Arizonan and the first Native American woman to die in combat while serving in the U.S. military, as well as being the first American female casualty of the 2003 Iraq War . 2008 also saw Phoenix as one of the cities hardest hit by the subprime mortgage crisis , and by early 2009 the median home price

10500-444: The city. There are many species of native birds, including Costa's hummingbird , Anna's hummingbird , Gambel's quail , Gila woodpecker , mourning dove , white-winged dove , the greater roadrunner , the cactus wren , and many species of raptors, including falcons , hawks , owls , vultures (such as the turkey vulture and black vulture ), and eagles , including the golden and the bald eagle . The greater Phoenix region

10625-502: The code SHA, while the newer Shanghai–Pudong adopted PVG. The opposite was true for Berlin : the airport Berlin–Tegel used the code TXL, while its smaller counterpart Berlin–Schönefeld used SXF; the Berlin Brandenburg Airport has the airport code BER, which is also part of its branding. The airports of Hamburg (HAM) and Hannover (HAJ) are less than 100 nautical miles (190 km) apart and therefore share

10750-494: The company eventually dropped out of the project because they refused to submit another refined proposal. Despite this, the SBCTA moved forward with plans on the project. The new plans for the project include two 4.2-mile (6.8 km) tunnels that will cost roughly $ 492 million. The SBCTA selected HNTB as their new contractor to design, build, and maintain the project. IATA airport code The assignment of these codes

10875-576: The desert land arable, and paths of these canals were used for the Arizona Canal , Central Arizona Project Canal, and the Hayden-Rhodes Aqueduct . They also carried out extensive trade with the nearby Ancient Puebloans , Mogollon , and Sinagua , as well as with the more distant Mesoamerican civilizations. It is believed periods of drought and severe floods between 1300 and 1450 led to the Hohokam civilization's abandonment of

11000-479: The eastern edge of the airport between Chaffey College and Ontario–East station , where passengers can connect to Metrolink's Riverside Line , which operates during weekday peak periods. As a cost-effective solution compared to the proposed extension of the Foothill Extension project from Montclair Transcenter to Ontario International Airport, estimated at around $ 1-1.5 billion, the SBCTA and

11125-886: The end. Examples include: A lot of minor airfields without scheduled passenger traffic have ICAO codes but not IATA codes, since the four letter codes allow more number of codes, and IATA codes are mainly used for passenger services such as tickets, and ICAO codes by pilots. In the US, such airfields use FAA codes instead of ICAO. There are airports with scheduled service for which there are ICAO codes but not IATA codes, such as Nkhotakota Airport/Tangole Airport in Malawi or Chōfu Airport in Tokyo, Japan. There are also several minor airports in Russia (e.g., Omsukchan Airport ) which lack IATA codes and instead use internal Russian codes for booking. Flights to these airports cannot be booked through

11250-509: The eroded mounds of dirt that indicated previous canals dug by native peoples who had long since left the area. He formed the Swilling Irrigation and Canal Company that year, dug a large canal that drew in river water, and erected several crop fields in a location that is now within the eastern portion of central Phoenix near its airport. Other settlers soon began to arrive, appreciating the area's fertile soil and lack of frost, and

11375-476: The evening should Arizona observe DST. He went on to say energy use would also rise early in the day "because there would be more lights on in the early morning." Additionally, he said daylight saving time would cause children to go to school in the dark. Since 1979, the city of Phoenix has been divided into urban villages , many of which are based upon historically significant neighborhoods and communities that have since been annexed into Phoenix. Each village has

11500-639: The existing communities of the Akimel O'odham. The Tohono O'odham also lived in the region, but largely to the south and all the way to the Mexican border. The O'odham lived in small settlements as seasonal farmers who took advantage of the rains, rather than the large-scale irrigation of the Akimel. They grew crops such as sweet corn, tapery beans, squash, lentils, sugar cane, and melons, as well as taking advantage of native plants such as saguaro fruits, cholla buds, mesquite tree beans, and mesquite candy (sap from

11625-402: The extreme heat experienced in Phoenix and the surrounding areas during its long summers. There was more new construction in Phoenix in 1959 alone than from 1914 to 1946. Like many emerging American cities at the time, Phoenix's spectacular growth did not occur evenly. It largely took place on the city's north side, a region that was nearly all Caucasian. In 1962, one local activist testified at

11750-528: The farmhouse Swilling constructed became a frequently-visited location in the valley. Lord Darrell Duppa was one of the original settlers in Swilling's party, and he suggested the name "Phoenix", as it described a city born from the ruins of a former civilization. The Board of Supervisors in Yavapai County officially recognized the new town on May 4, 1868, and the first post office was established

11875-555: The first multi-purpose dam, and Roosevelt attended the official dedication on May 18, 1911. At the time, it was the largest masonry dam in the world, forming a lake in the mountains east of Phoenix. The dam would be renamed after Teddy Roosevelt in 1917, and the lake would follow suit in 1959. On February 14, 1912, Phoenix became a state capital, as Arizona was admitted to the Union as the 48th state under President William Howard Taft . This occurred just six months after Taft had vetoed

12000-557: The first three letters of the city in which it is located, for instance: The code may also be a combination of the letters in its name, such as: Sometimes the airport code reflects pronunciation, rather than spelling, namely: For many reasons, some airport codes do not fit the normal scheme described above. Some airports, for example, cross several municipalities or regions, and therefore, use codes derived from some of their letters, resulting in: Other airports—particularly those serving cities with multiple airports—have codes derived from

12125-425: The following format: Most large airports in Canada have codes that begin with the letter "Y", although not all "Y" codes are Canadian (for example, YUM for Yuma, Arizona , and YNT for Yantai , China), and not all Canadian airports start with the letter "Y" (for example, ZBF for Bathurst, New Brunswick ). Many Canadian airports have a code that starts with W, X or Z, but none of these are major airports. When

12250-458: The following month with Swilling as the postmaster. In October 1870, valley residents met to select a new townsite for the valley's growing population. A new location three miles to the west of the original settlement, containing several allotments of farmland, was chosen, and lots began to officially be sold under the name of Phoenix in December of that year. This established the downtown core in

12375-597: The form of " YYZ ", a song by the rock band Rush , which utilizes the Morse code signal as a musical motif. Some airports have started using their IATA codes as brand names , such as Calgary International Airport (YYC) and Vancouver International Airport (YVR). Numerous New Zealand airports use codes that contain the letter Z, to distinguish them from similar airport names in other countries. Examples include HLZ for Hamilton , ZQN for Queenstown , and WSZ for Westport . Predominantly, airport codes are named after

12500-424: The height of an unprecedent heatwave that caused daily highs to top 110 °F (43 °C) or higher that lasted for 31 days straight, Phoenix set its record for the warmest daily low temperature, at 97 °F (36 °C). The city averages approximately 300 days of sunshine, or over 85% of daylight hours, per year, and receives scant rainfall―the average annual total at Phoenix Sky Harbor International Airport

12625-421: The hottest of any major city in the United States. On average, there are 111 days annually with a high of at least 100 °F (38 °C), including most days from the end of May through late September. Highs top 110 °F (43 °C) an average of 21 days during the year. On June 26, 1990, the temperature reached an all-time recorded high of 122 °F (50 °C). The annual minimum temperature in Phoenix

12750-487: The international air booking systems or have international luggage transferred there, and thus, they are booked instead through the airline or a domestic booking system. Several heliports in Greenland have 3-letter codes used internally which might be IATA codes for airports in faraway countries. There are several airports with scheduled service that have not been assigned ICAO codes that do have IATA codes, especially in

12875-535: The mesquite tree). They also hunted local game such as deer, rabbit, and javelina for meat. The Mexican–American War ended in 1848, Mexico ceded its northern zone to the United States, and the region's residents became U.S. citizens. The Phoenix area became part of the New Mexico Territory . In 1863, the mining town of Wickenburg was the first to be established in Maricopa County, to

13000-612: The name of the airport itself, for instance: This is also true with some cities with a single airport (even if there is more than one airport in the metropolitan area of said city), such as BDL for Hartford, Connecticut 's B ra dl ey International Airport or Baltimore's BWI, for B altimore/ W ashington I nternational Airport ; however, the latter also serves Washington, D.C. , alongside Dulles International Airport (IAD, for I nternational A irport D ulles) and Ronald Reagan Washington National Airport (DCA, for D istrict of C olumbia A irport). The code also sometimes comes from

13125-417: The nation in this hazard. PM2.5 particulate matter, which is a component of diesel engine exhaust, and larger PM10 particles, which can come from dust, can both reach concerning levels in Phoenix. In fact, people, pets, and other animals exposed to high concentrations of PM10 dust particles―primarily from dust storms or from disturbed agricultural or construction sites―are at risk of contracting Valley Fever ,

13250-408: The new runway, the existing runway 25/7 became 26R/8L. In 1985, the city of Los Angeles acquired Ontario International Airport outright from the city of Ontario. In 1987, Runway 26R/8L was extended to the east to bring the two runway thresholds side by side, so aircraft would be higher over neighborhoods. 26R/8L became the main departing runway and 26L/8R the main arrival runway. For a number of years,

13375-592: The northwest of Phoenix. Maricopa County had not been incorporated; the land was within Yavapai County , which included the major town of Prescott to the north of Wickenburg. The Army created Fort McDowell on the Verde River in 1865 to forestall Indian uprisings. The fort established a camp on the south side of the Salt River by 1866, which was the first settlement in the valley after the decline of

13500-416: The one they are located in: Other airport codes are of obscure origin, and each has its own peculiarities: In Asia, codes that do not correspond with their city's names include Niigata 's KIJ , Nanchang 's KHN and Pyongyang 's FNJ . EuroAirport Basel Mulhouse Freiburg , which serves three countries, has three airport codes: BSL, MLH, EAP. Some cities have a name in their respective language which

13625-698: The riverbed is often dry or contains little water due to large irrigation diversions. South Mountain separates the community of Ahwatukee from the rest of the city. According to the United States Census Bureau, the city has an area of 517.9 sq mi (1,341 km ), of which 516.7 sq mi (1,338 km ) is land and 1.2 sq mi (3.1 km ), or 0.2%, is water. Maricopa County grew by 711% from 186,000 in 1940 to 1,509,000 by 1980, due in part to air conditioning, cheap housing, and an influx of retirees. The once "modest urban sprawl" now "grew by 'epic' proportions—not only

13750-506: The same first and middle letters, indicating that this rule might be followed only in Germany. Many cities retain historical names in their airport codes, even after having undergone an official name/spelling/transliteration change: Some airport codes are based on previous names associated with a present airport, often with a military heritage. These include: Some airports are named for an administrative division or nearby city, rather than

13875-455: The site of its new research and development center for military electronics. Seeing the same advantages as Motorola, other high-tech companies, such as Intel and McDonnell Douglas , moved into the valley and opened manufacturing operations. By 1950, over 105,000 people resided in the city and thousands more in surrounding communities. The 1950s growth was spurred on by advances in air conditioning, which allowed homes and businesses to offset

14000-500: The station code of Malton, Mississauga , where it is located). YUL is used for Montréal–Trudeau (UL was the ID code for the beacon in the city of Kirkland , now the location of Montréal–Trudeau). While these codes make it difficult for the public to associate them with a particular Canadian city, some codes have become popular in usage despite their cryptic nature, particularly at the largest airports. Toronto's code has entered pop culture in

14125-461: The time of the 2008 financial crisis , JetBlue suspended service to ONT, and major legacy carriers significantly decreased their passenger volume at the airport. Southwest Airlines transferred a significant portion of its Ontario capacity to Los Angeles International Airport (LAX), making LAX fares more competitive with ONT, while being coupled with more attractive frequencies and a wider range of destinations. The surrounding Inland Empire region

14250-482: The town's population stood at 2,453. By 1881, Phoenix's continued growth made the board of trustees obsolete. The Territorial Legislature passed the Phoenix Charter Bill, incorporating Phoenix and providing a mayor-council government; Governor John C. Fremont signed the bill on February 25, 1881, officially incorporating Phoenix as a city with a population of around 2,500. The railroad's arrival in

14375-515: The two-letter code of the radio beacons that were the closest to the actual airport, such as YQX in Gander or YXS in Prince George . Four of the ten provincial capital airports in Canada have ended up with codes beginning with YY, including: Canada's largest airport is YYZ for Toronto Pearson (as YTZ was already allocated to Billy Bishop Toronto City Airport , the airport was given

14500-529: The use of two letters allowed only a few hundred combinations; a three-letter system of airport codes was implemented. This system allowed for 17,576 permutations, assuming all letters can be used in conjunction with each other. Since the U.S. Navy reserved "N" codes, and to prevent confusion with Federal Communications Commission broadcast call signs , which begin with "W" or "K", the airports of certain U.S. cities whose name begins with one of these letters had to adopt "irregular" airport codes: This practice

14625-558: The valley in the 1880s was the first of several events that made Phoenix a trade center whose products reached eastern and western markets. In response, the Phoenix Chamber of Commerce was organized on November 4, 1888. The city offices moved into the new City Hall at Washington and Central in 1888. The territorial capital moved from Prescott to Phoenix in 1889, and the territorial offices were also in City Hall. The arrival of

14750-455: The west (known as "over-ocean" operations) between 00:00 and 06:30. Both of these procedures are employed as long as weather and/or construction activity permits. This is done in an effort to be better neighbors and minimize the noise impact to the surrounding communities as much as possible. Residents of cities west of the airport have complained of increased noise as a result of the airport's refusal to abide by noise abatement rules. The airport

14875-402: The west end). On the east end is a ground transportation center that consolidates the rental car companies in one central location. The Omnitrans 61 bus traverses the airport, providing connections to each of the terminals, rental car and remote parking lots, and public transit stops. General aviation is located at the south side of the airport, although most general-aviation pilots tend to use

15000-490: Was $ 150,000, down from its $ 262,000 peak in 2007. Crime rates in Phoenix have fallen in recent years, and once troubled, decaying neighborhoods such as South Mountain , Alhambra , and Maryvale have recovered and stabilized. On June 1, 2023, the State of Arizona announced the decision to halt new housing development in the Phoenix metropolitan area that relies solely on groundwater due to a predicted water shortfall. Phoenix

15125-459: Was 1,512,986, the fifth largest just ahead of Philadelphia. After leading the U.S. in population growth for over a decade, the sub-prime mortgage crisis, followed by the recession, led to a slowing in the growth of Phoenix. There were approximately 77,000 people added to the population of the Phoenix metropolitan area in 2009, which was down significantly from its peak in 2006 of 162,000. Despite this slowing, Phoenix's population grew by 9.4% since

15250-679: Was an advertising slogan invented to boost tourism. During World War II, Phoenix's economy shifted to that of a distribution center, transforming into an "embryonic industrial city" with the mass production of military supplies. There were three air force fields in the area: Luke Field , Williams Field , and Falcon Field , as well as two large pilot training camps, Thunderbird Field No. 1 in Glendale and Thunderbird Field No. 2 in Scottsdale. A town that had just over 65,000 residents in 1940 became America's fifth largest city by 2020, with

15375-538: Was hit hard by the financial crisis, with the nearby city of San Bernardino declaring bankruptcy. The airport suffered a 40% decline in traffic between 2007 and 2012, during which time traffic at LAX recovered to surpass prerecession levels. Ownership and control of the airport became an issue in late 2010, when the city of Ontario, supported by the Southern California Association of Governments , criticized and questioned LAWA's operation of

15500-451: Was rejected. Local groups then sued the city of Los Angeles, a suit that was temporarily suspended when both sides agreed to attempt to work together. In 2015, Los Angeles World Airports agreed to turn over ownership of Ontario Airport to the city of Ontario. LAWA was "to be reimbursed for its investments in the facility, job protection for the facility's 182 employees and the settlement of a lawsuit in which Ontario sought to regain control of

15625-521: Was settled in 1867 as an agricultural community near the confluence of the Salt and Gila Rivers and was incorporated as a city in 1881. It became the capital of Arizona Territory in 1889. Its canal system led to a thriving farming community with the original settlers' crops, such as alfalfa , cotton , citrus , and hay , remaining important parts of the local economy for decades. Cotton, cattle , citrus, climate , and copper were known locally as

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