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56-399: Don Mueang International Airport ( IATA : DMK , ICAO : VTBD ) — known as Bangkok International Airport before 2006 — is one of two international airports serving Bangkok , the capital of Thailand , the other being Suvarnabhumi Airport (BKK). The airport is considered one of the world's oldest international airports and one of Asia's oldest operating airports. It officially opened as

112-404: A Royal Thai Air Force (RTAF) base on 27 March 1914, although it had been in use earlier. Commercial flights began in 1924, making it one of the world's oldest commercial airports. The airport consists of Terminal 1 for international flights and Terminal 2 for domestic flights, which are connected by a unique glass exterior elevated walkway. The airport also featured an exterior walkway connected to

168-486: A capacity of 20 million passengers yearly and is scheduled to be completed by 2029. The 36.8 billion baht project will raise overall airport capacity from 30 to 50 million annually. Terminal 3 is voted 2024 second best terminal for low-cost airlines in Southeast Asia and 10 overall in the world by Skytrax . In 2019, the airport reached its full capacity of 52 flights per hour or about 700–800 flights per day. By

224-567: 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

280-405: A technical stop at Don Mueang. It departed to China the following day. Don Mueang International Airport has three terminals. Terminal 1 is used for international flights and Terminal 2 for domestic flights. The opening of Terminal 2 has raised the airport's capacity to 30 million passengers per year. Terminal 3, the old domestic terminal, has been abandoned since 2011. The new Terminal 3 will have

336-944: A three-kilometre monorail to link the airport with the BTS Green Line . Approval of the three billion baht project was expected by the end of 2020. IATA airport code The assignment of these codes 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 ,

392-411: A unique ICAO-code. The recommendations for ICAO airport codes were adopted on 24 March 1959, and came into force on 1 October the same year. ICAO codes are separate and different from IATA codes , the latter of which have three letters and are generally used for airline timetables , reservations, and baggage tags. For example, the IATA code for London 's Heathrow Airport is LHR and its ICAO code

448-401: A year. The third phase of Don Mueang's 36.8 billion baht expansion is scheduled to start in the second half of 2023 and will be completed in 2029. It aims to increase the airport's passenger capacity to 50 million per year. On 7 September 2022 at 21:40 local time, an Airbus A380 made an emergency landing on runway 21R at Don Mueang. On 30 August 2024, an Airbus Beluga (A300-600ST) made

504-443: Is EGLL. IATA codes are commonly seen by passengers and the general public on flight-tracking services such as FlightAware . In general IATA codes are usually derived from the name of the airport or the city it serves, while ICAO codes are distributed by region and country. Far more aerodromes (in the broad sense) have ICAO codes than IATA codes, which are sometimes assigned to railway stations as well. The selection of ICAO codes

560-509: 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

616-712: Is a four-letter code designating aerodromes around the world. These codes, as defined by the International Civil Aviation Organization and published quarterly in ICAO Document 7910: Location Indicators , are used by air traffic control and airline operations such as flight planning . ICAO codes are also used to identify other aviation facilities such as weather stations , international flight service stations or area control centers , whether or not they are located at airports. Flight information regions are also identified by

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672-480: Is a pseudo-code, used in flight plans for aerodromes with no ICAO code assigned. ICAO codes are sometimes updated. Johannesburg Airport in Johannesburg , South Africa, for instance, was formerly known as Jan Smuts International Airport, with code FAJS. When the airport was renamed O. R. Tambo International Airport, its ICAO code was updated to FAOR. Some airports have two ICAO codes, usually when an airport

728-469: Is approximately 1–1.5 hours from Suvarnabhumi Airport by rail or bus. There are also direct buses between the airports operated by Airport Shuttle Bus. The airport has two main access routes. Among these the most convenient route is via the Don Mueang Tollway . Another main airport entrance is Vibhavadi Rangsit Road . The two routes run parallel, one over the other. Four bus routes service

784-617: 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

840-735: Is based in the United Kingdom . On the other hand, IATA codes do not provide geographic reference. For example, LHR, representing Heathrow, does not enable one to deduce the location of the airport LHV with any greater certainty; it is William T. Piper Memorial Airport in Lock Haven, Pennsylvania in the United States . There are a few exceptions to the regional structure of the ICAO code that have been historically for political or administrative reasons. RAF Mount Pleasant air base in

896-523: 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

952-513: 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

1008-543: 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

1064-486: Is partly delegated to authorities in each country, while IATA codes, which have no geographic structure, must be decided centrally by IATA. The first one or two letters of the ICAO code indicate the country; the remaining letters identify the airport. ICAO codes are used partly for geographical context. For example, the ICAO code for Heathrow International Airport in London, is EGLL, with its first letters reflecting that it

1120-510: Is projected to grow to eight million in 2012. As of 2012, Terminal 1 is capable of handling 18.5 million passengers annually. On 7 September 2013, Airports of Thailand announced its three billion baht renovation to reopen Terminal 2 as early as May 2014. Terminal 1's passengers in 2013 will likely reach 16 million against its capacity of 18.5 million. Completion of Terminal 2 in December 2015 increases Don Mueang's passenger capacity to 30 million

1176-700: Is shared by civilian and military users. Frankfurt Airport in Frankfurt , Germany, for instance, has been assigned ICAO code EDDF while Rhein-Main Air Base was assigned ICAO code EDAF until its closure. Sion Airport in Switzerland has code LSGS while its military facilities have the ICAO code LSMS. Brussels Airport in Brussels , Belgium, has the ICAO code EBBR for its civilian facilities, and Melsbroek Air Base has been assigned ICAO code EBMB, even though

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1232-416: 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

1288-571: 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

1344-692: The Falkland Islands , for instance, is assigned the ICAO code EGYP as though it were in the United Kingdom, but nearby civilian Port Stanley Airport is assigned SFAL, consistent with South America . Saint Pierre and Miquelon is controlled by France, and airports there are assigned LFxx as though they were in Europe. Kosovo is assigned the code BKxx grouping it with Greenland and Iceland rather than its geographical neighbors which have Lxxx (described below). Jerusalem International Airport

1400-606: The Jezero Crater on Mars is assigned the special ICAO code JZRO. Codes beginning with I (Ixx and Ixxx) are often used for navigational aids such as radio beacons, while the Q code is reserved for international radiocommunications and non-geographical special use. In Russia , Latin letter X, or its Morse / Baudot Cyrillic equivalent Ь , are used to designate government, military, and experimental aviation airfields in internal airfield codes similar in structure and purpose to ICAO codes but not used internationally. ZZZZ

1456-521: The Amari hotel. The first commercial flight was an arrival by KLM Royal Dutch Airlines . In September 2006, Don Mueang Airport was closed and to be replaced by the new Suvarnabhumi Airport , before reopening on 24 March 2007 after renovations. Since the reopening, Don Mueang has become a regional commuter flight hub and the de facto low-cost airline hub. In 2015, it became the world's largest low-cost carrier airport . It still maintains its position as

1512-524: The Ministry of Transport recommended temporarily reopening Don Mueang while touch up work proceeded on some taxiways at Suvarnabhumi. The recommendation was subject to approval by the Thai cabinet. On 25 March 2007, the airport officially reopened for some domestic flights. Because of the 2011 Thailand floods that affected Bangkok and other parts of Thailand, the airport was closed as flood waters flowed onto

1568-479: 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 . ICAO airport code The ICAO airport code or location indicator

1624-481: 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

1680-440: 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,

1736-418: 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

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1792-640: The airport, route A1 runs between the airport and Bangkok Bus Terminal (Chatuchak) , route A2 runs between the airport and Victory Monument , route A3 runs between the airport and Lumphini Park , and route A4 runs between the airport and Sanam Luang . Don Mueang International Airport is served by the SRT Dark Red Line and the State Railway of Thailand intercity services at Don Mueang railway station that connects to central Bangkok at Krung Thep Aphiwat Central Terminal . AOT plans to build

1848-502: 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

1904-844: The end of 2019, it is expected to top its maximum passenger handling capacity of 40 million. Airport manager AoT forecasts 41 million passengers in 2020 and 45 million by 2023. The airport was designed to serve a maximum of 30 million passengers annually. Building additional runways is not possible. AoT is encouraging airlines to use wide-body aircraft at Don Mueang to increase passenger loads from 100–200 passengers to about 300 per aircraft. Total passenger traffic through Don Mueang jumped 40.7 percent to 30.3 million in 2015, with international numbers rising 53.1 percent to 9.17 million and domestic passengers increasing 35.9 percent to 21.1 million. Aircraft movements rose by 29.8 percent to 224,074, including 158,804 domestic (up 26.2 percent) and 65,270 international (up 39.3 percent). Don Mueang International Airport

1960-934: 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

2016-557: 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

2072-478: 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

2128-597: 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

2184-487: 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

2240-590: The invention of the first airplane by the Wright brothers on 17 December 1903. In 1933, the airfield was the scene of heavy fighting between royalists and government forces during the Boworadet Rebellion . The airfield was used by the occupying Japanese during World War II , and was bombed and strafed by Allied aircraft on several occasions. After the war had finished in September 1945, the airfield

2296-612: 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

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2352-416: 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

2408-488: The opening of Suvarnabhumi Airport. But the higher operating costs of the new airport and safety concerns over cracked runways at the new airport caused many to seek a return to Don Mueang. Low-cost airlines led demands for a reopening of the airport. Airports of Thailand released a report at the end of 2006 which furthered this effort. The report proposed reopening DMK as a way to avoid or delay second-stage expansion which had been planned for Suvarnabhumi. On 30 January 2007,

2464-529: The opening of Suvarnabhumi, the airport used the IATA airport code BKK and the name was spelled "Don Muang". After Suvarnabhumi opened for commercial flights, the spelling was changed and as "Don Mueang" it assigned the new IATA airport code DMK , though it still retains the ICAO airport code VTBD . The traditional spelling is still used by many airlines and by most Thais. Commercial carriers deserted Don Mueang at

2520-512: The runways and affected the lighting. Don Mueang reopened on 6 March 2012. On 16 March 2012, the Government of Thailand under Prime Minister Yingluck Shinawatra ordered all low-cost , chartered , and non-connecting flights to relocate to Don Mueang. This ended the single-airport policy. Airports of Thailand was ordered to encourage low-cost carriers to shift to Don Mueang to help ease congestion at Suvarnabhumi Airport. Suvarnabhumi Airport

2576-506: 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

2632-430: The second-busiest airport in the country . Don Mueang previously carried the IATA airport code BKK , which was reassigned to Suvarnabhumi, and was an important hub of Asia and the hub of Thai Airways International prior to its closure. At its peak, it served most air traffic for the entire country, with 80 airlines operating 160,000 flights and handling over 38 million passengers and 700,000 tons of cargo in 2004. It

2688-500: 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

2744-636: The transfer of aircraft of the Royal Thai Air Force . Three years earlier, Thailand had sent three army officers to France to train as pilots. On completion of their training in 1911, the pilots were authorized to purchase seven aircraft, three Breguets and four Nieuports , which formed the basis of the Royal Thai Air Force. Sra Pathum airfield was established in February 1911 with an arrival by Orville Wright, seven years after

2800-524: The two airports share runways and ground and air control facilities. In small countries like Belgium or the Netherlands, almost all aerodromes have an ICAO code. For larger countries like the UK or Germany this is not feasible, given the limited number of letter codes. Some countries have addressed this issue by introducing a scheme of sub-ICAO aerodrome codes; France, for example, assigns pseudo ICAO codes in

2856-515: 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

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2912-529: 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

2968-691: Was assigned both LLJR (its Israeli persona) as well as OJJR (its Jordanian persona), but the airport itself fell into disuse. In the contiguous United States and Canada, many airports have ICAO codes that are simply copies of their three-letter IATA codes, with the geographical prefix added on (e.g., YEG and CYEG both refer to Edmonton International Airport , while IAD and KIAD both refer to Washington Dulles International Airport ). This similarity does not extend to Alaska (PAxx), Hawaii (PHxx), or U.S. territories. Kahului Airport on Maui , for instance, has an IATA code of OGG and an ICAO code of PHOG. ICAO airport codes do not begin with I or J or X or Q, though

3024-473: Was designed to handle 45 million passengers per year, but it processed 48 million in 2011 and the number was expected to reach 53 million in 2012. Some ten airlines may relocate to Don Mueang. Budget airline Nok Air is already serving flights from and to Don Mueang. Nok Air handles about four million passengers per year. Orient Thai Airlines and Thai AirAsia have also started operations at Don Mueang. Thai AirAsia carried 7.2 million passengers in 2011. The number

3080-528: Was occupied by the RAF during the brief British occupation of Thailand until March 1946 when 211 Squadron, which moved there in October 1945, was disbanded. In May 2005, Thai Airways International introduced nonstop service between Bangkok and New York City using Airbus A340-500s. The night of 27–28 September 2006 was the official end of operations at Don Mueang airport. The last commercial flights were: Before

3136-642: Was then the 14th-busiest airport in the world and second in Asia by passenger volume. Currently, Don Mueang is the main operating base for Nok Air , Thai AirAsia , Thai AirAsia X and Thai Lion Air . "Don Mueang" airfield was the second established in Thailand, after Sra Pathum Airfield , which is now Sra Pathum horse racing course, known as the Royal Bangkok Sports Club . The first flights to Don Mueang were made on 8 March 1914 and involved

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