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The three-letter codes used to identify airports and metropolitan areas globally are known as IATA airport codes, or simply location identifiers. These codes are defined by the International Air Transport Association (IATA) and are published semi-annually in the IATA Airline Coding Directory. While some airports have IATA codes, others use internal country codes for bookings, such as some minor airports in Russia. The IA in airport codes such as IAH (Houston), IAD (Dulles), and IAB (Witchita) does not necessarily stand for anything, although some sources claim that it could stand for International Airport.
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What You'll Learn
- IATA airport codes are three-letter geocodes designating airports and metropolitan areas worldwide
- The assignment of these codes is governed by IATA Resolution 763 and administered by the IATA's headquarters in Montreal, Canada
- Some airports in the US retained their NWS codes and simply appended an X at the end
- Examples of IATA codes include YYZ for Toronto Pearson and YUL for Montréal–Trudeau
- IATA codes should not be confused with the FAA identifiers of U.S. airports
IATA airport codes are three-letter geocodes designating airports and metropolitan areas worldwide
IATA airport codes, also known as IATA location identifiers, are three-letter geocodes used to identify airports and metropolitan areas worldwide. Defined by the International Air Transport Association (IATA), these codes are used in various contexts, such as baggage tags attached at airport check-in desks. The assignment of these codes is governed by IATA Resolution 763 and administered by IATA's headquarters in Montreal, Canada.
While the codes are typically three letters, some airports have alphanumeric codes. For example, the code for Fresno Yosemite International Airport is FAT, derived from its previous name, Fresno Air Terminal. Orlando International Airport uses the code MCO, which stands for McCoy Air Force Base, honouring a wing commander who crashed at the field in 1958. Spokane International Airport is identified as GEG, referencing its location on the former Geiger Field, named after Major Harold Geiger.
Some airport codes bear a resemblance to the location or airport name. For instance, YUL is used for Montréal–Trudeau in Canada, with UL being the former ID code for the beacon in Kirkland. Similarly, YVR represents Vancouver International Airport, and YYC stands for Calgary International Airport. In India, the code for Mumbai (formerly Bombay) is BOM, and MAA represents Chennai (formerly Madras).
However, not all airport codes have a direct correlation with their location. For example, Toronto's code is YYZ, which has entered pop culture through the song "YYZ" by the rock band Rush. Some speculate that the "IA" in airport codes like IAH (Houston) and IAD (Dulles) could stand for "International Airport." Still, it's worth noting that IATA historically tries to assign codes that resemble the city or airport name.
In summary, IATA airport codes serve as unique identifiers for airports and metropolitan areas worldwide, aiding in efficient travel operations and baggage handling. While some codes may have cryptic meanings, others bear a closer resemblance to their respective locations, and a few, like LAX, have no clear meaning at all.
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The assignment of these codes is governed by IATA Resolution 763 and administered by the IATA's headquarters in Montreal, Canada
The International Air Transport Association (IATA) is responsible for assigning airport codes, also known as location identifiers. These are three-letter codes that are designated to airports worldwide. The IATA prioritises assigning airport codes that resemble the name of the city or airport to some degree.
The assignment of these codes is governed by IATA Resolution 763, which is part of the Passenger Services Conference Resolutions Manual. This manual contains all the resolutions and recommended practices (RPs) published by the IATA for baggage handling processes and prorates. The IATA Traffic Conferences develop and adopt passenger and baggage standards, which are then voted on by all IATA members. Once adopted, these resolutions are binding on all member airlines.
The IATA headquarters in Montreal, Canada, administers the codes, which are published biannually in the IATA Airline Coding Directory. The IATA also provides codes for railway stations and airport handling entities.
While most countries use the ICAO codes in their official aeronautical publications, the IATA codes are widely recognised and used, especially in the context of airport identifiers on baggage tags.
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Some airports in the US retained their NWS codes and simply appended an X at the end
Airport codes are three-letter signifiers that airports are recognised by worldwide. They were established for pilots' convenience in the 1930s, originating from two-letter identification codes used by the National Weather Service (NWS). As the aviation industry grew, cities and towns without weather station codes required identification, so a three-letter system was implemented, allowing for 17,576 permutations.
Other countries have followed this approach, such as Dubai, which adopted DXB, and Berlin Tegel Airport, which uses TXL. Canada is an exception, with most airport codes beginning with a 'Y', regardless of the city or airport name. This is because when international codes were created in cooperation with the US, Canada used the weather station codes for its airports, changing the "Y" to a "Z" if it conflicted with an existing code.
In the US, minor airfields without scheduled passenger traffic have ICAO codes but not IATA codes. These airfields use FAA codes instead.
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Examples of IATA codes include YYZ for Toronto Pearson and YUL for Montréal–Trudeau
IATA airport codes are used to identify airports and weather reporting stations. These codes typically bear little to no similarity to the name of the city in which the airport is located.
Canada is one such example, with YYZ representing Toronto Pearson International Airport, and YUL representing Montréal–Trudeau. The YTZ code was already assigned to Billy Bishop Toronto City Airport, so the station code of Malton, Mississauga, where Toronto Pearson International Airport is located, was used instead.
The Y prefix in these codes indicates that the station shared its location with an airport. Some codes have become more popular than others, with Toronto's YYZ entering pop culture in the form of a song by the rock band Rush.
Other examples of IATA codes include IAH for Houston, IAD for Dulles, and IAB for Witchita. These codes do not necessarily stand for anything, but IATA has historically tried to assign codes that resemble the name of the city or airport in some way. For instance, BNA, the code for the international airport in Nashville, Tennessee, was derived from its former name, Berry Field (Berry-Nashville).
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IATA codes should not be confused with the FAA identifiers of U.S. airports
IATA codes, also known as IATA location identifiers, are three-letter geocodes that are used to designate airports, metropolitan areas, and certain railway stations around the world. They are defined by the International Air Transport Association (IATA) and are used in baggage tags, tickets, and other traffic documents.
The assignment of these codes is governed by IATA Resolution 763 and is administered by the IATA's headquarters in Montreal, Canada. The codes are published semi-annually in the IATA Airline Coding Directory.
While most FAA identifiers agree with the corresponding IATA codes, they should not be confused with each other. For example, the FAA identifier for Saipan is GSN, while its IATA code is SPN. Some FAA identifiers also coincide with IATA codes of non-U.S. airports.
Canada's airport codes, such as YUL in Montreal and YYZ in Toronto, have unusual structures that bear little to no similarity to the city's name. These codes originated from the two-letter codes used to identify weather reporting stations in the 1930s. The letter "Y" was used to indicate that the station shared its location with an airport.
In the case of Houston's airport code, IAH, and Dulles' airport code, IAD, the "IA" does not necessarily stand for anything in particular. IATA has historically tried to assign airport codes that resemble the city or airport name in some way.
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Frequently asked questions
The 'IA' in these airport codes does not necessarily stand for anything. IATA (International Air Transport Association) has historically tried to assign airport codes that resemble the name of the city or airport. For example, the airport code for George Bush Intercontinental Airport in Houston is IAH, and IAD stands for International Airport Dulles.
An IATA airport code, also known as an IATA location identifier, is a three-letter code that designates airports and metropolitan areas worldwide. These codes are defined by the International Air Transport Association (IATA) and are used on baggage tags at airport check-in desks, for example.
No, not all airports have an IATA code. Some minor airfields without scheduled passenger traffic have ICAO (International Civil Aviation Organization) codes but not IATA codes.
