Ruth Haines
An IATA airport code, also known as an IATA location identifier, is a three-letter code used to identify airports and metropolitan areas worldwide. These codes are defined by the International Air Transport Association (IATA) and are used for reservations, baggage, and flight planning. The codes are often derived from the airport's name, location, or former name, and they are published in the IATA Airline Coding Directory. For example, the code BDL represents Bradley International Airport in Hartford, Connecticut, while BWI stands for Baltimore/Washington International Airport. These codes provide a standardised and efficient way to refer to specific airports, making communication and operations in the aviation industry more streamlined.
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What You'll Learn
IATA airport codes are three-letter geocodes
An IATA airport code is a three-letter geocode that designates many airports and metropolitan areas worldwide. IATA stands for the International Air Transport Association, which governs the assignment of these codes. These codes are prominently displayed on baggage tags at airport check-in desks. They are published twice a year in the IATA Airline Coding Directory.
The three-letter code system is used to identify locations like airports, bus or ferry stations involved in intermodal airline travel. The codes are typically named after the airport itself or the city it serves. For example, BDL stands for Bradley International Airport in Hartford, Connecticut, and BWI stands for Baltimore/Washington International Airport.
In some cases, the code may be derived from the airport's former or unofficial name. For instance, Chicago's O'Hare International Airport is coded ORD for Orchard Field, its original name, and Kahului Airport's OGG comes from local aviation pioneer Jimmy Hogg.
When creating international codes in cooperation with the United States, Canada changed the letter "Y" to "Z" if it conflicted with an existing airport code, as "Y" was seldom used in the US. As a result, most major Canadian airport codes start with "Y," followed by two letters from the city's name, such as YOW for Ottawa and YYC for Calgary.
Some airports have embraced their IATA codes as brand names. For example, Calgary International Airport (YYC) and Vancouver International Airport (YVR) have done so.
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They are defined by the International Air Transport Association
An IATA airport code, also called an IATA location identifier, IATA station code, or location identifier, is a three-letter code that represents many airports and metropolitan areas worldwide. These codes are defined by the International Air Transport Association (IATA) and are used to identify airports and certain railway stations. The IATA is headquartered in Montreal, Canada, and the assignment of these codes is governed by IATA Resolution 763. The codes are published twice a year in the IATA Airline Coding Directory.
The three-letter IATA codes are widely used and can be seen on baggage tags at airport check-in desks. They are also used by pilots, controllers, travel agents, frequent flyers, computers, and baggage handlers, as they are easier to use than full airport names. For example, LAX is used for Los Angeles International Airport.
The codes are often derived from the airport's name, such as O'Hare International Airport in Chicago, coded ORD for its original name, Orchard Field. In some cases, the code may be based on the airport's unofficial name, like Kahului Airport's OGG, honouring local aviation pioneer Jimmy Hogg. Some cities with a single airport may also have a code reflecting the city's name, like BDL for Bradley International Airport in Hartford, Connecticut.
In large metropolitan areas, airport codes may be named after the airport itself rather than the city it serves. For example, Chicago's O'Hare International Airport is coded ORD for Orchard Field, its former name. Additionally, some airports have started using their IATA codes as brand names, such as Calgary International Airport (YYC) and Vancouver International Airport (YVR).
The ICAO airport code is another identification system, using four alphanumeric characters to designate airports globally. These codes are defined by the International Civil Aviation Organization and are used by air traffic control for flight planning and airline operations.
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Canadian airport codes often start with 'Y'
An IATA airport code, also known as an IATA location identifier, is a three-letter geocode designating many airports and metropolitan areas around the world. These codes are defined by the International Air Transport Association (IATA) and are used to identify airports and metropolitan areas. While there are a handful of cities with strange airport codes, Canadian airport codes are unique in that they almost all start with the letter Y.
The use of the letter Y in Canadian airport codes dates back to the 1930s when aviation services were booming. At that time, it was important to know whether an airport had a weather or radio station on its premises for safety and landing reasons. The letter Y was added in front of the existing radio call sign to indicate the presence of a weather station. This was often the case for airports in Canada, which had weather stations located on-site. As a result, when the three-letter system was imposed in the 1940s, most Canadian airports had already adopted the Y prefix.
There are some exceptions to this trend, as not every airport in Canada starts with the letter Y. Smaller municipal airports, heliports, and private jet runways often have codes beginning with other letters, such as W, X, or Z. These codes indicate the absence of a weather station at these facilities. Additionally, some Canadian airports append the two-letter code of the closest radio beacons instead of using the Y prefix.
Despite the Y prefix, Canadian airport codes often bear no resemblance to the actual name of the airport or the city it serves. For example, Toronto's two airports have the codes YYZ and YTZ, while Montreal's airport code is YUL. These codes can be challenging for travellers to associate with specific cities, but some have become popular and even entered pop culture, such as the song "YYZ" by the rock band Rush.
In summary, Canadian airport codes often start with the letter Y due to historical reasons and the presence of weather stations at many airports. However, there are exceptions to this trend, and the codes may not always correspond directly to the airport or city name.
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Some airport codes are named after the airport itself
An IATA airport code is a three-letter geocode designating many airports and metropolitan areas worldwide. The International Air Transport Association (IATA) governs the assignment of these codes, which are published semi-annually in the IATA Airline Coding Directory.
In large metropolitan areas, airport codes are often named after the airport itself instead of the city it serves. For example, Chicago O'Hare's airport code is ORD, derived from the airport's former name, Orchard Field. Similarly, the code for Chicago Executive Airport is PWK, which stands for its previous name, Palwaukee Municipal Airport. Other examples include Bucharest (BUH) – Otopeni (OTP), Buenos Aires (BUE) – Ezeiza (EZE), and Jakarta (JKT) – Soekarno–Hatta (CGK).
Some airport codes are easy to decipher, such as Miami International Airport (MIA) and Athens International Airport (ATH). However, some codes have become popular despite their cryptic nature, like Toronto's YYZ, which has even entered pop culture through the song "YYZ" by the rock band Rush.
While most airport codes are assigned based on the name of the airport, the city, or some other meaningful identifier, some codes have obscure origins. For instance, Nashville's airport code, BNA, comes from its former name, Berry Field, or Berry Nashville Airport. On the other hand, some codes are simply fun, like St. Pete-Clearwater International Airport's code, PIE, which the airport marketing team embraced with the website fly2pie.com.
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ICAO airport codes are alphanumeric and four characters long
Airport codes are three- or four-letter identifiers assigned to airports around the world. The three main types of airport codes are ICAO, IATA, and FAA LIDs. ICAO airport codes are alphanumeric and four characters long. They are used globally for official purposes in flight operations, Air Traffic Control, and airline flight identification. The first letter of each airport's code is assigned based on a global map that designates specific regions, such as "K" for the United States, "Y" for Australia, "S" for South America, and "E" for Germany, Scandinavia, and the UK. The remaining letters identify the airport within that region. For example, Heathrow Airport in London has the ICAO code EGLL, with "EG" indicating the United Kingdom, and "LL" identifying the airport within that country.
ICAO codes are assigned by the International Civil Aviation Organization (ICAO), a United Nations organization that represents aviation authorities and focuses on international civil aviation regulations. These four-letter codes are commonly used within the aviation industry and on private flight-tracking services like FlightAware. In contrast, passengers more often encounter IATA codes on their tickets and luggage.
ICAO codes are updated when necessary, such as when an airport is renamed. For example, when Johannesburg Airport in South Africa was renamed from Jan Smuts International Airport to O. R. Tambo International Airport, its ICAO code was updated from FAJS to FAOR. Some airports have two ICAO codes, typically when the airport is shared by civilian and military users. For instance, Frankfurt Airport in Germany has the ICAO code EDDF, while the Rhein-Main Air Base was assigned the ICAO code EDAF until its closure.
ICAO codes are distinct from IATA and FAA LIDs. IATA codes, issued by the International Air Transport Association, are three-letter codes that are widely recognised by travellers. They are used for flight ticketing, baggage handling, and cargo shipping. These codes are derived from the name of the airport or the city it serves, and they have no geographic structure, unlike ICAO codes. FAA LIDs, on the other hand, are three or four-character alphanumeric codes assigned by the Federal Aviation Administration to airports within the United States.
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Frequently asked questions
An airport code is a three-letter geocode used to identify airports and metropolitan areas worldwide.
The International Air Transport Association (IATA) assigns airport codes, which are published semi-annually in the IATA Airline Coding Directory.
Airport codes are used to simplify airport identification and are easier to use than full airport names. They are used on baggage tags, in flight reservations, and by air traffic control for flight planning and airline operations.
Airport codes are typically named after the airport itself or the city it serves. In some cases, they may be derived from the airport's former or unofficial name, or they may be based on the closest radio beacons.
Yes, there are IATA codes, which are three-letter codes used for reservations and baggage tagging, and ICAO codes, which are four-character alphanumeric codes used by air traffic control for flight planning and airline operations.
