Airport Code Abbreviations

By Business Editor

There are two different codes that each airport has, the IATA code and the ICAO code ...

An airport code is a three or four letter cryptogram used to identify each airport. There are two different codes that each airport has, the IATA code and the ICAO code. The IATA code is more commonly known, and is used for airline travel, and for things such as baggage transfers. The ICAO code is used for flight planning and international airport flights.

The IATA abbreviation stands for the International Air Transport Association. The airport codes distributed by the IATA are used by airports everywhere, especially to mark luggage and find airline seats. The codes are issued by the IATA headquarters in Montreal, and are published biannually in the IATA coding directory. After being issued, all airports are given a unique three letter cryptogram. Codes that are defunct for any reason may be used again at a later date for some other airport, after a suitable time period has passed. These codes are highly useful for airport security, air cargo tracking, and for international airport transfers. If an airport does not have their own code because they are too small, then they are given a Location Identifier instead. The IATA also issues codes for railways.

IACO stands for the International Civil Aviation Organization. The IACO issues four letter codes to each airport. The main focus for these ciphers is with international transport and travel. The IACO airport code for each airport gets issued through the ICAO Document 7910: Location Indicators. They are used for air traffic control, flight planning and air cargo tracking, rather than for the general public. The IATA code for Heathrow airport is LHR, but the ICAO code is EGLL. IACO codes are broken down by regions, and that is how they get their names. In most cases, the first letter stands for the continent or region, the second letter stands for the country, and the third and fourth letters stand for the name of the specific airport. For airports with no IACO codes, if needed, the fake code of ZZZZ can be temporarily used.

Both the IATA and ICAO airline codes are used to identify airports. However, each airport code is significant to a specific airdrome. The IATA codes are used for things such as baggage transfers between airports and for reserving airline seats, and the ICAO codes are used for things such as airport flight plans and transport information. With either code, it is nice to know that the airports have you covered.

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