What is an IATA airline designator?

It is a 2-character code the International Air Transport Association assigns to each airline, used in flight numbers, tickets, and booking systems. British Airways is BA, Air France is AF. A flight number like BA286 starts with the designator.

Why do some codes contain a number?

There are only so many two-letter combinations, so IATA also issues alphanumeric codes such as U2 for easyJet, B6 for JetBlue, and 6E for IndiGo. The first or second character can be a digit.

How is the IATA code different from the ICAO code?

IATA codes are 2 characters and face passengers through tickets and flight numbers. ICAO codes are 3 letters and are used operationally in air traffic control. British Airways is BA in IATA and BAW in ICAO, with the callsign Speedbird.

A callsign is the spoken name pilots and controllers use on the radio, which is often different from the airline brand. British Airways uses Speedbird, KLM uses KLM, and Aer Lingus uses Shamrock.

Does the tool send my search anywhere?

No. It runs entirely in your browser against a built-in table of major airlines, so nothing you type leaves your device.

Airline IATA Code Lookup

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Every airline has a short two-character IATA designator that appears at the start of its flight numbers and on tickets. This tool decodes those codes: type the two characters and it returns the airline name, its home country, and the radio callsign that pilots use on frequency.

How it works

IATA controls the two-character namespace. Because there are only a few hundred purely alphabetic combinations and far more airlines, IATA also issues alphanumeric codes, which is why you see U2 for easyJet or 6E for IndiGo. The designator is distinct from the ICAO three-letter code used in air traffic control and from the spoken callsign — British Airways is BA in IATA, BAW in ICAO, and “Speedbird” on the radio.

The tool searches your text against the code, the airline name, the country, and the callsign, so any of those will find the carrier.

Tips and example

To identify a flight, take the first two characters of the flight number and search them: LH441 starts with LH, which the tool resolves to Lufthansa. To explore a country’s carriers, search the country name, for example United States to list the major US airlines. The reference set covers major international operators; small regional and charter carriers may not appear.