Master the ZAB Center Callsigns 2026 – Soar to New Heights in Aviation!

Airline codes come in two main systems: IATA codes, which are two letters used on tickets and baggage tags, and ICAO codes, which are three letters used in flight planning and air traffic control. The three-letter code AAL is the ICAO designator for American Airlines. In IATA terms, American Airlines is AA, not AAL. The other airlines have IATA codes like Allegiant with G4, Air Canada with AC, and Air France with AF. So, while AAL identifies American Airlines in the ICAO system, the corresponding IATA code for that airline is AA.