Callsign AAL is American Airlines
WHAT AIRLINE IS AAL?
AAL is the ICAO three-letter callsign prefix for American Airlines. When a radio scanner, flight tracker or radar scope shows a flight like AAL123 or AAL45XY overhead, that's a American Airlines aircraft talking to air traffic control.
Spot one yourself: open the live scope, enter your postcode, and tap any blip whose callsign starts with AAL for its type, registration, route and photo.