Callsign AAR is Asiana Airlines
WHAT AIRLINE IS AAR?
AAR is the ICAO three-letter callsign prefix for Asiana Airlines. When a radio scanner, flight tracker or radar scope shows a flight like AAR123 or AAR45XY overhead, that's a Asiana 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 AAR for its type, registration, route and photo.