Callsign AUA is Austrian Airlines
WHAT AIRLINE IS AUA?
AUA is the ICAO three-letter callsign prefix for Austrian Airlines. When a radio scanner, flight tracker or radar scope shows a flight like AUA123 or AUA45XY overhead, that's a Austrian 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 AUA for its type, registration, route and photo.