Callsign FFT is Frontier Airlines
WHAT AIRLINE IS FFT?
FFT is the ICAO three-letter callsign prefix for Frontier Airlines. When a radio scanner, flight tracker or radar scope shows a flight like FFT123 or FFT45XY overhead, that's a Frontier 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 FFT for its type, registration, route and photo.