QX
Horizon Air
Also known as: Horizon Airlines
United States
IATA
QX
Quebec X-ray
ICAO
QXE
Radio Callsign
HORIZON AIR
Example: "HORIZON AIR One Two Three" for QX123
About the "HORIZON AIR" Callsign
When Horizon Air pilots communicate with air traffic control, they identify themselves using the radio callsign "HORIZON AIR" followed by the flight number spoken in aviation pronunciation. For example, flight 456 would be "HORIZON AIR Four Five Six." Radio callsigns are assigned by ICAO and are distinct from the airline's marketing name.