C5
CommutAir
United States
IATA
C5
Charlie Five
ICAO
UCA
Radio Callsign
COMMUTAIR
Example: "COMMUTAIR One Two Three" for C5123
About the "COMMUTAIR" Callsign
When CommutAir pilots communicate with air traffic control, they identify themselves using the radio callsign "COMMUTAIR" followed by the flight number spoken in aviation pronunciation. For example, flight 456 would be "COMMUTAIR Four Five Six." Radio callsigns are assigned by ICAO and are distinct from the airline's marketing name.