G4 Airline Code, Allegiant Air
G4 is the IATA airline code for Allegiant Air based in United States. The airline also has the 3-letter ICAO code AAY, and its radio callsign is "Allegiant". The open dataset lists 378 scheduled routes for the carrier, placing it at number 41 among airlines worldwide. You will see G4 as the two-character prefix on its flight numbers, for example G4123.
What is the Allegiant Air airline code?
The IATA airline code for Allegiant Air is G4. This two-character code prefixes the airline's flight numbers and appears on tickets and schedules. The three-letter ICAO code AAY is used in flight plans and air traffic control.
IATA airline codes are two characters and can reuse letters over time, so a retired airline's code may later be assigned to another carrier. ICAO codes are three letters and are more stable, which is why flight plans use them.
Frequently asked questions
What is the airline code for Allegiant Air?
The IATA airline code for Allegiant Air is G4. Its ICAO code is AAY.
What is the abbreviation for Allegiant Air?
The two-character IATA abbreviation for Allegiant Air is G4, and its three-letter ICAO code is AAY.
What airline is G4?
G4 is the IATA code for Allegiant Air, based in United States.
What is the ICAO code for Allegiant Air?
Allegiant Air uses the ICAO airline code AAY and the radio callsign "Allegiant".
What country is Allegiant Air based in?
Allegiant Air (G4) is based in United States.
What is the radio callsign for Allegiant Air?
Air traffic control refers to Allegiant Air by the radio callsign "Allegiant".
Routes flown by Allegiant Air
Some of the busiest routes Allegiant Air (G4) appears on in the open route dataset, with distance and typical flight time: