Allegiant Air LLC marketed as Allegiant Air is a currently operating North American scheduled low-cost airline company with its base at Harry Reid International Airport, in Las Vegas, United States.
This carrier's 2-char IATA designator is G4, and its 3-character ICAO designator is AAY. Established 27 years ago in 1997, the airline is one of the mature carriers.
Allegiant Air offers a web check-in option for the convenience of its passengers. The most recent version of Allegiant Air baggage policy (last updated 2024) is available on the airline's official website via the link in the menu on the left.
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