Allegiant Air (usually shortened to Allegiant and stylized as allegiant) is an American low-cost airline that operates scheduled and charter flights. As a major air carrier, it is the ninth-largest commercial airline in the US. It is wholly owned by Allegiant Travel Company. The corporate headquarters are in Summerlin, Nevada, a suburb of Las Vegas.
As of April 2025, Allegiant Air operates the following aircraft: Airbus A319, Airbus A320, Boeing 737.
Allegiant Air is operating flights from/to 133 airports in 1 countries: United States.