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Allegiant Air Airline Profile

Allegiant Air information, codes and useful links

Allegiant Air logo
Allegiant Air profile
Allegiant Air logo with name
Overview

Marketing name: Allegiant Air

Legal name: Allegiant Air LLC

Year established: 1997

Region: North America

Base country: United States

Base city: Las Vegas

Base airport: Harry Reid International Airport

Details

Airline IATA code: G4

Airline ICAO code: AAY

Base city IATA code: LAS

Base airport IATA code: LAS

Airline category: Scheduled

Airline type: Low-cost carrier

Alliance: —

Operating status: Active

Useful links

Official Website: allegiantair.com

Baggage policy: visit website

Online check-in: visit website

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Allegiant Air overview and services

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 28 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 2025) is available on the airline's official website via the link in the menu on the left.