As of 2015, Allegiant is the only airline offering commercial flights out of Phoenix-Mesa Gateway Airport. The airport is the former Williams Air Force Base that closed in 1993 and opened in 1994 as Williams Gateway Airport. Williams Gateway Airport took the name Phoenix-Mesa Gateway Airport in 2008.
Allegiant Airlines is an American airline offering commercial flights between small cities, as well as charter service. The U.S. Department of Transportation certifies Allegiant as a scheduled air carrier. Allegiant also offers charter service to destinations in Mexico and Canada. Allegiant charter service provides flights for Harrah’s casinos in Reno and Laughlin, Nevada. Its commercial flights offer an opportunity for customers living in colder climates to vacation in warmer cities.
Allegiant sells open seating tickets, but offers assigned seating at a premium cost. It also offers priority seating at a higher cost than the normal open seating option. The company assigns passengers a number for use in open seating, which is based on the time of the customer's flight check-in.
All Allegiant jets have only one cabin class configuration. The company files Boeing 757 planes that seat up to 217 passengers, McDonald Douglas 82 and 83 planes that seat up to 150 passengers, and McDonald Douglas 87 and 88 aircraft that seat up to 130 passengers. The McDonald Douglas planes use a two-by-three seat configuration.