A short drive, Southeast from Phoenix. It is on the site of the former Williams Air Force Base. It officially opened for business in 1994.
Numerous improvements are currently under way.
The airport does not yet have commercial airliner traffic, however interesting aircraft can be seen on occasion. The airport is used mainly for flight testing and some maintenance by several businesses, as well as flight training by several airlines. Increasingly, cargo aircraft can be seen at Gateway, with the auto industry shipping automotive parts from here in particular. On occasion, some other interesting aircraft may be seen here as well. Also, Native American Air Ambulance maintains a base here on the airport.