Antonio B. Won Pat International Airport (IATA: GUM, ICAO: PGUM), also known as Guam International Airport, is an international airport located in Tamuning and Barrigada, three miles (4.8 km) east of the capital city of Hagåtña (formerly Agana) in the United States territory of Guam. The airport is a hub for Asia Pacific Airlines and for United Airlines, serving as the latter's Pacific Ocean hub. It is also the home of the former Naval Air Station Agana, and is the only international airport in the territory. The airport is named after Antonio Borja Won Pat, the first delegate from Guam to the United States House of Representatives, and is operated by the A.B. Won Pat International Airport Authority, Guam (GIAA, Chamorro: Aturidat Puetton Batkon Airen Guahan Entenasionat), an agency of the Government of Guam.