Antonio B. Won Pat International Airport (IATA: GUM, ICAO: PGUM), also known as Guam International Airport, is an 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.