Antonio B. Won Pat International Airport

Antonio B. Won Pat International Airport (IATA code: GUM, ICAO code: PGUM), also known as Guam International Airport, is an airport located in Tamuning and Barrigada, 3 miles (4.8 kilometers) 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. Operated by the A.B. Won Pat International Airport Authority, Guam (GIAA), it is also the home of the former Naval Air Station Agana, and is the only international airport in the territory.

Covering an area of 1,657 acres (6.71 square kilometers), the airport has two terminals: the current passenger terminal and the old terminal. The current passenger terminal has three levels. The basement level houses arrival facilities, including customs and baggage claim. The basement also houses the GIAA Airport Police and GIAA Arcade offices and the Hafa Adai Gardens. The apron level (the departure level) houses the ticketing counters. The third floor houses the departure gates, immigration facilities, and GIAA administrative offices. The old terminal served as the corporate headquarters of Continental Micronesia until late 2010. The airport’s cargo facilities are located between the main terminal and the commuter terminal.

In financial year 2019, this airport saw more than 1.88 million enplanements and 3.6 million passenger movements.