Philadelphia International Airport , often referred to just by its IATA code PHL, is a major airport in Philadelphia, Pennsylvania, United States, and is the largest airport in the Delaware Valley region and in the state. The airport is a major international hub for American Airlines and a regional cargo hub for UPS Airlines. The airport has service to destinations in the United States, Canada, the Caribbean, Latin America, Europe and the Middle East. Most of the airport property is located in Philadelphia proper. The international terminal and the western end of the airfield are located in Tinicum Township, Delaware County.