Philadelphia International Airport (IATA: PHL, ICAO: KPHL, FAA LID: PHL) is the primary airport serving Philadelphia, Pennsylvania. The airport served 19.6 million passengers annually in 2021, making it the 21st busiest airport in the United States. The airport is located 7 miles (11 km) from the city's downtown area and has 22 airlines that offer nearly 500 daily departures to more than 130 destinations worldwide.