Phoenix Sky Harbor International Airport (IATA: PHX, ICAO: KPHX) is a public airport located three miles (4.8 km) east of the central business district of Phoenix, a city in Maricopa County, Arizona, USA. It is Arizona's main international airport and one of the largest aviation facilities in the American Southwest.

Sky Harbor has been operating under its unique name since prior to 1935, when it was purchased by the City of Phoenix. In the 1950s it was serviced by four airline companies. Today, it serves as a hub for US Airways, and Dallas-based Southwest Airlines has a large, hub-like focus city operation.

Phoenix Sky Harbor International Airport (IATA: PHX, ICAO: KPHX), which is centrally located in the metro area near the intersections of I-10, I-17, US 60, and State Routes 51, Loop 101, and Loop 202. Sky Harbor is the fifth-busiest airport in the U.S. and the world for passenger traffic for takeoffs and landings, handling more than 36 million travelers in 2000[citation needed]. The airport serves more than 100 cities with non-stop flights. British Airways, Air Canada and Aeromexico are among several international carriers providing flights to destinations such as London, Toronto, Costa Rica and Mexico.