Phoenix Sky Harbor International Airport (IATA: PHX, ICAO: KPHX, FAA LID: PHX) is a civil-military public airport 3 miles (5 km) southeast of downtown Phoenix, in Maricopa County, Arizona, United States. It is Arizona's largest and busiest airport, and among the largest commercial airports in the United States.
In 2012, the airport served 40,448,932 passengers, making it one of the top 10 busiest in the United States by passenger count. It handles more than 1,200 aircraft operations a day, 100,000 passengers and more than 800 tons of cargo. Federal Aviation Administration (FAA) records show the airport had 20,169,926 commercial passenger boardings (enplanements) in calendar year 2012 and 20,211,799 in 2011.
The airport serves as a hub for American Airlines and is the airline's fifth-largest and primary western hub with 307 daily departures to more than 77 destinations in four countries. American carries 54% of all passengers through PHX, making it the airports largest carrier. Sky Harbor also serves as a hub for Great Lakes Airlines and is one of the largest focus cities for Southwest Airlines with 180 daily departures to 50 cities.