Phoenix Sky Harbor International Airport (IATA: PHX, ICAO: KPHX) 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. PHX covers 3,400 acres (1,376 ha) and has three parallel runways.
In 2016, PHX served 43,383,528 passengers, making it the thirty-fourth busiest airport in the world. It handles more than 1,200 aircraft operations a day, 110,000 passengers and more than 800 tons of cargo. Federal Aviation Administration (FAA) records show that the airport had 20,169,926 commercial passenger boardings (enplanements) in calendar year 2012 and 20,211,799 in 2011.
The airport serves as the sixth-largest hub for American Airlines with 299 daily departures to 91 destinations in 4 countries. American carries nearly 48% of all passengers through PHX as of October 2016 (23 million passengers) and employs nearly 10,000 colleagues, making it the airport's largest carrier. Sky Harbor also serves as one of the largest focus cities for Southwest Airlines with 179 daily departures to 50 cities across the United States.