Phoenix Sky Harbor International Airport (IATA: PHX, ICAO: KPHX, FAA LID: PHX) is located in Phoenix, Maricopa County, Arizona and is the largest and busiest airport in the state of Arizona, followed by Tucson International Airport.

Overview:
Phoenix Sky Harbor International Airport is a joint civil-military public airport located 3 miles (4.8 km) southeast of the central business district of the city of Phoenix, in Maricopa County, Arizona, United States. It is Arizona's main international airport and the largest commercial airport in the American Southwest.
Sky Harbor has been operating under its current name since prior to 1935, when it was purchased by the city of Phoenix. In the 1950s it was served by American Airlines, Bonanza Air Lines, the original Frontier Airlines and Trans World Airlines; a couple of American's flights were "interchange" flights that continued on Delta routes beyond Dallas, or on Continental routes beyond El Paso. The April 1957 OAG shows 16 scheduled weekday departures on American, 11 TWA, 10 Bonanza and 5 Frontier.
Today, the airport is the primary regional hub and Mexico gateway for Tempe-based US Airways (the airport's largest operator), the third largest hub for domestic commuter, Great Lakes Airlines and is also the third-largest focus city for Southwest Airlines (the airport's second largest operator). Since beginning service in 1982, Southwest Airlines has grown to capture more than 34% of the market share. Since 1990, Southwest Airlines traffic from Phoenix has increased more than 352%.
Both US Airways and Southwest Airlines currently operate out of Sky Harbor's Terminal 4, which handles about 80% of the traffic through the airport.
British Airways provides the airport's only nonstop service outside of North America to London-Heathrow. US Airways and Hawaiian Airlines offer non-stop service outside the Continental United States to Hawaii. US Airways and Aeroméxico Connect offer non-stop service to cities in Mexico and US Airways, Air Canada, and WestJet offer non-stop service to parts of Canada, while US Airways alone, offers non-stop service to parts of Alaska and Central America. US Airways is expected to begin nonstop service between Phoenix and Tokyo-Narita in the first quarter of 2012 utilizing an Airbus A330-200 series aircraft, which, if launched, would be the first nonstop route between Phoenix and Asia, but second proposed route to Asia; as back in 1989, America West Airlines offered a nonstop route to Nagoya using one of their few Boeing 747's, but was denied Government Approval due to the submission of Chapter 11 bankruptcy by the airline, which cancelled all Hawaiian and Asian routes for the airline. America West instead, offered one-stop service to Tokyo-Narita via Honolulu after they recovered from bankruptcy.
Federal Aviation Administration (FAA) records show the airport had 20,315,544 commercial passenger boardings (enplanements) in calendar year 2005 and 20,591,906 enplanements in 2006.
In 2008, the airport served 39,891,193 passengers, making it the ninth busiest in the United States, in terms of passengers, today the airport is recorded as the ninth busiest in the United States and one of the top 15 busiest airports in the world with a 90 million dollar daily economic impact. On a daily basis the airport handles about 1,486 aircraft that arrive and depart, along with 108,887 passengers daily, and more than 600 tons of cargo handled.
Because of Phoenix's consistent wind patterns, Sky Harbor is one of the largest airports in the world to have all runways running parallel (in the east-west direction).
Sky Harbor's private airplane area also serves as one of eight service centers for the Medevac airline Air Evac