Phoenix Deer Valley Airport is a public airport north of Phoenix, in Maricopa County, Arizona. It is owned by the City of Phoenix. The FAA's National Plan of Integrated Airport Systems for 2009–2013 categorized it as a reliever airport for Phoenix Sky Harbor International Airport.In 2010 the airport recorded 368,747 aircraft movements, making it the 25th busiest airport in the world by aircraft movements and the busiest general aviation airport in the world.UsageThere is no scheduled airline, but charter service is available through several companies, including one charter airline, Westwind Air Service. Two large flight schools, Westwind School of Aeronautics and TransPac Aviation Academy, are located at Deer Valley.TransPac Aviation Academy has brought a number of international students to the school, including people from China, Vietnam and Colombia.Facilities and aircraftThe airport covers 914acre at an elevation of 1,478 feet (450 m). It has two asphalt runways: 7R/25L is 8,196 by 100 feet (2,498 x 30 m) and 7L/25R is 4,500 by 75 feet (1,372 x 23 m).