The airport's master plan was redesigned in 1959 to eliminate the cross runway to make room for new terminals.when the "East" and "West" names were dropped, since they were no longer the only two terminals.US Airways moved its headquarters to the AWA campus in Tempe and retained many AWA managers to run the merged company.Sky Harbor's private airplane area is also one of eight service centers for the Medevac airline Air Evac.In 1994 the N4 International Concourse was opened, adding 10 gates and a sterile walkway to the S4 concourse.
AWA ended its relationship with Continental and merged with US Airways in 2005.
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.
Southwest opened a maintenance facility at PHX in 1992 which was its largest.
with four concourses: N2 and N3 on the north side and S3 and S4 on the south side.