of which are Carnegie Mellon University, the University of Pittsburgh, and Duquesne University. Also in the city are Carlow University, Chatham University, Point Park University, the Community College of Allegheny County, Pittsburgh Theological Seminary, Reformed Presbyterian Theological Seminary, and the Pittsburgh Institute of Mortuary Science. Within the greater metropolitan area, universities include Clarion University of Pennsylvania, La Roche University, Slippery Rock University, Westminster College and Grove City College north of the city, Robert Morris University and Geneva College west of the city, Washington & Jefferson College, Pennsylvania Western University and Waynesburg University to the south, and Seton Hill University, Saint Vincent College, and Indiana University of Pennsylvania to the east. Transportation Airports Pittsburgh International Airport is located to the west of downtown Pittsburgh in Findlay. The smaller but less crowded Arnold Palmer Regional Airport to the east of downtown in Latrobe provide commercial service to the metro area. Pittsburgh International was the fortress hub of US Airways from 1952 to 2005 with over 500 daily departures to more than 110 destinations in 2000. By 2007, fewer than 70 departures to 21 destinations remained. In 2007, US Airways did select the airport for its new $25 million, 27,000 sq ft (2,500 m2), 600-employees-strong Global Flight Operations Center. Since being de-hubbed the airport has seen expanded service from JetBlue, Southwest Airlines and Delta Air Lines' direct trans-Atlantic service to Paris. Arnold Palmer Regional Airport offers commercial service via Spirit Airlines to the Carolinas, Florida and Texas. Palmer has had commercially scheduled air service since the 1980s. Allegheny County Airport in suburban West Mifflin, Pennsylvania, is the area's largest general aviation airport. The historic landmark, art deco terminal was the main passenger airport for the area until 1952. Allegheny opened in 1931 as the nation's third-largest and first with "hard surface" runways. Smaller suburban airports serve as private plane and corporate jet bases include: North Metro: Butler County Airport Zelienople Municipal Airport Rock Airport New Castle Municipal Airport Lakehill Airport South Metro: Allegheny County Airport Rostraver Airport Joseph A. Hardy Connellsville Airport Washington County Airport East Metro: Pittsburgh-Monroeville Airport Greensburg Jeannette Regional Airport Indiana County-Jimmy Stewart Airport Arnold Palmer Regional Airport West Metro: Beaver County Airport Eddie Dew Memorial Airpark (Ohio) Jefferson County Airpark (Ohio) Herron Airport (West Virginia) Wheeling Airport (West Virginia) Interstates The Pittsburgh area is served by four main-line Interstates including the Pennsylvania Turnpike (which is co-signed with I-76 and