Hartsfield–Jackson Atlanta International Airport now the airport's second largest carrier. In May 2001 construction of an over fifth runway (10–28) began. It was completed at a cost of $1.28 billion and opened on May 27, 2006. It bridges Interstate 285 (the Perimeter) on the airport's south side, making Hartsfield–Jackson the nation's only civil airport to have a runway above an interstate (although Runway 17R/35L at Stapleton International Airport in Denver, Colorado crossed Interstate 70 until that airport closed in 1995). The massive project, which involved putting fill dirt eleven stories high in some places, destroyed some surrounding neighborhoods and dramatically changed the scenery of
Pittsburgh International Airport British Airways, and Wow Air. After United Airlines shifted flights from Newark Liberty International Airport to Washington–Dulles at the Wilkes-Barre/Scranton International Airport, Pittsburgh became the last airport in Pennsylvania to have non-stop flights into EWR. Pittsburgh International Airport is the busiest airport in western Pennsylvania and the second-busiest airport in the state, after Philadelphia International Airport. In 2017 it served 8,988,016 passengers. The airport is encircled by I-376 and Business Loop 376, which is the main access for Airport Cargo and Servicing as well as other flight industries. It is owned by the county and operated by the Allegheny County