Stapleton International Airport Plaza (Denver's tallest at 714′). Due to Stapleton's location east of downtown, the Federal Aviation Administration imposed a building height restriction of 700'-715' (depending on where the building was). This allowed an unimpeded glide slope for runways (8L/26R) and (8R/26L). The height restriction was lifted in 1995, well after the city's skyscrapers had been erected. By the 1980s, plans were under way to replace Stapleton with a new airport. Stapleton was plagued with a number of problems, including: The Colorado General Assembly brokered a deal in 1985 to annex a plot of land in Adams County into the city 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