Ronald Reagan Washington National Airport more distant Washington Dulles International Airport. Reagan National has United States immigration and customs facilities only for business jet traffic; the only scheduled international flights allowed to land at the airport are those from airports with U.S. Customs and Border Protection preclearance facilities. Other international passenger flights must use Washington Dulles International Airport or Baltimore–Washington International Airport. The first airport in the Washington area with a major terminal was Arlington's Hoover Field, which opened its doors in 1926. Located near the present site of the Pentagon, the facility's single runway was crossed by a street; guards had to stop automobile
London City Airport Authority. London City Airport has a single long runway, and a CAA Public Use Aerodrome Licence (Number P728) that allows flights for the public transport of passengers or for flight training (but only for training necessary for the operation of aircraft at the airport). Only multi-engine, fixed-wing aircraft with special aircraft and aircrew certification to fly 5.5° approaches are allowed to conduct operations at London City Airport. The largest aircraft which can be used at the airport is the Airbus A220-100. London City served over 4.5 million passengers in 2017. It is the fifth-busiest airport in passengers and aircraft movements