Washington Dulles International Airport Rosslyn Metro station in Arlington and terminates at the L'Enfant Plaza Metro station in Southwest DC. Rosslyn can be accessed by the Orange, Blue, and Silver lines, while L'Enfant Plaza is also served by the Yellow and Green lines. Washington Flyer's Silver Line Express bus service operates roughly every 15–20 minutes between the airport and the Wiehle – Reston East Metro station. This service will be permanently discontinued when Phase II of the Silver Line opens in 2020. Passengers connecting to the Shenandoah Valley can use the Shenandoah Valley Commuter Bus, which connects to the Vienna and Rosslyn Metro stations.
London City Airport year could be absorbed by other airports which are currently under capacity. However, this plan was proposed when London City Airport was for sale. In February 2016 the airport was bought by a Canadian-led consortium, making redevelopment less likely. Additionally, the political weight behind air space in the south east would make it less likely still, with the government having approved the controversial expansion of Heathrow Airport, including the third runway. Owing to its proximity to London's Docklands and financial district its main users are business travellers, but the number of leisure destinations served (like Palma de Mallorca, Malaga or