Ground transportation

Roads

Dulles is accessible via the Dulles Access Road/Dulles Greenway (State Route 267) and State Route 28. The Dulles Airport Access Highway (DAAH) is a toll-free, limited access, highway owned by the Metropolitan Washington Airports Authority (MWAA) to facilitate car access to Dulles from the Washington Capital Beltway and Interstate 66. After it opened, non-airport traffic between Washington and Reston became so heavy that a parallel set of toll lanes were added on the same right-of-way to accommodate non-airport traffic (Dulles Toll Road). However, the airport-only lanes are both less congested as well as toll-free. As of November 1, 2008, MWAA assumed responsibility from the Virginia Department of Transportation both for operating the Dulles Toll Road and for the construction of a rapid transit rail line down its median. Route 28, which runs north–south along the eastern edge of the airport, has been upgraded to a limited access highway, with the interchanges financed through a property tax surcharge on nearby business properties. The Dulles Toll Road has been extended to the west to Leesburg as the Dulles Greenway.

Mass transportation

Loudoun County Transit provides a bus service which runs from the Dulles Town Center shopping center, to the airport, then to the Steven F. Udvar-Hazy Center Air and Space Museum.

Passengers connecting to the Shenandoah Valley can use the Shenandoah Valley Commuter Bus, which connects to the Vienna and Rosslyn Metro station. Taxis and SuperShuttle ride sharing vans are also available.

Fairfax Connector service to Dulles is through via route 981; from Tysons Corner to Reston then to Herndon.

As of 2012, the only Washington Metropolitan Area Transit Authority service to Dulles is the "Express" 5A Metrobus route. The 5A express bus makes two stops on its way from the airport to downtown Washington. Stops include the Herndon–Monroe park & ride lot in Herndon and the Rosslyn Metro station in Arlington. It terminates at the L'Enfant Plaza Metro station in Southwest DC. Both metro stations can be accessed by the Orange and Blue lines, while the latter can also be accessed by the Yellow and Green lines. The 950 Fairfax Connector bus brings passengers from Reston to the Herndon–Monroe transfer station, where they can switch to the 5A bus to the airport. The RIBS 2 Fairfax Connector bus also connects Reston passengers to the Herndon–Monroe transfer point. An alternative (but slightly more expensive) way of reaching Dulles is the Washington Flyer Coach bus service that operates roughly every thirty minutes between the airport and the West Falls Church Metro station.

Planned

Construction is now underway to connect the airport to Washington via the Silver Line of the Washington Metro. Initial plans called for completion of the station in 2016, however officials now expect to complete construction in 2018.