Board buses on the second curb after exiting down the ramp from Baggage Claim
- Fairfax Connector Bus Route 981 and Route 983
Local bus with stops at the Smithsonian Udvar-Hazy Air & Space Museum. Route 983 serves the museum and operates only during museum hours. Route 981 operates outside of museum hours. Both routes serve locations in Reston, including the Wiehle-Reston East Metrorail Station. Buses are available at curb 2E.
- Metrobus Route 5A
Bus to Rosslyn VA and L'Enfant Plaza in Washington, D.C. includes a stop enroute at the Herndon-Monroe Park and Ride Garage. Buses are available at curb 2E.
- Virginia Breeze
An intercity bus service connecting Blacksburg, Virginia with Union Station in Washington, D.C. Daily route will include several stops in the New River Valley, Shenandoah Valley, and Northern Virginia, including Dulles International Airport. Beginning May 10, 2019, buses located at curb 2A.
Bus service connecting Charlottesville, Virginia with Dulles Airport and Union Station in Washington, DC. Buses are available at Curb 2A.