Super Shuttle, 1-800-258-3826, offers commercial van service from Baltimore-Washington International, Dulles International, and Ronald Reagan Washington National airports to the Gaithersburg area. Call for reservations.
The Washington Metro system has subway service to Gaithersburg and can be boarded at Ronald Reagan Washington National Airport. Take the Yellow Line train marked "Mount Vernon Square" to Gallery Place and transfer to the Red Line train marked "Shady Grove" to the Shady Grove station in Gaithersburg. Service is every six to fifteen minutes, depending on the time of day. Travel time from Ronald Reagan Washington to Shady Grove is approximately 50 minutes. Taxis are available from the Shady Grove Metro station to area hotels.
To reach the Gaithersburg Marriott Washingtonian: