DCA Ground Transportation | iFlyer Forum

I suggest you open www.ifly.com/dca and scroll down to "To get from Regan Airport to your destination".

What you need is to get to the MARC train station in Washington, which gets you close to the Baltimore Airport; a free shuttle connects to the Airport's terminal. I suggest you go to the information counter on arrival at DCA and ask how to get to the MARC train station. This is what I got for Reagan: The Metro station's yellow and blue lines are situated on an elevated outdoor platform covered by a canopy and connected to the concourse level of Terminal B/C. During Metro's non-operational hours on weekend mornings, you can take the Metrobus instead. The Airport is also near two Amtrak rail stations, both of which can be accessedby using the Metrorail system: (a) at Amtrak Union Station o Metrorail's Red Line; (b) at Amtrak Alexandria Station, which is adjacent to King Street Station on Metrorail's Blue & Yellow lines.

On arrival at DCA Airport your best bet is to take the Metro train: At DCA, the Metro station's yellow and blue lines are situated on an elevated outdoor platform covered by a canopy and connected to the concourse level of Terminal B/C. Dunn Looring is served by the Metro's orange line. (open http://www.wmata.com/rail/station_detail.cfm?station_id=102) - find out at the Information desk in the Arrivals area of the terminal where to transfer to the orange line.

At DCA, the Metro station's yellow & blue lines are situated on an elevated outdoor platform covered by a canopy and connected to the concourse level of Terminal B/C. During Metro's non-operational hours on weekend mornings, you can take the Metrobus instead. On arrival, pass by at the information counter near the baggage claim area to get directions.

While DCA is closer to the business distrct of Washington, Dulles Airport is 26 miles away. However, the Metrorail System is adjacent to DCA's Terminal B/C, and you can take the Metrorail to the West Falls Church Metro Station, where the 'Washington Flyer bus' leaves every 30 minutes for IAD Dulles Airport. As to United, you would have to contact the airline directly.