• There is a "Washington Flyer" bus every 30 minutes. leaving from door 4 on the "ARRIVALS" level that goes to the West Falls Church Metrorail station. Then it's six stops to the Rosslyn Metro station from there. Total cost is about $10.
• There is a Metrobus, route 5A every 40 minutes, from the "GROUND TRANSPORTATION" level. Look for the Metrobus sign at "Curb 2E" in the shelter where hotel. parking, and rental car shuttles operate. It costs $3.10, and makes either 1 or 2 stops to Rosslyn, depending upon the run.
• Taxi fare is about $50 from Dulles.

Baltimore-Washington International is about 90 minutes away on public transportation, but we find that the least expensive air fares are often available from there.

• The Metrobus, route B30 operates every 40 minutes from the lower level of the international terminal to the Greenbelt Metrorail station. Take the Metro Green Line to L'Enfant Plaza and transfer to the Orange or Blue Line to go to Rosslyn. Total fare $7.25.
• Amtrak ($13 on local train) and MARC ($6 Mon-Fri) trains operate from the BWI rail station to Washington Union Station. Take a free BWI rail station shuttle from the airport Ground Transportation level to the station. At Union station, Take the Metro Red line to Metro Center, and change to a Blue or Orange line train to Rosslyn.
• Taxi fare is about $65 from BWI.