Washington Dulles International Airport
By Taxi Cab: fare is approximately $60 to $65
Metro does NOT run to Dulles Airport or a nearby vicinity
Ronald Reagan National Airport
By Taxi Cab: Fare is approximately $20 to $24
: Blue Line to Rosslyn. Change to Orange Line. Take Orange Line train toward Vienna. Get off at the Ballston-MU stop. Look for Marymount Shuttle stop at the Ballston-MU Metro Station.
Here’s a helpful page filled with directions and maps