what airport is closest to american university
TRAIN TO WASHINGTON DC METRORAIL: A free bus runs from the BWI airport to the BWI Rail Station. To get to American University, take the train from the BWI Rail Station to Union Station in Washington DC, then transfer to the metrorail train and take a red line metrorail train to Tenleytown - American University.
Washington Flyer Coach provides bus service from Dulles Airport to the West Falls Church metro station. From the West Falls Church station take the metrorail train to the Tenleytown-American University station, then take American University bus from the metro station to campus (see below for detailed directions).