From Washington National Airport

1. Go north on George Washington Parkway to I-395 (2.1 miles)
2. Go south on I-395 to the intersection with the beltway, where I-395 becomes I-95 south (9.6 miles)
3. Go south on I-95 until exit 150A (12 miles)

From Dulles Airport

1. Go east on Dulles Access road (tolls) to Leesburg Pike (13.3 miles)
2. Go east On Leesburg Pike to I-495 (26.6 miles)
3. Go south on I-495 to I-95 (9.8 miles)
4. Go south on I-95 until exit 150A (12 miles)

From Baltimore/Washington Airport

1. Go south on I-395 to I-95 (1.1 miles)
2. Go south on I-95 to I-495 (26.6 miles)
3. Go west on I-495 to Virginia (16 miles)
4. Go south on I-495 to I-95 (14.1 miles)
5. Go south on I-95 until exit 150A (12 miles)