"Paul Hamilton" wrote in message m...

Under the best of circumstances, BWI to Bethesda is an hour drive.
However, if it is not essential to visit Bethesda, BWI, with its ILS
approaches and good southbound departures, would be the better choice.

Dulles is also an option. You can get a coach to the West Falls Church
Metro. It's about 30 minutes (with light traffic) to drive it. I've made NIH
from my office (we're on the north end of the field) in about 20 minutes at
the dawn of crack in the morning.