Originally Posted by lisadiamond
I need suggestions how to get from DCA to IAD and have about 3 hours to do so with only carry-on luggage. Would prefer public transportation if practical. Thanks in advance.
There is limited public transport. You can take the subway to the end of the line, west falls church I think, and take a metrobus from there. I would just bite the bullet and take a cab - it's about $40.