The Baltimore-Washington International Airport (BWI) is near the BWI Amtrak Station. A free shuttle is available between the two that operates 24 hours/day. The shuttle picks up passengers outside each designated airline check-in counter. Travel time is about 10 minutes.
Once at the Amtrak station, you can connect with Northeast Regional, Acela Express, Vermonter and Palmetto Amtrak trains that travel up and down the East Coast. Or, board a MARC commuter train to D.C. or downtown Baltimore. If you’re traveling cross country, Washington D.C. Union Station and Penn Station in New York City are major Amtrak transfer locations.