Online: amtrak.com 
Amtrak trains provide service to the BWI Marshall Rail Station, where free shuttles serve the airport terminal. Shuttle stops are located on the lower level terminal roadway in between door numbers 1 & 2, 8 & 9, 14 & 15, and 17 & 18. Shuttle buses from the BWI Marshall terminal building to the rail station operate every 12 min from 5:00am to 1:00am daily and every 25 min between 1:00am and 5:00am daily. Buses stop adjacent to the rail station garage, directly in front of the rail station. The BWI Rail Station is located one mile from the terminal building. To contact the BWI Marshall Rail Station, please call 410-672-6169.
For Amtrak schedules and information call 800-USA-RAIL (800-872-7245) or go to www.amtrak.com .
From Washington, DC
Board the Amtrak Train to BWI from Washington's Union Station. To contact Amtrak Passenger Services at Union Station, please call 202-906-3260.
From Philadelphia, PA
Board the Amtrak Train in Philadelphia, PA on 30th and Market Streets. To contact the Philadelphia 30th Street Train Station, please call 215-349-2270.
From Wilmington, DE
Board the Amtrak Train in Wilmington, DE located at M. L. King Blvd and French Street.
From Alexandria, VA
Board the Amtrak Train in Alexandria, VA located at 110 Callahan Drive.