The Metropolitan is 17 miles from DC’s Glenmont Station on the Red Line, 19 miles from Baltimore’s BWI Light Rail station on the Blue Line, and 9 miles from the Savage MARC train station.
Trains run 5 am to 11:25 pm during the weekdays and three hours later Friday and Saturday nights.
Check out WMATA’s website and the website for the Marc train’s Camden-Washington line for fares, schedules, and more information. Information on the light rail is available here.