Washington, DC to Cumberland, MD buses and trains from $26

Or, see buses and trains from Cumberland, MD to Washington, DC.
Here are some trips other travelers have found on Routefriend.
$26
3h 9m
0 stops
Amtrak
$213
12h 4m
2 stops
GotoBus Amtrak
$216
13h 4m
2 stops
Vamoose Amtrak
$?
16h 25m
2 stops
Amtrak Amtrak