Washington, DC to Barnard College buses and trains from $31

Or, see buses and trains from Barnard College to Washington, DC.
Here are some trips other travelers have found on Routefriend.
$31
4h 34m
1 stop
BoltBus Metro-North
$33
4h 25m
1 stop
GotoBus Metro-North
$33
4h 58m
1 stop
GotoBus Metro-North
$33
5h 9m
1 stop
GotoBus Metro-North
$38
5h 19m
1 stop
Vamoose Metro-North
$57
3h 6m
1 stop
Amtrak Metro-North
$73
4h 27m
1 stop
Amtrak Metro-North
$82
4h 16m
2 stops
Amtrak Metro-North
$98
4h 30m
1 stop
Amtrak Metro-North