Ossining, NY to Columbia University in the City of New York buses and trains from $13

Here are some trips other travelers have found on Routefriend.
$13
0h 31m
0 stops
Metro-North
$25
0h 57m
1 stop
Amtrak Metro-North
$26
1h 10m
1 stop
Amtrak Metro-North
$40
3h 19m
1 stop
Amtrak Metro-North
$48
3h 31m
2 stops
Amtrak Metro-North
$52
3h 31m
2 stops
Amtrak Metro-North
$56
5h 34m
2 stops
Amtrak Metro-North
$69
5h 34m
2 stops
Amtrak Metro-North
$?
4h 40m
1 stop
Metro-North Metro-North