Amsterdam, NY to New York University buses and trains from $45

Or, see buses and trains from New York University to Amsterdam, NY.
Here are some trips other travelers have found on Routefriend.
$45
3h 37m
0 stops
Amtrak
$55
3h 57m
1 stop
Amtrak Metro-North
$58
4h 31m
1 stop
Amtrak Metro-North
$58
6h 52m
2 stops
Amtrak NJTransit
$70
6h 58m
2 stops
Amtrak Metro-North