Auburn, NY to Princeton University buses and trains from $36

Or, see buses and trains from Princeton University to Auburn, NY.
Here are some trips other travelers have found on Routefriend.
$36
7h 0m
1 stop
GotoBus Megabus
$73
7h 19m
1 stop
Amtrak Megabus
$75
8h 24m
3 stops
Amtrak NJTransit
$78
7h 24m
2 stops
Amtrak NJTransit
$78
10h 28m
4 stops
Amtrak NJTransit
$83
8h 45m
3 stops
Amtrak NJTransit