Frankfort, IN to Governors State University buses and trains from $43

Here are some trips other travelers have found on Routefriend.
$43
10h 13m
1 stop
Amtrak
$103
14h 9m
4 stops
Greyhound Amtrak
$143
14h 9m
3 stops
Greyhound Amtrak
$176
2d 14h
7 stops
Greyhound Amtrak