Calvin College to Purdue University buses and trains from $67

Or, see buses and trains from Purdue University to Calvin College.
Here are some trips other travelers have found on Routefriend.
$67
7h 49m
1 stop
Greyhound
$72
14h 19m
1 stop
Amtrak
$?
10h 42m
2 stops
Amtrak Greyhound