Gettysburg, PA to Newbury College-Brookline buses and trains from $86

Or, see buses and trains from Newbury College-Brookline to Gettysburg, PA.
Here are some trips other travelers have found on Routefriend.
$86
7h 10m
1 stop
Amtrak
$160
11h 43m
2 stops
Amtrak Amtrak