Gettysburg, PA to Laboratory Institute of Merchandising buses and trains from $44

Here are some trips other travelers have found on Routefriend.
$44
6h 25m
1 stop
Amtrak Megabus
$48
4h 25m
1 stop
Amtrak Megabus
$56
3h 4m
0 stops
Amtrak
$58
4h 58m
1 stop
Amtrak NJTransit
$58
5h 19m
1 stop
Amtrak NJTransit
$59
3h 55m
2 stops
Amtrak NJTransit
$60
4h 15m
1 stop
Amtrak NJTransit
$61
3h 19m
1 stop
Amtrak NJTransit
$66
6h 9m
2 stops
Amtrak Metro-North
$73
4h 10m
2 stops
Amtrak NJTransit
$75
3h 55m
2 stops
Amtrak CoachUSA