American University to Philadelphia, PA buses and trains from $24

Or, see buses and trains from Philadelphia, PA to American University.
Here are some trips other travelers have found on Routefriend.
$24
3h 57m
1 stop
Megabus Amtrak
$38
1h 28m
0 stops
Amtrak
$38
7h 0m
1 stop
GotoBus GotoBus
$43
11h 36m
2 stops
GotoBus NJTransit
$46
4h 52m
2 stops
Amtrak NJTransit
$48
4h 52m
2 stops
Amtrak NJTransit
$51
4h 52m
2 stops
Amtrak NJTransit
$66
6h 12m
2 stops
Amtrak NJTransit
$80
6h 6m
1 stop
GotoBus Amtrak