American University to State College, PA buses and trains from $46

Or, see buses and trains from State College, PA to American University.
Here are some trips other travelers have found on Routefriend.
11h 4m
1 stop
Vamoose GotoBus
10h 34m
1 stop
GotoBus GotoBus
8h 15m
1 stop
Amtrak GotoBus