Burlington, NC to Catholic University of America buses and trains from $41

Here are some trips other travelers have found on Routefriend.
$41
10h 34m
1 stop
Amtrak Megabus
$53
7h 36m
0 stops
Amtrak
$63
9h 58m
1 stop
Amtrak GotoBus
$73
10h 39m
2 stops
Amtrak Megabus
$83
18h 34m
2 stops
Amtrak Megabus
$86
10h 39m
1 stop
Amtrak Megabus