Howard University to Trinity College buses and trains from $50

Or, see buses and trains from Trinity College to Howard University.
Here are some trips other travelers have found on Routefriend.
$50
7h 36m
1 stop
BoltBus Amtrak
$63
6h 0m
0 stops
Amtrak
$79
5h 37m
1 stop
Amtrak Amtrak