American University to Long Island University-Brooklyn buses and trains from $13

Here are some trips other travelers have found on Routefriend.
$13
6h 15m
1 stop
Megabus GotoBus
$14
6h 15m
1 stop
Megabus GotoBus
$15
4h 0m
0 stops
BoltBus
$22
4h 0m
0 stops
GotoBus
$22
6h 30m
1 stop
Megabus BoltBus
$48
4h 0m
1 stop
Amtrak BoltBus
$48
4h 34m
1 stop
Amtrak GotoBus
$49
4h 49m
1 stop
Amtrak GotoBus
$56
4h 0m
1 stop
Amtrak GotoBus