North Carolina State University at Raleigh to The Art Institute of Atlanta buses and trains from $39

Here are some trips other travelers have found on Routefriend.
$39
12h 13m
1 stop
Amtrak Megabus
$56
9h 34m
1 stop
Amtrak Megabus
$68
20h 19m
1 stop
Amtrak Megabus
$80
15h 22m
1 stop
Amtrak
$85
20h 19m
2 stops
Amtrak Megabus
$128
1d 0h
1 stop
Amtrak Megabus