Richmond, VA to Columbia, SC buses and trains from $5

Or, see buses and trains from Columbia, SC to Richmond, VA.
Here are some trips other travelers have found on Routefriend.
8h 34m
0 stops
16h 25m
2 stops
Amtrak Megabus
15h 15m
1 stop
12h 34m
2 stops
Megabus Amtrak