San Francisco, CA to San Luis Obispo, CA buses and trains from $39

Or, see buses and trains from San Luis Obispo, CA to San Francisco, CA.
Here are some trips other travelers have found on Routefriend.
$39
4h 45m
0 stops
Amtrak
$48
5h 28m
2 stops
BART Amtrak
$48
5h 43m
2 stops
BART Amtrak
$48
5h 49m
1 stop
BART Amtrak
$49
7h 19m
2 stops
BART Amtrak
$49
5h 33m
2 stops
BART Amtrak
$49
5h 48m
2 stops
BART Amtrak
$49
4h 45m
0 stops
Amtrak
$50
9h 31m
3 stops
BART Amtrak