Fresno Pacific University to The Art Institute of California-San Diego buses and trains from $53

Here are some trips other travelers have found on Routefriend.
$53
7h 19m
1 stop
Amtrak
$53
7h 31m
1 stop
Amtrak
$59
11h 19m
2 stops
Amtrak GotoBus
$60
7h 45m
2 stops
Amtrak GotoBus