San Diego, CA to Simpson University buses and trains from $98

Or, see buses and trains from Simpson University to San Diego, CA.
Here are some trips other travelers have found on Routefriend.
$98
14h 49m
2 stops
Amtrak
$101
21h 1m
1 stop
Amtrak
$116
18h 6m
3 stops
GotoBus Amtrak