California State University-East Bay to Oakland, CA buses and trains from $3

Here are some trips other travelers have found on Routefriend.
$3
0h 22m
0 stops
BART
$10
0h 28m
1 stop
BART Amtrak
$10
0h 16m
0 stops
Amtrak
$10
0h 52m
1 stop
BART Amtrak
$11
0h 30m
1 stop
Amtrak BART
$12
1h 7m
1 stop
BART Amtrak
$13
1h 22m
1 stop
BART Amtrak
$14
0h 42m
1 stop
Amtrak BART
$14
1h 1m
2 stops
Amtrak BART
$16
1h 16m
1 stop
Amtrak BART
$32
4h 40m
3 stops
BART Amtrak