Seattle, WA to The Fashion Institute of Design & Merchandising-Los Angeles buses and trains from $79

Here are some trips other travelers have found on Routefriend.
$79
1d 2h
2 stops
Greyhound
$115
1d 11h
0 stops
Amtrak
$129
1d 13h
1 stop
Greyhound Amtrak
$139
1d 1h
2 stops
Amtrak Greyhound
$200
1d 10h
4 stops
Amtrak Greyhound
$207
2d 2h
4 stops
Greyhound Amtrak
$265
1d 8h
5 stops
Amtrak Greyhound