[amtrak-official]

How to get from Chicago into San Francisco in 13 easy steps

1. Take the Blue Line to Chicago Union Station
2. Board the Empire Builder
3. Transfer in Seattle to the Coast Starlight
4. Ride till you hit Oakland
5. Take the Bart Orange and Green Lines to the Milpitas Station
6. Transfer onto the VTA Orange Line
7. Ride till you hit Baypointe station and transfer to the Blue line
8. Ride till you hit the Convention Center station and transfer to the Green Line
9. Go till you hit San Jose Diridon Station and transfer to Caltrain
10. When you hit the Milbrae station transfer to the Bart Yellow Line
11. Get off in Daly City and Transfer to the Blue Line
12. Wait till you hit the Embarcadero Station and
13. Done! <3

[amtrak-official]

Some maps to help you

[amtrak-official]

@desoax you are right, I could have added more steps by adding a transfer in New York

[amtrak-official]

@herpderpingest here is the Chicago Guide

0. a) Take the Red Line North to Roosevelt

0. b) Transfer to the Green line and ride till Clark/Lake

0. c) Transfer onto the Blue Line and ride till Clinton