How many miles sf - Seattle?

Answer 1

815 miles taking this route:

1. Take I-80 EAST, from San Francisco, to I-505 NORTH to REDDING at EXIT 56.
2. Take I-505 NORTH to I-5 NORTH.
3. Take I-5 NORTH to SEATTLE, via I-205 NORTH (EXIT 288 off I-5 in Oregon) to bypass Portland.