There are
674 mi
from Fremont, CA to Washougal, WA
That's the driving distance. It would take 13 hours 3 mins to go from Fremont, California to Washougal, Washington.
The flight distance (direct flight from Fremont, CA to Washougal, WA) is 555.43 mi.
674 mi = 1,085.39 kms