There are
993 mi
from Fullerton, CA to Milwaukie, OR
That's the driving distance. It would take 18 hours 42 mins to go from Fullerton, California to Milwaukie, Oregon.
The flight distance (direct flight from Fullerton, CA to Milwaukie, OR) is 837.80 mi.
993 mi = 1,597.33 kms