There are
734 mi
from Ukiah, CA to Tukwila, WA
That's the driving distance. It would take 15 hours 8 mins to go from Ukiah, California to Tukwila, Washington.
The flight distance (direct flight from Ukiah, CA to Tukwila, WA) is 577.07 mi.
734 mi = 1,180.85 kms