There are
732 mi
from Ukiah, CA to Seatac, WA
That's the driving distance. It would take 15 hours 7 mins to go from Ukiah, California to Seatac, Washington.
The flight distance (direct flight from Ukiah, CA to Seatac, WA) is 575.43 mi.
732 mi = 1,177.81 kms