There are
1,152 mi
from Pomona, CA to Seatac, WA
That's the driving distance. It would take 21 hours 49 mins to go from Pomona, California to Seatac, Washington.
The flight distance (direct flight from Pomona, CA to Seatac, WA) is 955.70 mi.
1,152 mi = 1.61 kms