There are
1,164 mi
from Irvine, CA to Seatac, WA
That's the driving distance. It would take 22 hours 4 mins to go from Irvine, California to Seatac, Washington.
The flight distance (direct flight from Irvine, CA to Seatac, WA) is 980.17 mi.
1,164 mi = 1.61 kms