There are
1,764 mi
from Des Moines, IA to Seatac, WA
That's the driving distance. It would take 1 day 6 hours to go from Des Moines, Iowa to Seatac, Washington.
The flight distance (direct flight from Des Moines, IA to Seatac, WA) is 1,461.63 mi.
1,764 mi = 1.61 kms