There are
1,563 mi
from Sioux City, IA to Tukwila, WA
That's the driving distance. It would take 1 day 2 hours to go from Sioux City, Iowa to Tukwila, Washington.
The flight distance (direct flight from Sioux City, IA to Tukwila, WA) is 1,302.89 mi.
1,563 mi = 1.61 kms