There are
1,624 mi
from Sioux City, IA to Centralia, WA
That's the driving distance. It would take 1 day 4 hours to go from Sioux City, Iowa to Centralia, Washington.
The flight distance (direct flight from Sioux City, IA to Centralia, WA) is 1,331.44 mi.
1,624 mi = 1.61 kms