There are
1,560 mi
from Sioux City, IA to Auburn, WA
That's the driving distance. It would take 1 day 2 hours to go from Sioux City, Iowa to Auburn, Washington.
The flight distance (direct flight from Sioux City, IA to Auburn, WA) is 1,300.25 mi.
1,560 mi = 1.61 kms