There are
1,601 mi
from Sioux City, IA to Olympia, WA
That's the driving distance. It would take 1 day 3 hours to go from Sioux City, Iowa to Olympia, Washington.
The flight distance (direct flight from Sioux City, IA to Olympia, WA) is 1,330.27 mi.
1,601 mi = 1.61 kms