There are
681 mi
from Sioux City, IA to Kennett, MO
That's the driving distance. It would take 13 hours 19 mins to go from Sioux City, Iowa to Kennett, Missouri.
The flight distance (direct flight from Sioux City, IA to Kennett, MO) is 549.33 mi.
681 mi = 1,096.65 kms