There are
389 mi
from Sioux City, IA to Fitchburg, WI
That's the driving distance. It would take 7 hours 45 mins to go from Sioux City, Iowa to Fitchburg, Wisconsin.
The flight distance (direct flight from Sioux City, IA to Fitchburg, WI) is 355.54 mi.
389 mi = 626.02 kms