There are
1,346 mi
from Norwalk, CT to Sioux City, IA
That's the driving distance. It would take 1 day to go from Norwalk, Connecticut to Sioux City, Iowa.
The flight distance (direct flight from Norwalk, CT to Sioux City, IA) is 1,184.32 mi.
1,346 mi = 1.61 kms