There are
363 mi
from Davenport, IA to Sioux City, IA
That's the driving distance. It would take 6 hours 42 mins to go from Davenport, Iowa to Sioux City, Iowa.
The flight distance (direct flight from Davenport, IA to Sioux City, IA) is 306.37 mi.
363 mi = 584.75 kms