There are
449 mi
from Davenport, IA to Sioux Falls, SD
That's the driving distance. It would take 8 hours 6 mins to go from Davenport, Iowa to Sioux Falls, South Dakota.
The flight distance (direct flight from Davenport, IA to Sioux Falls, SD) is 341.60 mi.
449 mi = 723.03 kms