There are
1,030 mi
from Huntsville, AL to Sioux Falls, SD
That's the driving distance. It would take 19 hours 5 mins to go from Huntsville, Alabama to Sioux Falls, South Dakota.
The flight distance (direct flight from Huntsville, AL to Sioux Falls, SD) is 814.29 mi.
1,030 mi = 1.61 kms