There are
1,115 mi
from Kalispell, MT to Sioux Falls, SD
That's the driving distance. It would take 19 hours 12 mins to go from Kalispell, Montana to Sioux Falls, South Dakota.
The flight distance (direct flight from Kalispell, MT to Sioux Falls, SD) is 903.69 mi.
1,115 mi = 1,794.12 kms