There are
889 mi
from Sioux Falls, SD to Radcliff, KY
That's the driving distance. It would take 16 hours 18 mins to go from Sioux Falls, South Dakota to Radcliff, Kentucky.
The flight distance (direct flight from Sioux Falls, SD to Radcliff, KY) is 686.73 mi.
889 mi = 1,430.43 kms