There are
1,423 mi
from Sioux Falls, SD to Milford, CT
That's the driving distance. It would take 1 day 2 hours to go from Sioux Falls, South Dakota to Milford, Connecticut.
The flight distance (direct flight from Sioux Falls, SD to Milford, CT) is 1,212.61 mi.
1,423 mi = 1.61 kms