There are
1,394 mi
from Sioux Falls, SD to Stamford, CT
That's the driving distance. It would take 1 day 1 hour to go from Sioux Falls, South Dakota to Stamford, Connecticut.
The flight distance (direct flight from Sioux Falls, SD to Stamford, CT) is 1,192.15 mi.
1,394 mi = 1.61 kms