There are
1,435 mi
from New Haven, CT to Sioux Falls, SD
That's the driving distance. It would take 1 day 2 hours to go from New Haven, Connecticut to Sioux Falls, South Dakota.
The flight distance (direct flight from New Haven, CT to Sioux Falls, SD) is 1,217.97 mi.
1,435 mi = 1.61 kms