There are
1,434 mi
from Waterbury, CT to Sioux Falls, SD
That's the driving distance. It would take 1 day 2 hours to go from Waterbury, Connecticut to Sioux Falls, South Dakota.
The flight distance (direct flight from Waterbury, CT to Sioux Falls, SD) is 1,207.36 mi.
1,434 mi = 1.61 kms