There are
1,742 mi
from Rapid City, SD to Norwalk, CT
That's the driving distance. It would take 1 day 7 hours to go from Rapid City, South Dakota to Norwalk, Connecticut.
The flight distance (direct flight from Rapid City, SD to Norwalk, CT) is 1,522.09 mi.
1,742 mi = 2,803.28 kms