Miles between Rapid City, SD and Decatur, IL

There are
976 mi
from Rapid City, SD to Decatur, IL

That's the driving distance. It would take 16 hours 53 mins to go from Rapid City, South Dakota to Decatur, Illinois.

The flight distance (direct flight from Rapid City, SD to Decatur, IL) is 788.51 mi.

976 mi = 1,570.57 kms