Miles between Rapid City, SD and Westmont, IL

There are
906 mi
from Rapid City, SD to Westmont, IL

That's the driving distance. It would take 15 hours 40 mins to go from Rapid City, South Dakota to Westmont, Illinois.

The flight distance (direct flight from Rapid City, SD to Westmont, IL) is 786.42 mi.

906 mi = 1,458.59 kms