There are
1,502 mi
from Rapid City, SD to Alpharetta, GA
That's the driving distance. It would take 1 day 2 hours to go from Rapid City, South Dakota to Alpharetta, Georgia.
The flight distance (direct flight from Rapid City, SD to Alpharetta, GA) is 1,223.91 mi.
1,502 mi = 2,417.34 kms