There are
1,632 mi
from Rapid City, SD to Coatesville, PA
That's the driving distance. It would take 1 day 5 hours to go from Rapid City, South Dakota to Coatesville, Pennsylvania.
The flight distance (direct flight from Rapid City, SD to Coatesville, PA) is 1,427.79 mi.
1,632 mi = 2,625.72 kms