There are
1,710 mi
from Rapid City, SD to Yonkers, NY
That's the driving distance. It would take 1 day 6 hours to go from Rapid City, South Dakota to Yonkers, New York.
The flight distance (direct flight from Rapid City, SD to Yonkers, NY) is 1,501.71 mi.
1,710 mi = 2,752.36 kms