There are
1,472 mi
from Rapid City, SD to Mendota, CA
That's the driving distance. It would take 1 day 1 hour to go from Rapid City, South Dakota to Mendota, California.
The flight distance (direct flight from Rapid City, SD to Mendota, CA) is 1,031.59 mi.
1,472 mi = 2,369.54 kms