There are
1,426 mi
from Rapid City, SD to Hanford, CA
That's the driving distance. It would take 1 day 1 hour to go from Rapid City, South Dakota to Hanford, California.
The flight distance (direct flight from Rapid City, SD to Hanford, CA) is 1,015.65 mi.
1,426 mi = 2,294.11 kms