There are
1,343 mi
from Rapid City, SD to Hermosa Beach, CA
That's the driving distance. It would take 23 hours 58 mins to go from Rapid City, South Dakota to Hermosa Beach, California.
The flight distance (direct flight from Rapid City, SD to Hermosa Beach, CA) is 1,075.01 mi.
1,343 mi = 2,161.73 kms