There are
1,513 mi
from Rapid City, SD to Arcata, CA
That's the driving distance. It would take 1 day 2 hours to go from Rapid City, South Dakota to Arcata, California.
The flight distance (direct flight from Rapid City, SD to Arcata, CA) is 1,082.51 mi.
1,513 mi = 2,434.95 kms