There are
1,610 mi
from Sioux Falls, SD to Grass Valley, CA
That's the driving distance. It would take 1 day 3 hours to go from Sioux Falls, South Dakota to Grass Valley, California.
The flight distance (direct flight from Sioux Falls, SD to Grass Valley, CA) is 1,292.77 mi.
1,610 mi = 1.61 kms