There are
1,718 mi
from Sioux Falls, SD to Clearlake, CA
That's the driving distance. It would take 1 day 5 hours to go from Sioux Falls, South Dakota to Clearlake, California.
The flight distance (direct flight from Sioux Falls, SD to Clearlake, CA) is 1,377.47 mi.
1,718 mi = 1.61 kms