There are
1,865 mi
from Sioux Falls, SD to Eureka, CA
That's the driving distance. It would take 1 day 8 hours to go from Sioux Falls, South Dakota to Eureka, California.
The flight distance (direct flight from Sioux Falls, SD to Eureka, CA) is 1,412.46 mi.
1,865 mi = 1.61 kms