There are
1,687 mi
from Sioux Falls, SD to Vacaville, CA
That's the driving distance. It would take 1 day 4 hours to go from Sioux Falls, South Dakota to Vacaville, California.
The flight distance (direct flight from Sioux Falls, SD to Vacaville, CA) is 1,361.58 mi.
1,687 mi = 1.61 kms