There are
1,772 mi
from Sunnyvale, CA to Sioux Falls, SD
That's the driving distance. It would take 1 day 6 hours to go from Sunnyvale, California to Sioux Falls, South Dakota.
The flight distance (direct flight from Sunnyvale, CA to Sioux Falls, SD) is 1,392.35 mi.
1,772 mi = 1.61 kms