There are
380 mi
from Olathe, KS to Sioux Falls, SD
That's the driving distance. It would take 6 hours 48 mins to go from Olathe, Kansas to Sioux Falls, South Dakota.
The flight distance (direct flight from Olathe, KS to Sioux Falls, SD) is 337.04 mi.
380 mi = 611.53 kms