There are
445 mi
from Sioux Falls, SD to Oshkosh, WI
That's the driving distance. It would take 8 hours 36 mins to go from Sioux Falls, South Dakota to Oshkosh, Wisconsin.
The flight distance (direct flight from Sioux Falls, SD to Oshkosh, WI) is 408.05 mi.
445 mi = 716.74 kms