There are
449 mi
from Oshkosh, WI to Southfield, MI
That's the driving distance. It would take 8 hours 31 mins to go from Oshkosh, Wisconsin to Southfield, Michigan.
The flight distance (direct flight from Oshkosh, WI to Southfield, MI) is 288.36 mi.
449 mi = 721.84 kms