There are
463 mi
from Oshkosh, WI to Dayton, OH
That's the driving distance. It would take 9 hours 1 min to go from Oshkosh, Wisconsin to Dayton, Ohio.
The flight distance (direct flight from Oshkosh, WI to Dayton, OH) is 369.95 mi.
463 mi = 744.48 kms