There are
225 mi
from Oshkosh, WI to Bourbonnais, IL
That's the driving distance. It would take 4 hours 27 mins to go from Oshkosh, Wisconsin to Bourbonnais, Illinois.
The flight distance (direct flight from Oshkosh, WI to Bourbonnais, IL) is 199.22 mi.
225 mi = 361.75 kms