There are
169 mi
from Oshkosh, WI to South Elgin, IL
That's the driving distance. It would take 3 hours 37 mins to go from Oshkosh, Wisconsin to South Elgin, Illinois.
The flight distance (direct flight from Oshkosh, WI to South Elgin, IL) is 140.86 mi.
169 mi = 271.19 kms