There are
177 mi
from Oshkosh, WI to Westmont, IL
That's the driving distance. It would take 3 hours 31 mins to go from Oshkosh, Wisconsin to Westmont, Illinois.
The flight distance (direct flight from Oshkosh, WI to Westmont, IL) is 156.64 mi.
177 mi = 285.48 kms