There are
344 mi
from Oshkosh, WI to Westfield, IN
That's the driving distance. It would take 6 hours 49 mins to go from Oshkosh, Wisconsin to Westfield, Indiana.
The flight distance (direct flight from Oshkosh, WI to Westfield, IN) is 301.71 mi.
344 mi = 553.98 kms