There are
2,008 mi
from Fontana, CA to Oshkosh, WI
That's the driving distance. It would take 1 day 11 hours to go from Fontana, California to Oshkosh, Wisconsin.
The flight distance (direct flight from Fontana, CA to Oshkosh, WI) is 1,683.87 mi.
2,008 mi = 3.22 kms