There are
2,072 mi
from Oshkosh, WI to Fillmore, CA
That's the driving distance. It would take 1 day 13 hours to go from Oshkosh, Wisconsin to Fillmore, California.
The flight distance (direct flight from Oshkosh, WI to Fillmore, CA) is 1,744.37 mi.
2,072 mi = 3,334.87 kms