There are
2,051 mi
from Buena Park, CA to Oshkosh, WI
That's the driving distance. It would take 1 day 12 hours to go from Buena Park, California to Oshkosh, Wisconsin.
The flight distance (direct flight from Buena Park, CA to Oshkosh, WI) is 1,719.39 mi.
2,051 mi = 3.22 kms