There are
2,072 mi
from San Clemente, CA to Oshkosh, WI
That's the driving distance. It would take 1 day 13 hours to go from San Clemente, California to Oshkosh, Wisconsin.
The flight distance (direct flight from San Clemente, CA to Oshkosh, WI) is 1,717.55 mi.
2,072 mi = 3,334.39 kms