There are
2,058 mi
from Oshkosh, WI to Mission Viejo, CA
That's the driving distance. It would take 1 day 12 hours to go from Oshkosh, Wisconsin to Mission Viejo, California.
The flight distance (direct flight from Oshkosh, WI to Mission Viejo, CA) is 1,713.81 mi.
2,058 mi = 3,312.76 kms