There are
2,051 mi
from Oshkosh, WI to Santa Ana, CA
That's the driving distance. It would take 1 day 12 hours to go from Oshkosh, Wisconsin to Santa Ana, California.
The flight distance (direct flight from Oshkosh, WI to Santa Ana, CA) is 1,717.72 mi.
2,051 mi = 3,300.95 kms