There are
2,176 mi
from Oshkosh, WI to Santa Rosa, CA
That's the driving distance. It would take 1 day 14 hours to go from Oshkosh, Wisconsin to Santa Rosa, California.
The flight distance (direct flight from Oshkosh, WI to Santa Rosa, CA) is 1,803.35 mi.
2,176 mi = 3,501.52 kms