There are
2,180 mi
from Oshkosh, WI to Santa Maria, CA
That's the driving distance. It would take 1 day 15 hours to go from Oshkosh, Wisconsin to Santa Maria, California.
The flight distance (direct flight from Oshkosh, WI to Santa Maria, CA) is 1,798.90 mi.
2,180 mi = 3,508.54 kms