There are
2,200 mi
from Oshkosh, WI to Sunnyvale, CA
That's the driving distance. It would take 1 day 14 hours to go from Oshkosh, Wisconsin to Sunnyvale, California.
The flight distance (direct flight from Oshkosh, WI to Sunnyvale, CA) is 1,800.25 mi.
2,200 mi = 3,540.79 kms