There are
1,939 mi
from Oshkosh, WI to Barstow, CA
That's the driving distance. It would take 1 day 10 hours to go from Oshkosh, Wisconsin to Barstow, California.
The flight distance (direct flight from Oshkosh, WI to Barstow, CA) is 1,634.27 mi.
1,939 mi = 3,120.77 kms