There are
2,142 mi
from Oshkosh, WI to Benicia, CA
That's the driving distance. It would take 1 day 13 hours to go from Oshkosh, Wisconsin to Benicia, California.
The flight distance (direct flight from Oshkosh, WI to Benicia, CA) is 1,786.67 mi.
2,142 mi = 3,447.54 kms