There are
1,756 mi
from Oshkosh, WI to Mesa, AZ
That's the driving distance. It would take 1 day 8 hours to go from Oshkosh, Wisconsin to Mesa, Arizona.
The flight distance (direct flight from Oshkosh, WI to Mesa, AZ) is 1,446.25 mi.
1,756 mi = 2,825.84 kms