There are
1,672 mi
from Oshkosh, WI to Flagstaff, AZ
That's the driving distance. It would take 1 day 6 hours to go from Oshkosh, Wisconsin to Flagstaff, Arizona.
The flight distance (direct flight from Oshkosh, WI to Flagstaff, AZ) is 1,365.81 mi.
1,672 mi = 2,690.69 kms