There are
1,466 mi
from Oshkosh, WI to Missoula, MT
That's the driving distance. It would take 1 day 1 hour to go from Oshkosh, Wisconsin to Missoula, Montana.
The flight distance (direct flight from Oshkosh, WI to Missoula, MT) is 1,244.87 mi.
1,466 mi = 2,360.02 kms