There are
1,837 mi
from Missoula, MT to Fremont, OH
That's the driving distance. It would take 1 day 8 hours to go from Missoula, Montana to Fremont, Ohio.
The flight distance (direct flight from Missoula, MT to Fremont, OH) is 1,568.48 mi.
1,837 mi = 1.61 kms