There are
1,864 mi
from Missoula, MT to Middletown, OH
That's the driving distance. It would take 1 day 8 hours to go from Missoula, Montana to Middletown, Ohio.
The flight distance (direct flight from Missoula, MT to Middletown, OH) is 1,565.19 mi.
1,864 mi = 1.61 kms