There are
1,867 mi
from Missoula, MT to Dayton, OH
That's the driving distance. It would take 1 day 8 hours to go from Missoula, Montana to Dayton, Ohio.
The flight distance (direct flight from Missoula, MT to Dayton, OH) is 1,566.86 mi.
1,867 mi = 1.61 kms