Miles between Missoula, MT and Ammon, ID

There are
320 mi
from Missoula, MT to Ammon, ID

That's the driving distance. It would take 5 hours 10 mins to go from Missoula, Montana to Ammon, Idaho.

The flight distance (direct flight from Missoula, MT to Ammon, ID) is 254.72 mi.

320 mi = 514.39 kms