There are
2,500 mi
from Missoula, MT to Claremont, NH
That's the driving distance. It would take 1 day 21 hours to go from Missoula, Montana to Claremont, New Hampshire.
The flight distance (direct flight from Missoula, MT to Claremont, NH) is 2,021.88 mi.
2,500 mi = 3.22 kms