There are
2,648 mi
from Missoula, MT to Saco, ME
That's the driving distance. It would take 1 day 23 hours to go from Missoula, Montana to Saco, Maine.
The flight distance (direct flight from Missoula, MT to Saco, ME) is 2,107.49 mi.
2,648 mi = 3.22 kms