There are
2,413 mi
from Missoula, MT to Lake Grove, NY
That's the driving distance. It would take 1 day 19 hours to go from Missoula, Montana to Lake Grove, New York.
The flight distance (direct flight from Missoula, MT to Lake Grove, NY) is 2,055.47 mi.
2,413 mi = 3.22 kms