There are
2,405 mi
from Missoula, MT to Danbury, CT
That's the driving distance. It would take 1 day 18 hours to go from Missoula, Montana to Danbury, Connecticut.
The flight distance (direct flight from Missoula, MT to Danbury, CT) is 2,023.62 mi.
2,405 mi = 3.22 kms