There are
2,435 mi
from Danbury, CT to Kalispell, MT
That's the driving distance. It would take 1 day 20 hours to go from Danbury, Connecticut to Kalispell, Montana.
The flight distance (direct flight from Danbury, CT to Kalispell, MT) is 2,032.25 mi.
2,435 mi = 3.22 kms