There are
2,382 mi
from Passaic, NJ to Kalispell, MT
That's the driving distance. It would take 1 day 19 hours to go from Passaic, New Jersey to Kalispell, Montana.
The flight distance (direct flight from Passaic, NJ to Kalispell, MT) is 2,018.53 mi.
2,382 mi = 3,833.80 kms