There are
1,636 mi
from Kalispell, MT to St John, IN
That's the driving distance. It would take 1 day 5 hours to go from Kalispell, Montana to St John, Indiana.
The flight distance (direct flight from Kalispell, MT to St John, IN) is 1,386.99 mi.
1,636 mi = 2,632.33 kms