There are
1,806 mi
from Kalispell, MT to Fort Smith, AR
That's the driving distance. It would take 1 day 6 hours to go from Kalispell, Montana to Fort Smith, Arkansas.
The flight distance (direct flight from Kalispell, MT to Fort Smith, AR) is 1,347.90 mi.
1,806 mi = 2,906.19 kms