There are
1,676 mi
from Kalispell, MT to Bethany, OK
That's the driving distance. It would take 1 day 4 hours to go from Kalispell, Montana to Bethany, Oklahoma.
The flight distance (direct flight from Kalispell, MT to Bethany, OK) is 1,221.54 mi.
1,676 mi = 2,696.47 kms