Miles between Kalispell, MT and Duncan, OK

There are
1,662 mi
from Kalispell, MT to Duncan, OK

That's the driving distance. It would take 1 day 5 hours to go from Kalispell, Montana to Duncan, Oklahoma.

The flight distance (direct flight from Kalispell, MT to Duncan, OK) is 1,265.69 mi.

1,662 mi = 2,675.08 kms