There are
947 mi
from Bismarck, ND to Altus, OK
That's the driving distance. It would take 19 hours 28 mins to go from Bismarck, North Dakota to Altus, Oklahoma.
The flight distance (direct flight from Bismarck, ND to Altus, OK) is 844.28 mi.
947 mi = 1,523.29 kms