There are
1,245 mi
from Bismarck, ND to Stephenville, TX
That's the driving distance. It would take 22 hours 37 mins to go from Bismarck, North Dakota to Stephenville, Texas.
The flight distance (direct flight from Bismarck, ND to Stephenville, TX) is 1,017.10 mi.
1,245 mi = 2,002.82 kms