There are
1,439 mi
from Bismarck, ND to Deer Park, TX
That's the driving distance. It would take 1 day 1 hour to go from Bismarck, North Dakota to Deer Park, Texas.
The flight distance (direct flight from Bismarck, ND to Deer Park, TX) is 1,220.12 mi.
1,439 mi = 2,315.74 kms