There are
849 mi
from Bismarck, ND to New Lenox, IL
That's the driving distance. It would take 15 hours 8 mins to go from Bismarck, North Dakota to New Lenox, Illinois.
The flight distance (direct flight from Bismarck, ND to New Lenox, IL) is 731.91 mi.
849 mi = 1,367.04 kms