There are
1,695 mi
from Bismarck, ND to New Haven, CT
That's the driving distance. It would take 1 day 7 hours to go from Bismarck, North Dakota to New Haven, Connecticut.
The flight distance (direct flight from Bismarck, ND to New Haven, CT) is 1,426 mi.
1,695 mi = 2,727.98 kms