There are
1,718 mi
from Bismarck, ND to Middletown, CT
That's the driving distance. It would take 1 day 7 hours to go from Bismarck, North Dakota to Middletown, Connecticut.
The flight distance (direct flight from Bismarck, ND to Middletown, CT) is 1,431.78 mi.
1,718 mi = 2,765.60 kms