There are
1,690 mi
from Bismarck, ND to Derby, CT
That's the driving distance. It would take 1 day 7 hours to go from Bismarck, North Dakota to Derby, Connecticut.
The flight distance (direct flight from Bismarck, ND to Derby, CT) is 1,418.06 mi.
1,690 mi = 2,719.06 kms