There are
1,670 mi
from Danbury, CT to Bismarck, ND
That's the driving distance. It would take 1 day 6 hours to go from Danbury, Connecticut to Bismarck, North Dakota.
The flight distance (direct flight from Danbury, CT to Bismarck, ND) is 1,398.73 mi.
1,670 mi = 2,688.37 kms