There are
1,673 mi
from Danbury, CT to Mandan, ND
That's the driving distance. It would take 1 day 6 hours to go from Danbury, Connecticut to Mandan, North Dakota.
The flight distance (direct flight from Danbury, CT to Mandan, ND) is 1,403.84 mi.
1,673 mi = 1.61 kms