There are
1,671 mi
from Norwalk, CT to Mandan, ND
That's the driving distance. It would take 1 day 6 hours to go from Norwalk, Connecticut to Mandan, North Dakota.
The flight distance (direct flight from Norwalk, CT to Mandan, ND) is 1,414.14 mi.
1,671 mi = 2,689.66 kms