There are
729 mi
from Chattanooga, TN to Dunkirk, NY
That's the driving distance. It would take 14 hours 4 mins to go from Chattanooga, Tennessee to Dunkirk, New York.
The flight distance (direct flight from Chattanooga, TN to Dunkirk, NY) is 605.81 mi.
729 mi = 1,173.48 kms