There are
850 mi
from Chattanooga, TN to Ossining, NY
That's the driving distance. It would take 16 hours 11 mins to go from Chattanooga, Tennessee to Ossining, New York.
The flight distance (direct flight from Chattanooga, TN to Ossining, NY) is 751.34 mi.
850 mi = 1,368.50 kms