There are
763 mi
from Knoxville, TN to Patchogue, NY
That's the driving distance. It would take 14 hours 46 mins to go from Knoxville, Tennessee to Patchogue, New York.
The flight distance (direct flight from Knoxville, TN to Patchogue, NY) is 676.97 mi.
763 mi = 1,228.57 kms