There are
972 mi
from Norwalk, CT to Lewisburg, TN
That's the driving distance. It would take 18 hours 31 mins to go from Norwalk, Connecticut to Lewisburg, Tennessee.
The flight distance (direct flight from Norwalk, CT to Lewisburg, TN) is 823.35 mi.
972 mi = 1,564.55 kms