There are
973 mi
from Waterbury, CT to Smyrna, TN
That's the driving distance. It would take 18 hours 28 mins to go from Waterbury, Connecticut to Smyrna, Tennessee.
The flight distance (direct flight from Waterbury, CT to Smyrna, TN) is 820.07 mi.
973 mi = 1,565.71 kms