There are
954 mi
from Clarksville, TN to Lynbrook, NY
That's the driving distance. It would take 18 hours 6 mins to go from Clarksville, Tennessee to Lynbrook, New York.
The flight distance (direct flight from Clarksville, TN to Lynbrook, NY) is 791.15 mi.
954 mi = 1,535.20 kms