The time it takes to walk to New York from Tennessee would depend on:the exact city in Tennessee and the exact city in New Yorkthe routes you take - mind you, pedestrians are not allowed on Interstates (but Interstates are usually the straightest routes between locations)how fast you walkhow many food stops and bathroom breaks you needhow long you sleep in motels at nightwhether you get hit by a car or experience other foul playIt might be smarter to take a bus, wouldn't it...