Johnson City to Mammoth Cave: Road Trip Guide & Distance

How far is Johnson City from Mammoth Cave?

The distance from Johnson City to Mammoth Cave is 216 miles (347.6 km) as the crow flies. Mammoth Cave is located WNW of Johnson City. By car, the driving distance is approximately 270 miles, taking about 5h 26min. A direct flight would take roughly 56min. Both are located in United States — Johnson City in Tennessee and Mammoth Cave in Kentucky.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare.

Coordinates come from public place data for Johnson City and Mammoth Cave. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.