Germantown, Maryland to Mammoth Cave: Road Trip Guide & Distance

How far is Germantown, Maryland from Mammoth Cave?

The distance from Germantown, Maryland to Mammoth Cave is 498.5 miles (802.3 km) as the crow flies. Mammoth Cave is located WSW of Germantown, Maryland. By car, the driving distance is approximately 598.3 miles, taking about 12h 2min. A direct flight would take roughly 1h 30min. Both are located in United States — Germantown, Maryland in Maryland and Mammoth Cave in Kentucky.

This is a solid day of driving. Be sure to take breaks every 2-3 hours to avoid driver fatigue, and plan your meals ahead of time. 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 Germantown, Maryland 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.