Altamont to Mammoth Lakes: Road Trip Guide & Distance

How far is Altamont from Mammoth Lakes?

The distance from Altamont to Mammoth Lakes is 347.3 miles (558.9 km) as the crow flies. Mammoth Lakes is located SSE of Altamont. By car, the driving distance is approximately 416.8 miles, taking about 8h 23min. A direct flight would take roughly 1h 12min. Both are located in United States — Altamont in Oregon and Mammoth Lakes in California.

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. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility.

Coordinates come from public place data for Altamont and Mammoth Lakes. 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.