Altamont to Ontario: Road Trip Guide & Distance

How far is Altamont from Ontario?

The distance from Altamont to Ontario is 604.7 miles (973.2 km) as the crow flies. Ontario is located SSE of Altamont. By car, the driving distance is approximately 725.6 miles, taking about 14h 36min. A direct flight would take roughly 1h 43min. Both are located in United States — Altamont in Oregon and Ontario in California.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. 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 Ontario. 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.