Fremont, California to Ontario: Road Trip Guide & Distance

How far is Fremont, California from Ontario?

The distance from Fremont, California to Ontario is 342.1 miles (550.5 km) as the crow flies. Ontario is located SE of Fremont, California. By car, the driving distance is approximately 410.5 miles, taking about 8h 15min. A direct flight would take roughly 1h 11min. Both are located in United States.

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 Fremont, California 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.