Montclair, California to Ontario: Road Trip Guide & Distance

How far is Montclair, California from Ontario?

The distance from Montclair, California to Ontario is 2.4 miles (3.9 km) as the crow flies. Ontario is located ESE of Montclair, California. By car, the driving distance is approximately 3.2 miles, taking about 4min. A direct flight would take roughly 30min. Both are located in United States.

This is a very short trip, perfect for a quick morning drive or an easy commute. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility. Given the short distance, driving or taking a train is often faster and more convenient than dealing with airport security and flight boarding times.

Coordinates come from public place data for Montclair, 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.