Ontario to San Tan Valley: Road Trip Guide & Distance

How far is Ontario from San Tan Valley?

The distance from Ontario to San Tan Valley is 357.3 miles (575 km) as the crow flies. San Tan Valley is located E of Ontario. By car, the driving distance is approximately 428.7 miles, taking about 8h 38min. A direct flight would take roughly 1h 13min. Both are located in United States — Ontario in California and San Tan Valley in Arizona.

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 Ontario and San Tan Valley. 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.