Planning a flight from San Francisco to Ontario?

Flight prices from San Francisco to Ontario change depending on demand and time of booking.

Choose a date to explore the best fares now.

Many users find better fares by booking several weeks in advance. In fact, for many routes, booking early is one of the best ways to save.

Best airport options between San Francisco and Ontario

If you're open to flying into or out of more than one airport, you’ll have more routes to compare.

• Airports in San Francisco: San Francisco is the only operating airport.
• Airports in Ontario: Ontario is the sole airport currently available.

Some airports offer extras like lounges, fast track, or self check-in — good to keep in mind. Comparing airports by services offered helps you balance cost and comfort.

Plan your journey from San Francisco to Ontario with ease

Use Jetcost to tailor your search — direct or connecting flights, round-trip or one-way, filtered by airline, price, travel time, or agency.

Other popular destinations

Exploring options in United States? These cities are trending: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Flight availability can change quickly — refresh the results if you’ve been away from the page for a while.