How to estimate the price of a flight from Ontario to San Francisco?

It depends. Prices for flights from Ontario to San Francisco fluctuate based on several factors.

Select your dates to check current offers.

Checking fares across several nearby dates can help you see which days offer the best deals. Jetcost lets you track price changes and grab the best opportunities.

Is there more than one airport in Ontario or San Francisco?

Even short-haul routes can benefit from considering secondary airports. It may open up more flight times or cheaper fares.

• Airports in Ontario: Only Ontario is currently operational.
• Airports in San Francisco: San Francisco is the only airport in operation.

Airports with more daily flights offer more flexibility if plans change or delays occur. If you’re flexible, consider airports near San Francisco as well.

Plan your perfect flight from Ontario to San Francisco

Jetcost gives you full control over your flight search. Filter by date, time, duration, price, and airline. See round-trip and one-way options from low-cost and full-service carriers and more.

Other popular destinations

Planning a trip to United States? Other frequent searches include: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Some airlines include baggage in the fare, others don’t — always check the details before booking. If you're looking for round-trip flights, you can easily see the most convenient combinations.