Find the best deal for flights from San Francisco to Ontario

Fly Scanner search engine allows you to save money by comparing hundreds of flight deals in seconds, finding the offer that's right for you. Filter your search according to the parameters that interest you and Fly Scanner will show you only the offers that suit your needs.

Customize your search

Looking for a San Francisco - Ontario direct flight? In just a few seconds, our comparator will provide you with the best deals for your flight by selecting your travel optionsfrom more than 400 airlines: just filter your search according to your needs.

How to save money on a flight from San Francisco to Ontario

The search engine of Fly Scanner finds for you the ideal solutions for your needs. Once you have entered your search data, you can customize the results according to your preferences and compare the prices of San Francisco - Ontario flights.

Choose alternative dates and airports

You can save even more money by comparing flight prices for other dates as well, if you have the possibility to travel flexibly. You can choose from cheap flights available departing a few days earlier or arriving a few days later. Or you can choose from alternative airports nearby in United States: the price of your ticket could be even more advantageous!