Cheap flights from Ontario to California from C$ 264

The cheapest month to fly to California from Region of Ontario is in January. Flight prices, which tend to average around C$ 503, are often lower during this time because this is during the off-season. If you’re not able to fly to California in January, then November is your next best option. Flight prices from Region of Ontario to California during November average around C$ 543.

According to our data, Thursday is the cheapest day to fly to California from Region of Ontario. The lowest ticket price found for a Thursday departure recently was C$ 595. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Region of Ontario to California on a Sunday will generally be more expensive and average around C$ 755. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Region of Ontario to California flights are usually those with departure times in the morning. Our users have found flights to California in the morning for as low as C$ 607. Flights to California are more costly in the evening, with an average ticket price of C$ 1,287. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Toronto Pearson Intl to Los Angeles for the best Ontario - California flight prices

You are more likely to see cheaper flights to California from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around C$ 569 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Region of Ontario for as low as C$ 502 on momondo.

There are 4 cabin classes available to choose from on Region of Ontario to California flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

WestJet, United Airlines, and Delta are the most popular carriers operating from Ontario to California

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to California from Region of Ontario according to our data. Air Canada is the first choice among our users, with 42% of people opting to fly with this airline when travelling to California. Keep in mind that there are 9 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

As of September 2026, 39 flights take off from Region of Ontario and land in California each day. The most common flight departure time for this route is 8:00a.m., with 53% of daily flights taking off at noon.

279 flights are operational weekly from Region of Ontario to California as of September 2026. The most popular departure day for this route is Sat, with 18% of flights per week taking off on this day.