Cheap flights from Montreal to California from C$ 244

The cheapest month to fly to California from Montreal is in October. Flight prices, which tend to average around C$ 585, are often lower during this time because this is during the off-season. If you’re not able to fly to California in October, then September is your next best option. Flight prices from Montreal to California during September average around C$ 595.

According to our data, Thursday is the cheapest day to fly to California from Montreal. The lowest ticket price found for a Thursday departure recently was C$ 885. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Montreal to California on a Wednesday will generally be more expensive and average around C$ 1,180. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Montreal 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$ 867. Flights to California are more costly in the evening, with an average ticket price of C$ 1,277. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Montreal Pierre Elliott Trudeau Intl to San Diego for the best Montreal - California flight prices

You are more likely to see cheaper flights to California from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around C$ 625 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Montreal for as low as C$ 539 on momondo.

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

American Airlines, Delta, and WestJet are the most popular carriers operating from Montreal to California

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to California from Montreal according to our data. Air Canada is the first choice among our users, with 66% of people opting to fly with this airline when travelling to California. Keep in mind that there are 6 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

The number of flights available between Montreal and California is 7 per day as of June 2026. The most frequent departure time is 6:00p.m., with 43% of daily flights leaving in the afternoon.

The number of flights available between Montreal and California is 49 per week as of June 2026. The most frequent departure day is Mon, with 39% of weekly flights leaving on this day.