Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego from $154

If you are unable to visit San Diego during the month of September, then departing from Montreal Pierre Elliott Trudeau Intl Airport during the month May is also very affordable. Most momondo users find prices during this month for around $412.

The cheapest day to depart from Montreal Pierre Elliott Trudeau Intl Airport to San Diego is on a Sunday. Travelers who choose to depart for San Diego on a Sunday will often find tickets for as low as $359. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $534. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $446. Flights in the evening are often more expensive with an average ticket price of $550.

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

You are more likely to see cheaper flights to San Diego from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $458 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Montreal Pierre Elliott Trudeau Intl Airport for as low as $342 on momondo.

There is only 1 cabin class available to choose from on Montreal Pierre Elliott Trudeau Intl Airport to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Montreal Pierre Elliott Trudeau Intl Airport to San Diego.

As of September 2026, prices for Montreal Pierre Elliott Trudeau Intl Airport to San Diego flights are approximately 15% cheaper when compared to flights at the same time last year.

United Airlines and Air Canada are the most popular carriers operating from Montreal Pierre Elliott Trudeau Intl to San Diego

Air Canada, Delta and United Airlines are the top three most popular airlines that fly to San Diego from Montreal Pierre Elliott Trudeau Intl Airport according to our data. Air Canada is the first choice among our users, with 49% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 4 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Flights via Detroit (DTW) offer the lowest average round-trip price of $397.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 8h 09m.

Denver (DEN) has the shortest average layover time for this route: 1h 10m.

As of September 2026, there are 1 flights per day flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego. The most common time of day flights depart is 5:00PM, with 100% of flights taking off in the afternoon.

As of September 2026, there are 8 flights per week flying from Montreal Pierre Elliott Trudeau Intl Airport to San Diego. The most common day of the week flights depart is Mon, with 25% of flights taking off on this day.