Cheap flights from San Diego to Montreal from $143

The cheapest month to fly to Montreal from San Diego is in February. Flight prices, which tend to average around $486, are often lower during this time because this is during the off-season. If you are unable to visit Montreal during the month of February, then departing from San Diego during the month May is also very affordable. Most momondo users find prices during this month for around $497.

The cheapest day to depart from San Diego to Montreal is on a Sunday when prices can be found for as low as $715. Flights from San Diego to Montreal on a Monday will generally be more expensive and average around $952. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

You are more likely to see cheaper flights to Montreal from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around $543 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from San Diego for as low as $461 on momondo.

There are 4 cabin classes available to choose from on San Diego to Montreal 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 San Diego to Montreal.

United Airlines and Delta are the most popular carriers operating from San Diego to Montreal

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Montreal from San Diego according to our data. Air Canada is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Montreal. Keep in mind that there are 4 different airlines that fly to Montreal on a routine basis, so you have a few additional options to choose from.

Chicago (ORD) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Detroit (DTW) offer the lowest average round-trip price of $555.

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 7h 05m.

Chicago (ORD) has the shortest average layover time for this route: 1h 33m.

As of September 2026, 1 flights take off from San Diego and land in Montreal each day. The most common flight departure time for this route is 7:00AM, with 100% of daily flights taking off at noon.

12 flights are operational weekly from San Diego to Montreal as of September 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.