Cheap Flights from Montreal to San Diego

Compare Montreal to San Diego flight deals

Find the cheapest month or even day of the year to fly to San Diego

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Flight deals from Montreal to San Diego

Looking for a cheap last-minute deal or the best return flight from Montreal to San Diego? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Montreal to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Montreal to San Diego flights are currently cheapest in April.

Direct flights from Montreal to San Diego

Alternative Montreal to San Diego routes

Looking for the cheapest, fastest or easiest route from Montreal to San Diego? You could fly into the following airports instead.

Montreal to San Diego: Flight information

The things to know before you go.
Cheapest flight foundR 2,442
Cheapest month to flyApril
Average flight time5 hrs, 55 mins
Most popular airlineAir Canada
Average flights per week56

Finding cheap flights from Montreal to San Diego: Frequently asked questions

There are 2 airports in San Diego: San Diego International and McClellan-Palomar.
The best price we found for a return flight from Montreal to San Diego is R 4,482. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 55 minutes is the average flight time from Montreal to San Diego.
Air Canada and United fly direct from Montreal to San Diego.
As of March 2026, there are 14 flights per week flying from Montreal to San Diego.
The cheapest month to fly from Montreal to San Diego is usually April.
If you're flying from Montreal, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from R 4,482.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to San Diego on Tuesday, 21 April 2026.
Yes – the average flight time is 5 hours and 55 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 14°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
The cheapest airline that flies to San Diego is WestJet. And the cheapest airline that flies to McClellan-Palomar Airport is Air Canada.

Travelling from Montreal to San Diego: what you need to know

  • Montreal-Pierre Elliott Trudeau International Airport (YUL) is Montreal's main airport. Check out your options for reserving a flight from Montreal to San Diego leaving from here.

  • Disembark at San Diego's chief entry point, San Diego International Airport (SAN).

  • Around 5 hours 55 minutes is how long you'll be travelling on a direct Montreal to San Diego flight.

  • San Diego is three hours behind Montreal and is in the UTC-7 timezone.

  • Montreal-Pierre Elliott Trudeau International Airport (YUL) to San Diego International Airport (SAN) is the most popular route that connects these two cities. There are three weekly flights to choose from. If you prefer a later start to the day, the last flight from Montreal to San Diego is with Air Canada at 16:50. Choose the first YUL to SAN departure operated by Air Canada at 16:45 to maximise your time in San Diego.

  • Allow plenty of time to get on your Montreal to San Diego flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • During popular months like August, you'll want to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead for international flights whenever you're flying during peak periods in general.

How to find the cheapest flights from Montreal to San Diego

  • R 2,442 is the lowest price for a one-way ticket from Montreal to San Diego. Return flights start from R 4,477. These prices can change based on availability.

  • Score cheap Montreal to San Diego flights by booking three months ahead. According to our research, that's the sweet spot for picking up a bargain.

  • June is the best month for picking up an incredible deal on a plane ticket from Montreal to San Diego. If you're looking to travel at a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Spend less time searching for cheap flights from Montreal to San Diego by creating a Price Alert. We'll send you an email or push notification on the app when a lower fare pops up.

  • Tailor your flights using filters. Select your ideal arrival and departure times, total journey duration and airlines. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' Montreal to San Diego flights.

Flying from Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • If you're searching for a direct flight from Montreal to San Diego, you can depart from Montreal-Pierre Elliott Trudeau International Airport (YUL). Get from YUL to San Diego International Airport (SAN) in one seamless trip.

  • Secure your Montreal to San Diego plane tickets with Air Canada. This airline is a top choice for direct flights from YUL.

  • YUL is around 16 kilometres from central Montreal. If you're ride-sharing, driving or catching a cab from the centre, it'll take 25 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the journey time to be around 45 minutes.

  • Booked an early flight from Montreal to San Diego? Avoid the stress of rushing to the terminal (and catch some extra z's) by choosing one of these hotels close to Montreal-Pierre Elliott Trudeau International Airport:

  • When it comes to Montreal-Pierre Elliott Trudeau International Airport's on-time performance, 64.89% of flights complete their journey on time.

  • YUL is located at 975 Romeo Vachon Street North.

Arriving in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) is approximately 5 kilometres from the centre of San Diego. If you're catching a cab or a ride-share, the drive takes roughly 10 minutes.

  • It usually takes 20 minutes to get there when travelling by public transport.

  • Reserve a hotel near SAN if you're coming in on a late flight from Montreal to San Diego. Check in to one of these options and skip the long transfer:

  • Fast-track your adventure by picking up a San Diego International Airport rental car. Grab a set of wheels from Thrifty, Dollar or Budget to explore San Diego and beyond.

  • Get the best deal by reserving your ride from San Diego International Airport about two weeks before your departure date.

  • You'll find SAN at N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • McClellan-Palomar Airport (CLD) is about 48 kilometres from the centre of San Diego. After your flight from Montreal to San Diego, it takes approximately 40 minutes to get to the heart of the city in a ride-share or cab.

  • If you choose to travel on public transport, the ride to the centre takes 2 hours 15 minutes or so.

  • The quickest way to reach your destination is with a McClellan-Palomar Airport rental car. Pick up a set of wheels from Budget, Hertz or Avis and set off in the blink of an eye.

  • Generally speaking, the earlier you book, the better the deals and selection of vehicles. Lock in your ride from CLD the moment you know your dates.

Best time to go to San Diego

  • May is the quietest month for flights from Montreal to San Diego, while July is the most popular. Find the ideal time to visit San Diego based on whether you want a bustling atmosphere or a more laid-back vibe.

  • The warmest month in San Diego is August, with temperatures ranging between 17ºC (63ºF) and 28ºC (82ºF). Lock in your Montreal to San Diego ticket then if that's your ideal forecast.

  • If you want cooler conditions, look for a cheap flight from Montreal to San Diego in February when temperatures average between 7ºC (45ºF) and 23ºC (73ºF).

More about San Diego

  • When it comes to looking for somewhere to lay your head, you'll find the most popular stays in San Diego right here. Explore these hotels after locking in your flight from Montreal to San Diego:

  • There are so many things to see and do in this city it can be tricky to know where to begin. San Diego Zoo, USS Midway Museum and SeaWorld San Diego are top sights which should be on every San Diego itinerary.

Explore more of United States

  • San Diego has its own special appeal, but there are so many other parts of United States just waiting to be discovered. About 177 kilometres north-west of San Diego, a trip to Los Angeles will keep you on the move. Start with leading attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Around 483 kilometres east of San Diego, Phoenix is another essential stop in United States. Experience major highlights starting with Desert Botanical Garden, Heard Museum and Papago Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.