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Cheap Flights from Montreal (YMQA) to San Diego (SAN)

Compare Montreal to San Diego International flight deals

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

Book the best San Diego International fare with no extra fees

Flight deals from Montreal to San Diego International

Looking for a cheap last-minute deal or the best return flight from Montreal to San Diego International Airport? If you want to travel next month, return fares start from $586. Find the lowest prices on one-way and return tickets right here.
San Diego.$423 per passenger.Departing Fri, 11 Sep, returning Fri, 18 Sep.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Fri, 11 Sep, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Fri, 18 Sep, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $423, select.
San Diego.$447 per passenger.Departing Tue, 6 Oct, returning Sat, 10 Oct.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Tue, 6 Oct, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Sat, 10 Oct, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $447, select.
San Diego.$449 per passenger.Departing Tue, 22 Sep, returning Tue, 6 Oct.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Tue, 22 Sep, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Tue, 6 Oct, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $449, select.
San Diego.$479 per passenger.Departing Sat, 29 Aug, returning Tue, 8 Sep.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Sat, 29 Aug, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Tue, 8 Sep, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $479, select.
San Diego.$509 per passenger.Departing Sat, 22 Aug, returning Sat, 29 Aug.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Sat, 22 Aug, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Sat, 29 Aug, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $509, select.
San Diego.$571 per passenger.Departing Mon, 26 Oct, returning Mon, 2 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Montreal Pierre Elliott Trudeau on Mon, 26 Oct, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Mon, 2 Nov, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $571, select.
San Diego.$584 per passenger.Departing Fri, 22 May, returning Sat, 30 May.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Fri, 22 May, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Sat, 30 May, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $584, select.
San Diego.$586 per passenger.Departing Thu, 4 Jun, returning Mon, 8 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Montreal Pierre Elliott Trudeau on Thu, 4 Jun, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Mon, 8 Jun, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $586, select.
San Diego.$588 per passenger.Departing Mon, 15 Jun, returning Mon, 27 Jul.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Mon, 15 Jun, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Mon, 27 Jul, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $588, select.
San Diego.$590 per passenger.Departing Sun, 1 Nov, returning Thu, 5 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Montreal Pierre Elliott Trudeau on Sun, 1 Nov, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Thu, 5 Nov, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $590, select.
San Diego.$595 per passenger.Departing Sat, 30 May, returning Sat, 6 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Montreal Pierre Elliott Trudeau on Sat, 30 May, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Sat, 6 Jun, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $595, select.
San Diego.$596 per passenger.Departing Thu, 23 Jul, returning Mon, 27 Jul.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Thu, 23 Jul, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Mon, 27 Jul, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $596, select.
San Diego.$600 per passenger.Departing Mon, 20 Jul, returning Tue, 4 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Montreal Pierre Elliott Trudeau on Mon, 20 Jul, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Tue, 4 Aug, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $600, select.
San Diego.$600 per passenger.Departing Sat, 25 Jul, returning Sat, 5 Sep.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Sat, 25 Jul, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Sat, 5 Sep, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $600, select.
San Diego.$615 per passenger.Departing Fri, 4 Dec, returning Mon, 7 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Montreal Pierre Elliott Trudeau on Fri, 4 Dec, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Mon, 7 Dec, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $615, select.
San Diego.$620 per passenger.Departing Sat, 25 Jul, returning Sun, 30 Aug.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Sat, 25 Jul, arriving in San Diego International.Inbound direct flight with Air Canada departs from San Diego International on Sun, 30 Aug, arriving in Montreal Pierre Elliott Trudeau.Price includes taxes and charges.From $620, select.

Find the cheapest month to fly from Montreal to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Montreal to San Diego International flights are currently cheapest in September.
May
from $584
Jun
from $586
Jul
from $596
Aug
from $509
Sep
from $423
Oct
from $447
Nov
from $590
Dec
from $615
Jan
from $678
Feb
from $651
Mar
from $650
Apr
Find prices

Direct flights from Montreal to San Diego International

Montreal to San Diego International: Alternative routes

Compare routes from Montreal to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

San Diego International

4km from central San Diego
ClosestCheapest
from $423
Search flights

McClellan-Palomar

48km from central San Diego
from $969
Search flights

Montreal to San Diego: Flight information

The things to know before you go.
Cheapest flight found$423
Cheapest month to flySeptember
Average flight time5 hrs, 56 mins
Most popular airlineAir Canada
Average flights per week15

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

The best price we found for a return flight from Montreal to San Diego International is $423. 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 56 minutes is the average flight time from Montreal to San Diego International.
Air Canada, Air Canada Rouge and United fly direct from Montreal to San Diego International.
As of May 2026, there are 60 flights per week flying from Montreal to San Diego International.
The cheapest month to fly from Montreal to San Diego International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to San Diego International Airport on Friday, 11 September 2026.
Yes – the average flight time is 5 hours and 56 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 International 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.
The cheapest airline that flies to San Diego International is Air Canada .

Travelling from Montreal to San Diego International Airport (SAN): What you need to know

  • Montreal's main base, Montreal-Trudeau International Airport (YUL), is where many unforgettable trips begin. Explore your departure options from here for your flight from Montreal to San Diego International Airport (SAN).

  • Take off on a direct Montreal to San Diego International Airport flight and you'll be in the air for around 5 hours 55 minutes.

  • The timezone in San Diego is UTC-8, which is three hours behind Montreal. San Diego International Airport is located in San Diego.

  • Take your pick of 3 direct flights every week between Montreal-Trudeau International Airport (YUL) and San Diego International Airport (SAN). This is the busiest route, with Air Canada offering a 4:45pm departure from YUL to SAN.

  • To ensure you catch your flight from Montreal to SAN, leave plenty of time to check in and find your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the standard rule.

  • Popular months like July or other busy periods mean bigger queues and potential delays. Stay ahead of the crowds by getting to the airport even earlier. Aim for at least four hours ahead of an international flight and two hours before domestic departures.

Airports in Montreal

Montreal-Trudeau International Airport (YUL)

  • Montreal-Trudeau International Airport (YUL) offers an easy route to your destination. Nonstop flights from Montreal to San Diego International Airport (SAN) take off from this terminal.

  • You can book a direct flight from Montreal to San Diego International Airport with Air Canada. This top airline operates departures from YUL.

  • The airline most travellers choose when flying between YUL and SAN is Air Canada.

  • Located around 19 kilometres from the centre of Montreal, YUL can be reached in about 25 minutes by car, depending on traffic. The journey on public transport takes roughly 45 minutes.

  • Catching an early flight from Montreal to San Diego International Airport? Avoid the mad dash to the terminal (and sneak in some extra snooze time) by picking one of these hotels near Montreal-Trudeau International Airport:

  • 65% of flights that leave from Montreal-Trudeau International Airport make it to their destination on time.

  • YUL is located at 975 Romeo Vachon Street North.

Montreal Metropolitan Airport (YHU)

About San Diego International Airport (SAN)

  • If you have a late flight from Montreal to San Diego International Airport, nothing beats the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and relaxing not long after at one of these options near SAN:

  • Go wherever you want, whenever you want with a San Diego International Airport rental car. Book your wheels from Thrifty, Dollar or Budget and discover more of San Diego and beyond.

  • Booking your vehicle around two weeks in advance of your Montreal to San Diego International Airport flight can help you score a better rate.

  • You'll find SAN at N Harbour Dr.

Getting from San Diego International Airport (SAN) to central San Diego

  • From San Diego International Airport, central San Diego is around 5 kilometres away. It takes about 15 minutes to reach the city centre by car.

  • Travelling by public transport typically takes 25 minutes.

How to find the cheapest flights from Montreal to San Diego International Airport (SAN)

  • Currently, $261 is the lowest price we've found for a one-way ticket from Montreal to San Diego International Airport. The cheapest price for a return flight is $423. Keep in mind fares may change due to availability at the time of booking.

  • Get your hands on cheap flights from Montreal to SAN by booking one month ahead. According to our research, that's the ideal time frame for finding a bargain.

  • Schedule your trip for June. That's the best month for landing cheap Montreal to San Diego International Airport tickets. If you're flexible with your travel dates, use the 'Whole month' tool to find the lowest price across each month.

  • You don't need to check every day to find out if prices have dropped when you set up a Price Alert. We'll let you know when a better deal comes up on plane tickets from Montreal to SAN.

  • Save on your flight from Montreal to San Diego International Airport by using filters. Choose your preferred times, airlines and number of stops, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Montreal to San Diego International Airport (SAN)

  • May is the most popular month for flights from Montreal to San Diego International Airport (SAN). Visit San Diego in September if you'd rather avoid peak season.

  • Before locking in your Montreal to SAN plane ticket, consider what kind of weather you prefer. August is the warmest month in San Diego, with temperatures ranging from 17ºC (63ºF) to 28ºC (82ºF).

  • For cooler conditions, look for a cheap ticket from Montreal to San Diego International Airport in February when temperatures are 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. Check out these options once you've booked your flight from Montreal to San Diego International Airport:

  • There are so many things to discover in this city, it can be difficult to know where to start. San Diego Zoo, San Diego Balboa Park and USS Midway Museum are top attractions which should feature on any well-planned San Diego itinerary.

Explore more of the United States

  • Los Angeles is just one of the many cities in the United States waiting to be discovered once you've seen San Diego. Around 177 kilometres away to the northwest, check out popular attractions including Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • Long Beach is another standout destination in the United States and is around 145 kilometres northwest of San Diego. No trip is complete without dropping by The Queen Mary, Museum of Latin American Art (MOLAA) and Long Beach Convention and Entertainment Centre.

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