YUL - SAN

C$ 253 Find Cheap Flights from Montreal to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to San Diego departing on 27/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to San Diego, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 425
Typical prices: C$ 708-C$ 381
Air Canada
Fri 1/5Fri 8/5
YUL - SAN • Direct
Cheapest one-way flights
C$ 253
Typical prices: C$ 294-C$ 406
WestJet
Mon 27/4
YUL - SAN • 1 stop
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Air Canada's Preferred Economy adds 10 cm legroom.
United's Economy Plus offers 15 cm more legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Direct flights
Mon, Tue, Thu, Fri, Sat, Sun
You can fly direct with Air Canada. Average duration is 5h 58m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from C$ 425 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg C$ 484 (round-trip)
Shortest trip • 8h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 35% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
Good to know
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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Montreal to San Diego (YUL-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Montreal to San Diego

Fri, 1 May - Fri, 8 May
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 425Air Canada
Wed, 20 May - Wed, 27 May
Air Canada Logo
6:00 a.m. - 12:18 p.m.
YUL
-
SAN
9h 18m
1 stop
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 428Air Canada
Fri, 1 May - Fri, 8 May
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 431Air Canada
Thu, 7 May - Mon, 11 May
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 432Air Canada
Fri, 1 May - Fri, 8 May
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 447Air Canada
Fri, 8 May - Mon, 11 May
Air Canada Logo
7:00 a.m. - 12:18 p.m.
YUL
-
SAN
8h 18m
1 stop
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 450Air Canada
Thu, 21 May - Mon, 25 May
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 451Air Canada
Sun, 3 May - Tue, 12 May
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 458Air Canada
Sun, 3 May - Tue, 12 May
Air Canada Logo
5:45 p.m. - 8:43 p.m.
YUL
-
SAN
5h 58mdirect
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 460Air Canada
Wed, 20 May - Wed, 27 May
Air Canada Logo
6:00 a.m. - 12:18 p.m.
YUL
-
SAN
9h 18m
1 stop
Air Canada Logo
7:00 a.m. - 3:31 p.m.
SAN
-
YUL
5h 31mdirect
C$ 461Air Canada
Booking Insights

KAYAK's insights & trends for Montreal to San Diego flights

Get data-powered insights and trends into flights from Montreal to San Diego to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego departing in May.

What’s the cheapest day of the week to fly from Montreal to San Diego?

The average price of all round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego clicked on KAYAK for each day over the last 12 months.

For Montreal to San Diego, Monday is the cheapest day to fly on average and Friday is the most expensive. Flying from San Diego back to Montreal, the best deals are generally found on Friday, with Tuesday being the most expensive.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego is May, where tickets cost C$ 460 (return) on average. On the other hand, the most expensive months are March and November, where the average cost of round-trip tickets is C$ 694 and C$ 601 respectively.

Can I save money by flying with a layover from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at C$ 624 on average.

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to San Diego, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego, you should book around 4 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Expert advice

Expert advice for your flight from Montreal to San Diego

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonFebruary
Cheapest flightC$ 253
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Montreal to San Diego

When to book flights from Montreal to San Diego

Are your dates flexible? Find out the best times to travel from Montreal to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Montreal to San Diego flights

  • How many flights are there between Montreal Pierre Elliott Trudeau Intl Airport and San Diego per day?

    There is a maximum of 1 nonstop flight a day that takes off from Montreal Pierre Elliott Trudeau Intl Airport and lands in San Diego, with an average flight time of 5h 58m. The most common departure time is 5:00 p.m. and most flights take off in the afternoon. Each week, there are 6 flights.

  • What is the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego?

    In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego was C$ 253 for a one-way ticket and C$ 425 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Montreal to San Diego?

    Air Canada, and United Airlines offer inflight Wi-Fi service on the Montreal to San Diego flight route.

  • Which aircraft models fly most regularly from Montreal to San Diego?

    The Airbus A220-300 is the aircraft model that flies most regularly on the Montreal to San Diego flight route.

  • Which airline alliances offer flights from Montreal to San Diego?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Montreal and San Diego, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Montreal to San Diego?

    You can catch a direct flight from Montreal to San Diego on Monday, Tuesday, Thursday, Friday, Saturday, and Sunday.

  • Which is the best airline for flights from Montreal to San Diego, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Montreal to San Diego are Delta and United Airlines. With an average price for the route of C$ 495 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of C$ 523 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Montreal to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Montreal to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Montreal to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Montreal is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Montreal to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Montreal with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Montreal to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Montreal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 475 or less round-trip.

Prefer to fly direct from Montreal to San Diego?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Montreal Pierre Elliott Trudeau Intl to San Diego.
Find which airlines fly direct from Montreal Pierre Elliott Trudeau Intl Airport to San Diego Airport, which days they fly and book direct flights.

Direct departures

Montreal Pierre Elliott Trudeau Intl to San Diego

Monday

Air Canada

Air Canada

Tuesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Friday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

Sunday

Air Canada

Air Canada

See more nonstop flights

Direct returns

San Diego to Montreal Pierre Elliott Trudeau Intl

Monday

Air Canada

Air Canada

Tuesday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Friday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

Sunday

Air Canada

Air Canada

See more nonstop flights

Reviews of the top 4 airlines flying from Montreal to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Montreal to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Montreal to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8390 reviews
8.1Boarding
8.5Crew
7.9Comfort
7.8Entertainment
7.2Food
Airline reviews

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

10.0 ExcellentSarah, Apr 2026
LAX - SFO
Read more Delta reviews

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The cabin temperature was nice and cool. The wifi was not working.

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

Terrible, if possible won't be flying again anytime soon!

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

we did a return flight from Paris CDG to SFO. This trip was much better than the departing flight SFO to CDG. The food was better quality, the crew was nicer, and the interior of the plane seemed cleaner.

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

We got to get extended leg room in Econ plus that was great. It was nice having our own dietary needs met with our meals, and the connecting flights had it as well. Only negative were the seats my bottom was/is really sore after a ten plus hour flight. Those seats are horrible, understandable for as many people use them. So we are going to purchase a gel seat pad.

Flight to Japan was was better across the board than the return to USA. Entertainment: Movie selection was old and not to my liking. Way too many woke choices. Not enough selections for sports or drama. Service: some of the crew were great. Not all. I paid for business class. a premium. Some of the crew thought they 'had' t do there job instead of wanting to serve and be polite. Food: Way to Japan was good. Way back to USA bad. Boarding: Wat out did not offer Business only; had to go thru general. If you pay for business, you should get business perks. Suggest you look for other than United for travel to Asia

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

The head flight attendant made the trip excellent. He was very accommodating.

The economy seats on the 777 was not as cramped as I had feared, but the food was terrible.

Buying ticket from kayak instant booking was a huge mistake, never to be repeated again! The Kayak didn’t book the tickets directly, it handed it off to a third party Underpricer, that booked a code shared American Airlines flight operated by Cathay Pacific!! When managing the booking American Airlines would recognize the itinerary but wouldn’t let me do anything stating, the flight is operated by Cathay Pacific so go to their website. Cathay Pacific would recognize the itinerary, neither by reservation ID or ticket number…asking to reach out to the third party Underpricer….calling Underpricer resulted in no help like seat requests, mileage number or upgrade request, 15hr layover accommodation voucher guidance…so net in net avoid booking through three layers of intermediaries

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Flight was on time. Cabin attendants made no recognition of my name or being an Advantage Executive Platinum member.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

After 3 hours of delays, they ended up cancelling my flight. And although I could purchase one-way tickets to get to my destination, they would not offer me these flights as compensation for the cancelled flight, and I didn't end up making it home until 13 hours after I was originally supposed to arrive. It made for an extremely strenuous end to an otherwise good trip.

Be careful about the bad policy and when purchasing seats

Very disappointed with premier lounge. Food selection very poor, both coffee machines out of order. For the price you charge for an upgrade, the seats don’t fully recline, movie selection is old. Not very good value. Asian airlines are light years ahead at a more affordable price.

We left over 2 hours late and they didn't even give us a complimentary snack, when getting to the desk I asked if I could be put in a row with only 1 other person or an empt y one I was told the flight was full when the last two rows were empty. All around over it

Air Canada’s problems are not staff related by and large, no. The problem is tiny jets between the U.S. and Canada - yes, believe it or not they are still “international” (just ask our own Mango Maniac in power in the U.S.). The little aisle is compounded by a design flaw of a “dog leg” starting at seat 12. Woe be unto you if you sit here as passengers and attendants do not have sufficient room to not hit you in the face with backpacks. One thing I will say very positively about Air Canada is you still provide pillows and blankets on transcontinental flights to all, not just the elites. Your tiny improperly designed jets are also a problem flying city to city within Canada also. One can only say you remind us of a “Jet Blue” or “Spirit” experience. Also your luggage space is downright Byzantine! We will endeavor to avoid you and use other U.S. carriers, albeit charging more.

Terrible canceled flight and lost my luggage. Flew me to Halifax. Tgat flight was delayed, had to spend night in airport chair.

My seat was not comfortable. Flight was smooth. Regretfully we had two delays before takeoff

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

The staff could not have been any friendlier. Lots of usb ports on our aircraft.

It was crazy, boarded over a hour late from scheduled departure. Then when arrived in BNA issued with getting off the plane…over 1/2 hour. Not looking forward to flying Air Canada, ever again.

Everything you need to know for your flight from Montreal to San Diego

Information on your arrival and departure airports