YUL - SAN

C$ 331 Find Cheap Flights from Montreal to San Diego – Compare and Save

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 21/9. 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.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 564
Typical prices: C$ 563-C$ 770
Air Canada
Mon 16/11Wed 18/11
YUL - SAN • 1 stop
Cheapest direct flights
C$ 574
Air Canada
Thu 27/8Sat 5/9
YUL - SAN • Direct
Direct flights
Mon, Tue, Thu, Fri, Sat, Sun
You can fly direct with Air Canada. Average duration is 5h 54m
Direct flights
Direct flights
+1
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Direct flights
Direct flights
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Top airlines
Cheapest • from C$ 564 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg C$ 497 (round-trip)
Shortest trip • 8h 08m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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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

Mon, 16 Nov - Wed, 18 Nov
Air Canada Logo
9:20 p.m. - 12:00 p.m.
YUL
-
SAN
17h 40m
1 stop
Air Canada Logo
7:05 a.m. - 8:43 p.m.
SAN
-
YUL
10h 38m
1 stop
C$ 564Air Canada
Thu, 5 Nov - Sat, 14 Nov
American Airlines Logo
12:59 p.m. - 6:53 p.m.
YUL
-
SAN
8h 54m
1 stop
American Airlines Logo
7:30 p.m. - 12:15 p.m.
SAN
-
YUL
13h 45m
2 stops
C$ 569American Airlines
Thu, 27 Aug - Sat, 5 Sep
Air Canada Logo
7:30 a.m. - 4:10 p.m.
YUL
-
SAN
11h 40m
1 stop
Air Canada Logo
7:00 a.m. - 3:33 p.m.
SAN
-
YUL
5h 33mdirect
C$ 571Air Canada
Thu, 27 Aug - Sat, 5 Sep
Air Canada Logo
5:45 p.m. - 8:39 p.m.
YUL
-
SAN
5h 54mdirect
Air Canada Logo
7:00 a.m. - 3:33 p.m.
SAN
-
YUL
5h 33mdirect
C$ 574Air Canada
Mon, 16 Nov - Wed, 18 Nov
Air Canada Logo
8:10 p.m. - 12:00 p.m.
YUL
-
SAN
18h 50m
1 stop
Air Canada Logo
7:05 a.m. - 11:25 p.m.
SAN
-
YUL
13h 20m
2 stops
C$ 576Air Canada
Thu, 10 Sep - Mon, 14 Sep
Delta Logo
7:00 a.m. - 1:18 p.m.
YUL
-
SAN
9h 18m
1 stop
Delta Logo
6:20 a.m. - 5:38 p.m.
SAN
-
YUL
8h 18m
1 stop
C$ 579Delta
Thu, 12 Nov - Fri, 20 Nov
WestJet Logo
4:15 p.m. - 10:45 a.m.
YUL
-
SAN
21h 30m
1 stop
WestJet Logo
12:35 p.m. - 12:33 a.m.
SAN
-
YUL
32h 58m
2 stops
C$ 581WestJet
Sat, 24 Oct - Tue, 27 Oct
United Airlines Logo
6:10 a.m. - 11:25 a.m.
YUL
-
SAN
8h 15m
1 stop
United Airlines Logo
6:30 a.m. - 9:42 p.m.
SAN
-
YUL
12h 12m
2 stops
C$ 583United Airlines
Tue, 10 Nov - Sun, 22 Nov
Delta Logo
7:00 a.m. - 11:47 p.m.
YUL
-
SAN
19h 47m
2 stops
Delta Logo
10:30 p.m. - 12:15 p.m.
SAN
-
YUL
10h 45m
1 stop
C$ 584Delta
Sat, 14 Nov - Sun, 22 Nov
United Airlines Logo
9:15 a.m. - 5:15 p.m.
YUL
-
SAN
11h 00m
2 stops
United Airlines Logo
10:20 p.m. - 1:28 p.m.
SAN
-
YUL
12h 08m
1 stop
C$ 586United Airlines
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 November.

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 December, where tickets cost C$ 470 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is C$ 721 and C$ 709 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.

No, with an average price for the route of C$ 617, prices are generally cheapest when you fly direct.

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 3 weeks before departure, which saves you about 44% 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$ 331
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly and prices are also 24% 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 54m. 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 5 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Diego was C$ 331 for a one-way ticket and C$ 564 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$ 584 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of C$ 597 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$ 297 or less one-way and C$ 597 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.
7.8
DeltaOverall score based on 8452 reviews
8.1Boarding
7.8Entertainment
7.8Comfort
7.2Food
8.5Crew
Airline reviews

Crew was real good, flight was smooth and came in early.

10.0 ExcellentAnonymous, Jun 2026
DTW - SAN
Read more Delta reviews

Crew was real good, flight was smooth and came in early.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

Rough day of travel all the way around. Wrong info given to us multiple times and mistakes in their booking making our trip 10 hours longer than planned. I’m bummed because I fly Delta all the time and love them. Mistakes happen. Just bummed that this was a rare trip our whole family was traveling together.

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Was a great smooth flight from Detroit to San Diego.

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

They made us check our bag…. Even though there was plenty of space up top… and then proceeded to shatter by brand new luggage 😞

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Very nice and clean plane. Transit time between flights was tight though

So far so good but food and entertainment are not available for this flight

HORRIBLE WITH THEIR WEBSITE!!! WORST WEBSITE IN THE WHOLE AIRLINE INDUSTRY

Was a pain having to leave the plane and reboard but glad the plane was fixed

Connecting flights were poor,especially in Naples.our Lufthansa air bus was a joke.way too small for that long of a flight.no room at all.couldn’t even get out of the seats to move around or go to the bathrooms.we thought we were getting an actual air bus,double decker.i will never fly that long in a plane like that again.kind of misleading to call it an air bus.we actually had more room on our buses that we used.

For a 22 minute flight all you expect is for it to be safe and comfortable

Lost connnection had to stayON in Chicago Was a mess

Booked economy through United - air canada treated it as standby and was almost refused boarding.

The seat when "flat" was not flat and pad was too thin to cover it.

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

We are too tired and frustrated to comment politely at this point

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

The service and food needs to improve to catch up with other international flights

The flight crew was fantastic! Which the seats had a small TV.

also wi-fi never worked attendant said satellite coverage is spotty over water ..... but we were over land!

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

This time my flight was smooth and uneventful. They started boarding even earlier than it was scheduled. I was pleasantly surprised. Thank you!

Boarding was a mess - the agent basically called every group in rapid succession, so there was no organization at all. The economy seats are a joke, and main cabin extra seats were sold out when I purchased my flight. As such, I was locked in the same position for four hours. Being 6’6”, it was impossible to get my bag out from under the seat in front of me, and I couldn’t have used my laptop even if my bag were accessible due to the minuscule seat pitch. Also the wifi was broken. American is a joke - can’t wait until they merge with Spirit.

The flight was smooth, the plane was spacious and clean, the staff was kind and the food was decent.

Flight crew was great, and even the crew for checking bags! I had a question for a friend of mine flying tomorrow and the man I talked to was awesome and answered my questions and looked up things for me when he didn’t have to! I was able to give her current & accurate info for her flight and she was so appreciative too!!

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

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

Great flight. Only complaint is it took over an hour for my luggage to get to the carousel on the return to LAX That was irritating

Mixed experienced. Nice staff. Spacious 787 better than cramped Airbus, though my seat was broken. The bad: Way overpriced ticket and charged for food despite 6 hr flight.

We paid $110 for more leg room. My traveling companion’s knees were right up against the seat in front. Where was more leg room. We feel ripped off. Food,,,there wasn’t any not even a bag of pretzels. As a result, there was very little service.

A 6 hour flt and only offered water twice the entire flight. A small bag of flavored pretzels was offered as well w/ the first round of beverages. The landing was ‘hot’ but I arrived safely. The plane was nice and new and the seats were roomie. I’m use to warmer more generous hospitality but all and all I’d fly with them again but I’d bring more water and snacks.

No food for a 6 hours flight! Plus very expensive to buy ! Sit uncomfortable! Awful!!!

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

Information on your arrival and departure airports