YUL - SAN

$168 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 9/13. 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

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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Flights 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

Thu, Sep 11 - Tue, Sep 16
Air Canada Logo
5:00 am - 11:31 amYUL-SAN
9h 31m1 stop
Air Canada Logo
12:25 pm - 12:40 amSAN-YUL
9h 15m1 stop
$269Air Canada
Find Deal
Tue, Sep 23 - Tue, Sep 30
Air Canada Logo
6:00 am - 11:31 amYUL-SAN
8h 31m1 stop
Air Canada Logo
12:25 pm - 12:40 amSAN-YUL
9h 15m1 stop
$270Air Canada
Find Deal
Thu, Aug 28 - Sun, Aug 31
WestJet Logo
8:10 am - 12:09 pmYUL-SAN
30h 59m1 stop
WestJet Logo
1:00 pm - 7:08 amSAN-YUL
15h 08m1 stop
$315WestJet
Find Deal
Fri, Aug 22 - Wed, Aug 27
United Airlines Logo
8:30 am - 5:59 pmYUL-SAN
12h 29m2 stops
United Airlines Logo
7:00 am - 11:26 pmSAN-YUL
13h 26m1 stop
$322United Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
United Airlines Logo
6:15 am - 1:40 pmYUL-SAN
10h 25m2 stops
United Airlines Logo
10:30 pm - 11:58 amSAN-YUL
10h 28m1 stop
$323United Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
Delta Logo
6:00 am - 10:08 amYUL-SAN
7h 08m1 stop
Delta Logo
10:40 pm - 11:58 amSAN-YUL
10h 18m1 stop
$324Delta
Find Deal
Sat, Aug 30 - Sat, Sep 6
Delta Logo
12:55 pm - 6:01 pmYUL-SAN
8h 06m1 stop
Delta Logo
10:37 am - 11:53 pmSAN-YUL
10h 16m1 stop
$343Delta
Find Deal
Sat, Aug 30 - Sat, Sep 6
American Airlines Logo
7:50 am - 3:35 pmYUL-SAN
10h 45m2 stops
American Airlines Logo
7:00 am - 10:32 pmSAN-YUL
12h 32m1 stop
$353American Airlines
Find Deal
Sat, Aug 30 - Sat, Sep 6
American Airlines Logo
7:29 am - 3:25 pmYUL-SAN
10h 56m2 stops
American Airlines Logo
6:20 am - 10:32 pmSAN-YUL
13h 12m2 stops
$359American Airlines
Find Deal
Sun, Sep 14 - Sun, Sep 21
WestJet Logo
7:00 am - 12:08 pmYUL-SAN
32h 08m2 stops
WestJet Logo
1:00 pm - 7:07 amSAN-YUL
15h 07m1 stop
$385WestJet
Find Deal
Expert advice

Expert advice for your flight from Montreal to San Diego

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Air Canada

Air Canada's Preferred Economy seats offer up to 4 extra inches of legroom.


Air Canada offers live TV on some North American flights.

Read more about Air Canadaby Stefanie Waldek
United Airlines

United's Economy Plus offers up to 6 inches more legroom than standard economy seats.


Purchase Priority Boarding to ensure overhead bin space, placing you in Zone 2.

Airports
YUL

At YUL, pre-clear US customs before departure. Arrive early, as this process can take 20-30 minutes, plus extra time during holidays.

Read more about YULby Brandon Schultz
SAN

For a quick, affordable ride from SAN, take the Route 992 bus. It runs every 15 minutes to Downtown San Diego from 5 am to midnight.

Read more about SANby Brandon Schultz
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada and United Airlines

Stefanie Waldek

Stefanie Waldek

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.

Read more
Brandon Schultz

Brandon Schultz

Expert on YUL and SAN

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
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.

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, Friday is the cheapest day to fly on average and Saturday is the most expensive. Flying from San Diego back to Montreal, the best deals are generally found on Tuesday, with Saturday 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 $292 (return) on average. On the other hand, the most expensive months are February and November, where the average cost of round-trip tickets is $455 and $440 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 1 stop layover the cheapest option at $343 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 2 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$168
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 11% 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

  • 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 $168 for a one-way ticket and $269 for a round-trip.

  • Do I need a passport to fly between Montreal and San Diego?

    A passport is required to fly from Montreal to San Diego.

  • 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?

    Star Alliance is the only airline alliance operating flights between Montreal and San Diego.

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

    There are nonstop flights from Montreal to San Diego on a daily basis.

  • 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 $407 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $389 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 travelers 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. Booking your flights between Montreal and SAN can sometimes prove cheaper using this method.

  • 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 $193 or less one-way and $515 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, United Airlines

Air Canada, United Airlines

Tuesday

Air Canada, United Airlines

Air Canada, United Airlines

Wednesday

Air Canada, United Airlines

Air Canada, United Airlines

Thursday

Air Canada, United Airlines

Air Canada, United Airlines

Friday

Air Canada, United Airlines

Air Canada, United Airlines

Saturday

Air Canada, United Airlines

Air Canada, United Airlines

Sunday

Air Canada, United Airlines

Air Canada, United Airlines

See more direct flights

Direct returns

San Diego to Montreal Pierre Elliott Trudeau Intl

Monday

Air Canada, United Airlines

Air Canada, United Airlines

Tuesday

Air Canada, United Airlines

Air Canada, United Airlines

Wednesday

Air Canada, United Airlines

Air Canada, United Airlines

Thursday

Air Canada, United Airlines

Air Canada, United Airlines

Friday

Air Canada, United Airlines

Air Canada, United Airlines

Saturday

Air Canada, United Airlines

Air Canada, United Airlines

Sunday

Air Canada, United Airlines

Air Canada, United Airlines

See more direct flights

Reviews of the top 4 airlines serving 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.
8.0
DeltaOverall score based on 7981 reviews
8.5Crew
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
Airline reviews

Food was surprisingly good but the WiFi was not great

8.0 ExcellentPrincess, Jul 2025SEA - LAX
Read more Delta reviews

Food was surprisingly good but the WiFi was not great

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

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.

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

I love the free WiFi!! Crew was nice. Bathroom was decent. First time flying delta in a long time and I enjoyed it. Will definitely look into booking with Delta more but I think Delta is a little more expensive than the other airlines.

I found the staff to not be very attentive at all. When paying for Business Class you expect a certain type of service and that was not found. They were almost rude even

Ok. Get a different kosher caterer. The food was odd.

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

I really enjoyed flying with United airlines amazing experience , good customer service and great food

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

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.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

I flew Business Class. Rory, one of the Cabin stewards, was attentive, explained the menu, provided appropriate drinks. was

A cookie and a soda, packed like sardines, will never be a positive experience. Also, boarded a 5:30 flight at 7:45pm

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Long 5 hour and 45 min flight and only one drink service and cookie snack

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

My return flight experience was one of the worst times I have had traveling anywhere this year. Not because of the flight. It was because there was not enough time allocated to deplane, go through U.S. Customs and U.S. Security to get to the gate for the connecting flight to Boston which I missed, There was well less than an hour between my landing in Montreal from Prince Edward Island to my connecting gate. I even called Air Canada on the morning of my return and noted my concern over the short layover time, not more that 45 minutes. The initial flight was four minutes late. I was seated in the rear of the first aircraft, and it took at least 20 minutes to deplane. The U.S. Customs was a considerable distance from the gate at which we landed. The need for double security seemed unnecessary and redundant. The distance from the security to my gate was again fairly great, and the wrong gate number was listed on my boarding pass. The agent I approached at the flight that was going to Newark, New Jersey was too busy to answer my question as to what gate was for Boston. When I got to the right gate, they had just closed the door to the aircraft even though I arrived a minute late. If I knew the distance to Customs and from Security to the gate, I would have asked for a seat on the next available flight which was 4:30 pm. When I made my call at 6:00AM that morning. When I asked the agent at the Boston gate, he said that the 4:30 flight was already “OVERBOOKED!” I was put on an 8:30 PM flight and didn’t get home until MIDNIGHT. I then had to care for a barnful of hungry animals and didn’t get to bed until 2:00 AM.

From Montreal to Cincinnati the flight was perfect! Flight free and everyone was perfect and a pleasure to travel with. But from Casablanca to Montreal the flight crew were quite cold, unhelpful, also seemed to scold many passengers instead of simply educating or instructing them. There were a couple for sure I could describe but not name… i was really shocked bc my experience w air Canada is typically a good one at the very least. It seemed something was very much so I’m the air w the crew. The two older lady crew members and the male were amazing but the younger lady crew members w the exception of one were very clique-y and snarky, sassy

Seating wasn’t too cramped; I don’t understand how luggage bins get full if there are enough for each person. Shouldn’t there be room for the designated carry-on and personal item for each passenger at their seat? THEN, IF for some reason extra room is available for someone who prefers it, then shifts can occur. I’m simply saying it seems that I should have primary access to the storage bin at my seat and underneath in front of me. It was suggested that I go to the back of the plane to store my carry-on when I paid to have access to the first seat after 1st class. The additional stress and inconvenience could be avoided and I think all passengers and flight crew are interested in guidelines that are fair, clear, and reduce tension.

The flight was delayed for 2 hrs. We were changed to a smaller plane, which was shaking a lot.

Flight got canceled last minute and rescheduled 3 days later, as if we do not have jobs and children to return to. 5+ hours on hold with customer support with no answer. We booked a different airline and spent 3x as much to escape Montreal bc of Air Canada. Still haven’t heard from them. Boooo

Took off on-time and staff was very nice. Got stuck on tarmac at ATL due to storms, but staff was still wonderful even though they were working and not getting paid.

The plane was filthy!!!! There were empty food wrappers in the pockets and worst of all a wad of hair where someone had obviously brushed their hair, cleaned out the brush and left the wad of hair in the pocket. It was the most disgusting thing I’ve ever seen!! The seats are so crammed together with NO leg room. The AC vent controllers do not adjust. I will likely not book another AC flight from Florida to Montreal.

Registered my luggage at 5pm. Arrived at JFK at 1:00 am. Worst trip ever. Never again

Air Canada never runs on time. You’re lucky if your flight is not cancelled or diverted. Worst airline in the world for gas lighting its customers.

Received email saying that there won’t be a seat back entertainment screen and inflight WiFi would be available. But no WiFi both ways. Say it in the email.

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

Information on your arrival and departure airports

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