YUL - SAN

$136 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 8/27. 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

Wed, Aug 13 - Sun, Aug 17
WestJet Logo
7:00 am - 1:20 pmYUL-SAN
9h 20m1 stop
WestJet Logo
2:05 pm - 12:27 amSAN-YUL
31h 22m2 stops
$271WestJet
Find Deal
Thu, Jul 10 - Mon, Jul 14
American Airlines Logo
3:40 pm - 12:09 amYUL-SAN
11h 29m1 stop
American Airlines Logo
4:29 pm - 2:45 pmSAN-YUL
19h 16m1 stop
$272American Airlines
Find Deal
Wed, Aug 13 - Sun, Aug 17
United Airlines Logo
9:15 am - 8:40 pmYUL-SAN
14h 25m1 stop
United Airlines Logo
10:30 pm - 1:09 pmSAN-YUL
11h 39m1 stop
$273United Airlines
Find Deal
Mon, Jun 30 - Thu, Jul 3
United Airlines Logo
6:30 pm - 12:15 amYUL-SAN
8h 45m1 stop
United Airlines Logo
6:41 pm - 3:00 pmSAN-YUL
17h 19m2 stops
$276United Airlines
Find Deal
Wed, Aug 13 - Sun, Aug 17
Air Canada Logo
7:30 am - 4:13 pmYUL-SAN
11h 43m1 stop
Air Canada Logo
8:10 am - 4:39 pmSAN-YUL
5h 29mnonstop
$279Air Canada
Find Deal
Thu, Sep 18 - Sun, Sep 21
Air Canada Logo
4:45 pm - 7:35 pmYUL-SAN
5h 50mnonstop
Air Canada Logo
8:10 am - 4:40 pmSAN-YUL
5h 30mnonstop
$281Air Canada
Find Deal
Fri, Aug 15 - Wed, Aug 20
Delta Logo
6:00 am - 1:53 pmYUL-SAN
10h 53m1 stop
Delta Logo
8:00 am - 11:53 pmSAN-YUL
12h 53m1 stop
$338Delta
Find Deal
Mon, Jul 14 - Fri, Jul 18
 Logo
3:10 pm - 9:55 amYUL-SAN
21h 45m2 stops
 Logo
5:13 pm - 9:02 amSAN-YUL
12h 49m2 stops
Sat, Aug 16 - Fri, Aug 22
Delta Logo
6:00 am - 1:58 pmYUL-SAN
10h 58m1 stop
Delta Logo
8:00 am - 11:53 pmSAN-YUL
12h 53m1 stop
$350Delta
Find Deal
Mon, Aug 18 - Sun, Aug 24
 Logo
8:10 am - 8:52 pmYUL-SAN
15h 42m2 stops
 Logo
11:15 am - 12:43 amSAN-YUL
10h 28m1 stop
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
Useful Info

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 Thursday is the most expensive. Flying from San Diego back to Montreal, the best deals are generally found on Wednesday, 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 December and November, where the average cost of round-trip tickets is $670 and $484 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 $247 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. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonNovember
High seasonJuly
Cheapest flight$136
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 3% 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 $136 for a one-way ticket and $271 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 $500 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 $170 or less one-way and $257 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

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

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 3 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 7964 reviews
7.3Food
8.5Crew
7.9Comfort
8.2Boarding
7.9Entertainment
Airline reviews

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.

2.0 MediocreAnonymous, Jun 2025BOS - LAX
Read more Delta reviews

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.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Its good expeince but in enternteiment please be like you tube the music i like or movie

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

I needed to make changes to my flights. When I called customer service, they assisted me with care professionalism.

A bit rush for transit. Food and entertainment are not available

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

Wonderful and fast TSA checkpoint. The line was fast and our gate was close by

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.

Good, only discomfort was consistent turbulence through the 3 hour flight. Not sure if in companies control though.

Terrible. Flight was delayed for hours and we ended up arriving at our home at 4am after 20+ hours flying.

Flight was cancelled around 45 -1hr minutes before scheduled take off time due to mechanical issues we hadn’t even boarded yet. Had to reroute to Orlando so someone had to drive 2 1/2 to come and get me… the alternative was go through Toronto and get a later flight which didn’t work for my schedule. The flight attendants barely gave anyone a smile…not the same as flying when a client/passenger was important. Very disappointed. By the way I have never ever made a complaint online about any company with feedback…even when I probably should have. The only good experience was the boarding desk associates who were very professional and got me on another flight with my checked bags…very nice team.

Actually as my experience with air Canada from Canada to Newark it was crazy for me because it was a lot of delays which for me it shouldn’t be like that, but I was able to coup with it so that was my experience I hope next time they will do good on that thanks.

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.

Very smooth flight and the crew members were very welcoming.

Super. Planes were clean. Flights were on time. boarding was smooth. Flight attendants were professional.

ground crew at Casablanca as well as at Montreal was not helpful at all. specially at Montreal airport, very rude .

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

Information on your arrival and departure airports

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