YUL - SJU

$157 Find Cheap Flights from Montreal to San Juan

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 Juan departing on 11/15. 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 Juan Luis Munoz Marin Intl Airport

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

Cheapest round-trip
$289
Overall average: $537
United Airlines
Mon 3/23Wed 4/8
YUL - SJU • 1 stop
Cheapest non-stop
$485
Air Transat
Sun 3/29Sun 4/5
YUL - SJU • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
Air Transat's Club Class offers wider seats for comfort.
At YUL, pre-clear US customs before departure.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
United Airlines
Cheapest • from $289 (round-trip)
Air Transat
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 28% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
1 day a week
There are direct flights from Montreal to San Juan 1 day a week: Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
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We hope you love your trip to San Juan!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Montreal to San Juan (YUL-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to San Juan 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 Juan

Mon, Mar 23 - Wed, Apr 8
United Airlines Logo
3:00 pm - 11:36 pmYUL-SJU
8h 36m1 stop
United Airlines Logo
7:25 am - 5:42 pmSJU-YUL
10h 17m1 stop
$289United Airlines
Find Deal
Wed, Nov 12 - Tue, Nov 18
United Airlines Logo
3:00 pm - 12:36 amYUL-SJU
8h 36m1 stop
United Airlines Logo
8:30 am - 3:16 pmSJU-YUL
7h 46m1 stop
$321United Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
American Airlines Logo
7:14 am - 9:24 pmYUL-SJU
13h 10m1 stop
American Airlines Logo
6:25 am - 10:59 pmSJU-YUL
17h 34m1 stop
$341American Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
American Airlines Logo
7:30 am - 9:24 pmYUL-SJU
12h 54m2 stops
American Airlines Logo
6:25 am - 12:15 pmSJU-YUL
6h 50m1 stop
$346American Airlines
Find Deal
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
8:00 am - 1:30 pmYUL-SJU
4h 30mnonstop
Multiple Airlines Logo
4:06 pm - 12:15 amSJU-YUL
9h 09m1 stop
$352Multiple Airlines
Find Deal
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
8:00 am - 1:30 pmYUL-SJU
4h 30mnonstop
Multiple Airlines Logo
4:06 pm - 12:15 amSJU-YUL
9h 09m1 stop
$361Multiple Airlines
Find Deal
Tue, Oct 28 - Wed, Nov 5
Air Canada Logo
11:10 am - 9:22 pmYUL-SJU
10h 12m2 stops
Air Canada Logo
8:10 am - 3:57 pmSJU-YUL
8h 47m1 stop
$417Air Canada
Find Deal
Tue, Oct 28 - Wed, Nov 5
Air Canada Logo
11:10 am - 9:22 pmYUL-SJU
10h 12m2 stops
Air Canada Logo
2:20 pm - 12:32 amSJU-YUL
11h 12m2 stops
$423Air Canada
Find Deal
Sun, Mar 29 - Sun, Apr 5
Air Transat Logo
8:00 am - 12:30 pmYUL-SJU
4h 30mnonstop
Air Transat Logo
1:35 pm - 6:15 pmSJU-YUL
4h 40mnonstop
$485Air Transat
Find Deal
Sun, Mar 22 - Sun, Apr 5
Air Transat Logo
8:00 am - 12:30 pmYUL-SJU
4h 30mnonstop
Air Transat Logo
1:35 pm - 6:15 pmSJU-YUL
4h 40mnonstop
$489Air Transat
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from Montreal to San Juan 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 Juan?

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

If your flying dates are flexible, you should consider flying to San Juan on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from Montreal to San Juan. For your return ticket, we recommend flying on a Wednesday and avoiding Thursdays for the best deals.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to San Juan Luis Munoz Marin Intl Airport?

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 Juan Luis Munoz Marin Intl Airport, 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 Juan Luis Munoz Marin Intl Airport is April, where tickets cost $377 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $818 and $581 respectively.

Can I save money by flying with a layover from Montreal Pierre Elliott Trudeau Intl Airport to San Juan Luis Munoz Marin Intl Airport?

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 $362, 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 Juan Luis Munoz Marin Intl Airport?

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 Juan Luis Munoz Marin Intl Airport, 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 Juan Luis Munoz Marin Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Montreal to San Juan

 
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 Transat

Air Transat's Club Class offers wider seats and more legroom, ideal for comfort-focused travelers.


Air Transat allows free seat assignments for children aged 2-13, ensuring family seating together.

Air Canada

Air Canada offers priority boarding for Business Class and elite status passengers, enhancing travel convenience.


Air Canada provides Wi-Fi on select flights, with free messaging for Aeroplan members.

Read more about Air Canadaby Stefanie Waldek
Airports
YUL

At YUL, pre-clear US customs before departure. Arrive early to allow extra time for this process, especially during holidays.

Read more about YULby Brandon Schultz
SJU

For quick access to San Juan, consider a taxi or Uber. It's a short ride to Old San Juan or Condado, avoiding parking hassles.

Read more about SJUby Gabriel Leigh
Our travel experts
John Walton

John Walton

Expert on Air Transat

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada

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

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
Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more

Good to know

Low seasonJune
Cheapest flight$157
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Montreal to San Juan

When to book flights from Montreal to San Juan

Are your dates flexible? Find out the best times to travel from Montreal to San Juan 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 Juan flights

  • What is the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to San Juan Luis Munoz Marin Intl Airport was $157 for a one-way ticket and $289 for a round-trip.

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

    Yes

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

    Air Canada, and JetBlue offer inflight Wi-Fi service on the Montreal to San Juan flight route.

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

    The Airbus A321neo is the aircraft model that flies most regularly on the Montreal to San Juan flight route.

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

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

  • Which is the best airline for flights from Montreal to San Juan, Air Transat or United Airlines?

    The two airlines most popular with KAYAK users for flights from Montreal to San Juan are Air Transat and United Airlines. With an average price for the route of $663 and an overall rating of 7.7, Air Transat is the most popular choice. United Airlines is also a great choice for the route, with an average price of $446 and an overall rating of 7.4.

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

    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 Juan.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan 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 Juan?

    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 Juan with an airline and back to Montreal with another airline. Booking your flights between Montreal and SJU 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 Juan?

    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 Juan 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 Juan Luis Munoz Marin Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $370 or less one-way.

Prefer to fly direct from Montreal to San Juan?

 
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 Juan Luis Munoz Marin Intl.
Find which airlines fly direct from Montreal Pierre Elliott Trudeau Intl Airport to San Juan Luis Munoz Marin Intl Airport, which days they fly and book direct flights.

Direct departures

Montreal Pierre Elliott Trudeau Intl to San Juan Luis Munoz Marin Intl

Sunday

Air Canada, Air Transat

Air Canada, Air Transat

See more direct flights

Direct returns

San Juan Luis Munoz Marin Intl to Montreal Pierre Elliott Trudeau Intl

Sunday

Air Canada, Air Transat

Air Canada, Air Transat

See more direct flights

Reviews of the top 5 airlines serving from Montreal to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Montreal to San Juan. 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 Juan? 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.
7.7
Air TransatOverall score based on 455 reviews
7.0Entertainment
8.4Crew
6.7Food
7.3Comfort
7.9Boarding
Airline reviews

Porter airlines was good. I didn't have the best experience when booking through airfare assist however, as I got no final confirmation from them that the flight was booked until I called them. Even then, the confirmation code they gave me was incorrect and couldn't be used for check in. On a positive note airfare assist was actually picked up the phone relatively quickly when calling

6.0 GoodDineth, Oct 2025YEG - YOW
Read more Air Transat reviews

Porter airlines was good. I didn't have the best experience when booking through airfare assist however, as I got no final confirmation from them that the flight was booked until I called them. Even then, the confirmation code they gave me was incorrect and couldn't be used for check in. On a positive note airfare assist was actually picked up the phone relatively quickly when calling

The flight crew were very good, polite, and professional. Unfortunately, the rest of the experience left much to be desired. The food was extremely bland—almost tasteless. We chose the non vegetarian .The lasagna was just plain pasta with a tiny garnish and no seasoning. It felt like eating starch only, The bigger issue was with luggage and space. We boarded with three tickets, and while the seats in front of us were nearly empty, all the overhead compartments had already been filled by passengers boarding to the back. This left us and many others with no overhead storage for our carry-ons. Our bags couldn’t fit well under the seats either, which meant we lost the little legroom we had. The result was a horrible, cramped experience—sore knees, no space to stretch, and no way to rest or sleep comfortably. According to the crew this was a rather normal thing. It is obviously normal that people board with handbag and carry on but they should be only allowed to use their overhead compartment and under their seat not the way it is managed that all the spaces in the front of the plane being occupied by the people sitting way back in the plane.

Nice complete meal included and great services. Plus the plane was very clean.

Everything was horrible. On the day of my departure, I was denied check-in and boarding because my reservation only showed one of my last names, while my passport contains both. This minor discrepancy could have been easily corrected, but I was informed that no adjustment could be made. As a result, I lost not only my outbound flight but also my return flight and had to purchase a new ticket at a significantly higher cost.

This has been the worst experience I’ve ever had. Basically, I lost my round-trip tickets because one of my last names was missing, and you didn’t allow me to correct it. I had to purchase a full ticket again. Once I get home, I will start legal proceedings against you.

The crew were polite and courteous. The Pilot did an excellent landing. It was very smooth and gentle. My only regret is that I was charged twice for my luggage . The attendant gave me no receipt . I didn't realize until I was about to board. How can this be resolved? Thank you.

Very smooth flights Toronto to Rome and return. Crews were great, food was fine but very narrow seats and limited leg room. Aisle seats on our return helped with a bit more space.

YUL AIRPORT is the worst. 1 Hr to Get out of the plane, 1 Hr To Cross the Border. 1Hr waiting to be pick up curbside. Trafic is ubeliveble.

It’s ok just the boarding point is far too far

Check in slow even though completed online check in, there was no bag drop available so had to query for 90mins as only 2 staff on desks.

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

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

The experience was great, the crew was very polite and hospitable. I will definitely make if my go to airlines.

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

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

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

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

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

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

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

Because the plane was 90 degrees F, they would not let us board. I wish they had, because it meant we were delayed. It's Texas, of course it's hot. We would have survived.

The flight was on time and crew were nice, seats were tight and there was entertainment available

Good service, friendly staff. Food was average for airlines and the seats were small.

Worst flight ever. I was suppose to have a 3 1/2 hour layover in Chicago but got to the gate 4 minutes before boarding.

Was not able to watch most shows on the entertainment site. They would not load

The plane was broken so we had to change planes.

The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.

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

They cancelled my flight and downgraded me to economy and only gave me $250 for the downgrade

Very good experience. Great cabin crew. Much better than expected

There is no snack and nit much that would be considered gluten free in yiur food selections. One of your snacks should be a gluten free cookie or small bar etc. maybe it was me but I didn’t see any free movies just internet connection and YouTube .

What do you expect from a Dash 8 plane? No seats really comfortable.

Delayed 8 hours, This is the 2nd time in a month that my flight was not on time.

The snacks could have been better, and maybe some warm drinks instead of just water cause it was very very cold.

Do not fly on WestJet if you have a connection. It failed to integrate with my connecting Delta flight and I almost missed it.

The experience was good just the upcharge of over a hundred dollars was not cool.

No internet, not even westjet connect makes for a boring flight

Our first flight from LAX to Winnipeg was changed but you never informed us at all. It went from a nonstop flight to a stay at Calgary. This impacted our trip negatively as we arrived much later than we planned to. Our returning flight was horrible. The flight was delayed 6 hours!! And we were NOT going to wait that long. The only way we got on our original flight was running there. However all of our suitcases were now coming on the delayed flight. It was the worst experience we ever had flying. I want my money back.

Typical Canadian airline experience. Charger and tray were broken, food was poor quality, and yet you're still paying more than flights with equal to better service than elsewhere globally.

The service to/from the airport/plane (wheelchair assistance for my mother in law) was exceptional. The staff was super friendly and courteous. The staff on the plane was also very nice. The food quality could have been better (mashed chicken sandwich).

The flight was great. I like it when airline capitalism give you information. For someone with flight jitters it really helps. And this captain was very cheery and reassuring. I had trouble understanding the head flight attendant because she spoke very fast. But overall staff were very helpful and kind.

1 hour late No hot drinks No restroom in the back of the plane

I did the posting for 45 years. I just retired. I’m the only seat in the plane but didn’t have any phone. It has to be mine so imagine seeing 13 hours on the flat seat with a belt that didn’t close all the rest was OK.

I had wonderful wheelchair assistance through the Montreal airport onto the flight. Air Canada was excellent in this both at the Fredericton airport and the Montreal one where an attendant helped us through customs as well as transport and baggage security.

Flight was cancelled last minute due to Air Canada strike leaving us stranded and having to stressfully find a way home that cost hundreds of dollars in excess cost added to the trip. Having just experienced our mother's funeral service, this was not a good way to end our trip.

They went on strike before time and screwed us big time. Which is not fair. We respect their planned strike but why they went on strike ahead of time ??? Poor garbage management

Premium Economy is best if you can't get upgraded to Business.. Not as good to sleep for red-eye flights, but does the job. More space for your legs and arms.. The food is also better and the service is almost like business.

Awful. As we were boarding we were told the flight was cancelled. Then had to stand in a queue for 3 hours to talk to someone at the kiosk of Air Canada. They were not helpful at all. No empathy. My issue is not with them striking but the total disregard for the chaos and distress late notice caused. No thought on the impact this has caused.

Horrible, experience, 5 hours delay, they changed gates 3 times, the last one we had to wait for 1::30 hre for the door to open to get to that gate. 0 apologies from Air Canada, they don’t care at all about their passengers

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

Information on your arrival and departure airports

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