YUL - SJU

$192 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 9/18. 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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Flights 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

Tue, Nov 18 - Mon, Dec 8
United Airlines Logo
7:00 am - 2:40 pmYUL-SJU
6h 40m1 stop
United Airlines Logo
8:30 am - 3:16 pmSJU-YUL
7h 46m1 stop
$284United Airlines
Find Deal
Tue, Oct 14 - Wed, Oct 22
United Airlines Logo
6:00 am - 1:45 pmYUL-SJU
7h 45m1 stop
United Airlines Logo
1:30 pm - 10:06 pmSJU-YUL
8h 36m1 stop
$285United Airlines
Find Deal
Thu, Sep 25 - Wed, Oct 1
American Airlines Logo
12:30 pm - 11:37 pmYUL-SJU
11h 07m2 stops
American Airlines Logo
1:36 pm - 9:58 amSJU-YUL
20h 22m2 stops
$344American Airlines
Find Deal
Thu, Sep 25 - Wed, Oct 1
American Airlines Logo
12:30 pm - 11:37 pmYUL-SJU
11h 07m2 stops
American Airlines Logo
3:55 pm - 9:58 amSJU-YUL
18h 03m2 stops
$346American Airlines
Find Deal
Thu, Jul 17 - Thu, Jul 24
 Logo
1:10 pm - 11:32 amYUL-SJU
22h 22m2 stops
 Logo
11:59 pm - 12:25 pmSJU-YUL
12h 26m1 stop
Thu, Jul 17 - Thu, Jul 24
 Logo
1:10 pm - 11:32 amYUL-SJU
22h 22m2 stops
 Logo
3:50 pm - 5:55 pmSJU-YUL
26h 05m2 stops
Tue, Oct 14 - Sat, Oct 18
Air Canada Logo
4:30 pm - 12:00 pmYUL-SJU
19h 30m2 stops
Air Canada Logo
1:05 am - 10:35 amSJU-YUL
9h 30m1 stop
$517Air Canada
Find Deal
Thu, Sep 25 - Tue, Sep 30
Air Canada Logo
9:45 am - 2:44 pmYUL-SJU
28h 59m1 stop
Air Canada Logo
1:05 am - 10:35 amSJU-YUL
9h 30m1 stop
$533Air Canada
Find Deal
Wed, Sep 10 - Wed, Sep 24
WestJet Logo
6:45 am - 10:07 pmYUL-SJU
15h 22m2 stops
WestJet Logo
2:28 pm - 11:53 pmSJU-YUL
9h 25m1 stop
$539WestJet
Find Deal
Fri, Jul 18 - Fri, Aug 1
WestJet Logo
6:45 am - 10:23 pmYUL-SJU
15h 38m2 stops
WestJet Logo
1:06 pm - 11:55 pmSJU-YUL
10h 49m1 stop
$540WestJet
Find Deal
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
Useful Info

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, Monday 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 $394 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $788 and $575 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.

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 $409 on average.

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 3 weeks before departure.

Good to know

Low seasonJune
High seasonJanuary
Cheapest flight$192
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 17% 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 $192 for a one-way ticket and $284 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, Star Alliance, and SkyTeam are the airline alliances operating flights between Montreal and San Juan, with Star Alliance being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Montreal to San Juan are United Airlines and WestJet. With an average price for the route of $429 and an overall rating of 7.4, United Airlines is the most popular choice. WestJet is also a great choice for the route, with an average price of $638 and an overall rating of 7.2.

  • 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.

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.
7.8
Air TransatOverall score based on 398 reviews
7.4Comfort
8.5Crew
6.8Food
7.1Entertainment
7.9Boarding
Airline reviews

The flight and crew were good. Departure and arrival were timely. Check-in was professional and helpful in Malaga on return trip (same on outbound trip from Toronto). The ad before ach program was punishing - specifically for the internet/data service with the content creator that was showed twice in each ad pod. It was so annoying I made an effort to forget the name and would not use the service. Provide an opportunity to fast forward or skip the darn ads once they have been initially viewed.

8.0 ExcellentShazad, Jun 2025AGP - YUL
Read more Air Transat reviews

The flight and crew were good. Departure and arrival were timely. Check-in was professional and helpful in Malaga on return trip (same on outbound trip from Toronto). The ad before ach program was punishing - specifically for the internet/data service with the content creator that was showed twice in each ad pod. It was so annoying I made an effort to forget the name and would not use the service. Provide an opportunity to fast forward or skip the darn ads once they have been initially viewed.

Extra attention to kids, thank you, we appreciate! Perfect landing

Over the wing seat at emergency exit only downside people using lavatory have no respect and wait in the space

Flight delayed any hour and couple of big gate changes

The pilot came out and chatted with the passengers. He explained why there was a slight delay. The crew was excellent. Very helpful. I had to buy meals for my whole family and they were in different seats, so the crew had to deal with that. They were very pleasant and accommodating and did a great job!

We were unable to land in Liberia. It was not the airline’s fault, but we had to be diverted to SJO.

We had things stolen from our luggage, we also were refused an upgrade on a flight that was not full.

When we left, it wasn't Great . People were drinking heavily, very disrespectful Extremely loud, the entire trip. I think the crew members, should have get their attention. Coming back was great.

I sat in the club. The seeds were fantastic. The meal was great and Entertainment was good. The crew was fantastic. I recommend it to everybody.

The food was small portions and not fresh. I was seated at the back of the plane so by the time the cart approached me most of the food options were sold out. The cabin crew was fantastic however.

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.

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

headphone jack didnt work for the first flight and not much variety

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

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

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

Uncomfortable seats and flight attendant was rude as she insisted on waking up my husband to ask him if he wanted a drink. When he said that he was sleeping, she replied “without an attitude “. He was seated at 8c

No food/snack served during the flight. Crew wasn’t interested at all. Flew American First but flying low cost with Ryanair is even better

Flight was delayed taking off over 2 hours. Original plane was taken out of service and replaced. They didn’t tell us they were replacing plane until after original takeoff time had past. No power on new plane to charge devices. When eventually landing at destination no gate was available waited 1 hour for new gate. No Americans finest hour.

One of the best flights I’ve had. So smooth.

AA can't control the weather. But the airplane was hot and stuffy while stuck on the runway with a broken entertainment system.

Flight delayed, missed connection, had to stay overnight. Next flight instead of our business class we were booked on the very back row. Second time this had happened in 2 months.

DO NOT BOOK THROUGH AMERICAN AIRLINES IF YOU HAVE ANY ADDITIONAL NEEDS. Great flight, crew etc. it wasn’t full so had space to stretch out Only downside was there was no GF option for my partner. We booked through American and it was a Qantas flight so despite contacting both airlines to confirm, she didn’t have a gluten free meal for the 16 hour flight (nor the flight in the other direction). The flight attendants did their best to accommodate but it was not super substantial.

The seats are totally uncomfortable making the flight less than pleasant. The cookies & pretzels were terrible!!!

Not the greatest experience everything was pretty mediocre. My seat was by the washroom in the aisle and was not located well as everyone past each other people were right in my seat and space.

Lots of overhead storage, good crew, good service, smooth landing.

Lots of overhead storage and a good crew and service.

The small prop plane was crowded and the overhead luggage storage is a smaller than on the jets. Other than that, the crew was good, the flight was on time and the landing was smooth.

There was a medical emergency that the crew handled very well. There was no “entertainment” of any sort-no movie/music/whatever. Food was typical of airlines: mediocre.

On time. Friendly and efficient staff at check in and flight crew.

Terrible decision to take a night flight. Not enough time to sleep and premium seat has no foot rest ao couldn’t get comfortable!

Late departure, so I missed connection in Detroit. But Delta gave me a great hotel & breakfast. Just sorry I could not get anything from my checked baggage.

Crew was friendly. Lost our luggage and told us it’d be in later in the evening of the day we returned. It was not. Still after 5 days have not received it.

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.

Service Director cut all cabin lights and window screens defaulted to dark, but it was an afternoon flight going west. I spent hours trying to see what was reading as reading lights weren't working either. What the hell.

The food could have been better. The flight attendant was the friendliest and most helpful I have ever had.

Almost no food given on a 5-hour flight (only a cookie, which is almost a joke). Boarding was a mess (as always, in Montreal boarding by zones is chaotic and the lines are a total mess). The entertainment system was old and with a limited selection.

Very nice comfortable spacy Airbus 321. I liked the offer of food on the Bistro menu. The idea is very good to pay and cost was low.

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.

Staff was very attentive! Food was good for premium economy airplane food. Clearly an older plane - seat back had to be pulled up manually after being reclined.

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

No frills very ordinary, charged me twice to book my seat assignment will.need to complain for reimbursement.

Everything ok, but it was a lot of turbulence during the flight.

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

Information on your arrival and departure airports

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