YUL - SJU

$161 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 9/30. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Expert advice
Useful Info
Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from Montreal to San Juan

KAYAK's recommended round-trip deals from the most popular airlines that fly from Montreal to San Juan.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
6:00 am - 1:45 pmYUL-SJU
7h 45m1 stop
United Airlines Logo
1:25 pm - 10:06 pmSJU-YUL
8h 41m1 stop
$327United Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
United Airlines Logo
6:00 am - 1:45 pmYUL-SJU
7h 45m1 stop
United Airlines Logo
1:25 pm - 10:06 pmSJU-YUL
8h 41m1 stop
$334United Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
Delta Logo
6:00 am - 1:10 pmYUL-SJU
7h 10m1 stop
Delta Logo
2:39 pm - 11:57 pmSJU-YUL
9h 18m1 stop
$374Delta
Find Deal
Fri, Aug 29 - Fri, Sep 5
American Airlines Logo
2:35 pm - 11:15 amYUL-SJU
20h 40m2 stops
American Airlines Logo
1:55 pm - 9:51 amSJU-YUL
19h 56m2 stops
$384American Airlines
Find Deal
Thu, Sep 25 - Wed, Oct 1
American Airlines Logo
2:35 pm - 12:45 pmYUL-SJU
22h 10m2 stops
American Airlines Logo
1:55 pm - 9:51 amSJU-YUL
19h 56m2 stops
$424American Airlines
Find Deal
Thu, Sep 25 - Wed, Oct 1
Delta Logo
12:45 pm - 10:08 pmYUL-SJU
9h 23m1 stop
Delta Logo
7:30 am - 5:04 pmSJU-YUL
9h 34m1 stop
$442Delta
Find Deal
Thu, Sep 25 - Wed, Oct 1
WestJet Logo
7:00 am - 10:23 pmYUL-SJU
15h 23m1 stop
WestJet Logo
1:06 pm - 11:55 pmSJU-YUL
10h 49m1 stop
$557WestJet
Find Deal
Thu, Jul 31 - Thu, Aug 7
WestJet Logo
6:45 am - 10:23 pmYUL-SJU
15h 38m2 stops
WestJet Logo
1:06 pm - 11:55 pmSJU-YUL
10h 49m1 stop
$563WestJet
Find Deal
Thu, Jul 31 - Fri, Aug 8
Air Canada Logo
6:00 am - 11:57 pmYUL-SJU
17h 57m2 stops
Air Canada Logo
1:05 am - 1:09 pmSJU-YUL
12h 04m1 stop
$746Air Canada
Find Deal
Thu, Sep 25 - Tue, Sep 30
Air Canada Logo
6:00 am - 11:57 pmYUL-SJU
17h 57m2 stops
Air Canada Logo
1:05 am - 12:20 pmSJU-YUL
11h 15m2 stops
$753Air Canada
Find Deal
Thu, Sep 25 - Tue, Sep 30
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 your flight. Arrive early to allow extra time for this process.

Read more about YULby Brandon Schultz
SJU

For a quick ride to San Juan, consider taxis or Uber. Both are convenient and save you 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 Saturday 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 $388 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $780 and $586 respectively.

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 1 week before departure.

Good to know

Low seasonJune
High seasonJanuary
Cheapest flight$161
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 16% 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 $161 for a one-way ticket and $327 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?

    Star Alliance, SkyTeam, and oneworld 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 $479 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 $595 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.

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 385 reviews
7.1Entertainment
6.7Food
8.5Crew
7.4Comfort
7.9Boarding
Airline reviews

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

10.0 ExcellentSophia, Feb 2025YUL - FDF
Read more Air Transat reviews

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.

Great flight and crew. Food isn't free and neither are headphones...

We were in economy class but paid for option Plus which offer you an extra snack after take off, free earplugs & blanket. The crew were very attentive. The comfort however wasn’t great, hard to be comfortable in such restraint place. Wasn’t able to sleep through out the 7hrs flight and was exhausted upon arrival.

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

Plane 3 hours late. Missed connection. No help from gate staff. App horrible. Lost connection repeatedly. No service desk. Finally got help from young girl driving cart.

Not as good as expected Air Can needs to improve totally rated on internet as worst

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

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

Free wifi was available, but only some time, being at least 30 minutes into the flight. it would have been better that an announcement had been made about the delay.

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.

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

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

The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines

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.

My husband required a wheelchair to get to the airplane and the service he received was exemplary. Thank you.

Internet on both flights was sketchy. Thus in flight entertainment was non- existent on MN - Balrimote leg.

crew was great, wifi was very poor could not even load a youtube video

WestJet was able to re-book us to the next available flight at no charge when air traffic controller staffing shortage delayed our inbound flight

Our flight was delayed for almost 2 hours resulting in a rush to connect to our next flight

I am a tall woman and could not move my legs enough to reach down under the seat in front of me to retrieve anything I put down there. I sat in both aisle and window seats and felt extremely cramped. In the aisle seat, if the stewardess was heavy, it was impossible to pass, and she would knock my arm shoulder and thigh every time she went by. If I can avoid it, I will not be flying this airline again.

We never had an experience they canceled the flight and they did not offer us an alternative flight. I had to book one on my own expense. They offered us food voucher and we could not use them at the airport it kept saying not attached to an existing flight. The people at the counter were rude and cold and they did not care about our situation

It took 30 minutes to check in with the Westjet rep. They didn’t have enough seats and she needed to make a call… I am always “randomly” selected to be checked at security. Their “randomly “ selection system may need some updating. They treat people like criminals. It is not appropriate behavior.

Get our, as a group, skis on time to their destination. Have more attendants checking people in. There was only one. The line was a block long :( . Also flight change with 5-hour delay

Found the seats very crowded—too close together ! And waited a long time for our luggage All staff at both ends were excellent!!!

Crew was pleasant and efficient. The speaker system for instructions was hard to understand

My experience was poor with customer Services. Please consider flexibility with cancellation due to emergency health condition. Thank you.

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

Disappointed my flight was delayed to TO as i had a connection to make. Ran through the airport I made my flight but I initially had 1.5 hours to connect. Unnecessary stress!

From my experience, I see there is room for a greater mixture of cultures, for example, a mix of the nationality of cabin crews, food, music, food, etc.

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.

Delayed delayed delayed cancelled and all we got was $60 food or beverage Embarrassing I'd say

It was fine. There were a couple of mechanical delays prior to takeoff but it was overall a quick and pleasant flight.

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.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.