C$ 255 Find Cheap Flights from Montreal to Puerto Rico

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 Puerto Rico departing on 15/9. 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, 0 bags

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Cheap Flights from Montreal to Puerto Rico

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

Sat, 26 Sep - Sat, 3 Oct
United Airlines Logo
6:00 a.m. - 1:45 p.m.
YUL
-
SJU
7h 45m
1 stop
United Airlines Logo
1:25 p.m. - 10:06 p.m.
SJU
-
YUL
8h 41m
1 stop
C$ 408United Airlines
Sat, 21 Nov - Sat, 28 Nov
Air Canada Logo
8:15 a.m. - 2:05 p.m.
YUL
-
SJU
4h 50mdirect
Air Canada Logo
3:00 p.m. - 6:55 p.m.
SJU
-
YUL
4h 55mdirect
C$ 484Air Canada
Tue, 17 Nov - Thu, 26 Nov
United Airlines Logo
7:00 a.m. - 2:40 p.m.
YUL
-
SJU
6h 40m
1 stop
United Airlines Logo
8:30 a.m. - 3:02 p.m.
SJU
-
YUL
7h 32m
1 stop
C$ 488United Airlines
Sat, 21 Nov - Sat, 28 Nov
Air Canada Logo
8:10 p.m. - 2:25 p.m.
YUL
-
SJU
17h 15m
1 stop
Air Canada Logo
3:00 p.m. - 6:55 p.m.
SJU
-
YUL
4h 55mdirect
C$ 495Air Canada
Sat, 24 Oct - Sun, 1 Nov
Multiple Airlines Logo
9:30 p.m. - 1:25 p.m.
YUL
-
SJU
15h 55m
1 stop
Multiple Airlines Logo
4:00 p.m. - 12:15 a.m.
SJU
-
YUL
9h 15m
1 stop
C$ 496Multiple Airlines
Thu, 20 Aug - Sat, 29 Aug
American Airlines Logo
7:55 a.m. - 10:24 p.m.
YUL
-
SJU
14h 29m
1 stop
American Airlines Logo
12:55 a.m. - 11:43 a.m.
SJU
-
YUL
10h 48m
1 stop
C$ 522American Airlines
Tue, 17 Nov - Wed, 25 Nov
American Airlines Logo
7:30 a.m. - 11:47 p.m.
YUL
-
SJU
15h 17m
1 stop
American Airlines Logo
10:29 a.m. - 12:15 p.m.
SJU
-
YUL
26h 46m
2 stops
C$ 526American Airlines
Thu, 20 Aug - Sat, 29 Aug
American Airlines Logo
7:55 a.m. - 6:34 p.m.
YUL
-
SJU
10h 39m
2 stops
American Airlines Logo
12:55 a.m. - 11:43 a.m.
SJU
-
YUL
10h 48m
1 stop
C$ 527American Airlines
Sat, 22 Aug - Sat, 29 Aug
American Airlines Logo
7:55 a.m. - 11:43 p.m.
YUL
-
SJU
15h 48m
2 stops
American Airlines Logo
7:00 a.m. - 3:29 p.m.
SJU
-
YUL
8h 29m
1 stop
C$ 534American Airlines
Tue, 1 Sep - Tue, 8 Sep
Multiple Airlines Logo
3:25 p.m. - 11:57 a.m.
YUL
-
SJU
20h 32m
1 stop
Multiple Airlines Logo
4:30 p.m. - 12:20 a.m.
SJU
-
YUL
7h 50m
1 stop
C$ 541Multiple Airlines
Booking Insights

KAYAK's insights & trends for Montreal to Puerto Rico flights

Get data-powered insights and trends into flights from Montreal to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Montreal Pierre Elliott Trudeau Intl Airport to Puerto Rico flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Puerto Rico from Montreal Pierre Elliott Trudeau Intl Airport found in the last 5 days was to San Juan, at C$ 448 round-trip. The most popular route is from Montreal Pierre Elliott Trudeau Intl Airport (YUL) to San Juan Luis Munoz Marin Intl Airport (SJU), and the cheapest round-trip airline ticket found on this route in the last 5 days was C$ 448.

What is the cheapest time of day to fly to Puerto Rico?

The average price for all round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Puerto Rico depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Puerto Rico is generally in the morning, when round-trip flights cost C$ 849 on average. The most expensive time of day to fly to Puerto Rico is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 849.

Can I save money by flying with a layover from Montreal Pierre Elliott Trudeau Intl Airport to Puerto Rico?

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 C$ 529 on average.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Puerto Rico?

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 Puerto Rico, 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 Puerto Rico is May, when tickets cost C$ 165 (return) on average. On the other hand, the most expensive months are June and September, when the average cost of round-trip tickets is C$ 661 and C$ 394 respectively.

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Puerto Rico?

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 Puerto Rico, 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 a flight from Montreal Pierre Elliott Trudeau Intl Airport to Puerto Rico, you should book around 3 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flightC$ 255
Best time to beat the crowds (32% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.
Flight from Montreal to San Juan

FAQs - booking Puerto Rico flights

  • How does KAYAK find such low prices on flights from Montreal to Puerto Rico?

    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 Puerto Rico.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Montreal to Puerto Rico is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Montreal to Puerto Rico?

    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 from Montreal to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Montreal to Puerto Rico?

    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 from Montreal to Puerto Rico 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 flying from Montreal to Puerto Rico

 
Need help choosing which airline to fly with from Montreal to Puerto Rico? 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 555 reviews
7.3Comfort
7.9Boarding
6.8Food
8.5Crew
7.1Entertainment
Airline reviews

The dinner was bland and boring, but the economy seats were surprisingly comfortable. The flight was very packed.

6.0 GoodJanice, May 2026
YYZ - OPO
Read more Air Transat reviews

The dinner was bland and boring, but the economy seats were surprisingly comfortable. The flight was very packed.

Arm rests are too small and too close. No screens, movie selection was very limited and poor. Food is pretty much overpriced cheap convenience store food.

I didn't have any problems during my flight. My main issue is with airlines in general, they keep offering less and less every year, AirTransat is no different.

Crew was good, helpful. Flight ran on time.would have liked to take airtransat home to MTL. But the price back from San Jose Costa Rica was MUCH more expensive than the flight from MTL to San Jose c.r.

i was not able to take my flight because the information i needed to book my dog correctly was not provided

We are a senior couple (70+) and chose emergency exit seats so we would have 2 seats together and neither of us had to sit in a middle seat. My husband is type 1 diabetic on an insulin pump and I monitor his blood sugar levels. I am 5'9" and 250 lbs and found the seats extremely uncomfortable. Toward the end of the flight I developed diarrhea which lasted a full 24 hours.

They never sent me a confirmation to say my flight time had changed so I cut my holiday short by 6 hours Had to pay over 50 American for my luggage to be checked on the way home and that’s more that it cost on the way there. Arbitrarily charging more for the same thing when the passenger has no options is shady The cabin was an icebox going there and back, if all the passengers have their gloves on and their hoods up that should be an obvious sign to turn up the heat

We were treated well by the staff at the airport and on board aircraft. Delay was uncontrollable due to the weather. Had to wait for another gate as we were late landing in Fort Lauderdale.

I was supose to have a carrey on incluided for each passenger and they made me paid 75$ each at the gate.

Great crew and entertaining Captain. Seats were not what we had expected based on my booking but things worked out in the end. Of course, like all airlines these days not enough leg or elbow room.

Boarding was smooth and efficient. The only food was some pretzels, but it was a short flight. Not much to order if you were hungry.

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

Good but airlines getting smaller. I didn't like the meal but the service was fine. Flight was fine and luggage arrived. So good.

They were fast and I like how they used to entertainment system to play video about the safety.

Flight delayed. Connecting to night flight was stressful but made it. Jusr in time. Ran.88Flight was fine.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

Despite travelling ultra basic for the first time due to such increased rates we both managed with one bag each. Even boarding last wasn’t SO bad.

There was no food but a singular cookie for a flight that was over 5hours??? Yeah not fun I was starving and again super cramped plane and you guys need to get planes with screens too, WiFi is nice but common we need more

I loved the fact it was on time and it was a smooth flight to my destination.

I like that we landed safely and that my dog was safe underneath as well. Outside of that, we were 45 mins late for a direct flight that is 1.5 hours long. And 2 of my 3 bags did not make the flight. Only my dog was onboard.

Service was okay except attendant over served alcohol to passenger and passenger got tipsy and made me uncomfortable

Food was not inspired but was satisfying. Same for infotainment selection. You’d think business class would come with complimentary WiFi. Crew was uniformly attentive and excellent.

Could not make the flight. No one would help us at all

Decent entertainment although my wife was not offered any ear buds so couldn’t enjoy. Real issue was the appalling food. Presentation was unacceptable with cheap hard to open packaged bread, plastic cheese again in hard to open shrink wrap, main course in small cardboard box again hard to open, wooden utensils which lack substance making the whole experience poor. Surprised I didn’t cover myself or neighbour as the food moved all over the place. Breakfast calzone was dry and unappealing with the staff basically throwing them around. Very disappointed

Better movie options. More diligence on the size and amount of bags people bring on board. Lady across aisle from me had a bucket style bag that would only go so far under the seat in front of her. She was not told once that the whole bag is supposed to be under the seat. Crew is very hardworking however.

I didn’t have any food but my Prosecco hit the spot. We left on time and the crew was friendly.

I was traveling alone abroad for the first time and the staff was not helpful and rude at times.

Leave on time. We waited on the plane for hour hours and it was hot and smelly

Delayed delayed. Poor professionalism. Our seats changed and we pay for them

Delayed due to weather in Dallas (arriving flight arrived late), then boarded the plane only to deboard immediately afterwards, tire needed to be replaced. Flight supposed to depart at 6:15pm but departed at 9:35pm.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

Meals were not so good. Snack between the meals was very bad. Like Japan Airlines, they could eliminate the snack and make the second meal much better.

Baggage allowances are terrible and the experience of only being allowed one bag and paying so much to take sporting equipment to a known ski area should be addressed.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

Didnt make it on flight. Flight was delayed. Then had to get rebooked for a flight that was 8 hours later. Guess who had to wait for 8 hours at the airport?

The flight was smooth, the plane was spacious and clean, the staff was kind and the food was decent.

Pretzels were a bit dry and dusty, however it is nice to have a choice between sweet and savory snacks.

The TV screen at my seat was not functioning for the entire duration of the flight. I informed a flight attendant about the issue, and I was told that I would receive a voucher as compensation. However, I never received this voucher afterward. I therefore kindly request to still receive the voucher that was promised to me.

Flight crew was great, and even the crew for checking bags! I had a question for a friend of mine flying tomorrow and the man I talked to was awesome and answered my questions and looked up things for me when he didn’t have to! I was able to give her current & accurate info for her flight and she was so appreciative too!!

As mentioned before the fact that my paid-for aisle seats had been changed to non-aisle seats is unacceptable. Happily one staff member at the boarding counter did correct it before the flights, otherwise I would have been forced to submit a formal complaint. If it happens again on return flights, I will put in a formal complaint.

Another good flight experience with Air Canada. The business section did not feature the full length sleeping arrangement, but this was a shorter trip. The food was excellent. But the flight crew was truly top tier: friendly, cheerful, helpful at all the right times. Air Canada truly outshines all U.S. carriers.

Everything could be better, the worst is the crew, looks like they are not happy in the work. Air Canada is downhill for years, every flight looks worst. Hope they can fix the issues, by now, just flying AC in toutes with no other alternatives. Shame.

This was my second leg of my trip and was delayed so was worried about my connection in Montreal. Still hungry so on boarding I asked a flight attendant if I could use my $14.00 voucher on the plane for food as I was starving. She said she would check and let me know but she never came back. So no food again as none was offered. Had to get my bags and check them again and that was ok but don’t understand why I had to go through security and because of them almost missed my flight. No food offered nor possibility to purchase food so still hungry and just watched a movie and hoped I could get food when I landed. Was able to use the $14.00 voucher to buy something and had my family bring food as I was now starving. I’ve been travelling on AC for years and this was my worst experience ever. After our flight got cancelled in SXM and was told the staff there didn’t work for AC so couldn’t do much to help us was not a good experience

Staff looked unprofessional. Sloppy uniforms and hardly a smile to be found

Everything you need to know for your flight from Montreal to Puerto Rico

Information on your arrival and departure airports