YUL - BUE

C$ 466 Find Cheap Flights from Montreal to Buenos Aires

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 Buenos Aires departing on 1/7. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Buenos Aires

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Buenos Aires.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Buenos Aires.
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Everything you should know

Cheapest round-trip
C$ 952
Typical prices: C$ 1,176-C$ 1,124
Copa Airlines
Wed 19/8Sun 30/8
YUL - EZE • 1 stop
Cheapest one-way flights
C$ 466
Arajet
Wed 1/7
YUL - EZE • 1 stop
Top airlines
Cheapest • from C$ 952 (round-trip)
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Montreal and Buenos Aires. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg C$ 1,090 (round-trip)
Shortest trip • 15h 36m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Buenos Aires!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Montreal to Buenos Aires (YUL-BUE)

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

Wed, 19 Aug - Sun, 30 Aug
Copa Airlines Logo
8:35 a.m. - 7:57 a.m.
YUL
-
EZE
22h 22m
1 stop
Copa Airlines Logo
3:48 a.m. - 12:40 a.m.
EZE
-
YUL
21h 52m
1 stop
C$ 952Copa Airlines
Thu, 8 Oct - Tue, 13 Oct
Copa Airlines Logo
8:35 a.m. - 4:21 a.m.
YUL
-
EZE
18h 46m
1 stop
Copa Airlines Logo
8:59 a.m. - 12:40 a.m.
EZE
-
YUL
16h 41m
1 stop
C$ 954Copa Airlines
Tue, 1 Dec - Sat, 27 Feb
Multiple Airlines Logo
5:45 p.m. - 9:00 p.m.
YUL
-
EZE
25h 15m
1 stop
Multiple Airlines Logo
4:45 p.m. - 11:23 a.m.
EZE
-
YUL
20h 38m
2 stops
C$ 964Multiple Airlines
Mon, 23 Nov - Mon, 30 Nov
Copa Airlines Logo
7:22 a.m. - 1:53 a.m.
YUL
-
EZE
16h 31m
1 stop
Copa Airlines Logo
5:16 a.m. - 12:07 a.m.
EZE
-
YUL
20h 51m
1 stop
C$ 968Copa Airlines
Wed, 26 Aug - Sun, 6 Sep
Arajet Logo
7:00 a.m. - 12:05 a.m.
YUL
-
EZE
16h 05m
1 stop
Arajet Logo
8:40 a.m. - 12:20 a.m.
EZE
-
YUL
16h 40m
1 stop
C$ 1,004Arajet
Thu, 13 Aug - Thu, 20 Aug
Multiple Airlines Logo
12:44 p.m. - 3:30 p.m.
YUL
-
AEP
25h 46m
2 stops
Multiple Airlines Logo
12:50 p.m. - 5:42 p.m.
AEP
-
YUL
29h 52m
2 stops
C$ 1,147Multiple Airlines
Tue, 27 Oct - Tue, 17 Nov
Delta Logo
6:15 p.m. - 4:00 p.m.
YUL
-
AEP
20h 45m
2 stops
Delta Logo
5:05 p.m. - 5:03 p.m.
AEP
-
YUL
25h 58m
2 stops
C$ 1,166Delta
Sat, 28 Nov - Fri, 26 Feb
Delta Logo
6:15 p.m. - 4:00 p.m.
YUL
-
AEP
19h 45m
2 stops
Delta Logo
5:05 p.m. - 5:03 p.m.
AEP
-
YUL
25h 58m
2 stops
C$ 1,170Delta
Wed, 2 Dec - Fri, 26 Feb
LATAM Airlines Logo
6:15 p.m. - 5:00 p.m.
YUL
-
AEP
20h 45m
2 stops
LATAM Airlines Logo
5:05 p.m. - 5:03 p.m.
AEP
-
YUL
25h 58m
2 stops
C$ 1,172LATAM Airlines
Sun, 25 Oct - Wed, 18 Nov
LATAM Airlines Logo
6:15 p.m. - 6:30 p.m.
YUL
-
AEP
23h 15m
2 stops
LATAM Airlines Logo
3:40 p.m. - 5:03 p.m.
AEP
-
YUL
27h 23m
2 stops
C$ 1,173LATAM Airlines
Booking Insights

KAYAK's insights & trends for Montreal to Buenos Aires flights

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

How much is a round-trip flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires departing in August.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

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 Buenos Aires, 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 Buenos Aires is June, where tickets cost C$ 450 (return) on average. On the other hand, the most expensive months are May and August, where the average cost of round-trip tickets is C$ 994 and C$ 991 respectively.

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

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 Buenos Aires, 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 Buenos Aires, you should book around 3 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonMay
Cheapest flightC$ 466
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (10% more expensive on average)
Flight from Montreal to Buenos Aires Ministro Pistarini

When to book flights from Montreal to Buenos Aires

Are your dates flexible? Find out the best times to travel from Montreal to Buenos Aires 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 Buenos Aires flights

  • What is the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

    In the last 5 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires was C$ 466 for a one-way ticket and C$ 952 for a round-trip.

  • Which airports will I be using when flying from Montreal to Buenos Aires?

    On your way to Buenos Aires, you’ll fly out from Montreal Pierre Elliott Trudeau Intl. You’ll be landing in one of Buenos Aires’s 2 airports: Buenos Aires Jorge Newbery or Buenos Aires Ministro Pistarini.

  • Which aircraft models fly most regularly from Montreal to Buenos Aires?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Montreal to Buenos Aires?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Montreal and Buenos Aires, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Buenos Aires from Montreal?

    Sao Paulo is the most popular layover city among KAYAK users travelling from Montreal to Buenos Aires.

  • Which is the best airline for flights from Montreal to Buenos Aires, Delta or Copa Airlines?

    The two airlines most popular with KAYAK users for flights from Montreal to Buenos Aires are Delta and Copa Airlines. With an average price for the route of C$ 1,237 and an overall rating of 7.9, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of C$ 1,248 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Montreal to Buenos Aires?

    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 Buenos Aires.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Montreal 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 Buenos Aires?

    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 Buenos Aires with an airline and back to Montreal with another airline.

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

    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 Buenos Aires 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 flying from Montreal to Buenos Aires

 
See real verified KAYAK customer reviews for airlines flying from Montreal to Buenos Aires. 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 Buenos Aires? 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.
7.5
Copa AirlinesOverall score based on 1568 reviews
6.8Entertainment
7.4Comfort
8.1Crew
6.9Food
7.8Boarding
Airline reviews

Same as the previous flight as far as comfort and food. Entertainment didn’t have a watchable screen so everything would need to be watched on your own device in which they didn’t have a charging port that accommodated my iPhone. Seats were very uncomfortable. Staff was very friendly.

6.0 GoodAnonymous, May 2026
PTY - LAX
Read more Copa Airlines reviews

Same as the previous flight as far as comfort and food. Entertainment didn’t have a watchable screen so everything would need to be watched on your own device in which they didn’t have a charging port that accommodated my iPhone. Seats were very uncomfortable. Staff was very friendly.

They didn’t have any headphones for the entertainment screen and their USB port didn’t accommodate a USB-C for more modern phones. The food was just ok. The staff was friendly but the seats were very uncomfortable for a full flight.

Boarding was a mess, they call all priority members without distinction so gold, platinum, silver were all mixed together in a long line which defeats the purpose

Entire experience from check in to landing was amazing the flight crew was excellent and friendly. Seats were comfortable.

Friendly crew, good food options, food not the best and seats not as comfy but that’s typical.

Flight got delayed; had to go through security three times.

Copa staff at PTY and one particular crew member were unhelpful & rude.

There should be a warning regarding the quality of the aircraft on the website as we reserve the tickets. There was no TV or any type of screen onboard. The wifi they offer is good for nothing. Traveling 9 hours straight with kids and no type of entetainment was horrible. I wish I had been informed prior so I could buy a ticket with another airline. The food was a joke too. A very tiny portion per passenger. They also charged $100 per checked bag. With United I used to pay $60. So, fair to say that I wont be flying Copa anymore. Their aircraft was super old, outdated, no entertainment, with nearly no onboard food.

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

I always enjoy flying Copa. There are very few airlines where I can enjoy a comfortable sleep in-flight. The snacks weren't the best, but they sufficed. The in-flight entertainment was fantastic, and I crossed another movie off my watch list.

LATAM clearly does not have well-established policies re: luggage for international flights to Lima followed by domestic flights within Peru (in my case, from Lima to Cuzco). On the way in, they forced me to pay $50 in Lima to check my second carry on bag (the three bags were included in the fare from JFK to Lima). On the return trip, they told me at check in that I would have to pay $50 again at the gate (she said they couldn't accept the money at check in) Then, at the gate, they initially told me I would have to pay several hundred dollars to check the big bag through to JFK. I protested, and showed them a print out of an email saying the checked bag was included between LIM and JFK. Than a second woman showed up, and told me I wouldn't have to pay anything at all -- which was great news, of course -- but that means I was incorrectly charged the extra $50 on the incoming flight. Basically, just a mess. Also, their website is completely non-functional -- it was very cleear that all the airport staff knew the website was nonfunctional, too.

In flight from Miami to Anchorage, we were all on board ready to take off. Pilot decided to take on more fuel causing a delay. Once fueled, the pilot came back over the radio stating more delay due to VIP. These delays caused me to miss my connecting flight. I went to the Alaska Air counter for information. They flat out stated that it was ATCs fault that I missed my flight and booked me a flight the next day about 1300 . I believe if we had the fuel prior to getting on board we would not of been delayed and I would have taken off on time. Pilot was taken out of the equation. I think they should’ve taken responsibility for their pilots decision to top off his aircraft instead of waiting til the last moment. Enough said…

Nothing I like, I missed this connection b/c of an earlier flight delay. I had to stay one more night and I paid out my own pocket. LATAM failed to send me to a safe and decent hotel.

Deleted flight made me loose my connection flight now stuck in Atlanta for a day

Apart of Sky miles delta. And they go everywhere in Brazil

Latam wouldn’t tell me how much checked luggage would until I was at the airport and they charged me the highest price possible. Besides that, it was okay.

Comfort in exit seat was excellent. FLight crew and flight were excellent. However exit seat tray table was broken so could not use it. Entertainment monitor did not work at all despite attempts to reset it.

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

Wish the seats were a little more comfortable.. it was a 6 hrs nonstop trip. But the crew was courteous and w a smile

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.

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

Seats are absolutely not comfortable and large enough. There’s a limit and you stepped over it. I understand that there’s a business class, however for the price it costs, it’s just plain stupid for a 50 minute flight.

The crew was great! They waited for me as Air Canada flight was delayed by 1:15 hours from Ottawa to Toronto. I am a bit disappointed that we could only use wifi for entertainment but I survived! The only thing I would of liked is a more comfortable seat. The seat cushions are not thick enough for flights longer than 3 hours. Aside from that, everything was great.

The worst experience I've ever had because the "people" @ Avianca wouldn't let me fly because they said I needed a round trip ticket

I had bad experiences before now was excellent I am glad they have business class again

Horrible experience with Avianca, they delayed their flight and when we arrived to NYC, AVIANCA took 1 hr y 30 mins to park the airplane and all passenger get off the plane, it made me lost all my trains to get back home and I came back to my place at 3 am instead of 12 am. On the top of that their plane seat are so uncomfortable and is not enough space and killed my legs and knees, Avianca used to be good when it was a Colombian company, now after Brasilian company bought them, their service quality is bad and their flights are delayed and oversold.

It was delayed and I lost my connection flight to Cali and I missed my Mom's funeral and avianca lost my check in luggage

I upgraded to businesses class. Because of that the flight was comfortable.

I actually upgraded to the medium level of seats from basic and even doing that it may have been physically the most uncomfortable flight I have ever had. They packed everyone like is a train to death camp. It was a red eye so I hoped to get some sleep but it was physically impossible to find a comfortable way to rest. I met other folks on the same flight and they said the same thing. It was an utterly miserable flight and if I have any other options I will never fly with them again

Not good, tried to purchase a first class upgrade and they couldn’t get it done. Was super uncomfortable the whole time.

Pros: we leave and arrive on time Cons: the most uncomfortable seats ever. You cant recline at all your seats. No entertainment No TVs flight attendants didn't provide even a glass of water. You have to go to back of the airplane and ask for one. I am Colombian and I remember seeing the flight attendants very neat, elegants which is or was a staple of Avianca.it was one with tennis shoes, no male up, the hair was messy... that was really odd.

Everything you need to know for your flight from Montreal to Buenos Aires

Information on your arrival and departure airports