YUL - BUE

C$ 467 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 24/5. 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.
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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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Cheap Flight Deals 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.

Recent round-trip flight deals from Montreal to Buenos Aires

KAYAK's recommended round-trip deals from the most popular airlines that fly from Montreal to Buenos Aires.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Avianca Logo
11:25 p.m. - 3:20 p.m.YUL-EZE
14h 55m1 stop
Avianca Logo
1:40 a.m. - 10:05 p.m.EZE-YUL
21h 25m1 stop
C$ 1,038Avianca
Find Deal
Wed, 10 Sep - Thu, 25 Sep
Copa Airlines Logo
8:41 a.m. - 1:02 a.m.YUL-EZE
15h 21m1 stop
Copa Airlines Logo
10:05 a.m. - 12:40 a.m.EZE-YUL
15h 35m1 stop
C$ 1,040Copa Airlines
Find Deal
Mon, 16 Jun - Mon, 23 Jun
United Airlines Logo
9:15 a.m. - 8:00 a.m.YUL-EZE
21h 45m2 stops
United Airlines Logo
9:00 p.m. - 5:26 p.m.EZE-YUL
45h 26m2 stops
C$ 1,069United Airlines
Find Deal
Mon, 14 Jul - Thu, 31 Jul
United Airlines Logo
9:45 a.m. - 8:00 a.m.YUL-EZE
45h 15m2 stops
United Airlines Logo
9:00 p.m. - 7:45 p.m.EZE-YUL
23h 45m2 stops
C$ 1,073United Airlines
Find Deal
Mon, 14 Jul - Mon, 4 Aug
Air Canada Logo
10:45 p.m. - 2:30 p.m.YUL-EZE
14h 45m1 stop
Air Canada Logo
4:35 p.m. - 6:15 a.m.EZE-YUL
14h 40m1 stop
C$ 1,095Air Canada
Find Deal
Sun, 25 May - Sat, 7 Jun
Air Canada Logo
10:45 p.m. - 2:30 p.m.YUL-EZE
14h 45m1 stop
Air Canada Logo
4:35 p.m. - 6:15 a.m.EZE-YUL
14h 40m1 stop
C$ 1,096Air Canada
Find Deal
Wed, 14 May - Wed, 21 May
Delta Logo
6:00 a.m. - 5:55 a.m.YUL-EZE
46h 55m2 stops
Delta Logo
3:55 a.m. - 9:26 p.m.EZE-YUL
42h 31m2 stops
C$ 1,149Delta
Find Deal
Mon, 29 Sep - Sun, 19 Oct
Delta Logo
5:00 p.m. - 5:55 a.m.YUL-EZE
35h 55m2 stops
Delta Logo
3:55 a.m. - 9:26 p.m.EZE-YUL
42h 31m2 stops
C$ 1,214Delta
Find Deal
Sun, 28 Sep - Sun, 19 Oct
Arajet Logo
11:40 a.m. - 3:25 a.m.YUL-EZE
14h 45m1 stop
Arajet Logo
8:30 p.m. - 10:40 a.m.EZE-YUL
15h 10m1 stop
C$ 1,292Arajet
Find Deal
Tue, 15 Jul - Mon, 4 Aug
Arajet Logo
11:40 a.m. - 3:25 a.m.YUL-EZE
14h 45m1 stop
Arajet Logo
8:30 p.m. - 10:40 a.m.EZE-YUL
15h 10m1 stop
C$ 1,295Arajet
Find Deal
Tue, 15 Jul - Mon, 4 Aug

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.

What’s the cheapest day of the week to fly from Montreal to Buenos Aires?

The average price of all round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires clicked on KAYAK for each day over the last 12 months.
When flying from Montreal to Buenos Aires, you should consider leaving on a Monday and avoid Wednesdays if you are looking for the best rates. For your return to Montreal, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

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 September, where tickets cost C$ 1,098 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is C$ 1,504 and C$ 1,469 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

May

High season

December

Cheapest flight

C$ 467
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (16% more expensive on average)
Flight from Montreal to Buenos Aires Jorge Newbery

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 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires was C$ 338 for a one-way ticket and C$ 751 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Montreal and Buenos Aires, with Star Alliance 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$ 1,221 and an overall rating of 8.0, Delta is the most popular choice. Copa Airlines is also a great choice for the route, with an average price of C$ 1,310 and an overall rating of 7.6.

  • 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.

See more FAQs

Top 5 airlines serving 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.
8.0
DeltaOverall score based on 7920 reviews
7.9Entertainment
7.9Comfort
8.5Crew
8.2Boarding
7.3Food
Airline reviews

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

8.0 ExcellentSally, Apr 2025GRB - DTW
Read more Delta reviews

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Tasty snacks. On-time departure and early arrival. Luggage arrived quickly at the carrousel. The only negative was a man behind us that was heavily inebriated. He was served 3 double drinks during the flight. There was no telling how much he had before the flight. He was so out of it that he spilled a drink and broke the heavy liquor glass on the floor. I don't believe he should have been served so much alcohol on a two-hour flight.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Very dissatisfied with the fact that I had upgraded to first class for the second part of my trip only to find out that the lounge was still not available to me, as well as not having any food or drink service on the flight due to weather, so I lost out more than what I paid for.

The seats are uncomfortable, feels like a small seat pad on plywood.

Delta cancelled my flight less than 24 hours before departure and provided no alternative options. Left me to fend for myself basically. Scrambled to book flight on another airline and paid a fortune to do so last minute.. Can’t wait to see how Delta deals with my refund.

Typical flying experience in the US. Nothing particularly good or bad.

Main cabin seats are uncomfortable for long flights. Food is mediocre at best. Cabin crew is good. Pilot was nice enough to tip the wings for viewing the Alps.

Forced to check my bag which fit in carry on, boarded and then sat for over an hour waiting to take off with no explanation.

I upgraded myself to Business Class at the last minute so I had a DREAMS window seat. Seeing as I've never flown Business before everything was novel and fun for me and it made the 7 hour flight much more enjoyable for sure.

No headphones given for inflight entertainment. I missed my flight from the previous day and the customer service agent tried to extort an additional $100.00 US from me for missing my flight. Really?!

It was reasonably comfortable trip considering its duration (7 hours). Crew was very good and friendly, seats very more comfortable than other planes. Only negative comment would be that the bathroom light did not get its full brightness 🙃

It was good, plane is a bit older so seats are somewhat flat

Great from check in all the way to the end. Very happy with Copa

Copa stranded us ans then tried to charge us thousands to leave Panama.

Well the airline was fine. The only thing is I was charged for a checked in luggage. But when I reserved the ticket it showed a check in bag allowed. Who can I get in contact with for reimbursement.? The airline said I had to speak to whoever I booked ticket with.

Friendly flight team and seamless travel from one stop to next.

I loved my experience. Very safe, Very informative and very friendly.

At JFK the Security line was extremely long and few checkpoints open.

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.

Everything was good. Flight was on time, luggage pickup was quick. The staff were great. Could not ask for anything more.

lots of delays the crew were unclear about where to pick up my carry-on, which they took from me to check in on the plane.

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.

Business class seats did not lie flat. There was only powdered milk for your coffee....in Business Class!! Food was good.

The seats were very uncomfortable. I would have upgrade or got different flight if I knew. I usually sleep in the plane but I couldn’t sleep at all. Very uncomfortable. Also no food or drink everything was to purchase, and that’s u usual for international flight.

please see previous response; it covers the whole travel trajectory.

Overpriced checked bag price of $120 and they charge you for carryon if the size is not minimal of $120.

Be very careful of the initial low price because Avianca wil bill you for a carryon of $120 or a checked bag for $120. Also, be careful with connections because the customs entry process is slow and the connecting terminal is not close.

They charged me $120 to check one bag and then charged me another $120 for a carryon. Ridiculous!

Worst airline , charge for everything even for water, seat space is very bad

Avíanca now has cero entertainment, food and even water for their travels in economy. We spend all 6 or more hours ignored or we are offered products to buy using only credit card .

They charged for WATER on a SIX hour flight!! never again!

Poor In food , poor in entertainment , passengers don’t get for free not even water

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

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