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Cheap flights from Montreal to Buenos Aires from C$ 453

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — BUE
17 Jun — 24 Jun1
1 adult

Cheapflights Tip: The best prices from Montreal to Buenos Aires are usually found in September or November, booked 52 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

Cheap flight deals from Montreal to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 June 2025.

Round-trip from

C$ 971

One-way from

C$ 453

Popular in

December

Cheapest in

September

Average price

C$ 1,199
American Airlines
  • American Airlines
  • 10/9-26/9
  • 4 total stops
  • 48h 21m total
  • Montreal to Buenos Aires
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3/9
  • 3/9
  • 2 total stops
  • 20h 55m total
  • Montreal to Buenos Aires
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Highest demand for flights based on searches. 6% potential increase in price (C$ 121 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 46 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Montreal to Buenos Aires

Cheapest flights from Montreal to Buenos Aires
Explore the most affordable flight options available from Montreal to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Wed 10/910:41 a.m.YUL - EZE
2 stops21h 19mAmerican Airlines
Fri 26/98:30 p.m.EZE - YUL
2 stops27h 02mAmerican Airlines
Deal found 11/6C$ 971
Wed 8/1011:25 p.m.YUL - EZE
1 stop14h 55mAvianca
Thu 23/101:40 a.m.EZE - YUL
1 stop21h 25mAvianca
Deal found 12/6C$ 1,034
Wed 9/710:40 p.m.YUL - EZE
1 stop14h 50mAir Canada
Wed 30/74:35 p.m.EZE - YUL
1 stop14h 40mAir Canada
Deal found 11/6C$ 1,038
Tue 4/116:00 a.m.YUL - EZE
2 stops23h 20mUnited Airlines
Tue 18/1111:55 p.m.EZE - YUL
2 stops40h 05mUnited Airlines
Deal found 10/6C$ 1,065
Wed 1/108:41 a.m.YUL - EZE
1 stop18h 33mCopa Airlines
Thu 16/1010:05 a.m.EZE - YUL
1 stop15h 35mCopa Airlines
Deal found 10/6C$ 1,087
Wed 19/1110:00 p.m.YUL - EZE
1 stop24h 15mMultiple Airlines
Tue 9/1211:07 a.m.EZE - YUL
1 stop14h 38mMultiple Airlines
Deal found 11/6C$ 1,090
Tue 4/112:45 p.m.YUL - EZE
1 stop16h 15mDelta
Tue 18/118:55 p.m.EZE - YUL
1 stop22h 09mDelta
Deal found 10/6C$ 1,106
Tue 30/97:00 a.m.YUL - AEP
2 stops37h 30mLATAM Airlines
Thu 16/103:40 p.m.AEP - YUL
2 stops26h 24mLATAM Airlines
Deal found 10/6C$ 1,112
Tue 7/107:00 a.m.YUL - EZE
2 stops27h 47mLATAM Airlines
Tue 14/1012:48 p.m.EZE - YUL
2 stops23h 56mLATAM Airlines
Deal found 12/6C$ 1,117
Wed 8/107:00 a.m.YUL - AEP
2 stops37h 20mMultiple Airlines
Fri 24/104:30 p.m.AEP - YUL
2 stops22h 09mMultiple Airlines
Deal found 12/6C$ 1,125
Thu 12/64:05 p.m.YUL - AEP
2 stops36h 35mAvianca
Wed 25/67:00 a.m.AEP - YUL
1 stop16h 05mAvianca
Deal found 11/6C$ 1,185
Fri 25/710:30 p.m.YUL - EZE
1 stop17h 45mArajet
Fri 1/84:25 a.m.EZE - YUL
1 stop18h 05mArajet
Deal found 10/6C$ 1,240

Cheapflights Fare Finder

Customize your flight search to find flights from Montreal to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 June 2025.
Use the filters below to find and compare flights from Montreal to Buenos Aires that are best for you.

Fly from

Montreal

Fly to

Buenos Aires

Route

Depart

Return

Price

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 10/9

10:41 a.m.-9:00 a.m.

2 stops21h 19m

Buenos Aires Ministro Pistarini

Fri 26/9

8:30 p.m.-10:32 p.m.

2 stops27h 02m

C$ 971

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 8/10

11:25 p.m.-3:20 p.m.

1 stop14h 55m

Buenos Aires Ministro Pistarini

Thu 23/10

1:40 a.m.-10:05 p.m.

1 stop21h 25m

C$ 1,034

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 9/7

10:40 p.m.-2:30 p.m.

1 stop14h 50m

Buenos Aires Ministro Pistarini

Wed 30/7

4:35 p.m.-6:15 a.m.

1 stop14h 40m

C$ 1,038

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 4/11

7:00 a.m.-7:20 a.m.

2 stops22h 20m

Buenos Aires Ministro Pistarini

Wed 19/11

10:05 p.m.-2:00 p.m.

2 stops17h 55m

C$ 1,065

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

8:41 a.m.-4:14 a.m.

1 stop18h 33m

Buenos Aires Ministro Pistarini

Thu 16/10

10:05 a.m.-12:40 a.m.

1 stop15h 35m

C$ 1,087

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

10:00 p.m.-12:15 a.m.

1 stop24h 15m

Buenos Aires Ministro Pistarini

Tue 9/12

11:07 a.m.-11:45 p.m.

1 stop14h 38m

C$ 1,090

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 4/11

2:45 p.m.-9:00 a.m.

1 stop16h 15m

Buenos Aires Ministro Pistarini

Tue 18/11

8:55 p.m.-5:04 p.m.

1 stop22h 09m

C$ 1,106

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Tue 30/9

7:00 a.m.-9:30 p.m.

2 stops37h 30m

Buenos Aires Jorge Newbery

Thu 16/10

3:40 p.m.-5:04 p.m.

2 stops26h 24m

C$ 1,112

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 7/10

7:00 a.m.-11:47 a.m.

2 stops27h 47m

Buenos Aires Ministro Pistarini

Tue 14/10

12:48 p.m.-11:44 a.m.

2 stops23h 56m

C$ 1,117

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Wed 8/10

7:00 a.m.-9:20 p.m.

2 stops37h 20m

Buenos Aires Jorge Newbery

Fri 24/10

4:30 p.m.-1:39 p.m.

2 stops22h 09m

C$ 1,125

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 27 results
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Best time to book a flight from Montreal to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Montreal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Montreal to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Montreal to Buenos Aires. Price data was last updated on 9 June 2025.

Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Montreal to Buenos Aires?

Currently, November is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 816). Flying from Montreal to Buenos Aires in December is currently the most expensive (average of C$ 1,063). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YMQ to BUE?

Find hourly flight availability from Montreal to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.

One of the essential ways to save on airfare from Montreal to Buenos Aires is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 6% on airfare.

What is the cheapest day to fly from Montreal to Buenos Aires?

Use this chart to determine the cheapest time to fly round-trip from Montreal to Buenos Aires. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Montreal to Buenos Aires flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buenos Aires ranges from 50.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. June is typically the driest time to visit Buenos Aires when rainfall is around 50.0 mm.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated 12 June 2025.
Peruse reviews from past customers who have flown with Delta, LATAM Airlines and Copa Airlines from Montreal to Buenos Aires to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
LATAM Airlines
7.5
Good
1,785 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
Copa Airlines
7.5
Good
1,451 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
GOL
7.3
Good
1,073 reviews
Delta
8.0
Very good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Related info for your journey

Find useful and relevant information for your journey from Montreal to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Montreal to Buenos Aires round-trip?

    According to our current data, American Airlines (C$ 971), Avianca (C$ 1,034), and Air Canada (C$ 1,038) offers the cheapest pricing from Montreal to Buenos Aires. These flights start at 22% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Montreal to Buenos Aires one-way?

    One-way options have recently been found by users for as low as C$ 479 on American Airlines. Other airlines that offer cheap prices include Copa Airlines from C$ 507 and Air Canada from C$ 517 one-way.

  • Can I find deals for flights from Montreal to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Montreal to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Buenos Aires.

  • Can I find deals for business class flights from Montreal to Buenos Aires?

    Yes. Cheapflights offers flight deals from Montreal to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal to Buenos Aires?

    Currently, November is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 816). Flying from Montreal to Buenos Aires in December is currently the most expensive (average of C$ 1,063). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Montreal to Buenos Aires

Discover the top 6 airlines that operate flights from Montreal to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
ArajetCheapestC$ 686AverageC$ 1,085FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
AviancaCheapestC$ 693AverageC$ 1,101FlexibilityNo cancel feeOn-time71%
Search Avianca flights
DeltaCheapestC$ 893AverageC$ 1,237FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Copa AirlinesCheapestC$ 1,035AverageC$ 1,266FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
Air CanadaCheapestC$ 1,081AverageC$ 1,453FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 1,093AverageC$ 1,462FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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Why should you use Cheapflights to find cheap flight tickets from Montreal to Buenos Aires?

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Can Cheapflights find flights from Montreal to Buenos Aires with no change fees?

Need flexible booking options for your flight to Buenos Aires from Montreal? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Montreal to Buenos Aires become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Buenos Aires from Montreal today and book when prices fit your budget.

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