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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires from C$ 450

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — BUE
8 Jul — 15 Jul1
1 adult

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Buenos Aires are usually found in September or May, booked 27 days in advance, depart on a Monday or Saturday and return on a Monday

Cheap flight deals from Pierre Elliott Trudeau Intl to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) 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 3 July 2025.

Round-trip from

C$ 973

One-way from

C$ 450

Popular in

July

Cheapest in

September

Average price

C$ 1,468
LATAM Airlines
  • LATAM Airlines
  • 24/9-1/10
  • 4 total stops
  • 42h 14m total
  • Montreal to Buenos Aires
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28/9
  • 28/9
  • 3 total stops
  • 33h 07m total
  • Montreal to Buenos Aires
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 155 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 28 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Pierre Elliott Trudeau Intl to Buenos Aires

Cheapest flights from Pierre Elliott Trudeau Intl to Buenos Aires
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.

Wed 31/125:45 a.m.YUL - EZE
1 stop16h 20mArajet
Thu 5/211:07 a.m.EZE - YUL
1 stop14h 38mArajet
Deal found 1/7C$ 664
Wed 31/125:45 a.m.YUL - EZE
1 stop16h 20mMultiple Airlines
Sat 7/21:45 a.m.EZE - YUL
1 stop20h 50mMultiple Airlines
Deal found 1/7C$ 848
Wed 24/96:55 p.m.YUL - AEP
2 stops22h 40mLATAM Airlines
Wed 1/105:00 p.m.AEP - YUL
2 stops19h 34mLATAM Airlines
Deal found 1/7C$ 973
Tue 4/117:00 a.m.YUL - EZE
2 stops21h 10mLATAM Airlines
Tue 25/117:55 a.m.EZE - YUL
2 stops17h 58mLATAM Airlines
Deal found 3/7C$ 976
Wed 15/1011:25 p.m.YUL - EZE
1 stop14h 55mAvianca
Tue 28/101:45 a.m.EZE - YUL
1 stop20h 50mAvianca
Deal found 2/7C$ 1,017
Mon 3/118:00 a.m.YUL - AEP
2 stops24h 30mMultiple Airlines
Mon 17/116:20 p.m.AEP - YUL
2 stops19h 19mMultiple Airlines
Deal found 2/7C$ 1,060
Tue 11/116:00 a.m.YUL - EZE
2 stops25h 20mUnited Airlines
Wed 19/1110:05 p.m.EZE - YUL
2 stops17h 55mUnited Airlines
Deal found 30/6C$ 1,062
Mon 10/117:10 a.m.YUL - EZE
1 stop15h 48mCopa Airlines
Mon 24/1110:01 a.m.EZE - YUL
1 stop15h 42mCopa Airlines
Deal found 3/7C$ 1,089
Tue 30/123:00 p.m.YUL - AEP
2 stops36h 40mAvianca
Mon 9/27:00 a.m.AEP - YUL
1 stop15h 35mAvianca
Deal found 1/7C$ 1,138

Cheapflights Fare Finder

Customize your flight search to find flights from Pierre Elliott Trudeau Intl 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 3 July 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Buenos Aires

Route

Depart

Return

Price

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Wed 24/9

6:55 p.m.-6:35 p.m.

2 stops22h 40m

Buenos Aires Jorge Newbery

Wed 1/10

5:00 p.m.-11:34 a.m.

2 stops19h 34m

C$ 973

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 4/11

7:00 a.m.-6:10 a.m.

2 stops21h 10m

Buenos Aires Ministro Pistarini

Tue 25/11

7:55 a.m.-11:53 p.m.

2 stops17h 58m

C$ 976

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 15/10

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

1 stop14h 55m

Buenos Aires Ministro Pistarini

Tue 28/10

1:45 a.m.-9:35 p.m.

1 stop20h 50m

C$ 1,017

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Fri 7/11

10:00 p.m.-10:03 p.m.

2 stops22h 03m

Buenos Aires Ministro Pistarini

Tue 9/12

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

1 stop14h 38m

C$ 1,037

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Fri 15/8

10:30 p.m.-5:15 p.m.

1 stop17h 45m

Buenos Aires Ministro Pistarini

Fri 22/8

8:30 p.m.-10:40 a.m.

1 stop15h 10m

C$ 1,053

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 3/11

8:00 a.m.-10:30 a.m.

2 stops24h 30m

Buenos Aires Jorge Newbery

Mon 17/11

6:20 p.m.-11:39 a.m.

2 stops19h 19m

C$ 1,060

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 11/11

6:00 a.m.-9:20 a.m.

2 stops25h 20m

Buenos Aires Ministro Pistarini

Wed 19/11

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

2 stops17h 55m

C$ 1,062

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

7:10 a.m.-12:58 a.m.

1 stop15h 48m

Buenos Aires Ministro Pistarini

Mon 24/11

10:01 a.m.-11:43 p.m.

1 stop15h 42m

C$ 1,089

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sat 16/8

9:50 p.m.-2:30 p.m.

2 stops39h 40m

Buenos Aires Ministro Pistarini

Sat 23/8

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

1 stop14h 40m

C$ 1,098

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Tue 30/12

3:00 p.m.-5:40 a.m.

2 stops36h 40m

Buenos Aires Jorge Newbery

Mon 9/2

7:00 a.m.-8:35 p.m.

1 stop15h 35m

C$ 1,138

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

Showing 1-10 of 23 results
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Best time to book a flight from Pierre Elliott Trudeau Intl to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to Buenos Aires

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

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to Buenos Aires. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires (average of C$ 816). Flying from Montreal Pierre Elliott Trudeau Intl Airport 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 YUL to BUE?

Find hourly flight availability from Pierre Elliott Trudeau Intl 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 3 July 2025.

It’s typically best to fly out from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires in the afternoon. Doing so could potentially save you 6% on the flight price compared to flying in the evening, which is usually more expensive.

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

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

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

How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

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 3 July 2025.
Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires, such as Delta,LATAM Airlines, andCopa Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
1,805 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
1,467 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

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 Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to Buenos Aires round-trip?

    Cheapflights users have booked flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires round-trip from C$ 973. Other airlines that can offer you cheap pricing are Avianca, from C$ 1,017, and Arajet, from C$ 1,053. These flights start at 22% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires one-way?

    The cheapest airlines for a one-way flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires are Arajet (C$ 499), Avianca (C$ 504), and LATAM Airlines (C$ 512).

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Buenos Aires that include hotel bookings?

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

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Buenos Aires?

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

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Buenos Aires?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to Buenos Aires?

    Currently, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires (average of C$ 816). Flying from Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl to Buenos Aires

Discover the top 6 airlines that operate flights from Pierre Elliott Trudeau Intl 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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
ArajetCheapestC$ 684AverageC$ 1,152FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
AviancaCheapestC$ 691AverageC$ 1,101FlexibilityNo cancel feeOn-time71%
Search Avianca flights
DeltaCheapestC$ 890AverageC$ 1,212FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Copa AirlinesCheapestC$ 1,032AverageC$ 1,256FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
Air CanadaCheapestC$ 1,077AverageC$ 1,443FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 1,089AverageC$ 1,457FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Buenos Aires?

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Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Buenos Aires?

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Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Buenos Aires with no change fees?

Need flexible booking options for your flight to Buenos Aires from Pierre Elliott Trudeau Intl? 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 Pierre Elliott Trudeau Intl to Buenos Aires become cheaper?

Yes, Cheapflights offers price alerts on Pierre Elliott Trudeau Intl to Buenos Aires flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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