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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires from C$ 470

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — BUE
18 Jul — 25 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Buenos Aires

Enter your travel dates to find the best prices.

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 18 June 2026.

Wed 26/87:00 a.m.
YUL
-
EZE
1 stop16h 05m
Arajet
Sun 6/98:40 a.m.
EZE
-
YUL
1 stop16h 40m
Arajet
Deal found 15/6C$ 919
Thu 18/68:35 a.m.
YUL
-
EZE
1 stop16h 55m
Copa Airlines
Thu 25/65:25 a.m.
EZE
-
YUL
1 stop20h 15m
Copa Airlines
Deal found 17/6C$ 936
Mon 15/68:35 a.m.
YUL
-
EZE
1 stop22h 16m
Copa Airlines
Wed 1/78:59 a.m.
EZE
-
YUL
1 stop16h 41m
Copa Airlines
Deal found 14/6C$ 937
Tue 16/68:35 a.m.
YUL
-
EZE
1 stop22h 16m
Copa Airlines
Sun 28/63:48 a.m.
EZE
-
YUL
1 stop21h 52m
Copa Airlines
Deal found 15/6C$ 946
Mon 12/108:35 a.m.
YUL
-
EZE
1 stop18h 46m
Copa Airlines
Wed 28/105:23 a.m.
EZE
-
YUL
1 stop20h 17m
Copa Airlines
Deal found 16/6C$ 954
Wed 19/88:35 a.m.
YUL
-
EZE
1 stop22h 22m
Copa Airlines
Sun 30/83:48 a.m.
EZE
-
YUL
1 stop21h 52m
Copa Airlines
Deal found 14/6C$ 955
Tue 1/125:45 p.m.
YUL
-
EZE
1 stop25h 15m
Multiple Airlines
Sat 27/24:45 p.m.
EZE
-
YUL
2 stops20h 38m
Multiple Airlines
Deal found 14/6C$ 967
Mon 16/117:22 a.m.
YUL
-
EZE
1 stop18h 53m
Copa Airlines
Mon 30/115:16 a.m.
EZE
-
YUL
1 stop20h 51m
Copa Airlines
Deal found 16/6C$ 969
Mon 23/117:22 a.m.
YUL
-
EZE
1 stop16h 31m
Copa Airlines
Mon 30/115:16 a.m.
EZE
-
YUL
1 stop20h 51m
Copa Airlines
Deal found 13/6C$ 971
Fri 23/108:35 a.m.
YUL
-
EZE
1 stop19h 01m
Copa Airlines
Sun 1/113:40 a.m.
EZE
-
YUL
1 stop22h 27m
Copa Airlines
Deal found 16/6C$ 976
Thu 15/108:35 a.m.
YUL
-
EZE
1 stop19h 01m
Copa Airlines
Fri 30/102:07 a.m.
EZE
-
YUL
1 stop23h 33m
Copa Airlines
Deal found 16/6C$ 993
Tue 10/116:15 p.m.
YUL
-
AEP
2 stops19h 45m
Delta
Tue 24/118:05 p.m.
AEP
-
YUL
2 stops29h 46m
Delta
Deal found 17/6C$ 1,166

Find 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 18 June 2026.

Round-trip from

C$ 919

One-way from

C$ 470

Popular in

June

Cheapest in

September

Average price

C$ 1,438
Arajet
  • Arajet
  • 26/8-6/9
  • 2 total stops
  • 32h 45m total
  • Montreal to Buenos Aires
Search Deals
9/11
  • 9/11
  • 2 total stops
  • 35h 58m total
  • Montreal to Buenos Aires
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 70 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).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 18 June 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 28/10

8:51 a.m.-1:51 a.m.

1 stop16h 00m

Buenos Aires Ministro Pistarini

Wed 18/11

8:56 a.m.-12:07 a.m.

1 stop17h 11m

C$ 955

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 18/10

8:35 a.m.-7:57 a.m.

1 stop22h 22m

Buenos Aires Ministro Pistarini

Sat 31/10

5:23 a.m.-12:40 a.m.

1 stop20h 17m

C$ 1,032

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 1/9

8:35 a.m.-4:36 a.m.

1 stop19h 01m

Buenos Aires Ministro Pistarini

Tue 15/9

5:25 a.m.-12:40 a.m.

1 stop20h 15m

C$ 1,107

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Tue 10/11

6:15 p.m.-4:00 p.m.

2 stops19h 45m

Buenos Aires Jorge Newbery

Tue 24/11

8:05 p.m.-11:51 p.m.

2 stops29h 46m

C$ 1,166

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Thu 10/9

2:46 p.m.-9:45 a.m.

1 stop17h 59m

Buenos Aires Ministro Pistarini

Thu 17/9

1:10 p.m.-11:38 a.m.

2 stops23h 28m

C$ 1,169

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 7/12

12:45 p.m.-9:40 a.m.

2 stops18h 55m

Buenos Aires Ministro Pistarini

Wed 20/1

7:45 a.m.-11:51 p.m.

2 stops18h 06m

C$ 1,169

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Sat 28/11

6:15 p.m.-4:00 p.m.

2 stops19h 45m

Buenos Aires Jorge Newbery

Thu 25/2

8:05 p.m.-6:50 p.m.

2 stops24h 45m

C$ 1,170

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

6:15 p.m.-4:00 p.m.

2 stops20h 45m

Buenos Aires Jorge Newbery

Tue 17/11

5:05 p.m.-5:03 p.m.

2 stops25h 58m

C$ 1,170

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

7:00 a.m.-9:40 a.m.

2 stops25h 40m

Buenos Aires Ministro Pistarini

Sun 13/9

1:10 p.m.-5:38 p.m.

2 stops29h 28m

C$ 1,170

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 23/11

2:30 p.m.-9:40 a.m.

2 stops17h 10m

Buenos Aires Ministro Pistarini

Mon 30/11

1:10 p.m.-6:50 p.m.

2 stops31h 40m

C$ 1,170

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/6

Showing 1-10 of 41 resultsSorted by cheapest first
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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

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

Currently, June is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires (average of C$ 452). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires in May is currently the most expensive (average of C$ 997). 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.

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

What’s the top layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

Share of one-stop round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires chosen by Cheapflights users in the past 12 months, using the same layover each way.

Panama City (PTY) – chosen by Cheapflights users on 37% of one-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires on Cheapflights.

What’s the cheapest layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

Average round-trip fare for 1-stop flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Sao Paulo (GRU) is the most affordable 1-stop option, with an average round-trip price of C$ 1,230.

What’s the fastest layover option from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

Shortest average travel time for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 14h 00m.

Which airport typically offers the quickest layover for flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

Average layover duration for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Sao Paulo (GRU) offer the fastest connection on this route, with an average layover time of 2h 02m.

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

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 85 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.

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 18 June 2026.
Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires, such as Copa Airlines,LATAM Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,569 reviews
Check prices

Boarding

7.8

Crew

8.1

Entertainment

6.8

Overall

7.6

Comfort

7.4

Food

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines
Copa Airlines
7.6
Good
1,569 reviews
Copa Airlines
7.6
Good
1,569 reviews
Check prices

Boarding

7.8

Crew

8.1

Entertainment

6.8

Overall

7.6

Comfort

7.4

Food

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines
LATAM Airlines
7.4
Good
1,933 reviews
Copa Airlines
7.6
Good
1,569 reviews
Check prices

Boarding

7.8

Crew

8.1

Entertainment

6.8

Overall

7.6

Comfort

7.4

Food

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines
United Airlines
7.4
Good
9,848 reviews
Copa Airlines
7.6
Good
1,569 reviews
Check prices

Boarding

7.8

Crew

8.1

Entertainment

6.8

Overall

7.6

Comfort

7.4

Food

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines
Air Canada
7.1
Good
11,200 reviews
Copa Airlines
7.6
Good
1,569 reviews
Check prices

Boarding

7.8

Crew

8.1

Entertainment

6.8

Overall

7.6

Comfort

7.4

Food

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines
Avianca
6.5
Okay
2,531 reviews
Copa Airlines
7.6
Good
1,569 reviews
Check prices

Boarding

7.8

Crew

8.1

Entertainment

6.8

Overall

7.6

Comfort

7.4

Food

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines

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.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

    There are many flights that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires in 16h. Fly via Copa Airlines or Delta to get the fastest option. There are 9051 km between Montreal Pierre Elliott Trudeau Intl Airport and Buenos Aires. Both multi-stop and direct flights can be found to your destination and back.

  • 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$ 570. Other airlines that can offer you cheap pricing are Arajet, from C$ 841, and LATAM Airlines, from C$ 997. These flights start at 53% lower than the current average price 3 months from now.

  • 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, June is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires (average of C$ 452). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires in May is currently the most expensive (average of C$ 997). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Pierre Elliott Trudeau Intl to Buenos Aires

Discover the top 7 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 18 June 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 570AverageC$ 1,200FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
ArajetCheapestC$ 841AverageC$ 1,160FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
LATAM AirlinesCheapestC$ 997AverageC$ 1,365FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
AviancaCheapestC$ 1,061AverageC$ 1,367FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Copa AirlinesCheapestC$ 1,061AverageC$ 1,234FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
Air CanadaCheapestC$ 1,065AverageC$ 1,192FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 1,101AverageC$ 1,447FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Pierre Elliott Trudeau Intl to Buenos Aires, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Pierre Elliott Trudeau Intl to Buenos Aires by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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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