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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires from C$ 505

YUL — BUE
13 Nov — 20 Nov1
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

Tue 17/112:24 p.m. -
2 stops16h 16m
Tue 15/1211:59 p.m. -
2 stops24h 49m
Deal found 10/10C$ 1,015
Mon 23/119:20 p.m. -
2 stops39h 45m
Tue 8/1211:00 a.m. -
1 stop15h 15m
Deal found 13/10C$ 1,023
Mon 23/114:45 p.m. -
2 stops36h 35m
Wed 2/1211:55 p.m. -
2 stops39h 33m
Deal found 13/10C$ 1,034
Wed 18/116:00 a.m. -
2 stops23h 20m
Wed 25/1110:05 p.m. -
2 stops23h 43m
Deal found 14/10C$ 1,036
Mon 9/117:00 a.m. -
1 stop15h 05m
Tue 8/1211:00 a.m. -
1 stop15h 15m
Deal found 10/10C$ 1,059
Fri 13/117:00 a.m. -
2 stops24h 20m
Tue 15/1210:05 p.m. -
2 stops23h 43m
Deal found 12/10C$ 1,074
Thu 19/117:00 a.m. -
2 stops22h 20m
Mon 23/1111:55 p.m. -
2 stops23h 22m
Deal found 14/10C$ 1,076
Sun 22/117:33 a.m. -
2 stops23h 07m
Wed 2/129:10 p.m. -
2 stops18h 34m
Deal found 13/10C$ 1,113
Fri 13/117:00 a.m. -
2 stops24h 20m
Wed 9/1210:05 p.m. -
2 stops19h 11m
Deal found 12/10C$ 1,114
Mon 30/117:00 a.m. -
2 stops24h 20m
Mon 7/1211:55 p.m. -
2 stops47h 47m
Deal found 14/10C$ 1,126
Wed 25/118:25 a.m. -
2 stops24h 55m
Wed 2/129:30 p.m. -
2 stops28h 45m
Deal found 11/10C$ 1,235
Mon 16/117:00 a.m. -
3 stops33h 20m
Mon 23/1111:50 a.m. -
3 stops31h 37m
Deal found 14/10C$ 1,242

Find flight deals from Pierre Elliott Trudeau Intl to Buenos Aires

Round-trip from

C$ 1,015

One-way from

C$ 505

Popular in

December

Cheapest in

May

Average price

C$ 1,251
American Airlines
  • American Airlines
  • 17/11-15/12
  • 4 total stops
  • 41h 05m total
  • Montreal to Buenos Aires
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United Airlines
  • United Airlines
  • 27/11-31/12
  • 2 total stops
  • 23h 20m total
  • Montreal to Buenos Aires
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 111 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires that are best for you.

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Price

Cheapest round-trip

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - EZE Buenos Aires Ministro Pistarini

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 19/1

6:00 a.m.-7:20 a.m.

2 stops23h 20m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 505

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - EZE Buenos Aires Ministro Pistarini

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sat 23/1

4:45 p.m.-7:20 a.m.

2 stops36h 35m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 505

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - EZE Buenos Aires Ministro Pistarini

YULEZE

Montreal Pierre Elliott Trudeau Intl

Fri 27/11

6:00 a.m.-7:20 a.m.

2 stops23h 20m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 505

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - EZE Buenos Aires Ministro Pistarini

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sat 14/11

7:00 a.m.-8:40 a.m.

2 stops23h 40m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 514

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - EZE Buenos Aires Ministro Pistarini

YULEZE

Montreal Pierre Elliott Trudeau Intl

Thu 12/11

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

2 stops49h 20m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 515

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - EZE Buenos Aires Ministro Pistarini

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 18/1

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

2 stops22h 20m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 545

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - EZE Buenos Aires Ministro Pistarini

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 20/1

4:45 p.m.-7:20 a.m.

2 stops36h 35m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 546

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - EZE Buenos Aires Ministro Pistarini

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sat 27/2

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

2 stops24h 20m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 546

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - EZE Buenos Aires Ministro Pistarini

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 1/3

3:00 p.m.-7:20 a.m.

2 stops38h 20m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 546

MontrealBuenos Aires

YUL Montreal Pierre Elliott Trudeau Intl - AEP Buenos Aires Jorge Newbery

YULAEP

Montreal Pierre Elliott Trudeau Intl

Sun 7/2

6:55 p.m.-7:30 a.m.

1 stop34h 35m

Buenos Aires Jorge Newbery

Wed 31/12

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

Nonstop0h 00m

C$ 619

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/10

Showing 1-10 of 44 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

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, September is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires (average of C$ 1,143). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires in December is currently the most expensive (average of C$ 1,622). 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?

Airfare is below average for this route at the moment.
Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires flights typically cost between C$ 1,214 and C$ 1,285 in November.
The cheapest round-trip price found within the last 5 days was C$ 1,015 on American Airlines (17 Nov-15 Dec).

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

Panama City (PTY) – chosen by Cheapflights users on 34% 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?

Punta Cana (PUJ) is the most affordable 1-stop option, with an average round-trip price of C$ 1,099.

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

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?

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 2h 17m.

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 4 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

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
1,549 reviews
Check prices

Comfort

7.4

Food

6.9

Entertainment

6.9

Crew

8.1

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2026

BOS - PTY

Arrived in Panama 🇵🇦 city, and had connection to next flight, flight was delayed alreadyand they lost my bag, I have no clothes and still cannot locate my bag ot give me information. Im in meddelin, Colombia and cannot believe they cannot locate my luggage? They sent me a email for apologizing, but where is my luggage? I was in business class, and the service of contacting me is horrible.
Copa Airlines
7.6
Good
1,549 reviews
Copa Airlines
7.6
Good
1,549 reviews
Check prices

Comfort

7.4

Food

6.9

Entertainment

6.9

Crew

8.1

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2026

BOS - PTY

Arrived in Panama 🇵🇦 city, and had connection to next flight, flight was delayed alreadyand they lost my bag, I have no clothes and still cannot locate my bag ot give me information. Im in meddelin, Colombia and cannot believe they cannot locate my luggage? They sent me a email for apologizing, but where is my luggage? I was in business class, and the service of contacting me is horrible.
LATAM Airlines
7.4
Good
1,972 reviews
Copa Airlines
7.6
Good
1,549 reviews
Check prices

Comfort

7.4

Food

6.9

Entertainment

6.9

Crew

8.1

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2026

BOS - PTY

Arrived in Panama 🇵🇦 city, and had connection to next flight, flight was delayed alreadyand they lost my bag, I have no clothes and still cannot locate my bag ot give me information. Im in meddelin, Colombia and cannot believe they cannot locate my luggage? They sent me a email for apologizing, but where is my luggage? I was in business class, and the service of contacting me is horrible.
United Airlines
7.4
Good
10,362 reviews
Copa Airlines
7.6
Good
1,549 reviews
Check prices

Comfort

7.4

Food

6.9

Entertainment

6.9

Crew

8.1

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2026

BOS - PTY

Arrived in Panama 🇵🇦 city, and had connection to next flight, flight was delayed alreadyand they lost my bag, I have no clothes and still cannot locate my bag ot give me information. Im in meddelin, Colombia and cannot believe they cannot locate my luggage? They sent me a email for apologizing, but where is my luggage? I was in business class, and the service of contacting me is horrible.
Air Canada
7.1
Good
11,769 reviews
Copa Airlines
7.6
Good
1,549 reviews
Check prices

Comfort

7.4

Food

6.9

Entertainment

6.9

Crew

8.1

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2026

BOS - PTY

Arrived in Panama 🇵🇦 city, and had connection to next flight, flight was delayed alreadyand they lost my bag, I have no clothes and still cannot locate my bag ot give me information. Im in meddelin, Colombia and cannot believe they cannot locate my luggage? They sent me a email for apologizing, but where is my luggage? I was in business class, and the service of contacting me is horrible.
Avianca
6.5
Okay
2,553 reviews
Copa Airlines
7.6
Good
1,549 reviews
Check prices

Comfort

7.4

Food

6.9

Entertainment

6.9

Crew

8.1

Boarding

7.8

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Oct 2026

BOS - PTY

Arrived in Panama 🇵🇦 city, and had connection to next flight, flight was delayed alreadyand they lost my bag, I have no clothes and still cannot locate my bag ot give me information. Im in meddelin, Colombia and cannot believe they cannot locate my luggage? They sent me a email for apologizing, but where is my luggage? I was in business class, and the service of contacting me is horrible.

Related info for your journey

  • 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 22h. Fly via United 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$ 595. Other airlines that can offer you cheap pricing are Copa Airlines, from C$ 704, and Arajet, from C$ 719. These flights start at 52% 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 Avianca (C$ 532), Air Canada (C$ 570), and United Airlines (C$ 694).

  • 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, September is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires (average of C$ 1,143). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires in December is currently the most expensive (average of C$ 1,622). 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

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

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 595AverageC$ 1,217FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Copa AirlinesCheapestC$ 704AverageC$ 1,242FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
ArajetCheapestC$ 719AverageC$ 1,225FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
Air CanadaCheapestC$ 743AverageC$ 1,410FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 1,117AverageC$ 1,386FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
AviancaCheapestC$ 1,133AverageC$ 1,387FlexibilityNo cancel feeOn-time71%
Search Avianca flights
LATAM AirlinesCheapestC$ 1,150AverageC$ 1,385FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

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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?

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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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