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.

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).

What are the most popular airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires?

Before booking your flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires check out the most popular airlines for this route: Air Canada, Copa Airlines or Avianca.

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.

C$ 509+ Flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires

Q: 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$ 1,102 and C$ 1,323 in January. The cheapest round-trip price found within the last 3 days was C$ 1,071 on Avianca (27 Jan-17 Feb).

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Buenos Aires are usually found in September or August, 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

Round-trip from	C$ 1,071
One-way from	C$ 509
Popular in	December
Cheapest in	September
Average price	C$ 1,191

Avianca
27/1-17/2
3 total stops
43h 45m total
Montreal to Buenos Aires

Search Deals

27/10
3 total stops
38h 05m total
Montreal to Buenos Aires

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (C$ 197 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 56 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Find 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 20 October 2025.

Wed 26/117:10 a.m.YUL - EZE

1 stop15h 50mCopa Airlines

Mon 15/123:41 a.m.EZE - YUL

1 stop22h 02mCopa Airlines

Deal found 19/10C$ 1,081

Wed 19/117:00 a.m.YUL - EZE

2 stops24h 20mUnited Airlines

Mon 8/1210:05 p.m.EZE - YUL

2 stops17h 55mUnited Airlines

Deal found 18/10C$ 1,085

Thu 4/127:00 a.m.YUL - EZE

2 stops22h 20mUnited Airlines

Thu 11/1210:05 p.m.EZE - YUL

2 stops25h 12mUnited Airlines

Deal found 19/10C$ 1,086

Tue 21/108:41 a.m.YUL - EZE

1 stop18h 17mCopa Airlines

Fri 7/1110:01 a.m.EZE - YUL

1 stop15h 42mCopa Airlines

Deal found 19/10C$ 1,091

Mon 17/1110:00 p.m.YUL - EZE

2 stops37h 39mMultiple Airlines

Thu 4/1211:20 a.m.EZE - YUL

1 stop14h 55mMultiple Airlines

Deal found 18/10C$ 1,096

Tue 11/117:10 a.m.YUL - EZE

1 stop15h 43mMultiple Airlines

Sun 7/128:40 a.m.EZE - YUL

1 stop17h 35mMultiple Airlines

Deal found 18/10C$ 1,098

Sat 22/112:13 p.m.YUL - EZE

2 stops39h 07mUnited Airlines

Fri 5/1211:55 p.m.EZE - YUL

2 stops23h 22mUnited Airlines

Deal found 18/10C$ 1,100

Tue 18/119:15 a.m.YUL - EZE

2 stops22h 05mUnited Airlines

Wed 26/1110:05 p.m.EZE - YUL

2 stops19h 11mUnited Airlines

Deal found 19/10C$ 1,102

Fri 14/112:29 p.m.YUL - EZE

2 stops18h 11mAmerican Airlines

Mon 8/1211:20 p.m.EZE - YUL

2 stops17h 50mAmerican Airlines

Deal found 18/10C$ 1,103

Tue 11/117:00 a.m.YUL - EZE

2 stops22h 20mUnited Airlines

Mon 8/1210:05 p.m.EZE - YUL

2 stops19h 11mUnited Airlines

Deal found 18/10C$ 1,105

Mon 1/123:59 p.m.YUL - EZE

2 stops16h 16mAmerican Airlines

Mon 15/128:30 p.m.EZE - YUL

2 stops19h 19mAmerican Airlines

Deal found 19/10C$ 1,106

Fri 14/116:00 a.m.YUL - EZE

2 stops25h 00mDelta

Mon 24/1111:55 p.m.EZE - YUL

1 stop19h 26mDelta

Deal found 18/10C$ 1,110

Best flights from Pierre Elliott Trudeau Intl to Buenos Aires
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 October 2025.

Sun 15/36:00 a.m.YUL - EZE

2 stops25h 20mUnited Airlines

Thu 26/310:55 p.m.EZE - YUL

2 stops47h 12mUnited Airlines

Deal found 18/10C$ 1,085

Tue 17/32:30 p.m.YUL - EZE

2 stops17h 30mDelta

Mon 30/33:55 a.m.EZE - YUL

2 stops32h 49mDelta

Deal found 18/10C$ 1,110

Mon 1/1212:45 p.m.YUL - AEP

2 stops25h 15mLATAM Airlines

Sat 7/25:15 p.m.AEP - YUL

2 stops20h 29mLATAM Airlines

Deal found 19/10C$ 1,235

Thu 4/126:45 a.m.YUL - AEP

3 stops22h 45mMultiple Airlines

Thu 11/122:30 p.m.AEP - YUL

2 stops32h 05mMultiple Airlines

Deal found 19/10C$ 1,379

Fri 14/119:15 a.m.YUL - AEP

2 stops18h 25mAvianca

Mon 8/127:00 a.m.AEP - YUL

1 stop15h 35mAvianca

Deal found 19/10C$ 1,426

Sat 6/126:00 a.m.YUL - EZE

2 stops25h 20mUnited Airlines

Thu 11/1210:05 p.m.EZE - YUL

2 stops25h 12mUnited Airlines

Deal found 19/10C$ 1,102

Fri 14/116:00 a.m.YUL - EZE

2 stops25h 00mDelta

Mon 24/1111:55 p.m.EZE - YUL

1 stop19h 26mDelta

Deal found 18/10C$ 1,110

Sat 14/32:30 p.m.YUL - EZE

2 stops39h 50mDelta

Mon 30/33:55 a.m.EZE - YUL

2 stops32h 49mDelta

Deal found 18/10C$ 1,110

Sun 15/312:45 p.m.YUL - AEP

2 stops20h 45mLATAM Airlines

Wed 1/410:35 a.m.AEP - YUL

2 stops31h 29mLATAM Airlines

Deal found 18/10C$ 1,242

Mon 10/1112:50 p.m.YUL - EZE

2 stops19h 25mDelta

Mon 24/118:55 p.m.EZE - YUL

1 stop16h 45mDelta

Deal found 18/10C$ 1,110

Mon 29/1210:10 a.m.YUL - AEP

2 stops32h 30mMultiple Airlines

Thu 5/22:30 p.m.AEP - YUL

2 stops32h 05mMultiple Airlines

Deal found 18/10C$ 1,409

Mon 6/47:00 a.m.YUL - AEP

2 stops37h 30mLATAM Airlines

Wed 8/48:40 a.m.AEP - YUL

2 stops28h 04mLATAM Airlines

Deal found 18/10C$ 1,306

Sun 15/39:28 a.m.YUL - EZE

2 stops22h 32mDelta

Thu 26/311:55 p.m.EZE - YUL

1 stop18h 09mDelta

Deal found 18/10C$ 1,110

Fri 21/1110:35 p.m.YUL - AEP

1 stop18h 05mMultiple Airlines

Sun 7/122:30 p.m.AEP - YUL

2 stops32h 05mMultiple Airlines

Deal found 19/10C$ 1,431

Thu 19/312:45 p.m.YUL - EZE

2 stops44h 30mDelta

Thu 26/38:55 p.m.EZE - YUL

1 stop15h 49mDelta

Deal found 18/10C$ 1,110

Thu 30/1012:36 p.m.YUL - AEP

2 stops26h 24mLATAM Airlines

Sat 15/115:15 p.m.AEP - YUL

2 stops20h 25mLATAM Airlines

Deal found 19/10C$ 1,441

Tue 27/15:50 p.m.YUL - AEP

1 stop15h 30mMultiple Airlines

Sun 15/21:45 p.m.AEP - YUL

2 stops22h 37mMultiple Airlines

Deal found 19/10C$ 1,445

Sun 2/1112:36 p.m.YUL - EZE

1 stop18h 24mDelta

Sun 16/1110:25 p.m.EZE - YUL

2 stops20h 56mDelta

Deal found 18/10C$ 1,110

Fri 13/210:35 p.m.YUL - AEP

1 stop27h 50mMultiple Airlines

Wed 18/25:15 a.m.AEP - YUL

1 stop15h 05mMultiple Airlines

Deal found 19/10C$ 1,459

Mon 10/119:26 a.m.YUL - EZE

2 stops21h 34mDelta

Thu 4/1211:55 p.m.EZE - YUL

2 stops20h 59mDelta

Deal found 19/10C$ 1,112

Sun 22/311:00 p.m.YUL - AEP

3 stops23h 30mMultiple Airlines

Thu 2/45:10 p.m.AEP - YUL

3 stops29h 41mMultiple Airlines

Deal found 18/10C$ 1,461

Last-minute flights from Pierre Elliott Trudeau Intl to Buenos Aires
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to Buenos Aires. Data last updated 20 October 2025 and is based on user searches.

Tue 21/108:41 a.m.YUL - EZE

1 stop18h 17mCopa Airlines

Fri 7/1110:01 a.m.EZE - YUL

1 stop15h 42mCopa Airlines

Deal found 19/10C$ 1,091

Tue 11/117:10 a.m.YUL - EZE

1 stop15h 43mMultiple Airlines

Sun 7/128:40 a.m.EZE - YUL

1 stop17h 35mMultiple Airlines

Deal found 18/10C$ 1,098

Tue 11/117:00 a.m.YUL - EZE

2 stops22h 20mUnited Airlines

Mon 8/1210:05 p.m.EZE - YUL

2 stops19h 11mUnited Airlines

Deal found 18/10C$ 1,105

Fri 14/112:29 p.m.YUL - EZE

2 stops18h 11mAmerican Airlines

Mon 8/1211:20 p.m.EZE - YUL

2 stops17h 50mAmerican Airlines

Deal found 18/10C$ 1,103

Fri 14/116:00 a.m.YUL - EZE

2 stops25h 00mDelta

Mon 24/1111:55 p.m.EZE - YUL

1 stop19h 26mDelta

Deal found 18/10C$ 1,110

Fri 14/1112:45 p.m.YUL - EZE

1 stop18h 15mDelta

Mon 8/1211:55 p.m.EZE - YUL

1 stop19h 30mDelta

Deal found 19/10C$ 1,112

Mon 17/1110:00 p.m.YUL - EZE

2 stops37h 39mMultiple Airlines

Thu 4/1211:20 a.m.EZE - YUL

1 stop14h 55mMultiple Airlines

Deal found 18/10C$ 1,096

Tue 18/119:15 a.m.YUL - EZE

2 stops22h 05mUnited Airlines

Wed 26/1110:05 p.m.EZE - YUL

2 stops19h 11mUnited Airlines

Deal found 19/10C$ 1,102

Wed 19/117:00 a.m.YUL - EZE

2 stops24h 20mUnited Airlines

Mon 8/1210:05 p.m.EZE - YUL

2 stops17h 55mUnited Airlines

Deal found 18/10C$ 1,085

Sat 22/112:13 p.m.YUL - EZE

2 stops39h 07mUnited Airlines

Fri 5/1211:55 p.m.EZE - YUL

2 stops23h 22mUnited Airlines

Deal found 18/10C$ 1,100

Wed 26/117:10 a.m.YUL - EZE

1 stop15h 50mCopa Airlines

Mon 15/123:41 a.m.EZE - YUL

1 stop22h 02mCopa Airlines

Deal found 19/10C$ 1,081

Wed 26/119:15 a.m.YUL - EZE

2 stops20h 05mUnited Airlines

Tue 16/1210:05 p.m.EZE - YUL

2 stops19h 11mUnited Airlines

Deal found 19/10C$ 1,086

One-way flights from Pierre Elliott Trudeau Intl to Buenos Aires
Search for one-way flight options from Pierre Elliott Trudeau Intl to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 20 October 2025.

Mon 27/1011:00 p.m.YUL - EZE

3 stops38h 05mMultiple Airlines

Deal found 18/10C$ 509

Mon 1/128:00 a.m.YUL - EZE

3 stops43h 10mMultiple Airlines

Deal found 18/10C$ 512

Mon 9/311:00 p.m.YUL - AEP

2 stops35h 30mMultiple Airlines

Deal found 19/10C$ 513

Mon 9/311:00 p.m.YUL - EZE

2 stops37h 39mMultiple Airlines

Deal found 19/10C$ 520

Thu 12/39:55 p.m.YUL - EZE

1 stop16h 15mAir Canada

Deal found 18/10C$ 521

Tue 2/1212:40 p.m.YUL - EZE

2 stops37h 00mMultiple Airlines

Deal found 18/10C$ 524

Fri 9/16:45 a.m.YUL - EZE

2 stops18h 55mMultiple Airlines

Deal found 19/10C$ 526

Mon 27/1011:00 p.m.YUL - AEP

2 stops45h 40mMultiple Airlines

Deal found 18/10C$ 527

Tue 20/17:00 a.m.YUL - EZE

2 stops42h 40mMultiple Airlines

Deal found 18/10C$ 528

Mon 2/210:00 p.m.YUL - EZE

1 stop15h 50mAvianca

Deal found 18/10C$ 530

Thu 12/312:45 p.m.YUL - AEP

3 stops33h 36mMultiple Airlines

Deal found 18/10C$ 531

Tue 11/117:10 a.m.YUL - EZE

1 stop15h 43mCopa Airlines

Deal found 19/10C$ 531

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.

Fly from

Fly to

Route

Depart

Return

Price

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 15/3

6:00 a.m.-8:20 a.m.

2 stops25h 20m

Buenos Aires Ministro Pistarini

Thu 26/3

10:55 p.m.-9:07 p.m.

2 stops47h 12m

C$ 1,085

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sat 6/12

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

2 stops25h 20m

Buenos Aires Ministro Pistarini

Thu 11/12

10:05 p.m.-9:17 p.m.

2 stops25h 12m

C$ 1,102

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 17/3

2:30 p.m.-9:00 a.m.

2 stops17h 30m

Buenos Aires Ministro Pistarini

Mon 30/3

3:55 a.m.-11:44 a.m.

2 stops32h 49m

C$ 1,110

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Fri 14/11

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

2 stops25h 00m

Buenos Aires Ministro Pistarini

Mon 24/11

11:55 p.m.-5:21 p.m.

1 stop19h 26m

C$ 1,110

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sat 14/3

2:30 p.m.-7:20 a.m.

2 stops39h 50m

Buenos Aires Ministro Pistarini

Mon 30/3

3:55 a.m.-11:44 a.m.

2 stops32h 49m

C$ 1,110

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

12:50 p.m.-10:15 a.m.

2 stops19h 25m

Buenos Aires Ministro Pistarini

Mon 24/11

8:55 p.m.-11:40 a.m.

1 stop16h 45m

C$ 1,110

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 15/3

9:28 a.m.-9:00 a.m.

2 stops22h 32m

Buenos Aires Ministro Pistarini

Thu 26/3

11:55 p.m.-5:04 p.m.

1 stop18h 09m

C$ 1,110

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Thu 19/3

12:45 p.m.-10:15 a.m.

2 stops44h 30m

Buenos Aires Ministro Pistarini

Thu 26/3

8:55 p.m.-11:44 a.m.

1 stop15h 49m

C$ 1,110

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 2/11

12:36 p.m.-9:00 a.m.

1 stop18h 24m

Buenos Aires Ministro Pistarini

Sun 16/11

10:25 p.m.-5:21 p.m.

2 stops20h 56m

C$ 1,110

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

9:26 a.m.-9:00 a.m.

2 stops21h 34m

Buenos Aires Ministro Pistarini

Thu 4/12

11:55 p.m.-6:54 p.m.

2 stops20h 59m

C$ 1,112

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/10

Showing 1-10 of 41 results

...

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?

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, July is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires (average of C$ 690). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires in March is currently the most expensive (average of C$ 1,106). 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?

It’s typically best to fly out from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires in the morning. Doing so could potentially save you 19% 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?

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?

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

Sao Paulo (GRU) – chosen by Cheapflights users on 46% 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$ 1,128.

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

Flights via Punta Cana (PUJ) have the shortest average one-way travel time for 1-stop routes: 14h 45m.

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

Flights via Punta Cana (PUJ) offer the fastest connection on this route, with an average layover time of 1h 52m.

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 Delta,Copa Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

7,978 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Stephanie,Sep 2023

LGA - MSN

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Delta

7.9

Good

7,978 reviews

Delta

7.9

Good

7,978 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Stephanie,Sep 2023

LGA - MSN

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Copa Airlines

7.6

Good

1,557 reviews

Delta

7.9

Good

7,978 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Stephanie,Sep 2023

LGA - MSN

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

United Airlines

7.4

Good

8,991 reviews

Delta

7.9

Good

7,978 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Stephanie,Sep 2023

LGA - MSN

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Air Canada

7.1

Good

10,337 reviews

Delta

7.9

Good

7,978 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Stephanie,Sep 2023

LGA - MSN

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Avianca

6.7

Okay

2,457 reviews

Delta

7.9

Good

7,978 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Stephanie,Sep 2023

LGA - MSN

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

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 17h 30m. Fly via United Airlines, Delta, or LATAM Airlines 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$ 885. Other airlines that can offer you cheap pricing are Avianca, from C$ 1,011, and Copa Airlines, from C$ 1,062. These flights start at 31% 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, July is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires (average of C$ 690). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires in March is currently the most expensive (average of C$ 1,106). 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 6 airlines flying from Pierre Elliott Trudeau Intl to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
Delta	CheapestC$ 885	AverageC$ 1,255	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Avianca	CheapestC$ 1,011	AverageC$ 1,155	FlexibilityNo cancel fee	On-time71%	Search Avianca flights
Copa Airlines	CheapestC$ 1,062	AverageC$ 1,311	FlexibilityNo cancel fee	On-time70%	Search Copa Airlines flights
Air Canada	CheapestC$ 1,084	AverageC$ 1,309	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Arajet	CheapestC$ 1,112	AverageC$ 1,271	FlexibilityNo cancel fee	On-timeN/A	Search Arajet flights
United Airlines	CheapestC$ 1,134	AverageC$ 1,529	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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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?

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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires from C$ 509

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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Buenos Aires are usually found in September or August, 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

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Find flight deals from Pierre Elliott Trudeau Intl to Buenos Aires

Cheapest flights from Pierre Elliott Trudeau Intl to Buenos AiresExplore 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 20 October 2025.

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 20 October 2025.

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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.

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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 17 October 2025.

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

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 20 October 2025.

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.

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.

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.

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.

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.

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 Delta,Copa Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Buenos Aires round-trip?

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

How can I 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?

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

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Alternative routes for Pierre Elliott Trudeau Intl to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Pierre Elliott Trudeau Intl to Buenos Aires

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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 20 October 2025.