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

According to our current data, Arajet (C$ 889), LATAM Airlines (C$ 975), and Avianca (C$ 1,032) offers the cheapest pricing from Montreal to Buenos Aires. These flights start at 28% 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$ 520 on Air Canada. Other airlines that offer cheap prices include LATAM Airlines from C$ 527 and Avianca from C$ 535 one-way.

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 to Buenos Aires?

Consider Air Canada, Avianca or Copa Airlines when booking your flight. These represent the most popular airlines when flying from Montreal to Buenos Aires.

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

Flights from Montreal to Buenos Aires are generally found to be more expensive on Wednesday. This shouldn't discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Buenos Aires.

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

Users have found that booking a flight from Montreal to Buenos Aires at least 53 days early can save you up to 93% on average compared to booking a flight this week. If booking 53 days before your flight isn’t an option for you, users have found flights from Montreal to Buenos Aires for as little as C$ 1,093 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 1,093 for flights departing within the next 3 days.

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

Flights from Montreal to Buenos Aires lean towards being more expensive in December. Prices are generally better when you fly from Montreal to Buenos Aires in November, with the cheapest ticket starting at C$ 554.

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.

C$ 499+ Flights from Montreal to Buenos Aires

Q: How much does it cost to fly round-trip from Montreal to Buenos Aires?

Airfare is below average for this route at the moment. Montreal to Buenos Aires flights typically cost between C$ 1,100 and C$ 1,395 in December. The cheapest round-trip price found within the last 3 days was C$ 889 on Arajet (31 Dec-26 Feb).

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

Cheap flight deals from Montreal to Buenos Aires

Round-trip from	C$ 889
One-way from	C$ 499
Popular in	December
Cheapest in	November
Average price	C$ 1,287

Arajet
31/12-26/2
2 total stops
30h 28m total
Montreal to Buenos Aires

Search Deals

3/9
3 total stops
32h 27m total
Montreal to Buenos Aires

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (C$ 134 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 47 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

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 29 July 2025.

Wed 31/126:45 a.m.YUL - EZE

1 stop15h 20mArajet

Thu 26/211:07 a.m.EZE - YUL

1 stop15h 08mArajet

Deal found 28/7C$ 889

Mon 3/1112:36 p.m.YUL - AEP

2 stops19h 54mLATAM Airlines

Tue 11/115:15 p.m.AEP - YUL

2 stops25h 49mLATAM Airlines

Deal found 28/7C$ 975

Mon 27/106:41 p.m.YUL - EZE

2 stops18h 19mLATAM Airlines

Thu 6/117:55 a.m.EZE - YUL

2 stops18h 03mLATAM Airlines

Deal found 28/7C$ 977

Mon 1/128:35 a.m.YUL - EZE

1 stop23h 00mMultiple Airlines

Mon 15/1211:00 a.m.EZE - YUL

1 stop31h 59mMultiple Airlines

Deal found 27/7C$ 1,022

Wed 8/1011:25 p.m.YUL - EZE

1 stop23h 45mAvianca

Fri 24/106:50 a.m.EZE - YUL

1 stop16h 15mAvianca

Deal found 28/7C$ 1,032

Thu 18/98:41 a.m.YUL - EZE

1 stop15h 14mCopa Airlines

Wed 1/1010:07 a.m.EZE - YUL

1 stop15h 32mCopa Airlines

Deal found 28/7C$ 1,047

Mon 10/1110:00 p.m.YUL - AEP

1 stop29h 40mAvianca

Mon 24/117:00 a.m.AEP - YUL

1 stop15h 35mAvianca

Deal found 29/7C$ 1,051

Mon 10/116:30 p.m.YUL - AEP

2 stops22h 10mMultiple Airlines

Mon 24/113:40 p.m.AEP - YUL

2 stops21h 59mMultiple Airlines

Deal found 27/7C$ 1,060

Mon 6/102:20 p.m.YUL - EZE

2 stops40h 40mUnited Airlines

Tue 21/109:00 p.m.EZE - YUL

2 stops20h 10mUnited Airlines

Deal found 28/7C$ 1,067

Thu 18/99:50 p.m.YUL - EZE

2 stops39h 40mAir Canada

Wed 1/104:35 p.m.EZE - YUL

1 stop14h 40mAir Canada

Deal found 28/7C$ 1,100

Tue 11/119:28 a.m.YUL - EZE

2 stops21h 32mDelta

Tue 25/118:55 p.m.EZE - YUL

1 stop16h 49mDelta

Deal found 28/7C$ 1,107

Best flights from Montreal to Buenos Aires
Discover carefully curated flight deals from Montreal to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 29 July 2025.

Wed 31/126:45 a.m.YUL - EZE

1 stop15h 20mArajet

Thu 26/211:07 a.m.EZE - YUL

1 stop15h 08mArajet

Deal found 28/7C$ 889

Mon 3/1112:36 p.m.YUL - AEP

2 stops19h 54mLATAM Airlines

Tue 11/115:15 p.m.AEP - YUL

2 stops25h 49mLATAM Airlines

Deal found 28/7C$ 975

Mon 1/128:35 a.m.YUL - EZE

1 stop23h 00mMultiple Airlines

Mon 15/1211:00 a.m.EZE - YUL

1 stop31h 59mMultiple Airlines

Deal found 27/7C$ 1,022

Wed 8/1011:25 p.m.YUL - EZE

1 stop23h 45mAvianca

Thu 23/101:40 a.m.EZE - YUL

1 stop21h 25mAvianca

Deal found 28/7C$ 1,032

Thu 18/98:41 a.m.YUL - EZE

1 stop15h 14mCopa Airlines

Wed 1/1010:07 a.m.EZE - YUL

1 stop15h 32mCopa Airlines

Deal found 28/7C$ 1,047

Tue 20/16:30 a.m.YUL - EZE

2 stops22h 50mUnited Airlines

Tue 3/211:55 p.m.EZE - YUL

2 stops23h 06mUnited Airlines

Deal found 27/7C$ 1,067

Thu 18/99:50 p.m.YUL - EZE

2 stops39h 40mAir Canada

Wed 1/104:35 p.m.EZE - YUL

1 stop14h 40mAir Canada

Deal found 28/7C$ 1,100

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

1 stop24h 00mDelta

Thu 11/1210:50 p.m.EZE - YUL

1 stop27h 03mDelta

Deal found 28/7C$ 1,107

Mon 27/106:41 p.m.YUL - EZE

2 stops18h 19mLATAM Airlines

Thu 6/117:55 a.m.EZE - YUL

2 stops18h 03mLATAM Airlines

Deal found 28/7C$ 977

Mon 10/1110:00 p.m.YUL - AEP

1 stop29h 40mAvianca

Mon 24/117:00 a.m.AEP - YUL

1 stop15h 35mAvianca

Deal found 29/7C$ 1,051

Mon 10/116:30 p.m.YUL - AEP

2 stops22h 10mMultiple Airlines

Mon 24/113:40 p.m.AEP - YUL

2 stops21h 59mMultiple Airlines

Deal found 27/7C$ 1,060

Last-minute flights from Montreal to Buenos Aires
Discover last-minute flight deals from Montreal to Buenos Aires. Data last updated 29 July 2025 and is based on user searches.

Tue 5/89:45 a.m.YUL - EZE

2 stops45h 15mUnited Airlines

Thu 14/89:00 p.m.EZE - YUL

2 stops21h 26mUnited Airlines

Deal found 27/7C$ 1,497

Tue 5/87:00 a.m.YUL - EZE

2 stops22h 10mLATAM Airlines

Tue 12/812:58 p.m.EZE - YUL

2 stops23h 39mLATAM Airlines

Deal found 27/7C$ 1,955

Tue 5/89:30 a.m.YUL - EZE

2 stops19h 15mAvianca

Mon 11/81:40 a.m.EZE - YUL

2 stops17h 20mAvianca

Deal found 27/7C$ 2,251

Tue 5/811:40 a.m.YUL - EZE

1 stop30h 50mWorldTicket

Thu 14/811:07 a.m.EZE - YUL

1 stop35h 23mWorldTicket

Deal found 27/7C$ 2,317

Wed 6/86:59 p.m.YUL - EZE

2 stops33h 56mDelta

Wed 13/88:10 p.m.EZE - YUL

2 stops28h 18mDelta

Deal found 27/7C$ 1,156

Wed 6/85:10 p.m.YUL - EZE

2 stops20h 20mAir Canada

Wed 13/84:35 p.m.EZE - YUL

3 stops23h 44mAir Canada

Deal found 27/7C$ 2,947

Wed 6/810:40 p.m.YUL - AEP

1 stop17h 40mAir Canada

Thu 14/81:40 p.m.AEP - YUL

1 stop17h 35mAir Canada

Deal found 27/7C$ 4,336

Thu 7/88:42 a.m.YUL - EZE

1 stop15h 02mMultiple Airlines

Thu 14/812:58 p.m.EZE - YUL

2 stops33h 32mMultiple Airlines

Deal found 27/7C$ 1,508

Thu 7/88:42 a.m.YUL - EZE

1 stop15h 02mCopa Airlines

Thu 14/82:32 p.m.EZE - YUL

1 stop35h 07mCopa Airlines

Deal found 27/7C$ 1,509

Thu 7/88:42 a.m.YUL - AEP

2 stops17h 58mMultiple Airlines

Wed 13/87:00 a.m.AEP - YUL

1 stop16h 05mMultiple Airlines

Deal found 27/7C$ 1,653

Thu 7/812:46 p.m.YUL - AEP

2 stops26h 19mLATAM Airlines

Tue 12/83:40 p.m.AEP - YUL

2 stops20h 57mLATAM Airlines

Deal found 27/7C$ 1,720

Fri 22/84:55 p.m.YUL - EZE

2 stops15h 50mDelta

Tue 9/97:40 a.m.EZE - YUL

2 stops30h 58mDelta

Deal found 28/7C$ 1,144

One-way flights from Montreal to Buenos Aires
Search for one-way flight options from Montreal to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 29 July 2025.

Wed 3/92:48 p.m.YUL - AEP

3 stops32h 27mMultiple Airlines

Deal found 28/7C$ 499

Sat 29/118:55 p.m.YUL - EZE

1 stop16h 15mAir Canada

Deal found 28/7C$ 520

Wed 3/92:48 p.m.YUL - EZE

2 stops31h 37mLATAM Airlines

Deal found 28/7C$ 527

Wed 3/92:48 p.m.YUL - AEP

2 stops39h 52mLATAM Airlines

Deal found 28/7C$ 528

Wed 3/911:25 p.m.YUL - EZE

1 stop14h 55mAvianca

Deal found 28/7C$ 535

Wed 10/97:00 a.m.YUL - EZE

3 stops36h 25mMultiple Airlines

Deal found 27/7C$ 536

Wed 3/911:25 p.m.YUL - AEP

1 stop29h 15mAvianca

Deal found 28/7C$ 545

Thu 11/97:00 a.m.YUL - EZE

1 stop25h 45mDelta

Deal found 28/7C$ 560

Tue 14/108:41 a.m.YUL - EZE

1 stop18h 38mCopa Airlines

Deal found 28/7C$ 567

Sat 9/89:45 a.m.YUL - EZE

2 stops45h 15mUnited Airlines

Deal found 28/7C$ 735

Tue 25/118:55 p.m.YUL - AEP

1 stop18h 15mAir Canada

Deal found 28/7C$ 893

Fly from

Fly to

Route

Depart

Return

Price

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

6:45 a.m.-12:05 a.m.

1 stop15h 20m

Buenos Aires Ministro Pistarini

Thu 26/2

11:07 a.m.-12:15 a.m.

1 stop15h 08m

C$ 889

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 3/11

12:36 p.m.-10:30 a.m.

2 stops19h 54m

Buenos Aires Jorge Newbery

Tue 11/11

5:15 p.m.-5:04 p.m.

2 stops25h 49m

C$ 975

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 27/10

6:41 p.m.-2:00 p.m.

2 stops18h 19m

Buenos Aires Ministro Pistarini

Thu 6/11

7:55 a.m.-11:58 p.m.

2 stops18h 03m

C$ 977

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

8:35 a.m.-9:35 a.m.

1 stop23h 00m

Buenos Aires Ministro Pistarini

Mon 15/12

11:00 a.m.-4:59 p.m.

1 stop31h 59m

C$ 1,022

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 8/10

11:25 p.m.-12:10 a.m.

1 stop23h 45m

Buenos Aires Ministro Pistarini

Thu 23/10

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

1 stop21h 25m

C$ 1,032

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Thu 18/9

8:41 a.m.-12:55 a.m.

1 stop15h 14m

Buenos Aires Ministro Pistarini

Wed 1/10

10:07 a.m.-12:39 a.m.

1 stop15h 32m

C$ 1,047

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

10:00 p.m.-5:40 a.m.

1 stop29h 40m

Buenos Aires Jorge Newbery

Mon 24/11

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

1 stop15h 35m

C$ 1,051

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

6:30 p.m.-6:40 p.m.

2 stops22h 10m

Buenos Aires Jorge Newbery

Mon 24/11

3:40 p.m.-11:39 a.m.

2 stops21h 59m

C$ 1,060

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 20/1

6:30 a.m.-7:20 a.m.

2 stops22h 50m

Buenos Aires Ministro Pistarini

Tue 3/2

11:55 p.m.-9:01 p.m.

2 stops23h 06m

C$ 1,067

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Thu 18/9

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

2 stops39h 40m

Buenos Aires Ministro Pistarini

Wed 1/10

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

1 stop14h 40m

C$ 1,100

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Showing 1-10 of 22 results

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?

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?

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?

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.

How much does it cost to fly round-trip from Montreal to Buenos Aires?

What’s the top layover airport for flights from Montreal to Buenos Aires?

Sao Paulo (GRU) – chosen by Cheapflights users on 48% of one-stop itineraries from Montreal to Buenos Aires on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to Buenos Aires?

Bogotá (BOG) is the most affordable 1-stop option, with an average round-trip price of C$ 1,083.

What’s the fastest layover option from Montreal to Buenos Aires?

Flights via Sao Paulo (GRU) have the shortest average one-way travel time for 1-stop routes: 4h 54m.

Which airport typically offers the quickest layover for flights from Montreal to Buenos Aires?

Flights via Punta Cana (PUJ) offer the fastest connection on this route, with an average layover time of 1h 33m.

Reviews of airlines servicing Buenos Aires

Get a feel of what it's like to fly with Delta,LATAM Airlines, andCopa Airlines from Montreal to Buenos Aires by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

LATAM Airlines

7.5

Good

1,821 reviews

Delta

8.0

Very good

7,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

Copa Airlines

7.5

Good

1,493 reviews

Delta

8.0

Very good

7,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

United Airlines

7.4

Good

8,893 reviews

Delta

8.0

Very good

7,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

Air Canada

7.1

Good

9,822 reviews

Delta

8.0

Very good

7,977 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Michael,Jul 2025

AMS - ATL

Related info for your journey

What are the cheapest airlines flying from Montreal to Buenos Aires round-trip?
According to our current data, Arajet (C$ 889), LATAM Airlines (C$ 975), and Avianca (C$ 1,032) offers the cheapest pricing from Montreal to Buenos Aires. These flights start at 28% 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$ 520 on Air Canada. Other airlines that offer cheap prices include LATAM Airlines from C$ 527 and Avianca from C$ 535 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

Top 6 airlines flying from Montreal to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
Arajet	CheapestC$ 688	AverageC$ 1,166	FlexibilityNo cancel fee	On-timeN/A	Search Arajet flights
Avianca	CheapestC$ 696	AverageC$ 1,108	FlexibilityNo cancel fee	On-time71%	Search Avianca flights
Delta	CheapestC$ 866	AverageC$ 1,230	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Copa Airlines	CheapestC$ 1,039	AverageC$ 1,307	FlexibilityNo cancel fee	On-time70%	Search Copa Airlines flights
Air Canada	CheapestC$ 1,084	AverageC$ 1,441	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 1,109	AverageC$ 1,474	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Montreal to Buenos Aires?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to Buenos Aires. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Montreal to Buenos Aires for you. Better yet — we are completely free to use.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Montreal to Buenos Aires from C$ 499

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.

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

Cheap flight deals from Montreal to Buenos Aires

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Montreal to Buenos Aires

Cheapest flights from Montreal to Buenos AiresExplore 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 29 July 2025.

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 29 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montreal to Buenos Aires that are best for you.

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.

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 25 July 2025.

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

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 29 July 2025.

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.

How much does it cost to fly round-trip from Montreal to Buenos Aires?

What’s the top layover airport for flights from Montreal to Buenos Aires?

Share of one-stop round-trip flights from Montreal 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 to Buenos Aires?

Average round-trip fare for 1-stop flights from Montreal 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 to Buenos Aires?

Shortest average travel time for 1-stop one-way flights from Montreal 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 to Buenos Aires?

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

Reviews of airlines servicing Buenos Aires

Get a feel of what it's like to fly with Delta,LATAM Airlines, andCopa Airlines from Montreal to Buenos Aires by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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.

Alternative routes for Montreal to Buenos Aires

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

Top 6 airlines flying from Montreal to Buenos Aires

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 Montreal to Buenos Aires?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 29 July 2025.