How long is the flight from Montreal to Buenos Aires?

For as low as C$ 1,072, Copa Airlines can have you in Buenos Aires from Montreal in 15h 50m. The distance from Montreal to Buenos Aires is about 9051 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

According to our current data, Delta (C$ 883), Avianca (C$ 1,010), and Copa Airlines (C$ 1,060) offers the cheapest pricing from Montreal to Buenos Aires. These flights start at 30% 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$ 514 on Copa Airlines. Other airlines that offer cheap prices include Arajet from C$ 516 and LATAM Airlines from C$ 571 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, Copa Airlines or Avianca when booking your flight. These represent the most popular airlines when flying from Montreal to Buenos Aires.

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$ 479+ Cheap 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$ 1,097 and C$ 1,338 in January. The cheapest round-trip price found within the last 3 days was C$ 1,071 on United Airlines (15 Jan-4 Feb).

Cheapflights Tip: The best prices from Montreal to Buenos Aires are usually found in September or August, booked 87 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

Find flight deals from Montreal to Buenos Aires

Enter your travel dates to find the best prices.

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 27 October 2025.

Tue 28/108:41 a.m.YUL - EZE

1 stop18h 29mCopa Airlines

Tue 4/115:16 a.m.EZE - YUL

1 stop20h 27mCopa Airlines

Deal found 24/10C$ 1,071

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

1 stop15h 50mCopa Airlines

Mon 24/113:57 a.m.EZE - YUL

1 stop21h 46mCopa Airlines

Deal found 27/10C$ 1,072

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

2 stops23h 20mUnited Airlines

Mon 22/1211:55 p.m.EZE - YUL

2 stops47h 22mUnited Airlines

Deal found 25/10C$ 1,085

Wed 5/117:10 a.m.YUL - EZE

1 stop19h 12mCopa Airlines

Thu 13/1110:01 a.m.EZE - YUL

1 stop15h 42mCopa Airlines

Deal found 27/10C$ 1,092

Thu 6/117:10 a.m.YUL - EZE

1 stop15h 50mCopa Airlines

Thu 13/1110:01 a.m.EZE - YUL

1 stop15h 42mCopa Airlines

Deal found 27/10C$ 1,097

Sun 26/1011:00 p.m.YUL - EZE

1 stop24h 35mAvianca

Sun 2/117:30 a.m.EZE - YUL

1 stop15h 05mAvianca

Deal found 25/10C$ 1,100

Wed 26/117:14 a.m.YUL - EZE

2 stops23h 46mAmerican Airlines

Wed 17/1211:59 p.m.EZE - YUL

2 stops24h 59mAmerican Airlines

Deal found 25/10C$ 1,104

Mon 1/127:30 a.m.YUL - EZE

2 stops21h 55mAmerican Airlines

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

2 stops19h 19mAmerican Airlines

Deal found 26/10C$ 1,106

Mon 10/1112:45 p.m.YUL - EZE

1 stop18h 15mDelta

Thu 4/128:55 p.m.EZE - YUL

2 stops28h 37mDelta

Deal found 25/10C$ 1,110

Sun 9/117:00 a.m.YUL - AEP

2 stops22h 55mLATAM Airlines

Wed 3/1212:40 p.m.AEP - YUL

3 stops24h 55mLATAM Airlines

Deal found 26/10C$ 1,117

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

3 stops36h 20mLATAM Airlines

Tue 2/124:05 a.m.EZE - YUL

2 stops21h 54mLATAM Airlines

Deal found 26/10C$ 1,117

Wed 29/108:41 a.m.YUL - EZE

1 stop18h 38mCopa Airlines

Wed 3/125:16 a.m.EZE - YUL

1 stop20h 27mCopa Airlines

Deal found 26/10C$ 1,118

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 27 October 2025.

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

1 stop15h 50mCopa Airlines

Tue 25/115:16 a.m.EZE - YUL

1 stop20h 27mCopa Airlines

Deal found 25/10C$ 1,072

Thu 1/16:00 a.m.YUL - EZE

2 stops25h 20mUnited Airlines

Fri 13/210:05 p.m.EZE - YUL

2 stops25h 12mUnited Airlines

Deal found 26/10C$ 1,086

Wed 1/46:15 p.m.YUL - EZE

2 stops34h 40mDelta

Wed 22/47:45 a.m.EZE - YUL

2 stops34h 22mDelta

Deal found 25/10C$ 1,110

Wed 1/46:15 p.m.YUL - AEP

2 stops23h 20mLATAM Airlines

Wed 22/45:00 p.m.AEP - YUL

2 stops19h 47mLATAM Airlines

Deal found 25/10C$ 1,117

Mon 1/127:00 a.m.YUL - AEP

2 stops35h 40mMultiple Airlines

Sat 7/26:35 p.m.AEP - YUL

3 stops31h 19mMultiple Airlines

Deal found 25/10C$ 1,178

Mon 10/117:10 a.m.YUL - EZE

1 stop15h 50mCopa Airlines

Wed 3/123:41 a.m.EZE - YUL

1 stop22h 02mCopa Airlines

Deal found 26/10C$ 1,072

Thu 15/16:00 a.m.YUL - EZE

2 stops25h 20mUnited Airlines

Fri 6/210:05 p.m.EZE - YUL

2 stops19h 11mUnited Airlines

Deal found 27/10C$ 1,086

Mon 10/1112:45 p.m.YUL - EZE

1 stop18h 15mDelta

Sat 6/1211:55 p.m.EZE - YUL

1 stop19h 30mDelta

Deal found 26/10C$ 1,111

Wed 19/117:10 a.m.YUL - EZE

1 stop15h 43mCopa Airlines

Tue 2/123:41 a.m.EZE - YUL

1 stop22h 02mCopa Airlines

Deal found 26/10C$ 1,072

Sun 18/19:15 a.m.YUL - EZE

2 stops22h 05mUnited Airlines

Wed 4/210:05 p.m.EZE - YUL

2 stops23h 43mUnited Airlines

Deal found 27/10C$ 1,086

Wed 19/111:10 p.m.YUL - AEP

2 stops27h 30mMultiple Airlines

Wed 3/1211:25 a.m.AEP - YUL

3 stops23h 57mMultiple Airlines

Deal found 26/10C$ 1,216

Mon 10/117:10 a.m.YUL - EZE

1 stop15h 50mCopa Airlines

Sun 23/113:57 a.m.EZE - YUL

1 stop21h 46mCopa Airlines

Deal found 26/10C$ 1,072

Wed 11/36:45 a.m.YUL - AEP

2 stops26h 30mMultiple Airlines

Wed 18/35:15 a.m.AEP - YUL

1 stop15h 05mMultiple Airlines

Deal found 26/10C$ 1,236

Sun 8/312:45 p.m.YUL - AEP

2 stops31h 35mMultiple Airlines

Wed 18/35:15 a.m.AEP - YUL

1 stop15h 05mMultiple Airlines

Deal found 26/10C$ 1,248

Thu 15/17:40 a.m.YUL - AEP

2 stops34h 00mMultiple Airlines

Fri 6/28:50 a.m.AEP - YUL

2 stops41h 00mMultiple Airlines

Deal found 26/10C$ 1,285

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

2 stops22h 55mMultiple Airlines

Tue 25/112:55 p.m.AEP - YUL

2 stops22h 40mMultiple Airlines

Deal found 26/10C$ 1,303

Tue 13/16:00 a.m.YUL - AEP

2 stops34h 40mMultiple Airlines

Tue 3/23:55 p.m.AEP - YUL

3 stops30h 40mMultiple Airlines

Deal found 26/10C$ 1,304

Tue 3/310:35 p.m.YUL - AEP

1 stop27h 45mMultiple Airlines

Tue 31/35:10 p.m.AEP - YUL

1 stop27h 10mMultiple Airlines

Deal found 25/10C$ 1,345

Tue 11/1112:45 p.m.YUL - AEP

2 stops20h 35mMultiple Airlines

Sat 6/125:20 a.m.AEP - YUL

1 stop15h 05mMultiple Airlines

Deal found 26/10C$ 1,387

Last-minute flights from Montreal to Buenos Aires
Discover last-minute flight deals from Montreal to Buenos Aires. Data last updated 27 October 2025 and is based on user searches.

Tue 28/108:41 a.m.YUL - EZE

1 stop18h 29mCopa Airlines

Tue 4/115:16 a.m.EZE - YUL

1 stop20h 27mCopa Airlines

Deal found 24/10C$ 1,071

Wed 29/108:41 a.m.YUL - EZE

1 stop18h 38mCopa Airlines

Tue 2/123:41 a.m.EZE - YUL

1 stop22h 02mCopa Airlines

Deal found 26/10C$ 1,118

Wed 5/117:10 a.m.YUL - EZE

1 stop19h 12mCopa Airlines

Thu 13/1110:01 a.m.EZE - YUL

1 stop15h 42mCopa Airlines

Deal found 27/10C$ 1,092

Thu 6/117:10 a.m.YUL - EZE

1 stop15h 50mCopa Airlines

Thu 13/1110:01 a.m.EZE - YUL

1 stop15h 42mCopa Airlines

Deal found 27/10C$ 1,097

Sun 9/117:00 a.m.YUL - AEP

2 stops22h 55mLATAM Airlines

Wed 3/1212:40 p.m.AEP - YUL

3 stops24h 55mLATAM Airlines

Deal found 26/10C$ 1,117

Mon 10/1112:45 p.m.YUL - EZE

1 stop18h 15mDelta

Thu 4/128:55 p.m.EZE - YUL

2 stops28h 37mDelta

Deal found 25/10C$ 1,110

Mon 10/119:15 a.m.YUL - EZE

2 stops20h 05mUnited Airlines

Mon 24/1110:05 p.m.EZE - YUL

2 stops17h 55mUnited Airlines

Deal found 27/10C$ 1,121

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

1 stop15h 50mCopa Airlines

Tue 25/1110:01 a.m.EZE - YUL

1 stop15h 42mCopa Airlines

Deal found 27/10C$ 1,072

Tue 11/1112:45 p.m.YUL - EZE

1 stop18h 15mDelta

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

2 stops18h 00mDelta

Deal found 26/10C$ 1,124

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

3 stops36h 20mLATAM Airlines

Wed 3/127:45 a.m.EZE - YUL

2 stops18h 14mLATAM Airlines

Deal found 26/10C$ 1,117

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

2 stops22h 20mUnited Airlines

Mon 1/1211:55 p.m.EZE - YUL

2 stops40h 05mUnited Airlines

Deal found 25/10C$ 1,100

Wed 26/117:14 a.m.YUL - EZE

2 stops23h 46mAmerican Airlines

Wed 17/1211:59 p.m.EZE - YUL

2 stops24h 59mAmerican Airlines

Deal found 25/10C$ 1,104

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 27 October 2025.

Tue 30/1212:37 p.m.YUL - EZE

2 stops32h 33mMultiple Airlines

Deal found 26/10C$ 509

Tue 25/117:10 a.m.YUL - EZE

1 stop15h 43mCopa Airlines

Deal found 26/10C$ 514

Wed 14/16:45 a.m.YUL - EZE

1 stop15h 20mArajet

Deal found 26/10C$ 516

Tue 25/1112:45 p.m.YUL - AEP

2 stops27h 55mMultiple Airlines

Deal found 26/10C$ 522

Wed 10/127:00 a.m.YUL - AEP

3 stops26h 20mMultiple Airlines

Deal found 25/10C$ 526

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

1 stop15h 50mCopa Airlines

Deal found 25/10C$ 533

Tue 30/1212:37 p.m.YUL - AEP

2 stops29h 03mLATAM Airlines

Deal found 26/10C$ 550

Tue 30/1211:59 a.m.YUL - EZE

1 stop20h 16mDelta

Deal found 26/10C$ 550

Mon 29/126:20 p.m.YUL - EZE

1 stop35h 00mDelta

Deal found 26/10C$ 551

Wed 10/126:45 a.m.YUL - EZE

1 stop15h 20mArajet

Deal found 25/10C$ 557

Fri 26/126:00 a.m.YUL - EZE

2 stops47h 20mUnited Airlines

Deal found 26/10C$ 558

Sun 11/17:00 p.m.YUL - AEP

2 stops24h 20mMultiple Airlines

Deal found 26/10C$ 567

Cheap flight deals from Montreal to Buenos Aires

Round-trip from	C$ 1,071
One-way from	C$ 509
Popular in	December
Cheapest in	September
Average price	C$ 1,251

United Airlines
15/1-4/2
4 total stops
50h 57m total
Montreal to Buenos Aires

Search Deals

30/12
2 total stops
32h 33m total
Montreal to Buenos Aires

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (C$ 156 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 45 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montreal 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

Tue 11/11

7:10 a.m.-1:00 a.m.

1 stop15h 50m

Buenos Aires Ministro Pistarini

Tue 25/11

5:16 a.m.-11:43 p.m.

1 stop20h 27m

C$ 1,072

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

7:10 a.m.-1:00 a.m.

1 stop15h 50m

Buenos Aires Ministro Pistarini

Wed 3/12

3:41 a.m.-11:43 p.m.

1 stop22h 02m

C$ 1,072

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

7:10 a.m.-12:53 a.m.

1 stop15h 43m

Buenos Aires Ministro Pistarini

Tue 2/12

3:41 a.m.-11:43 p.m.

1 stop22h 02m

C$ 1,072

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

7:10 a.m.-1:00 a.m.

1 stop15h 50m

Buenos Aires Ministro Pistarini

Sun 23/11

3:57 a.m.-11:43 p.m.

1 stop21h 46m

C$ 1,072

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Thu 1/1

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

2 stops25h 20m

Buenos Aires Ministro Pistarini

Fri 13/2

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

2 stops25h 12m

C$ 1,086

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

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

2 stops25h 20m

Buenos Aires Ministro Pistarini

Fri 6/2

10:05 p.m.-3:16 p.m.

2 stops19h 11m

C$ 1,086

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 18/1

9:15 a.m.-9:20 a.m.

2 stops22h 05m

Buenos Aires Ministro Pistarini

Wed 4/2

10:05 p.m.-7:48 p.m.

2 stops23h 43m

C$ 1,086

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

6:15 p.m.-5:55 a.m.

2 stops34h 40m

Buenos Aires Ministro Pistarini

Wed 22/4

7:45 a.m.-5:07 p.m.

2 stops34h 22m

C$ 1,110

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

12:45 p.m.-9:00 a.m.

1 stop18h 15m

Buenos Aires Ministro Pistarini

Sat 6/12

11:55 p.m.-5:25 p.m.

1 stop19h 30m

C$ 1,111

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

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

2 stops23h 20m

Buenos Aires Jorge Newbery

Wed 22/4

5:00 p.m.-11:47 a.m.

2 stops19h 47m

C$ 1,117

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/10

Showing 1-10 of 40 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 86 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, July is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 688). Flying from Montreal to Buenos Aires in March is currently the most expensive (average of C$ 1,104). 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 morning could potentially save you up to 19% 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. 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 to Buenos Aires?

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

Sao Paulo (GRU) – chosen by Cheapflights users on 45% of one-stop itineraries from Montreal to Buenos Aires on Cheapflights.

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

Punta Cana (PUJ) is the most affordable 1-stop option, with an average round-trip price of C$ 1,126.

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

Flights via Punta Cana (PUJ) offer the fastest connection on this route, with an average layover time of 1h 36m.

Reviews of airlines servicing Buenos Aires

Get a feel of what it's like to fly with Copa Airlines,LATAM Airlines, andUnited 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.

Copa Airlines

7.6

Good

1,561 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

Copa Airlines

7.6

Good

1,561 reviews

Copa Airlines

7.6

Good

1,561 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Juan Pablo,Sep 2025

PTY - VVI

LATAM Airlines

7.5

Good

1,872 reviews

Copa Airlines

7.6

Good

1,561 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Juan Pablo,Sep 2025

PTY - VVI

United Airlines

7.4

Good

8,999 reviews

Copa Airlines

7.6

Good

1,561 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Juan Pablo,Sep 2025

PTY - VVI

Air Canada

7.1

Good

10,367 reviews

Copa Airlines

7.6

Good

1,561 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Juan Pablo,Sep 2025

PTY - VVI

Avianca

6.6

Okay

2,464 reviews

Copa Airlines

7.6

Good

1,561 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Juan Pablo,Sep 2025

PTY - VVI

Related info for your journey

How long is the flight from Montreal to Buenos Aires?
For as low as C$ 1,072, Copa Airlines can have you in Buenos Aires from Montreal in 15h 50m. The distance from Montreal to Buenos Aires is about 9051 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Montreal to Buenos Aires round-trip?
According to our current data, Delta (C$ 883), Avianca (C$ 1,010), and Copa Airlines (C$ 1,060) offers the cheapest pricing from Montreal to Buenos Aires. These flights start at 30% 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$ 514 on Copa Airlines. Other airlines that offer cheap prices include Arajet from C$ 516 and LATAM Airlines from C$ 571 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, July is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 688). Flying from Montreal to Buenos Aires in March is currently the most expensive (average of C$ 1,104). 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
Delta	CheapestC$ 883	AverageC$ 1,265	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Avianca	CheapestC$ 1,010	AverageC$ 1,154	FlexibilityNo cancel fee	On-time71%	Search Avianca flights
Copa Airlines	CheapestC$ 1,064	AverageC$ 1,300	FlexibilityNo cancel fee	On-time70%	Search Copa Airlines flights
Air Canada	CheapestC$ 1,081	AverageC$ 1,268	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Arajet	CheapestC$ 1,090	AverageC$ 1,269	FlexibilityNo cancel fee	On-timeN/A	Search Arajet flights
United Airlines	CheapestC$ 1,132	AverageC$ 1,496	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.

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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$ 479

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 15/4. 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 September or August, booked 87 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

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 27 October 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 27 October 2025.

Cheap flight deals from Montreal to Buenos Aires

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Best time to book a flight from Montreal to Buenos Aires

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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 24 October 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 27 October 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 Copa Airlines,LATAM Airlines, andUnited 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.

How long is the flight from Montreal to Buenos Aires?

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?

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Alternative routes for Montreal to Buenos Aires

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Top 6 airlines flying from Montreal to Buenos Aires

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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 27 October 2025.