How long is the flight from Montreal to Buenos Aires?

For as low as C$ 1,101, Arajet can have you in Buenos Aires from Montreal in 15h 20m. 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$ 579), Copa Airlines (C$ 684), and Arajet (C$ 699) offers the cheapest pricing from Montreal to Buenos Aires. These flights start at 52% lower than the current average price 3 months from now.

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.

What is the cheapest time of day to fly from YMQ to BUE?

When flying from Montreal to Buenos Aires, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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$ 335+ Cheap Flights from Montreal to Buenos Aires

Cheap flight deals from Montreal to Buenos Aires

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 7 September 2026.

Mon 26/106:45 a.m. -

1 stop14h 20m

Thu 19/1111:00 a.m. -

1 stop15h 15m

Deal found 3/9C$ 811

Wed 4/116:45 a.m. -

1 stop15h 20m

Tue 1/1211:00 a.m. -

1 stop15h 15m

Deal found 4/9C$ 865

Wed 11/116:45 a.m. -

1 stop17h 00m

Tue 8/1211:00 a.m. -

1 stop15h 15m

Deal found 4/9C$ 914

Mon 2/116:45 a.m. -

1 stop15h 20m

Tue 1/1211:00 a.m. -

1 stop15h 15m

Deal found 6/9C$ 924

Mon 26/106:45 a.m. -

1 stop14h 20m

Sun 8/118:40 a.m. -

1 stop17h 35m

Deal found 5/9C$ 931

Mon 9/116:45 a.m. -

1 stop15h 20m

Thu 19/1111:00 a.m. -

1 stop15h 15m

Deal found 5/9C$ 938

Mon 26/106:45 a.m. -

1 stop14h 20m

Tue 17/118:40 a.m. -

1 stop17h 35m

Deal found 3/9C$ 950

Mon 26/106:45 a.m. -

1 stop14h 20m

Mon 16/112:45 a.m. -

2 stops23h 30m

Deal found 3/9C$ 959

Mon 30/116:45 a.m. -

1 stop17h 00m

Thu 17/1211:00 a.m. -

1 stop15h 15m

Deal found 7/9C$ 963

Wed 28/106:45 a.m. -

1 stop16h 20m

Thu 19/1111:00 a.m. -

1 stop15h 15m

Deal found 3/9C$ 964

Mon 2/116:45 a.m. -

3 stops35h 55m

Wed 18/119:30 p.m. -

2 stops28h 45m

Deal found 6/9C$ 973

Tue 6/1012:44 p.m. -

3 stops21h 36m

Wed 4/119:30 p.m. -

2 stops28h 45m

Deal found 6/9C$ 1,049

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 7 September 2026.

Wed 4/116:45 a.m. -

1 stop15h 20m

Mon 30/119:15 p.m. -

1 stop29h 00m

Deal found 4/9C$ 1,101

Mon 18/112:45 p.m. -

1 stop18h 55m

Mon 8/211:35 p.m. -

1 stop19h 28m

Deal found 2/9C$ 1,164

Sun 17/12:45 p.m. -

1 stop14h 50m

Fri 12/211:35 p.m. -

2 stops25h 35m

Deal found 2/9C$ 1,164

Sat 16/17:00 a.m. -

1 stop22h 35m

Mon 8/211:35 p.m. -

1 stop19h 28m

Deal found 2/9C$ 1,164

Thu 21/112:45 p.m. -

1 stop16h 50m

Fri 12/211:35 p.m. -

1 stop26h 16m

Deal found 2/9C$ 1,164

Tue 19/17:00 a.m. -

1 stop22h 35m

Thu 11/29:30 p.m. -

1 stop21h 33m

Deal found 2/9C$ 1,164

Thu 12/117:00 a.m. -

2 stops31h 00m

Wed 18/115:35 p.m. -

2 stops20h 02m

Deal found 5/9C$ 1,168

Tue 19/12:25 p.m. -

1 stop18h 30m

Wed 3/28:05 p.m. -

1 stop19h 30m

Deal found 5/9C$ 1,168

Thu 12/112:30 p.m. -

2 stops17h 20m

Tue 17/118:05 p.m. -

2 stops23h 22m

Deal found 5/9C$ 1,168

Mon 9/117:00 a.m. -

2 stops46h 40m

Wed 25/115:35 p.m. -

2 stops46h 01m

Deal found 3/9C$ 1,219

Mon 9/117:00 a.m. -

2 stops46h 40m

Tue 1/125:35 p.m. -

2 stops27h 19m

Deal found 3/9C$ 1,219

Sat 14/112:43 p.m. -

2 stops41h 07m

Sat 5/1212:20 p.m. -

2 stops25h 16m

Deal found 4/9C$ 1,220

Sun 17/12:45 p.m. -

1 stop14h 50m

Sun 18/43:55 a.m. -

2 stops32h 49m

Deal found 4/9C$ 1,220

Thu 12/117:48 p.m. -

2 stops36h 02m

Fri 4/129:30 p.m. -

2 stops20h 29m

Deal found 4/9C$ 1,220

Fri 13/112:30 p.m. -

2 stops17h 20m

Sun 6/129:30 p.m. -

1 stop22h 04m

Deal found 4/9C$ 1,220

Wed 21/1012:44 p.m. -

2 stops41h 56m

Wed 28/105:35 p.m. -

2 stops49h 03m

Deal found 3/9C$ 1,230

Sun 8/117:00 a.m. -

2 stops46h 40m

Wed 18/115:35 p.m. -

2 stops20h 02m

Deal found 5/9C$ 1,260

Thu 22/1012:44 p.m. -

2 stops26h 16m

Mon 26/105:35 p.m. -

2 stops49h 03m

Deal found 3/9C$ 1,276

Tue 20/106:50 p.m. -

2 stops35h 50m

Mon 26/105:35 p.m. -

2 stops49h 03m

Deal found 3/9C$ 1,276

Mon 26/102:28 p.m. -

2 stops40h 12m

Sun 8/118:05 p.m. -

2 stops29h 51m

Deal found 6/9C$ 1,291

Mon 16/117:00 a.m. -

2 stops31h 00m

Fri 20/118:40 a.m. -

2 stops41h 16m

Deal found 6/9C$ 1,312

Sun 8/117:00 a.m. -

2 stops46h 40m

Tue 17/115:35 p.m. -

2 stops25h 52m

Deal found 5/9C$ 1,338

Sun 18/1012:44 p.m. -

2 stops41h 56m

Wed 28/105:35 p.m. -

2 stops49h 03m

Deal found 3/9C$ 1,389

Fri 16/1012:44 p.m. -

2 stops17h 56m

Wed 28/108:05 p.m. -

2 stops40h 33m

Deal found 3/9C$ 1,389

Find flight deals from Montreal to Buenos Aires

Round-trip from	C$ 811
One-way from	C$ 335
Popular in	July
Cheapest in	August
Average price	C$ 1,130

Arajet
26/10-19/11
2 total stops
29h 35m total
Montreal to Buenos Aires

Search Deals

Arajet
26/10-31/12
1 total stop
14h 20m total
Montreal to Buenos Aires

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (C$ 36 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 42 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

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

Cheapest round-trip

MontrealBuenos Aires

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

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 2/11

6:45 a.m.-8:40 p.m.

3 stops35h 55m

Buenos Aires Jorge Newbery

Wed 31/12

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

Nonstop0h 00m

C$ 387

MontrealBuenos Aires

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

YULEZE

Montreal Pierre Elliott Trudeau Intl

Fri 5/3

6:45 a.m.-6:35 a.m.

1 stop21h 50m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 487

MontrealBuenos Aires

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

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 2/11

6:45 a.m.-1:05 p.m.

2 stops28h 20m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 522

MontrealBuenos Aires

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

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 2/11

6:45 a.m.-9:30 a.m.

1 stop24h 45m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 528

MontrealBuenos Aires

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

YULEZE

Montreal Pierre Elliott Trudeau Intl

Fri 23/10

7:00 a.m.-9:16 a.m.

1 stop25h 16m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 553

MontrealBuenos Aires

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

YULEZE

Montreal Pierre Elliott Trudeau Intl

Thu 4/3

6:45 a.m.-3:45 a.m.

2 stops19h 00m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 591

Quickest round-trip

MontrealBuenos Aires

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

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 14/12

2:30 p.m.-9:32 a.m.

1 stop17h 02m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 596

MontrealBuenos Aires

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

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sat 16/1

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$ 647

MontrealBuenos Aires

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

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 26/10

9:10 a.m.-11:00 a.m.

3 stops24h 50m

Buenos Aires Jorge Newbery

Wed 31/12

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

Nonstop0h 00m

C$ 650

MontrealBuenos Aires

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

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 2/3

9:30 a.m.-9:20 a.m.

2 stops21h 50m

Buenos Aires Ministro Pistarini

Wed 31/12

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

Nonstop0h 00m

C$ 660

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 46 resultsSorted by cheapest first

...

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.

YMQ-BUE

YUL-AEP

YUL-EZE

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

YMQ-BUE

YUL-AEP

YUL-EZE

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

Currently, September is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 1,110). Flying from Montreal to Buenos Aires in December is currently the most expensive (average of C$ 1,403). 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 to Buenos Aires?

Airfare is typical for this route at the moment.

Montreal to Buenos Aires flights typically cost between C$ 606 and C$ 1,227 in October.
The cheapest round-trip price found within the last 5 days was C$ 811 on Arajet (26 Oct-19 Nov).

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

Panama City (PTY) – chosen by Cheapflights users on 32% 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$ 1,016.

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

Booking 4 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.

Reviews of airlines servicing Buenos Aires

Get a feel of what it's like to fly with Copa Airlines,United Airlines, andAir Canada 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

1,548 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Apr 2026

LIM - PTY

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

Copa Airlines

7.6

Good

1,548 reviews

Copa Airlines

7.6

Good

1,548 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Apr 2026

LIM - PTY

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

United Airlines

7.4

Good

10,173 reviews

Copa Airlines

7.6

Good

1,548 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Apr 2026

LIM - PTY

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

Air Canada

7.1

Good

11,593 reviews

Copa Airlines

7.6

Good

1,548 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Apr 2026

LIM - PTY

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

Avianca

6.5

Okay

2,554 reviews

Copa Airlines

7.6

Good

1,548 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Apr 2026

LIM - PTY

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

Related info for your journey

How long is the flight from Montreal to Buenos Aires?
For as low as C$ 1,101, Arajet can have you in Buenos Aires from Montreal in 15h 20m. 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$ 579), Copa Airlines (C$ 684), and Arajet (C$ 699) offers the cheapest pricing from Montreal to Buenos Aires. These flights start at 52% lower than the current average price 3 months from now.
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, September is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 1,110). Flying from Montreal to Buenos Aires in December is currently the most expensive (average of C$ 1,403). 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

Alternative routes

Buenos Aires flight routes

Complete your trip

Direct flights to Argentina

Flights by cabin class

Other flight options

Other flights from Montreal

Popular flights

Alternative routes for Montreal to Buenos Aires

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Top 7 airlines flying from Montreal to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
Delta	CheapestC$ 579	AverageC$ 1,183	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Copa Airlines	CheapestC$ 684	AverageC$ 1,206	FlexibilityNo cancel fee	On-time70%	Search Copa Airlines flights
Arajet	CheapestC$ 699	AverageC$ 1,192	FlexibilityNo cancel fee	On-timeN/A	Search Arajet flights
Air Canada	CheapestC$ 868	AverageC$ 1,310	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 1,086	AverageC$ 1,427	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Avianca	CheapestC$ 1,098	AverageC$ 1,346	FlexibilityNo cancel fee	On-time71%	Search Avianca flights
LATAM Airlines	CheapestC$ 1,118	AverageC$ 1,347	FlexibilityNo cancel fee	On-time81%	Search LATAM 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$ 335

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 7 September 2026.

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 7 September 2026.

Best flights from Montreal to Buenos AiresDiscover 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 7 September 2026.

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 7 September 2026.

Last-minute flights from Montreal to Buenos AiresDiscover last-minute flight deals from Montreal to Buenos Aires. Data last updated 7 September 2026 and is based on user searches.

Discover last-minute flight deals from Montreal to Buenos Aires. Data last updated 7 September 2026 and is based on user searches.

One-way flights from Montreal to Buenos AiresSearch for one-way flight options from Montreal to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

Search for one-way flight options from Montreal to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

Find flight deals from Montreal to Buenos Aires

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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

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

Airfare is typical for this route at the moment.

Montreal to Buenos Aires flights typically cost between C$ 606 and C$ 1,227 in October.The cheapest round-trip price found within the last 5 days was C$ 811 on Arajet (26 Oct-19 Nov).

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.

Panama City (PTY) – chosen by Cheapflights users on 32% of one-stop itineraries from Montreal to Buenos Aires on Cheapflights.

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.

Punta Cana (PUJ) is the most affordable 1-stop option, with an average round-trip price of C$ 1,016.

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.

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 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.

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 to Buenos Aires?

Booking 4 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.

Reviews of airlines servicing Buenos Aires

Get a feel of what it's like to fly with Copa Airlines,United Airlines, andAir Canada 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

How long is the flight from Montreal to Buenos Aires?

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

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.

Other flights to Buenos Aires

Explore flights to Buenos Aires departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 7 September 2026.

Complete your trip

Complete your trip to Buenos Aires by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Argentina

Book a non-stop flight to one of these other cities located in Argentina.

Search flights from Montreal to Buenos Aires by cabin class

Find flights from Montreal to Buenos Aires, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Montreal and Buenos Aires flights

Browse other Montreal and Buenos Aires flight options. Last updated on 7 September 2026.

Other flights from Montreal

Browse through other flights departing from Montreal. Flights are based on user searches made on Cheapflights and were last updated on 7 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 7 airlines flying from Montreal to Buenos Aires

Fly with Cheapflights

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?

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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 7 September 2026.

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 7 September 2026.

Last-minute flights from Montreal to Buenos Aires
Discover last-minute flight deals from Montreal to Buenos Aires. Data last updated 7 September 2026 and is based on user searches.

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 7 September 2026.

Montreal to Buenos Aires flights typically cost between C$ 606 and C$ 1,227 in October.
The cheapest round-trip price found within the last 5 days was C$ 811 on Arajet (26 Oct-19 Nov).