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Cheap flights from Montreal to Buenos Aires from C$ 466

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — BUE
23 Feb — 2 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 24 January 2026.

Sun 29/311:25 p.m.
YUL
-
EZE
1 stop23h 45m
Avianca
Sat 4/41:40 a.m.
EZE
-
YUL
1 stop21h 25m
Avianca
Deal found 23/1C$ 1,092
Sat 7/39:15 a.m.
YUL
-
EZE
2 stops43h 05m
United Airlines
Mon 16/39:05 p.m.
EZE
-
YUL
2 stops25h 12m
United Airlines
Deal found 24/1C$ 1,094
Fri 30/1011:00 a.m.
YUL
-
EZE
2 stops20h 20m
United Airlines
Sun 15/1110:05 p.m.
EZE
-
YUL
2 stops20h 16m
United Airlines
Deal found 23/1C$ 1,095
Sun 8/39:15 a.m.
YUL
-
EZE
2 stops20h 05m
United Airlines
Tue 24/39:05 p.m.
EZE
-
YUL
2 stops19h 11m
United Airlines
Deal found 22/1C$ 1,096
Mon 23/26:00 a.m.
YUL
-
EZE
2 stops23h 20m
United Airlines
Mon 9/310:55 p.m.
EZE
-
YUL
2 stops40h 05m
United Airlines
Deal found 24/1C$ 1,098
Tue 28/46:00 a.m.
YUL
-
EZE
2 stops31h 30m
Multiple Airlines
Thu 7/511:00 a.m.
EZE
-
YUL
1 stop14h 20m
Multiple Airlines
Deal found 22/1C$ 1,099
Tue 24/37:00 a.m.
YUL
-
EZE
2 stops24h 20m
United Airlines
Tue 7/49:00 p.m.
EZE
-
YUL
2 stops25h 26m
United Airlines
Deal found 23/1C$ 1,102
Tue 8/92:30 p.m.
YUL
-
EZE
2 stops18h 15m
Delta
Wed 30/98:10 p.m.
EZE
-
YUL
2 stops20h 51m
Delta
Deal found 22/1C$ 1,103
Tue 15/96:15 p.m.
YUL
-
EZE
1 stop14h 30m
Delta
Thu 1/108:10 p.m.
EZE
-
YUL
1 stop28h 46m
Delta
Deal found 23/1C$ 1,105
Fri 11/96:45 a.m.
YUL
-
EZE
2 stops20h 15m
Multiple Airlines
Thu 1/1011:00 a.m.
EZE
-
YUL
1 stop14h 20m
Multiple Airlines
Deal found 22/1C$ 1,106
Sun 8/37:00 a.m.
YUL
-
EZE
1 stop23h 10m
American Airlines
Tue 24/311:30 p.m.
EZE
-
YUL
2 stops24h 14m
American Airlines
Deal found 24/1C$ 1,107
Tue 24/36:45 p.m.
YUL
-
AEP
2 stops20h 15m
LATAM Airlines
Tue 7/48:05 p.m.
AEP
-
YUL
2 stops22h 26m
LATAM Airlines
Deal found 23/1C$ 1,109

Find flight deals from Montreal to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 January 2026.

Round-trip from

C$ 1,092

One-way from

C$ 466

Popular in

February

Cheapest in

September

Average price

C$ 1,255
Avianca
  • Avianca
  • 29/3-4/4
  • 2 total stops
  • 45h 10m total
  • Montreal to Buenos Aires
Search Deals
Arajet
  • Arajet
  • 9/3
  • 1 total stop
  • 16h 20m total
  • Montreal to Buenos Aires
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 24 January 2026.
Use the filters below to find and compare flights from Montreal to Buenos Aires that are best for you.

Fly from

Montreal

Fly to

Buenos Aires

Route

Depart

Return

Price

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Thu 23/4

8:35 a.m.-12:50 a.m.

1 stop15h 15m

Buenos Aires Ministro Pistarini

Thu 30/4

9:11 a.m.-12:40 a.m.

1 stop16h 29m

C$ 1,096

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

9:15 a.m.-6:20 a.m.

2 stops20h 05m

Buenos Aires Ministro Pistarini

Tue 24/3

9:05 p.m.-3:16 p.m.

2 stops19h 11m

C$ 1,096

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

4:45 p.m.-8:20 a.m.

2 stops38h 35m

Buenos Aires Ministro Pistarini

Sun 15/3

9:05 p.m.-2:00 p.m.

2 stops41h 55m

C$ 1,098

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 23/2

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

2 stops23h 20m

Buenos Aires Ministro Pistarini

Mon 9/3

10:55 p.m.-2:00 p.m.

2 stops40h 05m

C$ 1,098

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 24/3

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

2 stops25h 20m

Buenos Aires Ministro Pistarini

Tue 7/4

9:00 p.m.-9:26 p.m.

2 stops25h 26m

C$ 1,102

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

12:42 p.m.-7:20 a.m.

1 stop17h 38m

Buenos Aires Ministro Pistarini

Tue 24/3

8:55 p.m.-6:35 p.m.

2 stops22h 40m

C$ 1,103

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

7:40 p.m.-9:45 a.m.

2 stops37h 05m

Buenos Aires Ministro Pistarini

Wed 20/5

8:10 p.m.-5:07 p.m.

1 stop21h 57m

C$ 1,103

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Tue 28/4

12:46 p.m.-9:45 a.m.

1 stop19h 59m

Buenos Aires Ministro Pistarini

Sun 17/5

8:10 p.m.-8:43 a.m.

2 stops37h 33m

C$ 1,103

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

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

1 stop14h 00m

Buenos Aires Ministro Pistarini

Wed 20/5

8:10 p.m.-11:58 p.m.

1 stop28h 48m

C$ 1,103

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Tue 24/3

6:45 p.m.-4:00 p.m.

2 stops20h 15m

Buenos Aires Jorge Newbery

Tue 7/4

8:05 p.m.-5:31 p.m.

2 stops22h 26m

C$ 1,109

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/1

Showing 1-10 of 36 results
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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?

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 23 January 2026.

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, May is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 608). Flying from Montreal to Buenos Aires in December is currently the most expensive (average of C$ 1,080). 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?

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 43% 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.

Bogotá (BOG) is the most affordable 1-stop option, with an average round-trip price of C$ 1,042.

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 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?

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 Punta Cana (PUJ) offer the fastest connection on this route, with an average layover time of 1h 24m.

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated 24 January 2026.
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
1,558 reviews
Check prices

Food

6.8

Overall

7.6

Boarding

7.8

Entertainment

6.8

Comfort

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it
Copa Airlines
7.6
Good
1,558 reviews
Copa Airlines
7.6
Good
1,558 reviews
Check prices

Food

6.8

Overall

7.6

Boarding

7.8

Entertainment

6.8

Comfort

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it
LATAM Airlines
7.5
Good
1,914 reviews
Copa Airlines
7.6
Good
1,558 reviews
Check prices

Food

6.8

Overall

7.6

Boarding

7.8

Entertainment

6.8

Comfort

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it
United Airlines
7.4
Good
9,196 reviews
Copa Airlines
7.6
Good
1,558 reviews
Check prices

Food

6.8

Overall

7.6

Boarding

7.8

Entertainment

6.8

Comfort

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it
Air Canada
7.1
Good
10,653 reviews
Copa Airlines
7.6
Good
1,558 reviews
Check prices

Food

6.8

Overall

7.6

Boarding

7.8

Entertainment

6.8

Comfort

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it
Avianca
6.6
Okay
2,493 reviews
Copa Airlines
7.6
Good
1,558 reviews
Check prices

Food

6.8

Overall

7.6

Boarding

7.8

Entertainment

6.8

Comfort

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Maria,Dec 2025

PTY - SLA

Old plain no entertainment , no outlet for cell or computer! And online they said you have all that! Almost 6 hrs looking to the floor..terrible expirencw and I pay a lot of money for it

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?

    For as low as C$ 1,096, Copa Airlines can have you in Buenos Aires from Montreal in 15h 15m. 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, Avianca (C$ 516), Delta (C$ 576), and Copa Airlines (C$ 808) offers the cheapest pricing from Montreal to Buenos Aires. These flights start at 56% 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, May is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 608). Flying from Montreal to Buenos Aires in December is currently the most expensive (average of C$ 1,080). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Montreal to Buenos Aires

Discover the top 6 airlines that operate flights from Montreal to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 24 January 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapestC$ 516AverageC$ 1,111FlexibilityNo cancel feeOn-time71%
Search Avianca flights
DeltaCheapestC$ 576AverageC$ 1,252FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Copa AirlinesCheapestC$ 808AverageC$ 1,187FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
ArajetCheapestC$ 919AverageC$ 1,179FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
Air CanadaCheapestC$ 1,055AverageC$ 1,177FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 1,080AverageC$ 1,442FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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?

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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