Cheap flights from Montreal to Buenos Aires from C$ 443
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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — BUE
11 Jan — 18 Jan1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to Buenos Aires are usually found in September or May, booked 87 days in advance, depart on a Wednesday or Sunday and return on a Tuesday
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 12 December 2025.
Wed 10/127:10 a.m.YUL - EZE
1 stop16h 48mCopa Airlines
Tue 16/123:41 a.m.EZE - YUL
1 stop22h 02mCopa Airlines
Deal found 9/12C$ 1,078
Sun 14/126:00 a.m.YUL - EZE
2 stops25h 00mDelta
Wed 24/128:55 p.m.EZE - YUL
1 stop16h 37mDelta
Deal found 10/12C$ 1,134
Wed 10/126:00 a.m.YUL - EZE
2 stops23h 20mDelta
Wed 17/1210:25 p.m.EZE - YUL
1 stop22h 29mDelta
Deal found 9/12C$ 1,135
Mon 22/126:00 a.m.YUL - EZE
2 stops25h 20mUnited Airlines
Sun 4/110:05 p.m.EZE - YUL
2 stops25h 12mUnited Airlines
Deal found 9/12C$ 1,165
Mon 22/126:00 a.m.YUL - EZE
2 stops25h 20mUnited Airlines
Sat 3/110:05 p.m.EZE - YUL
2 stops23h 43mUnited Airlines
Deal found 9/12C$ 1,196
Tue 30/127:00 a.m.YUL - EZE
2 stops24h 00mDelta
Tue 3/28:55 p.m.EZE - YUL
1 stop16h 50mDelta
Deal found 9/12C$ 1,234
Wed 10/126:00 a.m.YUL - EZE
2 stops23h 20mUnited Airlines
Wed 17/1211:55 p.m.EZE - YUL
2 stops23h 47mUnited Airlines
Deal found 9/12C$ 1,255
Tue 16/129:15 a.m.YUL - EZE
2 stops22h 05mUnited Airlines
Sat 3/110:05 p.m.EZE - YUL
2 stops23h 43mUnited Airlines
Deal found 9/12C$ 1,285
Wed 17/128:25 a.m.YUL - EZE
2 stops20h 55mUnited Airlines
Mon 29/1211:55 p.m.EZE - YUL
2 stops36h 15mUnited Airlines
Deal found 9/12C$ 1,316
Tue 23/126:00 a.m.YUL - EZE
2 stops23h 20mUnited Airlines
Tue 13/110:05 p.m.EZE - YUL
2 stops23h 43mUnited Airlines
Deal found 11/12C$ 1,345
Tue 16/126:30 p.m.YUL - EZE
1 stop34h 50mDelta
Fri 26/1211:55 p.m.EZE - YUL
1 stop26h 04mDelta
Deal found 11/12C$ 1,346
Wed 31/127:00 a.m.YUL - EZE
2 stops24h 00mDelta
Mon 19/18:55 p.m.EZE - YUL
1 stop22h 00mDelta
Deal found 9/12C$ 1,357
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 12 December 2025.
Thu 5/26:00 a.m.YUL - EZE
2 stops25h 20mUnited Airlines
Tue 3/310:05 p.m.EZE - YUL
2 stops19h 11mUnited Airlines
Deal found 11/12C$ 1,069
Wed 1/48:35 a.m.YUL - EZE
1 stop16h 55mCopa Airlines
Tue 21/43:52 a.m.EZE - YUL
1 stop21h 48mCopa Airlines
Deal found 11/12C$ 1,072
Mon 20/412:45 p.m.YUL - AEP
2 stops26h 15mLATAM Airlines
Tue 26/58:40 a.m.AEP - YUL
2 stops28h 07mLATAM Airlines
Deal found 11/12C$ 1,248
Wed 4/210:00 p.m.YUL - AEP
1 stop29h 40mAvianca
Mon 27/47:00 a.m.AEP - YUL
1 stop16h 05mAvianca
Deal found 11/12C$ 1,291
Mon 12/16:00 a.m.YUL - AEP
3 stops23h 30mMultiple Airlines
Wed 4/210:55 p.m.AEP - YUL
2 stops27h 20mMultiple Airlines
Deal found 10/12C$ 1,327
Tue 3/27:00 a.m.YUL - EZE
2 stops22h 20mUnited Airlines
Thu 26/211:55 p.m.EZE - YUL
2 stops21h 53mUnited Airlines
Deal found 11/12C$ 1,069
Mon 20/48:35 a.m.YUL - EZE
1 stop16h 55mCopa Airlines
Mon 25/53:48 a.m.EZE - YUL
1 stop21h 52mCopa Airlines
Deal found 11/12C$ 1,076
Mon 20/46:10 a.m.YUL - EZE
2 stops24h 50mUnited Airlines
Tue 26/59:00 p.m.EZE - YUL
2 stops25h 01mUnited Airlines
Deal found 11/12C$ 1,069
Tue 27/17:00 a.m.YUL - EZE
2 stops24h 20mUnited Airlines
Mon 16/210:05 p.m.EZE - YUL
2 stops19h 11mUnited Airlines
Deal found 10/12C$ 1,080
Mon 27/411:25 p.m.YUL - AEP
1 stop29h 15mAvianca
Mon 4/57:00 a.m.AEP - YUL
1 stop16h 05mAvianca
Deal found 11/12C$ 1,340
Tue 31/310:55 p.m.YUL - AEP
2 stops18h 45mMultiple Airlines
Thu 23/46:20 a.m.AEP - YUL
2 stops19h 00mMultiple Airlines
Deal found 10/12C$ 1,363
Sat 14/37:00 a.m.YUL - AEP
2 stops25h 40mLATAM Airlines
Sat 4/45:05 p.m.AEP - YUL
2 stops19h 32mLATAM Airlines
Deal found 10/12C$ 1,414
Mon 2/24:45 p.m.YUL - EZE
2 stops36h 35mUnited Airlines
Sun 22/211:55 p.m.EZE - YUL
2 stops23h 22mUnited Airlines
Deal found 10/12C$ 1,080
Mon 2/210:00 p.m.YUL - AEP
1 stop29h 40mAvianca
Wed 25/27:00 a.m.AEP - YUL
1 stop15h 35mAvianca
Deal found 11/12C$ 1,371
Mon 9/37:00 a.m.YUL - AEP
2 stops27h 20mMultiple Airlines
Wed 8/45:15 a.m.AEP - YUL
1 stop15h 05mMultiple Airlines
Deal found 10/12C$ 1,371
Fri 16/14:45 p.m.YUL - EZE
2 stops36h 35mUnited Airlines
Mon 16/211:55 p.m.EZE - YUL
2 stops23h 22mUnited Airlines
Deal found 11/12C$ 1,080
Mon 2/210:00 p.m.YUL - AEP
1 stop29h 40mAvianca
Mon 2/37:00 a.m.AEP - YUL
1 stop15h 35mAvianca
Deal found 11/12C$ 1,397
Thu 29/17:35 a.m.YUL - AEP
2 stops18h 05mMultiple Airlines
Wed 18/25:15 a.m.AEP - YUL
1 stop15h 05mMultiple Airlines
Deal found 10/12C$ 1,427
Tue 3/27:00 a.m.YUL - EZE
2 stops22h 20mUnited Airlines
Fri 27/210:05 p.m.EZE - YUL
2 stops19h 11mUnited Airlines
Deal found 11/12C$ 1,084
Fri 30/16:45 a.m.YUL - AEP
2 stops24h 45mMultiple Airlines
Thu 26/24:15 a.m.AEP - YUL
1 stop16h 00mMultiple Airlines
Deal found 11/12C$ 1,427
Sun 1/29:15 a.m.YUL - EZE
2 stops22h 05mUnited Airlines
Mon 2/311:55 p.m.EZE - YUL
2 stops23h 22mUnited Airlines
Deal found 11/12C$ 1,084
Mon 20/48:55 a.m.YUL - AEP
3 stops21h 45mMultiple Airlines
Tue 26/55:10 p.m.AEP - YUL
2 stops29h 55mMultiple Airlines
Deal found 11/12C$ 1,452
Mon 26/19:15 a.m.YUL - EZE
2 stops22h 05mUnited Airlines
Sun 15/211:55 p.m.EZE - YUL
2 stops23h 22mUnited Airlines
Deal found 10/12C$ 1,095
Sun 1/29:15 a.m.YUL - EZE
2 stops22h 05mUnited Airlines
Fri 27/210:05 p.m.EZE - YUL
2 stops23h 43mUnited Airlines
Deal found 11/12C$ 1,099
Direct flights from Montreal to Buenos Aires
Explore direct flight options from Montreal to Buenos Aires based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 December 2025.
Tue 12/510:55 p.m.YUL - EZE
Nonstop14h 35mAir Canada
Mon 25/54:35 p.m.EZE - YUL
Nonstop14h 35mAir Canada
Deal found 9/12C$ 2,662
Last-minute flights from Montreal to Buenos Aires
Discover last-minute flight deals from Montreal to Buenos Aires. Data last updated 12 December 2025 and is based on user searches.
Tue 6/12:45 p.m.YUL - EZE
1 stop14h 35mDelta
Mon 19/18:55 p.m.EZE - YUL
1 stop16h 50mDelta
Deal found 9/12C$ 1,106
Tue 13/17:00 a.m.YUL - EZE
1 stop23h 15mAmerican Airlines
Sat 21/211:00 p.m.EZE - YUL
1 stop26h 24mAmerican Airlines
Deal found 11/12C$ 1,102
Wed 14/16:00 a.m.YUL - EZE
2 stops23h 20mUnited Airlines
Mon 16/210:05 p.m.EZE - YUL
2 stops19h 11mUnited Airlines
Deal found 10/12C$ 1,100
Fri 16/17:00 a.m.YUL - EZE
1 stop25h 10mAmerican Airlines
Mon 16/29:25 p.m.EZE - YUL
2 stops27h 19mAmerican Airlines
Deal found 11/12C$ 1,094
Wed 21/112:50 p.m.YUL - EZE
1 stop16h 30mDelta
Mon 23/28:55 p.m.EZE - YUL
1 stop16h 30mDelta
Deal found 10/12C$ 1,105
Mon 26/17:00 a.m.YUL - EZE
1 stop22h 10mAmerican Airlines
Tue 10/29:40 p.m.EZE - YUL
2 stops18h 05mAmerican Airlines
Deal found 10/12C$ 1,092
Tue 27/12:25 p.m.YUL - EZE
2 stops18h 15mAmerican Airlines
Mon 9/39:50 p.m.EZE - YUL
2 stops18h 24mAmerican Airlines
Deal found 10/12C$ 1,098
Wed 28/19:15 a.m.YUL - EZE
2 stops22h 05mUnited Airlines
Mon 2/311:55 p.m.EZE - YUL
2 stops23h 22mUnited Airlines
Deal found 10/12C$ 1,080
Thu 29/16:00 a.m.YUL - EZE
2 stops23h 20mUnited Airlines
Mon 23/210:05 p.m.EZE - YUL
2 stops23h 43mUnited Airlines
Deal found 10/12C$ 1,065
Sat 31/14:45 p.m.YUL - EZE
2 stops38h 35mUnited Airlines
Wed 25/210:05 p.m.EZE - YUL
2 stops19h 11mUnited Airlines
Deal found 11/12C$ 1,084
Sat 31/14:45 p.m.YUL - EZE
2 stops38h 35mUnited Airlines
Sat 28/211:55 p.m.EZE - YUL
2 stops23h 47mUnited Airlines
Deal found 9/12C$ 1,095
Sat 31/14:45 p.m.YUL - EZE
2 stops38h 35mUnited Airlines
Fri 27/210:05 p.m.EZE - YUL
2 stops23h 43mUnited Airlines
Deal found 11/12C$ 1,099
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 12 December 2025.
Fri 8/511:25 p.m.YUL - EZE
2 stops20h 55mMultiple Airlines
Deal found 10/12C$ 443
Fri 8/511:25 p.m.YUL - AEP
2 stops34h 55mMultiple Airlines
Deal found 10/12C$ 444
Wed 21/16:45 a.m.YUL - EZE
1 stop15h 20mArajet
Deal found 11/12C$ 487
Sun 4/110:00 p.m.YUL - EZE
1 stop15h 50mAvianca
Deal found 10/12C$ 520
Mon 19/110:00 p.m.YUL - EZE
1 stop15h 50mAvianca
Deal found 9/12C$ 523
Mon 9/311:00 p.m.YUL - EZE
1 stop15h 50mAvianca
Deal found 11/12C$ 535
Fri 8/511:25 p.m.YUL - EZE
1 stop14h 55mAvianca
Deal found 10/12C$ 536
Sat 21/39:55 p.m.YUL - EZE
1 stop16h 15mAir Canada
Deal found 11/12C$ 543
Wed 8/46:45 a.m.YUL - AEP
2 stops33h 25mMultiple Airlines
Deal found 9/12C$ 548
Wed 7/17:00 a.m.YUL - EZE
1 stop22h 20mDelta
Deal found 10/12C$ 548
Fri 23/112:50 p.m.YUL - AEP
3 stops42h 20mMultiple Airlines
Deal found 11/12C$ 549
Sat 24/19:34 a.m.YUL - EZE
2 stops21h 26mDelta
Deal found 11/12C$ 549
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 12 December 2025.
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 12 December 2025.
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 5/2
6:00 a.m.-9:20 a.m.
2 stops25h 20m
Buenos Aires Ministro Pistarini
Tue 3/3
10:05 p.m.-3:16 p.m.
2 stops19h 11m
C$ 1,069
MontrealBuenos Aires
YUL - EZE
YULEZE
Montreal Pierre Elliott Trudeau Intl
Tue 3/2
7:00 a.m.-7:20 a.m.
2 stops22h 20m
Buenos Aires Ministro Pistarini
Thu 26/2
11:55 p.m.-7:48 p.m.
2 stops21h 53m
C$ 1,069
MontrealBuenos Aires
YUL - EZE
YULEZE
Montreal Pierre Elliott Trudeau Intl
Mon 20/4
6:10 a.m.-8:00 a.m.
2 stops24h 50m
Buenos Aires Ministro Pistarini
Tue 26/5
9:00 p.m.-9:01 p.m.
2 stops25h 01m
C$ 1,069
MontrealBuenos Aires
YUL - EZE
YULEZE
Montreal Pierre Elliott Trudeau Intl
Wed 1/4
8:35 a.m.-2:30 a.m.
1 stop16h 55m
Buenos Aires Ministro Pistarini
Tue 21/4
3:52 a.m.-12:40 a.m.
1 stop21h 48m
C$ 1,072
MontrealBuenos Aires
YUL - EZE
YULEZE
Montreal Pierre Elliott Trudeau Intl
Mon 20/4
8:35 a.m.-2:30 a.m.
1 stop16h 55m
Buenos Aires Ministro Pistarini
Mon 25/5
3:48 a.m.-12:40 a.m.
1 stop21h 52m
C$ 1,076
MontrealBuenos Aires
YUL - EZE
YULEZE
Montreal Pierre Elliott Trudeau Intl
Tue 27/1
7:00 a.m.-9:20 a.m.
2 stops24h 20m
Buenos Aires Ministro Pistarini
Mon 16/2
10:05 p.m.-3:16 p.m.
2 stops19h 11m
C$ 1,080
MontrealBuenos Aires
YUL - EZE
YULEZE
Montreal Pierre Elliott Trudeau Intl
Mon 2/2
4:45 p.m.-7:20 a.m.
2 stops36h 35m
Buenos Aires Ministro Pistarini
Sun 22/2
11:55 p.m.-9:17 p.m.
2 stops23h 22m
C$ 1,080
MontrealBuenos Aires
YUL - EZE
YULEZE
Montreal Pierre Elliott Trudeau Intl
Fri 16/1
4:45 p.m.-7:20 a.m.
2 stops36h 35m
Buenos Aires Ministro Pistarini
Mon 16/2
11:55 p.m.-9:17 p.m.
2 stops23h 22m
C$ 1,080
MontrealBuenos Aires
YUL - EZE
YULEZE
Montreal Pierre Elliott Trudeau Intl
Tue 3/2
7:00 a.m.-7:20 a.m.
2 stops22h 20m
Buenos Aires Ministro Pistarini
Fri 27/2
10:05 p.m.-3:16 p.m.
2 stops19h 11m
C$ 1,084
MontrealBuenos Aires
YUL - EZE
YULEZE
Montreal Pierre Elliott Trudeau Intl
Sun 1/2
9:15 a.m.-9:20 a.m.
2 stops22h 05m
Buenos Aires Ministro Pistarini
Mon 2/3
11:55 p.m.-9:17 p.m.
2 stops23h 22m
C$ 1,084
Flights are sorted by cheapest round-trip flights first.
Deals found on 10/12
Showing 1-10 of 43 results
1
2
3
...
5
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 5 December 2025.
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, February is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 618). Flying from Montreal to Buenos Aires in March is currently the most expensive (average of C$ 1,087). 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?
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 12 December 2025.
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?
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.
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.
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.
Sao Paulo (GRU) – chosen by Cheapflights users on 47% 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$ 1,049.
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 37m.
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 12 December 2025.
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.
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
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
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
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
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
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
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$ 1,072, United Airlines can have you in Buenos Aires from Montreal in 16h 55m. 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, Arajet (C$ 511), Avianca (C$ 517), and Delta (C$ 577) offers the cheapest pricing from Montreal to Buenos Aires. These flights start at 58% lower than the current average price 3 months from now.
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, February is the cheapest month in which you can book a flight from Montreal to Buenos Aires (average of C$ 618). Flying from Montreal to Buenos Aires in March is currently the most expensive (average of C$ 1,087). 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.
Explore flights to Buenos Aires departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Browse through other flights departing from Montreal. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
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 12 December 2025.
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.
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.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyze navigation, to offer and measure personalized advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review and update your choices anytime by clicking the ’Privacy Preferences’ link in the page side navigation.