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Cheap flights from Montreal to Buenos Aires from C$ 422

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to Buenos Aires departing on 16/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Montreal to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
11:00 p.m. - 5:40 a.m.
YUL
-
AEP
29h 40m
1 stop
Avianca Logo
7:00 a.m. - 9:35 p.m.
AEP
-
YUL
15h 35m
1 stop
C$ 1,086Avianca
Sun, 3 May - Wed, 13 May
Avianca Logo
6:00 a.m. - 8:20 a.m.
YUL
-
EZE
25h 20m
2 stops
Avianca Logo
9:05 p.m. - 9:17 p.m.
EZE
-
YUL
25h 12m
2 stops
C$ 1,086Avianca
Mon, 16 Mar - Mon, 23 Mar
Multiple Airlines Logo
11:00 p.m. - 9:20 p.m.
YUL
-
AEP
21h 20m
2 stops
Multiple Airlines Logo
7:00 a.m. - 9:35 p.m.
AEP
-
YUL
39h 35m
3 stops
C$ 1,088Multiple Airlines
Tue, 5 May - Wed, 20 May
Avianca Logo
11:00 p.m. - 5:40 a.m.
YUL
-
AEP
29h 40m
1 stop
Avianca Logo
7:00 a.m. - 9:35 p.m.
AEP
-
YUL
15h 35m
1 stop
C$ 1,089Avianca
Wed, 1 Apr - Thu, 7 May
Multiple Airlines Logo
11:00 p.m. - 12:30 a.m.
YUL
-
EZE
24h 30m
2 stops
Multiple Airlines Logo
7:00 p.m. - 9:35 p.m.
EZE
-
YUL
27h 35m
2 stops
C$ 1,091Multiple Airlines
Mon, 16 Mar - Sun, 29 Mar
Avianca Logo
11:00 p.m. - 5:40 a.m.
YUL
-
AEP
29h 40m
1 stop
Avianca Logo
7:00 a.m. - 9:35 p.m.
AEP
-
YUL
15h 35m
1 stop
C$ 1,091Avianca
Wed, 1 Apr - Thu, 7 May
Copa Airlines Logo
7:35 a.m. - 12:10 a.m.
YUL
-
EZE
14h 35m
1 stop
Copa Airlines Logo
9:11 a.m. - 12:40 a.m.
EZE
-
YUL
16h 29m
1 stop
C$ 1,092Copa Airlines
Wed, 18 Feb - Thu, 30 Apr
Arajet Logo
6:45 a.m. - 12:05 a.m.
YUL
-
EZE
16h 20m
1 stop
Arajet Logo
8:50 a.m. - 12:20 a.m.
EZE
-
YUL
16h 30m
1 stop
C$ 1,093Arajet
Mon, 16 Mar - Tue, 31 Mar
Multiple Airlines Logo
11:00 p.m. - 12:30 a.m.
YUL
-
EZE
24h 30m
2 stops
Multiple Airlines Logo
2:45 a.m. - 12:20 a.m.
EZE
-
YUL
22h 35m
1 stop
C$ 1,095Multiple Airlines
Mon, 16 Mar - Mon, 30 Mar
United Airlines Logo
6:00 a.m. - 8:20 a.m.
YUL
-
EZE
25h 20m
2 stops
United Airlines Logo
9:00 p.m. - 10:40 a.m.
EZE
-
YUL
38h 40m
2 stops
C$ 1,100United Airlines
Mon, 16 Mar - Mon, 13 Apr

Arajet flights from Montreal to Buenos Aires

Our best Arajet deals on Montreal to Buenos Aires flight tickets
Arajet
16 Mar
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
16h 20m
1 stop
EZE12:05 a.m.Buenos Aires Ministro Pistarini
31 Mar
EZE8:50 a.m.Buenos Aires Ministro Pistarini
16h 30m
1 stop
YUL12:20 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,093
Arajet
16 Feb
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
15h 20m
1 stop
EZE12:05 a.m.Buenos Aires Ministro Pistarini
28 Apr
EZE8:50 a.m.Buenos Aires Ministro Pistarini
16h 30m
1 stop
YUL12:20 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,175

United Airlines flights from Montreal to Buenos Aires

Our best United Airlines deals on Montreal to Buenos Aires flight tickets
United Airlines
16 Mar
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
25h 20m
2 stops
EZE8:20 a.m.Buenos Aires Ministro Pistarini
13 Apr
EZE9:00 p.m.Buenos Aires Ministro Pistarini
38h 40m
2 stops
YUL10:40 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,100
United Airlines
24 Mar
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
24h 20m
2 stops
EZE8:20 a.m.Buenos Aires Ministro Pistarini
7 Apr
EZE9:00 p.m.Buenos Aires Ministro Pistarini
25h 26m
2 stops
YUL9:26 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,127
United Airlines
14 May
YUL6:10 a.m.Montreal Pierre Elliott Trudeau Intl
48h 50m
2 stops
EZE8:00 a.m.Buenos Aires Ministro Pistarini
21 May
EZE9:00 p.m.Buenos Aires Ministro Pistarini
49h 34m
2 stops
YUL9:34 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,150

momondo 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, momondo users made 96,600 searches. Data last updated 1 February 2026.
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 - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

11:00 p.m.-5:40 a.m.

1 stop29h 40m

Buenos Aires Jorge Newbery

Wed 13/5

7:00 a.m.-9:35 p.m.

1 stop15h 35m

C$ 1,086

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 16/3

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

2 stops25h 20m

Buenos Aires Ministro Pistarini

Mon 23/3

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

2 stops25h 12m

C$ 1,086

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

11:00 p.m.-9:20 p.m.

2 stops21h 20m

Buenos Aires Jorge Newbery

Wed 20/5

7:00 a.m.-9:35 p.m.

3 stops39h 35m

C$ 1,088

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

11:00 p.m.-5:40 a.m.

1 stop29h 40m

Buenos Aires Jorge Newbery

Thu 7/5

7:00 a.m.-9:35 p.m.

1 stop15h 35m

C$ 1,089

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 16/3

11:00 p.m.-12:30 a.m.

2 stops24h 30m

Buenos Aires Ministro Pistarini

Sun 29/3

7:00 p.m.-9:35 p.m.

2 stops27h 35m

C$ 1,091

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

11:00 p.m.-5:40 a.m.

1 stop29h 40m

Buenos Aires Jorge Newbery

Thu 7/5

7:00 a.m.-9:35 p.m.

1 stop15h 35m

C$ 1,091

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

7:35 a.m.-12:10 a.m.

1 stop14h 35m

Buenos Aires Ministro Pistarini

Thu 30/4

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

1 stop16h 29m

C$ 1,092

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 16/3

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

1 stop16h 20m

Buenos Aires Ministro Pistarini

Tue 31/3

8:50 a.m.-12:20 a.m.

1 stop16h 30m

C$ 1,093

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 16/3

11:00 p.m.-12:30 a.m.

2 stops24h 30m

Buenos Aires Ministro Pistarini

Mon 30/3

2:45 a.m.-12:20 a.m.

1 stop22h 35m

C$ 1,095

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 16/3

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

2 stops25h 20m

Buenos Aires Ministro Pistarini

Mon 13/4

9:00 p.m.-10:40 a.m.

2 stops38h 40m

C$ 1,100

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Montreal to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Montreal and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Montreal is in September. Flight prices, which tend to average around C$ 1,081, are often lower during this time because this is during the off-season. If you’re not able to fly to Buenos Aires in September, then May is your next best option. Flight prices from Montreal to Buenos Aires during May average around C$ 1,093.

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

You are more likely to see cheaper flights to Buenos Aires from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around C$ 1,206 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Montreal for as low as C$ 918 on momondo.

Can stopping save me money on Montreal to Buenos Aires flights?

You could potentially save up to 2% on your flight if you consider stops on a Montreal to Buenos Aires flight.

How have Montreal to Buenos Aires flight prices changed over time?

As of February 2026, prices for Montreal to Buenos Aires flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Montreal to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montreal to Buenos Aires (YMQ to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to Buenos Aires

Fastest flight time

14h 45m

Direct flights

None
The fastest flight from Montreal to Buenos Aires takes 14h 45m
There are no direct flights from Montreal to Buenos Aires. There are no popular flight routes from Montreal to Buenos Aires.
Search flight deals

  • How far is Montreal to Buenos Aires by plane?

    A flight from Montreal to Buenos Aires will travel around 9031.8 km. In terms of flight time, this usually takes a little over 14h 45m.

  • When did momondo last update prices for flights from Montreal to Buenos Aires?

    Prices for flights from Montreal to Buenos Aires are refreshed on a daily basis.

  • How many operators does momondo search for flights from Montreal to Buenos Aires?

  • How old do you have to be to fly from Montreal to Buenos Aires?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Montreal to Buenos Aires.

  • What documentation or ID do you need to fly to Buenos Aires?

    The travel and health documents required for your trip to Buenos Aires can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Montreal to Buenos Aires?

Best airlines flying from Montreal to Buenos Aires

Compare and see reviews for airlines that fly from Montreal to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
ArajetPriceFrom C$ 504Free CancellationRating
6.6
43 reviews
Search Arajet flights
AviancaPriceFrom C$ 511Free CancellationRating
6.6
2,493 reviews
Search Avianca flights
DeltaPriceFrom C$ 570Free CancellationRating
7.9
8,130 reviews
Search Delta flights
Copa AirlinesPriceFrom C$ 799Free CancellationRating
7.6
1,561 reviews
Search Copa Airlines flights
Air CanadaPriceFrom C$ 1,044Free CancellationRating
7.1
10,668 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 1,069Free CancellationRating
7.4
9,219 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Buenos Aires?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to Buenos Aires for you.

Can I find flights from Montreal to Buenos Aires with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Montreal to Buenos Aires flights to just show those with flexible booking policies.

How can momondo help me find flights from Montreal to Buenos Aires?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Buenos Aires from Montreal.

I’m not ready to book a flight from Montreal to Buenos Aires right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Montreal to Buenos Aires flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 27.4 km from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport