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Cheap flights from Montreal to Buenos Aires from C$ 420

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 15/4. 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.
United Airlines Logo
2:13 p.m. - 8:20 a.m.
YUL
-
EZE
41h 07m
2 stops
United Airlines Logo
9:05 p.m. - 3:16 p.m.
EZE
-
YUL
19h 11m
2 stops
C$ 1,085United Airlines
Sun, 8 Mar - Tue, 24 Mar
United Airlines Logo
9:15 a.m. - 6:20 a.m.
YUL
-
EZE
20h 05m
2 stops
United Airlines Logo
9:05 p.m. - 3:16 p.m.
EZE
-
YUL
19h 11m
2 stops
C$ 1,088United Airlines
Sun, 8 Mar - Tue, 24 Mar
United Airlines Logo
2:13 p.m. - 7:20 a.m.
YUL
-
EZE
39h 07m
2 stops
United Airlines Logo
9:05 p.m. - 9:17 p.m.
EZE
-
YUL
25h 12m
2 stops
C$ 1,091United Airlines
Wed, 18 Feb - Mon, 16 Mar
Copa Airlines Logo
8:35 a.m. - 12:50 a.m.
YUL
-
EZE
15h 15m
1 stop
Copa Airlines Logo
3:48 a.m. - 12:40 a.m.
EZE
-
YUL
21h 52m
1 stop
C$ 1,096Copa Airlines
Wed, 1 Apr - Wed, 6 May
American Airlines Logo
12:59 p.m. - 9:59 a.m.
YUL
-
EZE
20h 00m
2 stops
American Airlines Logo
11:30 p.m. - 11:29 p.m.
EZE
-
YUL
24h 59m
1 stop
C$ 1,098American Airlines
Sun, 8 Mar - Tue, 24 Mar
American Airlines Logo
7:00 a.m. - 7:10 a.m.
YUL
-
EZE
23h 10m
1 stop
American Airlines Logo
11:30 p.m. - 10:44 p.m.
EZE
-
YUL
24h 14m
2 stops
C$ 1,101American Airlines
Sun, 8 Mar - Tue, 24 Mar
LATAM Airlines Logo
12:42 p.m. - 6:40 p.m.
YUL
-
AEP
28h 58m
2 stops
LATAM Airlines Logo
10:55 p.m. - 11:45 p.m.
AEP
-
YUL
25h 50m
2 stops
C$ 1,114LATAM Airlines
Mon, 9 Mar - Wed, 18 Mar
LATAM Airlines Logo
12:42 p.m. - 6:40 p.m.
YUL
-
AEP
28h 58m
2 stops
LATAM Airlines Logo
10:55 p.m. - 11:45 p.m.
AEP
-
YUL
25h 50m
2 stops
C$ 1,125LATAM Airlines
Mon, 9 Mar - Fri, 13 Mar
Multiple Airlines Logo
6:45 a.m. - 11:20 a.m.
YUL
-
AEP
26h 35m
2 stops
Multiple Airlines Logo
12:10 a.m. - 7:15 p.m.
AEP
-
YUL
20h 05m
1 stop
C$ 1,178Multiple Airlines
Fri, 6 Mar - Thu, 12 Mar
Multiple Airlines Logo
11:00 p.m. - 8:40 p.m.
YUL
-
AEP
20h 40m
2 stops
Multiple Airlines Logo
6:40 a.m. - 12:15 a.m.
AEP
-
YUL
18h 35m
2 stops
C$ 1,211Multiple Airlines
Mon, 16 Mar - Thu, 26 Mar

United Airlines flights from Montreal to Buenos Aires

Our best United Airlines deals on Montreal to Buenos Aires flight tickets
United Airlines
8 Mar
YUL2:13 p.m.Montreal Pierre Elliott Trudeau Intl
41h 07m
2 stops
EZE8:20 a.m.Buenos Aires Ministro Pistarini
24 Mar
EZE9:05 p.m.Buenos Aires Ministro Pistarini
19h 11m
2 stops
YUL3:16 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,088
United Airlines
18 Feb
YUL2:13 p.m.Montreal Pierre Elliott Trudeau Intl
39h 07m
2 stops
EZE7:20 a.m.Buenos Aires Ministro Pistarini
16 Mar
EZE9:05 p.m.Buenos Aires Ministro Pistarini
25h 12m
2 stops
YUL9:17 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,091
United Airlines
8 Mar
YUL9:15 a.m.Montreal Pierre Elliott Trudeau Intl
20h 05m
2 stops
EZE6:20 a.m.Buenos Aires Ministro Pistarini
24 Mar
EZE9:05 p.m.Buenos Aires Ministro Pistarini
19h 11m
2 stops
YUL3:16 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,092

American Airlines flights from Montreal to Buenos Aires

Our best American Airlines deals on Montreal to Buenos Aires flight tickets
American Airlines
8 Mar
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
24h 00m
1 stop
EZE8:00 a.m.Buenos Aires Ministro Pistarini
24 Mar
EZE11:30 p.m.Buenos Aires Ministro Pistarini
24h 14m
2 stops
YUL10:44 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,101
American Airlines
9 Mar
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
24h 00m
1 stop
EZE8:00 a.m.Buenos Aires Ministro Pistarini
28 Mar
EZE8:15 p.m.Buenos Aires Ministro Pistarini
18h 30m
2 stops
YUL1:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,107
American Airlines
4 Feb
YUL2:25 p.m.Montreal Pierre Elliott Trudeau Intl
18h 15m
2 stops
EZE10:40 a.m.Buenos Aires Ministro Pistarini
18 Mar
EZE8:15 p.m.Buenos Aires Ministro Pistarini
18h 30m
2 stops
YUL1:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,130

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 21 January 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 - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

2:13 p.m.-8:20 a.m.

2 stops41h 07m

Buenos Aires Ministro Pistarini

Tue 24/3

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

2 stops19h 11m

C$ 1,085

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$ 1,088

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

2:13 p.m.-7:20 a.m.

2 stops39h 07m

Buenos Aires Ministro Pistarini

Mon 16/3

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

2 stops25h 12m

C$ 1,091

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

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

1 stop15h 15m

Buenos Aires Ministro Pistarini

Wed 6/5

3:48 a.m.-12:40 a.m.

1 stop21h 52m

C$ 1,096

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

12:59 p.m.-9:59 a.m.

2 stops20h 00m

Buenos Aires Ministro Pistarini

Tue 24/3

11:30 p.m.-11:29 p.m.

1 stop24h 59m

C$ 1,098

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

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

1 stop23h 10m

Buenos Aires Ministro Pistarini

Tue 24/3

11:30 p.m.-10:44 p.m.

2 stops24h 14m

C$ 1,101

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

12:42 p.m.-6:40 p.m.

2 stops28h 58m

Buenos Aires Jorge Newbery

Wed 18/3

10:55 p.m.-11:45 p.m.

2 stops25h 50m

C$ 1,114

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

12:42 p.m.-6:40 p.m.

2 stops28h 58m

Buenos Aires Jorge Newbery

Fri 13/3

10:55 p.m.-11:45 p.m.

2 stops25h 50m

C$ 1,125

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Fri 6/3

6:45 a.m.-11:20 a.m.

2 stops26h 35m

Buenos Aires Jorge Newbery

Thu 12/3

12:10 a.m.-7:15 p.m.

1 stop20h 05m

C$ 1,178

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 16/3

11:00 p.m.-8:40 p.m.

2 stops20h 40m

Buenos Aires Jorge Newbery

Thu 26/3

6:40 a.m.-12:15 a.m.

2 stops18h 35m

C$ 1,211

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

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$ 1,098, 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$ 1,112.

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$ 1,228 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$ 932 on momondo.

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

As of January 2026, prices for Montreal to Buenos Aires flights are approximately 19% 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 00m

Direct flights

None
The fastest flight from Montreal to Buenos Aires takes 14h 00m
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 00m.

  • 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
AviancaPriceFrom C$ 519Free CancellationRating
6.6
2,496 reviews
Search Avianca flights
DeltaPriceFrom C$ 579Free CancellationRating
7.9
8,088 reviews
Search Delta flights
Copa AirlinesPriceFrom C$ 812Free CancellationRating
7.6
1,557 reviews
Search Copa Airlines flights
ArajetPriceFrom C$ 923Free CancellationRating
6.5
42 reviews
Search Arajet flights
Air CanadaPriceFrom C$ 1,060Free CancellationRating
7.1
10,646 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 1,086Free CancellationRating
7.4
9,191 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