What is the cheapest airline that flies from Ontario to Buenos Aires?

Arajet, Delta, and United Airlines are the most popular carriers operating from Ontario to Buenos Aires

How many flights depart from Region of Ontario to Buenos Aires on average per week?

As of July 2026, there are 3 flights per week flying from Region of Ontario to Buenos Aires. The most common day of the week flights depart is Wed, with 33% of flights taking off on this day.

Which airlines fly to Buenos Aires?

United Airlines, Air Canada and Avianca are the top three most popular airlines that fly to Buenos Aires from Region of Ontario according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when travelling to Buenos Aires. Keep in mind that there are 8 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Buenos Aires?

Flight times from Region of Ontario to Buenos Aires vary, but if you’re flying out of Toronto and flying into Buenos Aires Ministro Pistarini Airport (one of the most popular routes), then the duration is 16h 49m on average. Another popular route from Region of Ontario to Buenos Aires is flying from Ottawa to Buenos Aires Ministro Pistarini Airport, which will take roughly 24h 55m. Keep in mind that layovers or delays could extend your travel time.

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

Prices for flights from Ontario to Buenos Aires were last updated today.

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

As of July 2026, there are 8 operators available to choose from for flights from Ontario to Buenos Aires.

How old do you have to be to fly from Ontario 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 Ontario to Buenos Aires.

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

The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

C$ 332 Cheap Flights from Ontario to Buenos Aires in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Buenos Aires

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 a.m. - 12:05 a.m.

YUL

EZE

16h 05m

1 stop

9:15 a.m. - 12:20 a.m.

EZE

YUL

16h 05m

1 stop

C$ 701Arajet

Mon, 7 Sep - Tue, 6 Oct

7:00 a.m. - 12:05 a.m.

YUL

EZE

16h 05m

1 stop

9:15 a.m. - 12:20 a.m.

EZE

YUL

16h 05m

1 stop

C$ 765Arajet

Mon, 7 Sep - Tue, 6 Oct

11:01 a.m. - 9:25 p.m.

YUL

EZE

33h 24m

1 stop

9:15 a.m. - 12:20 a.m.

EZE

YUL

16h 05m

1 stop

C$ 852Multiple Airlines

Sun, 6 Sep - Tue, 6 Oct

11:01 a.m. - 9:25 p.m.

YUL

EZE

33h 24m

1 stop

9:45 a.m. - 12:20 a.m.

EZE

YUL

15h 35m

1 stop

C$ 873Multiple Airlines

Sun, 13 Sep - Thu, 24 Sep

8:30 a.m. - 1:53 a.m.

YYZ

EZE

15h 23m

1 stop

3:46 a.m. - 12:09 a.m.

EZE

YYZ

22h 23m

1 stop

C$ 1,042Copa Airlines

Tue, 17 Nov - Sun, 6 Dec

8:30 a.m. - 4:21 a.m.

YYZ

EZE

18h 51m

1 stop

2:21 a.m. - 12:09 a.m.

EZE

YYZ

23h 48m

1 stop

C$ 1,042Copa Airlines

Tue, 20 Oct - Sun, 1 Nov

12:25 p.m. - 6:45 p.m.

YYZ

EZE

28h 20m

2 stops

8:05 p.m. - 11:14 a.m.

EZE

YYZ

16h 09m

1 stop

C$ 1,045LATAM Airlines

Thu, 7 Jan - Wed, 24 Mar

12:25 p.m. - 6:45 p.m.

YYZ

EZE

28h 20m

2 stops

8:05 p.m. - 5:26 p.m.

EZE

YYZ

23h 21m

1 stop

C$ 1,045LATAM Airlines

Tue, 5 Jan - Tue, 19 Jan

7:30 a.m. - 8:00 a.m.

YYZ

EZE

23h 30m

2 stops

9:00 p.m. - 8:44 p.m.

EZE

YYZ

24h 44m

2 stops

C$ 1,069United Airlines

Thu, 20 Aug - Tue, 1 Sep

5:27 p.m. - 8:00 a.m.

YYZ

EZE

37h 33m

2 stops

9:00 p.m. - 5:56 p.m.

EZE

YYZ

21h 56m

2 stops

C$ 1,069United Airlines

Tue, 18 Aug - Wed, 2 Sep

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Aeromexico flights from Region of Ontario to Buenos Aires

Our best Aeromexico deals on Region of Ontario to Buenos Aires flight tickets

Aeromexico

23 Sep

YUL11:01 a.m.Montreal Pierre Elliott Trudeau Intl

33h 24m

1 stop

EZE9:25 p.m.Buenos Aires Ministro Pistarini

27 Sep

EZE11:25 p.m.Buenos Aires Ministro Pistarini

33h 05m

1 stop

YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 972

Aeromexico

9 Sep

YYZ11:01 a.m.Toronto Pearson Intl

33h 24m

1 stop

EZE9:25 p.m.Buenos Aires Ministro Pistarini

22 Sep

EZE11:25 p.m.Buenos Aires Ministro Pistarini

31h 55m

1 stop

YYZ6:20 a.m.Toronto Pearson Intl

C$ 998

Aeromexico

9 Sep

YYZ11:01 a.m.Toronto Pearson Intl

33h 24m

1 stop

EZE9:25 p.m.Buenos Aires Ministro Pistarini

16 Sep

EZE11:25 p.m.Buenos Aires Ministro Pistarini

31h 55m

1 stop

YYZ6:20 a.m.Toronto Pearson Intl

C$ 1,005

American Airlines flights from Region of Ontario to Buenos Aires

Our best American Airlines deals on Region of Ontario to Buenos Aires flight tickets

American Airlines

26 Aug

YYZ6:00 a.m.Toronto Pearson Intl

25h 45m

1 stop

EZE8:45 a.m.Buenos Aires Ministro Pistarini

2 Sep

EZE10:30 p.m.Buenos Aires Ministro Pistarini

19h 40m

1 stop

YYZ5:10 p.m.Toronto Pearson Intl

C$ 1,076

American Airlines

8 Dec

YYZ6:00 a.m.Toronto Pearson Intl

24h 15m

1 stop

EZE8:15 a.m.Buenos Aires Ministro Pistarini

8 Mar

EZE10:50 p.m.Buenos Aires Ministro Pistarini

15h 27m

1 stop

YYZ12:17 p.m.Toronto Pearson Intl

C$ 1,077

American Airlines

27 Aug

YYZ6:00 a.m.Toronto Pearson Intl

24h 15m

1 stop

EZE7:15 a.m.Buenos Aires Ministro Pistarini

3 Sep

EZE8:50 p.m.Buenos Aires Ministro Pistarini

19h 08m

2 stops

YYZ2:58 p.m.Toronto Pearson Intl

C$ 1,081

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

7:00 a.m.-12:05 a.m.

1 stop16h 05m

Buenos Aires Ministro Pistarini

Tue 6/10

9:15 a.m.-12:20 a.m.

1 stop16h 05m

C$ 701

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

7:00 a.m.-12:05 a.m.

1 stop16h 05m

Buenos Aires Ministro Pistarini

Tue 6/10

9:15 a.m.-12:20 a.m.

1 stop16h 05m

C$ 765

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

11:01 a.m.-9:25 p.m.

1 stop33h 24m

Buenos Aires Ministro Pistarini

Tue 6/10

9:15 a.m.-12:20 a.m.

1 stop16h 05m

C$ 852

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Sun 13/9

11:01 a.m.-9:25 p.m.

1 stop33h 24m

Buenos Aires Ministro Pistarini

Thu 24/9

9:45 a.m.-12:20 a.m.

1 stop15h 35m

C$ 873

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Tue 17/11

8:30 a.m.-1:53 a.m.

1 stop15h 23m

Buenos Aires Ministro Pistarini

Sun 6/12

3:46 a.m.-12:09 a.m.

1 stop22h 23m

C$ 1,042

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Tue 20/10

8:30 a.m.-4:21 a.m.

1 stop18h 51m

Buenos Aires Ministro Pistarini

Sun 1/11

2:21 a.m.-12:09 a.m.

1 stop23h 48m

C$ 1,042

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Thu 7/1

12:25 p.m.-6:45 p.m.

2 stops28h 20m

Buenos Aires Ministro Pistarini

Wed 24/3

8:05 p.m.-11:14 a.m.

1 stop16h 09m

C$ 1,045

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Tue 5/1

12:25 p.m.-6:45 p.m.

2 stops28h 20m

Buenos Aires Ministro Pistarini

Tue 19/1

8:05 p.m.-5:26 p.m.

1 stop23h 21m

C$ 1,045

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Thu 20/8

7:30 a.m.-8:00 a.m.

2 stops23h 30m

Buenos Aires Ministro Pistarini

Tue 1/9

9:00 p.m.-8:44 p.m.

2 stops24h 44m

C$ 1,069

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Tue 18/8

5:27 p.m.-8:00 a.m.

2 stops37h 33m

Buenos Aires Ministro Pistarini

Wed 2/9

9:00 p.m.-5:56 p.m.

2 stops21h 56m

C$ 1,069

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario 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

Prices

Airlines

Other information

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Region of Ontario is in September. Flight prices, which tend to average around C$ 1,142, 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 October is your next best option. Flight prices from Region of Ontario to Buenos Aires during October average around C$ 1,148.

What is the cheapest day to depart on your flight to Buenos Aires?

The cheapest day to depart on your flight to Buenos Aires is on a Wednesday when prices can be found for as low as C$ 1,433. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Buenos Aires for around C$ 1,992.

What is the cheapest Ontario to Buenos Aires flight route?

Fly from Toronto Pearson Intl to Buenos Aires Ministro Pistarini for the best Ontario - Buenos Aires flight prices

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

You are more likely to see cheaper flights to Buenos Aires from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around C$ 1,259 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Region of Ontario for as low as C$ 934 on momondo.

What cabin class options are available on Region of Ontario to Buenos Aires flights?

There is only 1 cabin class available to choose from on Region of Ontario to Buenos Aires flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to Buenos Aires flights?

You could potentially save up to 7% on your flight if you consider stops on a Region of Ontario to Buenos Aires flight.

Cheap Region of Ontario to Buenos Aires flight deals and tips

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

Best price found	C$ 1,437
Fastest flight time	13h 54m
Direct flights	Mon, Wed, Thu, Fri, Sat and Sun
Airports in Buenos Aires	2 airports

The best flight deal from Region of Ontario to Buenos Aires found on momondo in the last 72 hours is C$ 1,437

The fastest flight from Region of Ontario to Buenos Aires takes 13h 54m

Direct flights go from Region of Ontario to Buenos Aires on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.

There are 2 airports in Buenos Aires. From Region of Ontario there are direct flights to Buenos Aires Ministro Pistarini (EZE).

Search flight deals

Frequently asked questions about flying from Ontario to Buenos Aires

When did momondo last update prices for flights from Ontario to Buenos Aires?
Prices for flights from Ontario to Buenos Aires were last updated today.
How many operators does momondo search for flights from Ontario to Buenos Aires?
As of July 2026, there are 8 operators available to choose from for flights from Ontario to Buenos Aires.
How old do you have to be to fly from Ontario 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 Ontario to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Region of Ontario to Buenos Aires?
momondo data reveals that the most frequently booked plane model on the route from Region of Ontario to Buenos Aires is Boeing 787-9 Dreamliner, representing 88.89% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 5.56% and Airbus A320-100/200 at 5.56%.

Best airlines flying from Region of Ontario to Buenos Aires

Compare and see reviews for airlines that fly from Region of Ontario to Buenos Aires with momondo

Airline	Rating	Free Cancellation	Price
Copa Airlines	PriceFrom C$ 739	Free Cancellation	Rating 7.6 1,559 reviews	Search Copa Airlines flights
Arajet	PriceFrom C$ 768	Free Cancellation	Rating 6.3 51 reviews	Search Arajet flights
Delta	PriceFrom C$ 807	Free Cancellation	Rating 7.8 8,486 reviews	Search Delta flights
LATAM Airlines	PriceFrom C$ 835	Free Cancellation	Rating 7.4 1,968 reviews	Search LATAM Airlines flights
Avianca	PriceFrom C$ 836	Free Cancellation	Rating 6.5 2,522 reviews	Search Avianca flights
American Airlines	PriceFrom C$ 882	Free Cancellation	Rating 7.1 11,839 reviews	Search American Airlines flights
United Airlines	PriceFrom C$ 1,072	Free Cancellation	Rating 7.4 10,052 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 1,121	Free Cancellation	Rating 7.1 11,406 reviews	Search Air Canada flights

Why use momondo?

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

Finding the right flight to Buenos Aires from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Buenos Aires from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Ontario to Buenos Aires flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Ontario to Buenos Aires now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Buenos Aires and let you know when they change.

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 29/8

Sat 5/9

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Argentina

Nearby airports

Airlines

Cabin classes

Other Argentina destinations

Other flights from Ontario

Complete your trip

Feeling lucky

Fly into one of these airports located in Buenos Aires

Buenos Aires Jorge Newbery Airport

Buenos Aires Ministro Pistarini Airport

Cheap flights from Ontario to Buenos Aires from C$ 332

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Buenos Aires departing on 7/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Ontario to Buenos Aires

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Aeromexico flights from Region of Ontario to Buenos Aires

Our best Aeromexico deals on Region of Ontario to Buenos Aires flight tickets

American Airlines flights from Region of Ontario to Buenos Aires

Our best American Airlines deals on Region of Ontario to Buenos Aires flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Buenos Aires that are best for you.

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Region of Ontario to Buenos Aires

What is the cheapest month to fly to Buenos Aires?

What is the cheapest day to depart on your flight to Buenos Aires?

What is the cheapest Ontario to Buenos Aires flight route?

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

What cabin class options are available on Region of Ontario to Buenos Aires flights?

Can stopping save me money on Region of Ontario to Buenos Aires flights?

What is the cheapest airline that flies from Ontario to Buenos Aires?

Which airlines fly to Buenos Aires?

How many flights depart from Region of Ontario to Buenos Aires on average per week?

How long does it take to fly to Buenos Aires?

Cheap Region of Ontario to Buenos Aires flight deals and tips

Best price found

Fastest flight time

Direct flights

Airports in Buenos Aires

Frequently asked questions about flying from Ontario to Buenos Aires

Best airlines flying from Region of Ontario to Buenos Aires

Compare and see reviews for airlines that fly from Region of Ontario to Buenos Aires with momondo

Why use momondo?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favourite airline to Buenos Aires

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Buenos Aires

List of cabin classes available on flights landing in Buenos Aires. Availability may vary depending on flight origin and airline.

Popular Cities in Argentina

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Ontario

According to popular flight searches on momondo this year

Complete your trip to Buenos Aires

Explore popular destinations other users love

According to popular flight searches on momondo this year