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Cheap flights from Ontario to Buenos Aires from C$ 440

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUE
17 Jun — 24 Jun1
1 adult

Cheap flight deals from Ontario to Buenos Aires

Keep the following information in mind while searching for Ontario to Buenos Aires flight deals. Data was last updated 12 June 2025.

Round-trip from

C$ 971

One-way from

C$ 440

Popular in

December

Cheapest in

June

Average price

C$ 1,091
American Airlines
  • American Airlines
  • 10/9-26/9
  • 4 total stops
  • 48h 21m total
  • Ontario to Buenos Aires
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8/10
  • 8/10
  • 2 total stops
  • 27h 31m total
  • Ontario to Buenos Aires
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 120 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 33 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Ontario to Buenos Aires

Cheapest flights from Ontario to Buenos Aires
Explore the most affordable flight options available from Ontario to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Wed 10/910:41 a.m.YUL - EZE
2 stops21h 19mAmerican Airlines
Fri 26/98:30 p.m.EZE - YUL
2 stops27h 02mAmerican Airlines
Deal found 11/6C$ 971
Thu 12/63:45 p.m.YYZ - EZE
2 stops14h 40mAmerican Airlines
Wed 25/610:30 p.m.EZE - YYZ
2 stops17h 00mAmerican Airlines
Deal found 11/6C$ 983
Fri 25/76:55 p.m.YYZ - EZE
1 stop21h 20mArajet
Fri 1/84:25 a.m.EZE - YYZ
1 stop14h 30mArajet
Deal found 10/6C$ 990
Thu 16/109:00 a.m.YYZ - EZE
1 stop18h 14mCopa Airlines
Thu 23/1010:05 a.m.EZE - YYZ
1 stop16h 08mCopa Airlines
Deal found 10/6C$ 1,023
Sun 31/83:25 p.m.YTZ - EZE
2 stops22h 05mAir Canada
Wed 3/94:35 p.m.EZE - YTZ
2 stops23h 10mAir Canada
Deal found 10/6C$ 1,025
Wed 8/1011:25 p.m.YUL - EZE
1 stop14h 55mAvianca
Thu 23/101:40 a.m.EZE - YUL
1 stop21h 25mAvianca
Deal found 12/6C$ 1,034
Sun 10/88:20 p.m.YYZ - EZE
2 stops17h 10mAir Canada
Thu 14/84:35 p.m.EZE - YYZ
2 stops20h 05mAir Canada
Deal found 11/6C$ 1,034
Wed 9/710:40 p.m.YUL - EZE
1 stop14h 50mAir Canada
Wed 30/74:35 p.m.EZE - YUL
1 stop14h 40mAir Canada
Deal found 11/6C$ 1,038
Fri 29/88:55 p.m.YOW - EZE
2 stops16h 35mAir Canada
Sat 6/94:35 p.m.EZE - YOW
2 stops17h 25mAir Canada
Deal found 9/6C$ 1,050
Sat 13/96:20 p.m.YYZ - AEP
2 stops32h 45mMultiple Airlines
Sat 20/99:05 p.m.AEP - YYZ
2 stops29h 40mMultiple Airlines
Deal found 11/6C$ 1,054
Fri 21/1111:30 p.m.YYZ - EZE
1 stop19h 30mMultiple Airlines
Sat 7/34:00 p.m.EZE - YYZ
1 stop14h 50mMultiple Airlines
Deal found 11/6C$ 1,055
Mon 3/1110:00 a.m.YYZ - EZE
2 stops21h 20mUnited Airlines
Mon 17/1111:55 p.m.EZE - YYZ
1 stop16h 25mUnited Airlines
Deal found 10/6C$ 1,061

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario 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 June 2025.
Use the filters below to find and compare flights from Ontario to Buenos Aires that are best for you.

Fly from

Ontario

Fly to

Buenos Aires

Route

Depart

Return

Price

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 10/9

10:41 a.m.-9:00 a.m.

2 stops21h 19m

Buenos Aires Ministro Pistarini

Fri 26/9

8:30 p.m.-10:32 p.m.

2 stops27h 02m

C$ 971

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Fri 25/7

6:55 p.m.-5:15 p.m.

1 stop21h 20m

Buenos Aires Ministro Pistarini

Fri 1/8

4:25 a.m.-5:55 p.m.

1 stop14h 30m

C$ 990

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Thu 16/10

9:00 a.m.-4:14 a.m.

1 stop18h 14m

Buenos Aires Ministro Pistarini

Thu 23/10

10:05 a.m.-1:13 a.m.

1 stop16h 08m

C$ 1,023

TorontoBuenos Aires

YTZ - EZE

YTZEZE

Toronto Island

Sun 31/8

3:25 p.m.-2:30 p.m.

2 stops22h 05m

Buenos Aires Ministro Pistarini

Wed 3/9

4:35 p.m.-2:45 p.m.

2 stops23h 10m

C$ 1,025

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 8/10

11:25 p.m.-3:20 p.m.

1 stop14h 55m

Buenos Aires Ministro Pistarini

Thu 23/10

1:40 a.m.-10:05 p.m.

1 stop21h 25m

C$ 1,034

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Sun 10/8

8:20 p.m.-2:30 p.m.

2 stops17h 10m

Buenos Aires Ministro Pistarini

Thu 14/8

4:35 p.m.-11:40 a.m.

2 stops20h 05m

C$ 1,034

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 9/7

10:40 p.m.-2:30 p.m.

1 stop14h 50m

Buenos Aires Ministro Pistarini

Wed 30/7

4:35 p.m.-6:15 a.m.

1 stop14h 40m

C$ 1,038

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Sat 26/7

1:55 a.m.-12:10 a.m.

2 stops21h 15m

Buenos Aires Ministro Pistarini

Sun 3/8

5:55 a.m.-6:40 a.m.

3 stops25h 45m

C$ 1,045

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Fri 29/8

8:55 p.m.-2:30 p.m.

2 stops16h 35m

Buenos Aires Ministro Pistarini

Sat 6/9

4:35 p.m.-9:00 a.m.

2 stops17h 25m

C$ 1,050

TorontoBuenos Aires

YYZ - AEP

YYZAEP

Toronto Pearson Intl

Sat 13/9

6:20 p.m.-4:05 a.m.

2 stops32h 45m

Buenos Aires Jorge Newbery

Sat 20/9

9:05 p.m.-1:45 a.m.

2 stops29h 40m

C$ 1,054

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Ontario 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 Ontario to Buenos Aires

What is the cheapest month to book a flight from Region of Ontario to Buenos Aires?

Currently, November is the cheapest month in which you can book a flight from Region of Ontario to Buenos Aires (average of C$ 816). Flying from Region of Ontario to Buenos Aires in December is currently the most expensive (average of C$ 1,063). 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 ON to BUE?

Find hourly flight availability from Ontario 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 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Buenos Aires as you normally would.

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buenos Aires ranges from 50.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. June is typically the driest time to visit Buenos Aires when rainfall is around 50.0 mm.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 11.0 C).

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 June 2025.
To help decide which airline to fly from Ontario to Buenos Aires, see what other customers have to say about Delta, LATAM Airlines and Copa Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
LATAM Airlines
7.5
Good
1,785 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
Copa Airlines
7.5
Good
1,451 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
Aeromexico
7.5
Good
1,706 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Rona,Feb 2024

MSP - DEN

It was a good experience other than a short delay.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Region of Ontario to Buenos Aires one-way?

    For one-way options, check prices for Arajet. According to our data, you can fly for as low as C$ 448. Users have also found prices from C$ 477 and C$ 479 on Air Canada and American Airlines, respectively.

  • What are the most popular routes from Region of Ontario to Buenos Aires?

    When deciding which route to take from Region of Ontario to Buenos Aires consider Montreal Pierre Elliott Trudeau Intl - Buenos Aires Ministro Pistarini, Montreal Pierre Elliott Trudeau Intl - Buenos Aires Jorge Newbery or Toronto Pearson Intl - Buenos Aires Ministro Pistarini as they are the most popular.

  • Can I find deals for flights from Ontario to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Ontario to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Buenos Aires.

  • Can I find deals for business class flights from Ontario to Buenos Aires?

    Yes. Cheapflights offers flight deals from Ontario 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 Region of Ontario to Buenos Aires?

    Currently, November is the cheapest month in which you can book a flight from Region of Ontario to Buenos Aires (average of C$ 816). Flying from Region of Ontario to Buenos Aires in December is currently the most expensive (average of C$ 1,063). 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

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Alternative routes for Ontario to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Ministro Pistarini flights
Pierre Elliott Trudeau Intl to Jorge Newbery flights
Pearson Intl to Ministro Pistarini flights
Pearson Intl to Jorge Newbery flights
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Pierre Elliott Trudeau Intl to Mendoza flights
Ottawa to Ministro Pistarini flights
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Pearson Intl to Ushuaia flights
Pearson Intl to Cordoba flights
Victoria to Ministro Pistarini flights
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Pearson Intl to Mendoza flights
Winnipeg to Ministro Pistarini flights
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Ottawa to Jorge Newbery flights
Pearson Intl to San Carlos de Bariloche flights
Pearson Intl to El Calafate flights
Halifax to Ministro Pistarini flights
Pierre Elliott Trudeau Intl to Rosario flights
Pierre Elliott Trudeau Intl to San Carlos de Bariloche flights
Pierre Elliott Trudeau Intl to El Calafate flights
Pearson Intl to Puerto Iguazú flights
Edmonton to Ministro Pistarini flights
Vancouver Intl to San Carlos de Bariloche flights
Calgary to El Calafate flights
Pierre Elliott Trudeau Intl to Salta flights
Pierre Elliott Trudeau Intl to Ushuaia flights
Vancouver Intl to Mendoza flights

Top 8 airlines flying from Ontario to Buenos Aires

Discover the top 8 airlines that operate flights from Ontario 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 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapestC$ 553AverageC$ 1,163FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
ArajetCheapestC$ 617AverageC$ 866FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
LATAM AirlinesCheapestC$ 759AverageC$ 1,146FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
DeltaCheapestC$ 790AverageC$ 1,119FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 913AverageC$ 1,311FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 978AverageC$ 1,346FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
AviancaCheapestC$ 1,006AverageC$ 1,234FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapestC$ 1,044AverageC$ 1,429FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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How does Cheapflights help users find flights from Ontario to Buenos Aires?

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Why should you use Cheapflights to find cheap flight tickets from Ontario to Buenos Aires?

Cheapflights helps you find that perfect flight to Buenos Aires from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario to Buenos Aires with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Buenos Aires flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Buenos Aires become cheaper?

Yes! Start tracking prices for Ontario to Buenos Aires flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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