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Cheap flights from Ontario to Buenos Aires from C$ 432

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 31/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUE
5 Aug — 12 Aug1
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 31 July 2025.

Round-trip from

C$ 897

One-way from

C$ 432

Popular in

December

Cheapest in

June

Average price

C$ 1,360
Arajet
  • Arajet
  • 31/12-26/2
  • 2 total stops
  • 30h 28m total
  • Ontario to Buenos Aires
Search Deals
Arajet
  • Arajet
  • 31/12
  • 1 total stop
  • 15h 20m total
  • Ontario to Buenos Aires
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 124 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 31 July 2025.

Wed 31/126:45 a.m.YUL - EZE
1 stop15h 20mArajet
Thu 26/211:07 a.m.EZE - YUL
1 stop15h 08mArajet
Deal found 30/7C$ 897
Thu 30/106:00 p.m.YYZ - EZE
2 stops19h 55mLATAM Airlines
Sun 16/113:50 p.m.EZE - YYZ
2 stops23h 18mLATAM Airlines
Deal found 29/7C$ 978
Tue 7/106:00 p.m.YYZ - AEP
2 stops21h 05mLATAM Airlines
Tue 14/102:55 p.m.AEP - YYZ
2 stops21h 26mLATAM Airlines
Deal found 29/7C$ 983
Mon 3/1112:36 p.m.YUL - AEP
2 stops19h 54mLATAM Airlines
Tue 11/115:15 p.m.AEP - YUL
2 stops25h 49mLATAM Airlines
Deal found 28/7C$ 984
Mon 27/106:41 p.m.YUL - EZE
2 stops18h 19mLATAM Airlines
Thu 6/117:55 a.m.EZE - YUL
2 stops18h 03mLATAM Airlines
Deal found 28/7C$ 985
Fri 5/911:50 p.m.YYZ - EZE
2 stops20h 00mMultiple Airlines
Thu 18/911:07 a.m.EZE - YYZ
1 stop14h 23mMultiple Airlines
Deal found 29/7C$ 985
Wed 27/86:30 a.m.YYZ - AEP
2 stops23h 10mMultiple Airlines
Wed 3/910:55 p.m.AEP - YYZ
2 stops26h 35mMultiple Airlines
Deal found 30/7C$ 1,021
Wed 17/99:00 a.m.YYZ - EZE
1 stop18h 13mCopa Airlines
Tue 30/910:06 a.m.EZE - YYZ
1 stop16h 07mCopa Airlines
Deal found 29/7C$ 1,023
Mon 13/1011:25 p.m.YUL - EZE
1 stop23h 45mAvianca
Thu 30/101:45 a.m.EZE - YUL
1 stop20h 50mAvianca
Deal found 29/7C$ 1,032
Wed 5/118:00 a.m.YYZ - EZE
2 stops19h 05mAvianca
Sun 16/111:40 a.m.EZE - YYZ
1 stop22h 55mAvianca
Deal found 29/7C$ 1,039
Wed 26/116:30 a.m.YYZ - EZE
1 stop15h 35mArajet
Tue 9/1211:07 a.m.EZE - YYZ
1 stop14h 48mArajet
Deal found 29/7C$ 1,052
Wed 29/1011:00 p.m.YUL - AEP
1 stop29h 40mAvianca
Wed 3/127:00 a.m.AEP - YUL
1 stop15h 35mAvianca
Deal found 30/7C$ 1,056

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 31 July 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 31/12

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

1 stop15h 20m

Buenos Aires Ministro Pistarini

Thu 26/2

11:07 a.m.-12:15 a.m.

1 stop15h 08m

C$ 897

TorontoBuenos Aires

YYZ - AEP

YYZAEP

Toronto Pearson Intl

Tue 7/10

6:00 p.m.-4:05 p.m.

2 stops21h 05m

Buenos Aires Jorge Newbery

Tue 14/10

2:55 p.m.-11:21 a.m.

2 stops21h 26m

C$ 983

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Tue 7/10

6:00 p.m.-1:55 p.m.

2 stops18h 55m

Buenos Aires Ministro Pistarini

Tue 14/10

3:55 a.m.-11:58 p.m.

2 stops21h 03m

C$ 983

MontrealBuenos Aires

YUL - AEP

YULAEP

Montreal Pierre Elliott Trudeau Intl

Mon 3/11

12:36 p.m.-10:30 a.m.

2 stops19h 54m

Buenos Aires Jorge Newbery

Tue 11/11

5:15 p.m.-5:04 p.m.

2 stops25h 49m

C$ 984

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Fri 5/9

11:50 p.m.-8:50 p.m.

2 stops20h 00m

Buenos Aires Ministro Pistarini

Thu 18/9

11:07 a.m.-12:30 a.m.

1 stop14h 23m

C$ 985

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 27/10

6:41 p.m.-2:00 p.m.

2 stops18h 19m

Buenos Aires Ministro Pistarini

Thu 6/11

7:55 a.m.-11:58 p.m.

2 stops18h 03m

C$ 985

TorontoBuenos Aires

YYZ - AEP

YYZAEP

Toronto Pearson Intl

Wed 27/8

6:30 a.m.-6:40 a.m.

2 stops23h 10m

Buenos Aires Jorge Newbery

Wed 3/9

10:55 p.m.-12:30 a.m.

2 stops26h 35m

C$ 1,021

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Wed 17/9

9:00 a.m.-4:13 a.m.

1 stop18h 13m

Buenos Aires Ministro Pistarini

Tue 30/9

10:06 a.m.-1:13 a.m.

1 stop16h 07m

C$ 1,023

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 13/10

11:25 p.m.-12:10 a.m.

1 stop23h 45m

Buenos Aires Ministro Pistarini

Thu 30/10

1:45 a.m.-9:35 p.m.

1 stop20h 50m

C$ 1,032

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Mon 13/10

11:50 p.m.-3:20 p.m.

1 stop14h 30m

Buenos Aires Ministro Pistarini

Thu 23/10

1:40 a.m.-10:30 p.m.

1 stop21h 50m

C$ 1,041

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

Showing 1-10 of 56 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 31 July 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.

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 31 July 2025.
Get a feel of what it's like to fly with Delta,LATAM Airlines, andCopa Airlines from Ontario to Buenos Aires by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
LATAM Airlines
7.5
Good
1,822 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Copa Airlines
7.5
Good
1,493 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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$ 432. Users have also found prices from C$ 483 and C$ 509 on Avianca and Air Canada, 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 Toronto Pearson Intl - Buenos Aires Ministro Pistarini, Montreal Pierre Elliott Trudeau Intl - Buenos Aires Ministro Pistarini or Toronto Pearson Intl - Buenos Aires Jorge Newbery 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

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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.
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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 31 July 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapestC$ 305AverageC$ 1,262FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
Copa AirlinesCheapestC$ 560AverageC$ 1,172FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
American AirlinesCheapestC$ 592AverageC$ 1,233FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
ArajetCheapestC$ 625AverageC$ 890FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
DeltaCheapestC$ 800AverageC$ 1,128FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 851AverageC$ 1,335FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
AviancaCheapestC$ 1,018AverageC$ 1,260FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapestC$ 1,057AverageC$ 1,435FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Ontario to Buenos Aires via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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