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Cheap flights from Ontario to Buenos Aires from C$ 472

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 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUE
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Round-trip from

C$ 1,026

One-way from

C$ 472

Popular in

December

Cheapest in

September

Average price

C$ 1,100
Copa Airlines
  • Copa Airlines
  • 6/11-24/11
  • 2 total stops
  • 38h 39m total
  • Ontario to Buenos Aires
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Avianca
  • Avianca
  • 26/11
  • 1 total stop
  • 19h 55m total
  • Ontario to Buenos Aires
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 132 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 39 potential savings vs. average RT price).
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Average for round-trip flights in September 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 16 September 2025.

Thu 6/118:30 a.m.YYZ - EZE
1 stop17h 46mCopa Airlines
Mon 24/115:16 a.m.EZE - YYZ
1 stop20h 53mCopa Airlines
Deal found 15/9C$ 1,026
Wed 5/117:55 a.m.YYZ - AEP
1 stop19h 45mAvianca
Wed 12/117:00 a.m.AEP - YYZ
1 stop17h 35mAvianca
Deal found 14/9C$ 1,029
Wed 5/117:55 a.m.YYZ - EZE
1 stop14h 40mAvianca
Mon 17/117:35 a.m.EZE - YYZ
1 stop17h 00mAvianca
Deal found 14/9C$ 1,029
Tue 25/118:30 a.m.YYZ - EZE
1 stop21h 29mCopa Airlines
Sun 30/113:41 a.m.EZE - YYZ
1 stop22h 28mCopa Airlines
Deal found 14/9C$ 1,031
Mon 27/108:55 a.m.YYZ - AEP
1 stop19h 45mAvianca
Sun 9/117:00 a.m.AEP - YYZ
1 stop17h 35mAvianca
Deal found 15/9C$ 1,032
Mon 13/109:00 a.m.YYZ - EZE
1 stop17h 58mCopa Airlines
Mon 20/105:08 a.m.EZE - YYZ
1 stop21h 05mCopa Airlines
Deal found 13/9C$ 1,033
Fri 7/117:55 a.m.YYZ - EZE
1 stop19h 55mAvianca
Thu 13/111:40 a.m.EZE - YYZ
1 stop22h 55mAvianca
Deal found 13/9C$ 1,036
Tue 25/114:00 p.m.YYZ - EZE
2 stops21h 50mAvianca
Mon 1/127:35 a.m.EZE - YYZ
1 stop17h 00mAvianca
Deal found 14/9C$ 1,039
Thu 6/118:30 a.m.YYZ - EZE
1 stop17h 46mCopa Airlines
Sat 22/113:57 a.m.EZE - YYZ
1 stop22h 12mCopa Airlines
Deal found 15/9C$ 1,046
Mon 27/1011:00 p.m.YUL - EZE
1 stop15h 50mAvianca
Mon 10/117:35 a.m.EZE - YUL
1 stop15h 00mAvianca
Deal found 14/9C$ 1,049
Fri 7/117:55 a.m.YYZ - EZE
1 stop19h 55mAvianca
Sun 16/117:35 a.m.EZE - YYZ
1 stop17h 00mAvianca
Deal found 13/9C$ 1,049
Sun 12/109:00 a.m.YYZ - EZE
1 stop18h 19mCopa Airlines
Sat 25/105:08 a.m.EZE - YYZ
1 stop21h 07mCopa Airlines
Deal found 14/9C$ 1,051

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 16 September 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

TorontoBuenos Aires

YYZ - AEP

YYZAEP

Toronto Pearson Intl

Mon 10/11

7:55 a.m.-5:40 a.m.

1 stop19h 45m

Buenos Aires Jorge Newbery

Thu 13/11

7:00 a.m.-10:35 p.m.

1 stop17h 35m

C$ 1,029

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Tue 25/11

8:30 a.m.-7:59 a.m.

1 stop21h 29m

Buenos Aires Ministro Pistarini

Sun 30/11

3:41 a.m.-12:09 a.m.

1 stop22h 28m

C$ 1,031

TorontoBuenos Aires

YYZ - AEP

YYZAEP

Toronto Pearson Intl

Mon 27/10

8:55 a.m.-5:40 a.m.

1 stop19h 45m

Buenos Aires Jorge Newbery

Sun 9/11

7:00 a.m.-10:35 p.m.

1 stop17h 35m

C$ 1,032

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Sun 9/11

8:30 a.m.-4:16 a.m.

1 stop17h 46m

Buenos Aires Ministro Pistarini

Sat 22/11

10:01 a.m.-12:09 a.m.

1 stop16h 08m

C$ 1,046

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Thu 6/11

8:30 a.m.-4:16 a.m.

1 stop17h 46m

Buenos Aires Ministro Pistarini

Sat 22/11

3:57 a.m.-12:09 a.m.

1 stop22h 12m

C$ 1,047

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Sun 12/10

9:00 a.m.-4:19 a.m.

1 stop18h 19m

Buenos Aires Ministro Pistarini

Sat 25/10

5:08 a.m.-1:15 a.m.

1 stop21h 07m

C$ 1,051

TorontoBuenos Aires

YTZ - EZE

YTZEZE

Toronto Island

Sat 7/3

6:30 p.m.-3:10 p.m.

2 stops18h 40m

Buenos Aires Ministro Pistarini

Sat 21/3

4:45 p.m.-11:55 a.m.

2 stops20h 10m

C$ 1,061

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Thu 6/11

6:10 a.m.-7:20 a.m.

1 stop23h 10m

Buenos Aires Ministro Pistarini

Mon 24/11

11:55 p.m.-4:02 p.m.

2 stops18h 07m

C$ 1,062

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Mon 12/1

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

2 stops18h 35m

Buenos Aires Ministro Pistarini

Mon 16/2

11:55 p.m.-2:17 p.m.

1 stop16h 22m

C$ 1,062

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Thu 20/11

8:30 a.m.-4:16 a.m.

1 stop17h 46m

Buenos Aires Ministro Pistarini

Tue 2/12

3:41 a.m.-12:09 a.m.

1 stop22h 28m

C$ 1,062

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

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, September is the cheapest month in which you can book a flight from Region of Ontario to Buenos Aires (average of C$ 810). 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 16 September 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.

How much does it cost to fly round-trip from Region of Ontario to Buenos Aires?

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.

  • How long is the flight from Region of Ontario to Buenos Aires?

    Avianca, Copa Airlines, and Air Canada can get you from Region of Ontario to Buenos Aires in just under 18h 40m. Your travel time can differ by up to 2h 49m. There are 8969 km between Region of Ontario and Buenos Aires. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    For one-way options, check prices for Avianca. According to our data, you can fly for as low as C$ 472. Users have also found prices from C$ 515 and C$ 543 on Air Canada and United 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 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, September is the cheapest month in which you can book a flight from Region of Ontario to Buenos Aires (average of C$ 810). 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.
Pearson Intl to Ministro Pistarini flights
Pearson Intl to Jorge Newbery flights
Pierre Elliott Trudeau Intl to Ministro Pistarini flights
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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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapestC$ 305AverageC$ 1,177FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
Copa AirlinesCheapestC$ 559AverageC$ 1,162FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
American AirlinesCheapestC$ 591AverageC$ 1,231FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 651AverageC$ 1,333FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 690AverageC$ 1,126FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
ArajetCheapestC$ 811AverageC$ 889FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
AviancaCheapestC$ 978AverageC$ 1,206FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapestC$ 1,064AverageC$ 1,427FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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