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Cheap flights from Ontario to Buenos Aires from C$ 400

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUE
27 Apr — 4 May1
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 22 April 2025.

Round-trip from

C$ 999

One-way from

C$ 400

Popular in

December

Cheapest in

September

Average price

C$ 1,179
Arajet
  • Arajet
  • 17/9-24/9
  • 2 total stops
  • 28h 42m total
  • Ontario to Buenos Aires
27/5
  • 27/5
  • 2 total stops
  • 28h 40m total
  • Ontario to Buenos Aires
Highest demand for flights based on searches. 5% potential increase in price (C$ 92 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 29 potential savings vs. average RT price).
Average for round-trip flights in April 2025

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 22 April 2025.

Tue 6/511:40 a.m.YYZ - AEP
2 stops20h 40mMultiple Airlines
Tue 13/59:55 p.m.AEP - YYZ
2 stops21h 00mMultiple Airlines
Deal found 22/4C$ 1,013
Wed 29/106:55 p.m.YYZ - EZE
1 stop14h 12mArajet
Tue 4/114:25 a.m.EZE - YYZ
1 stop14h 30mArajet
Deal found 22/4C$ 1,027
Wed 10/911:25 p.m.YUL - EZE
1 stop14h 55mAvianca
Thu 25/91:40 a.m.EZE - YUL
1 stop21h 25mAvianca
Deal found 22/4C$ 1,038
Mon 16/68:41 a.m.YUL - EZE
1 stop15h 21mCopa Airlines
Mon 23/610:05 a.m.EZE - YUL
1 stop15h 35mCopa Airlines
Deal found 22/4C$ 1,040
Mon 26/59:00 a.m.YYZ - EZE
1 stop36h 11mCopa Airlines
Sat 7/63:47 a.m.EZE - YYZ
1 stop22h 26mCopa Airlines
Deal found 22/4C$ 1,052
Wed 29/106:00 a.m.YYZ - EZE
2 stops23h 20mUnited Airlines
Wed 5/1110:05 p.m.EZE - YYZ
1 stop18h 05mUnited Airlines
Deal found 21/4C$ 1,063
Mon 14/79:15 a.m.YUL - EZE
2 stops45h 45mUnited Airlines
Tue 29/79:00 p.m.EZE - YUL
2 stops38h 40mUnited Airlines
Deal found 22/4C$ 1,069
Fri 26/99:05 a.m.YYZ - EZE
1 stop14h 05mAvianca
Sat 4/104:45 p.m.EZE - YYZ
1 stop15h 30mAvianca
Deal found 21/4C$ 1,070
Tue 10/611:40 a.m.YYZ - EZE
2 stops29h 32mMultiple Airlines
Tue 24/67:13 p.m.EZE - YYZ
2 stops23h 42mMultiple Airlines
Deal found 21/4C$ 1,074
Fri 2/58:55 p.m.YOW - EZE
2 stops16h 35mAir Canada
Thu 15/54:35 p.m.EZE - YOW
2 stops17h 26mAir Canada
Deal found 22/4C$ 1,075
Tue 13/58:25 p.m.YTZ - EZE
2 stops17h 05mAir Canada
Wed 21/54:35 p.m.EZE - YTZ
2 stops18h 12mAir Canada
Deal found 21/4C$ 1,081
Wed 7/510:15 p.m.YYZ - EZE
1 stop15h 15mAir Canada
Wed 11/64:35 p.m.EZE - YYZ
1 stop15h 15mAir Canada
Deal found 21/4C$ 1,088

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 22 April 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

Tue 6/5

11:40 a.m.-9:20 a.m.

2 stops20h 40m

Buenos Aires Jorge Newbery

Tue 13/5

9:55 p.m.-5:55 p.m.

2 stops21h 00m

C$ 1,013

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Wed 10/9

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

1 stop14h 55m

Buenos Aires Ministro Pistarini

Thu 25/9

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

1 stop21h 25m

C$ 1,038

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 16/6

8:41 a.m.-1:02 a.m.

1 stop15h 21m

Buenos Aires Ministro Pistarini

Mon 23/6

10:05 a.m.-12:40 a.m.

1 stop15h 35m

C$ 1,040

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Mon 26/5

9:00 a.m.-10:11 p.m.

1 stop36h 11m

Buenos Aires Ministro Pistarini

Sat 7/6

3:47 a.m.-1:13 a.m.

1 stop22h 26m

C$ 1,052

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Tue 7/10

9:00 a.m.-8:00 a.m.

2 stops22h 00m

Buenos Aires Ministro Pistarini

Tue 21/10

9:00 p.m.-7:05 p.m.

2 stops23h 05m

C$ 1,063

MontrealBuenos Aires

YUL - EZE

YULEZE

Montreal Pierre Elliott Trudeau Intl

Mon 14/7

9:15 a.m.-8:00 a.m.

2 stops21h 45m

Buenos Aires Ministro Pistarini

Thu 31/7

9:00 p.m.-5:26 p.m.

2 stops45h 26m

C$ 1,069

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Fri 26/9

9:05 a.m.-12:10 a.m.

1 stop14h 05m

Buenos Aires Ministro Pistarini

Sat 4/10

4:45 p.m.-7:15 a.m.

1 stop15h 30m

C$ 1,070

TorontoBuenos Aires

YYZ - EZE

YYZEZE

Toronto Pearson Intl

Tue 10/6

11:40 a.m.-6:12 p.m.

2 stops29h 32m

Buenos Aires Ministro Pistarini

Tue 24/6

7:13 p.m.-5:55 p.m.

2 stops23h 42m

C$ 1,074

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Fri 2/5

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

2 stops16h 35m

Buenos Aires Ministro Pistarini

Thu 15/5

4:35 p.m.-9:01 a.m.

2 stops17h 26m

C$ 1,075

TorontoBuenos Aires

YTZ - EZE

YTZEZE

Toronto Island

Tue 13/5

8:25 p.m.-2:30 p.m.

2 stops17h 05m

Buenos Aires Ministro Pistarini

Wed 21/5

4:35 p.m.-9:47 a.m.

2 stops18h 12m

C$ 1,081

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/4

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 22 April 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 22 April 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.

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 Copa Airlines. According to our data, you can fly for as low as C$ 498. Users have also found prices from C$ 502 and C$ 505 on Air Canada and Avianca, respectively.

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

  • 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 22 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapestC$ 558AverageC$ 1,230FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
ArajetCheapestC$ 624AverageC$ 875FlexibilityNo cancel feeOn-timeN/A
Search Arajet flights
LATAM AirlinesCheapestC$ 767AverageC$ 1,303FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
DeltaCheapestC$ 799AverageC$ 1,145FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 988AverageC$ 1,361FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 999AverageC$ 1,320FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
AviancaCheapestC$ 1,017AverageC$ 1,270FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapestC$ 1,060AverageC$ 1,450FlexibilityNo 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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