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Cheap flights from Ottawa to Buenos Aires from C$ 547

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — BUE
1 Apr — 8 Apr1
1 adult

Cheap flight deals from Ottawa to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 March 2025.

Round-trip from

C$ 1,066

One-way from

C$ 547

Popular in

December

Cheapest in

April

Average price

C$ 1,267
United Airlines
  • United Airlines
  • 21/8-18/9
  • 4 total stops
  • 73h 31m total
  • Ottawa to Buenos Aires
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Air Canada
  • Air Canada
  • 10/5
  • 2 total stops
  • 39h 35m total
  • Ottawa to Buenos Aires
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Highest demand for flights based on searches. 9% potential increase in price (C$ 214 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 55 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Ottawa to Buenos Aires

Cheapest flights from Ottawa to Buenos Aires
Explore the most affordable flight options available from Ottawa to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 March 2025.

Thu 21/87:25 p.m.YOW - EZE
2 stops35h 35mUnited Airlines
Thu 18/99:00 p.m.EZE - YOW
2 stops37h 56mUnited Airlines
Deal found 25/3C$ 1,066
Sun 11/58:55 p.m.YOW - EZE
2 stops16h 35mAir Canada
Mon 26/54:35 p.m.EZE - YOW
2 stops18h 50mAir Canada
Deal found 26/3C$ 1,107
Mon 7/45:55 a.m.YOW - EZE
2 stops26h 50mDelta
Thu 17/48:10 p.m.EZE - YOW
2 stops28h 59mDelta
Deal found 26/3C$ 1,293
Sun 11/55:55 a.m.YOW - AEP
3 stops23h 45mMultiple Airlines
Mon 26/511:40 a.m.AEP - YOW
3 stops37h 42mMultiple Airlines
Deal found 26/3C$ 1,377
Wed 9/45:50 p.m.YOW - EZE
1 stop32h 35mMultiple Airlines
Tue 15/42:30 a.m.EZE - YOW
2 stops40h 10mMultiple Airlines
Deal found 26/3C$ 1,652
Mon 7/47:05 p.m.YOW - AEP
2 stops21h 15mAir Canada
Fri 11/41:40 p.m.AEP - YOW
2 stops29h 29mAir Canada
Deal found 26/3C$ 2,178
Thu 21/89:55 p.m.YOW - EZE
2 stops25h 15mAvianca
Wed 17/91:40 a.m.EZE - YOW
2 stops24h 54mAvianca
Deal found 25/3C$ 2,200
Wed 9/45:15 a.m.YOW - AEP
2 stops23h 25mAvianca
Sat 12/47:00 a.m.AEP - YOW
2 stops19h 34mAvianca
Deal found 26/3C$ 2,560

Cheapflights Fare Finder

Customize your flight search to find flights from Ottawa 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 27 March 2025.
Use the filters below to find and compare flights from Ottawa to Buenos Aires that are best for you.

Fly from

Ottawa

Fly to

Buenos Aires

Route

Depart

Return

Price

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Thu 21/8

7:25 p.m.-8:00 a.m.

2 stops35h 35m

Buenos Aires Ministro Pistarini

Thu 18/9

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

2 stops37h 56m

C$ 1,066

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Sun 11/5

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

2 stops16h 35m

Buenos Aires Ministro Pistarini

Mon 26/5

4:35 p.m.-10:25 a.m.

2 stops18h 50m

C$ 1,107

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Mon 7/4

5:55 a.m.-9:45 a.m.

2 stops26h 50m

Buenos Aires Ministro Pistarini

Thu 17/4

8:10 p.m.-12:09 a.m.

2 stops28h 59m

C$ 1,293

OttawaBuenos Aires

YOW - AEP

YOWAEP

Ottawa

Sun 11/5

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

3 stops23h 45m

Buenos Aires Jorge Newbery

Mon 26/5

11:40 a.m.-12:22 a.m.

3 stops37h 42m

C$ 1,377

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Wed 9/4

5:50 p.m.-3:25 a.m.

1 stop32h 35m

Buenos Aires Ministro Pistarini

Tue 15/4

2:30 a.m.-5:40 p.m.

2 stops40h 10m

C$ 1,652

OttawaBuenos Aires

YOW - AEP

YOWAEP

Ottawa

Mon 7/4

7:05 p.m.-5:20 p.m.

2 stops21h 15m

Buenos Aires Jorge Newbery

Fri 11/4

1:40 p.m.-6:09 p.m.

2 stops29h 29m

C$ 2,178

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Thu 21/8

9:55 p.m.-12:10 a.m.

2 stops25h 15m

Buenos Aires Ministro Pistarini

Wed 17/9

1:40 a.m.-1:34 a.m.

2 stops24h 54m

C$ 2,200

OttawaBuenos Aires

YOW - AEP

YOWAEP

Ottawa

Wed 9/4

5:15 a.m.-5:40 a.m.

2 stops23h 25m

Buenos Aires Jorge Newbery

Sat 12/4

7:00 a.m.-1:34 a.m.

2 stops19h 34m

C$ 2,560

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Sat 10/5

9:55 p.m.-2:30 p.m.

2 stops39h 35m

C$ 547

OttawaBuenos Aires

YOW - AEP

YOWAEP

Ottawa

Sat 10/5

4:40 p.m.-9:20 a.m.

3 stops39h 40m

C$ 595

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/3

Showing 1-10 of 11 results
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Best time to book a flight from Ottawa to Buenos Aires

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

What is the cheapest month to book a flight from Ottawa to Buenos Aires?

Currently, November is the cheapest month in which you can book a flight from Ottawa to Buenos Aires (average of C$ 816). Flying from Ottawa 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 YOW to BUE?

Find hourly flight availability from Ottawa 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 27 March 2025.

One of the essential ways to save on airfare from Ottawa to Buenos Aires is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 33% on airfare.

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 27 March 2025.
See what other customers who have flown with Delta, United Airlines and Air Canada from Ottawa to Buenos Aires have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,894 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
Delta
8.0
Very good
7,894 reviews
Delta
8.0
Very good
7,894 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
United Airlines
7.4
Good
8,602 reviews
Delta
8.0
Very good
7,894 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
Air Canada
7.0
Good
8,972 reviews
Delta
8.0
Very good
7,894 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.
Avianca
6.7
Okay
2,298 reviews
Delta
8.0
Very good
7,894 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
4.0
Okay

Richard,Sep 2023

YYZ - ATL

Four hour delay (missing two screws). Seats in need of repair.

Related info for your journey

Find useful and relevant information for your journey from Ottawa 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 airport do you fly from for flights from Ottawa to Buenos Aires?

    Most people fly from Ottawa (YOW) if they book a flight from Ottawa to Buenos Aires. On average, Ottawa has 0 outbound flights to Buenos Aires per day from 2 airlines. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.

  • What are the cheapest airlines flying from Ottawa to Buenos Aires round-trip?

    Cheapflights users have booked flights from Ottawa to Buenos Aires round-trip from C$ 1,066. Other airlines that can offer you cheap pricing are Air Canada, from C$ 1,107, and Delta, from C$ 1,293. United Airlines is currently priced 24% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ottawa 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 Ottawa to Buenos Aires?

    Currently, November is the cheapest month in which you can book a flight from Ottawa to Buenos Aires (average of C$ 816). Flying from Ottawa 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 Ottawa to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ottawa to Buenos Aires

Discover the top 2 airlines that operate flights from Ottawa 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 27 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,166AverageC$ 1,349FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 1,219AverageC$ 1,726FlexibilityNo 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 Ottawa to Buenos Aires?

Cheapflights helps you search for flights from Ottawa 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 Ottawa to Buenos Aires?

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to Buenos Aires for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from Ottawa to Buenos Aires with no change fees.

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

Not ready to book yet? You can track prices for flights from Ottawa to Buenos Aires on Cheapflights with our Price Alert feature and get notified when better prices are available.

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