What is the cheapest airline that flies from Ottawa to Buenos Aires?

United Airlines and Avianca are the most popular carriers operating from Ottawa to Buenos Aires

Which airlines fly to Buenos Aires?

Air Canada, Copa Airlines and United Airlines are the top three most popular airlines that fly to Buenos Aires from Ottawa according to our data. Air Canada is the first choice among our users, with 55% of people opting to fly with this airline when travelling to Buenos Aires. Keep in mind that there are 6 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ottawa Airport to Buenos Aires?

Prices for flights from Ottawa Airport to Buenos Aires refresh daily.

How many operators does momondo search for flights from Ottawa Airport to Buenos Aires?

As of December 2025, there are 2 operators available to choose from for flights from Ottawa Airport to Buenos Aires.

How old do you have to be to fly from Ottawa Airport to Buenos Aires?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Buenos Aires.

What documentation or ID do you need to fly to Buenos Aires?

The travel and health documents required for your trip to Buenos Aires can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 529 Cheap Flights from Ottawa to Buenos Aires in 2025/26

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5:59 p.m. - 7:20 a.m.

YOW

EZE

35h 21m2 stops

11:55 p.m. - 4:30 p.m.

EZE

YOW

18h 35m2 stops

C$ 1,112United Airlines

Wed, 31 Dec - Sat, 28 Feb

7:27 p.m. - 7:20 a.m.

YOW

EZE

33h 53m2 stops

10:05 p.m. - 4:30 p.m.

EZE

YOW

20h 25m2 stops

C$ 1,116United Airlines

Wed, 31 Dec - Sat, 28 Feb

6:00 a.m. - 7:20 a.m.

YOW

EZE

23h 20m2 stops

10:05 p.m. - 11:54 p.m.

EZE

YOW

27h 49m2 stops

C$ 1,117United Airlines

Wed, 31 Dec - Sat, 28 Feb

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

YOW

EZE

21h 35m2 stops

10:05 p.m. - 6:52 p.m.

EZE

YOW

22h 47m2 stops

C$ 1,200United Airlines

Sun, 11 Jan - Wed, 21 Jan

5:45 a.m. - 2:25 p.m.

YOW

EZE

55h 40m3 stops

4:35 p.m. - 11:05 a.m.

EZE

YOW

19h 30m2 stops

C$ 1,205Air Canada

Sat, 11 Apr - Sat, 9 May

7:55 p.m. - 3:10 p.m.

YOW

EZE

41h 15m3 stops

4:45 p.m. - 9:23 a.m.

EZE

YOW

18h 38m2 stops

C$ 1,206Air Canada

Wed, 11 Feb - Sun, 1 Mar

9:45 a.m. - 7:20 a.m.

YOW

EZE

19h 35m2 stops

11:55 p.m. - 11:54 p.m.

EZE

YOW

25h 59m2 stops

C$ 1,214United Airlines

Sun, 8 Feb - Tue, 24 Feb

2:50 p.m. - 9:35 a.m.

YOW

EZE

17h 45m2 stops

11:00 a.m. - 9:23 a.m.

EZE

YOW

23h 23m2 stops

C$ 1,224Multiple Airlines

Mon, 9 Mar - Wed, 18 Mar

8:25 p.m. - 5:20 p.m.

YOW

AEP

42h 55m2 stops

9:00 a.m. - 7:18 p.m.

AEP

YOW

36h 18m2 stops

C$ 2,908Air Canada

Sun, 1 Feb - Thu, 5 Feb

8:25 p.m. - 5:20 p.m.

YOW

AEP

42h 55m2 stops

9:00 a.m. - 1:38 a.m.

AEP

YOW

42h 38m2 stops

C$ 2,913Air Canada

Sun, 1 Feb - Thu, 5 Feb

United Airlines flights from Ottawa to Buenos Aires

Our best United Airlines deals on Ottawa to Buenos Aires flight tickets

United Airlines

31 Dec

YOW5:59 p.m.Ottawa

35h 21m

2 stops

EZE7:20 a.m.Buenos Aires Ministro Pistarini

28 Feb

EZE11:55 p.m.Buenos Aires Ministro Pistarini

18h 35m

2 stops

YOW4:30 p.m.Ottawa

C$ 1,112

Find similar

United Airlines

31 Dec

YOW7:27 p.m.Ottawa

33h 53m

2 stops

EZE7:20 a.m.Buenos Aires Ministro Pistarini

28 Feb

EZE10:05 p.m.Buenos Aires Ministro Pistarini

20h 25m

2 stops

YOW4:30 p.m.Ottawa

C$ 1,116

Find similar

United Airlines

31 Dec

YOW6:00 a.m.Ottawa

23h 20m

2 stops

EZE7:20 a.m.Buenos Aires Ministro Pistarini

28 Feb

EZE10:05 p.m.Buenos Aires Ministro Pistarini

27h 49m

2 stops

YOW11:54 p.m.Ottawa

C$ 1,117

Find similar

Air Canada flights from Ottawa to Buenos Aires

Our best Air Canada deals on Ottawa to Buenos Aires flight tickets

Air Canada

11 Apr

YOW5:45 a.m.Ottawa

55h 40m

3 stops

EZE2:25 p.m.Buenos Aires Ministro Pistarini

9 May

EZE4:35 p.m.Buenos Aires Ministro Pistarini

19h 30m

2 stops

YOW11:05 a.m.Ottawa

C$ 1,205

Find similar

Air Canada

11 Feb

YOW7:55 p.m.Ottawa

41h 15m

3 stops

EZE3:10 p.m.Buenos Aires Ministro Pistarini

1 Mar

EZE4:45 p.m.Buenos Aires Ministro Pistarini

18h 38m

2 stops

YOW9:23 a.m.Ottawa

C$ 1,206

Find similar

Air Canada

11 Apr

YOW8:05 p.m.Ottawa

41h 20m

2 stops

EZE2:25 p.m.Buenos Aires Ministro Pistarini

9 May

EZE4:35 p.m.Buenos Aires Ministro Pistarini

17h 09m

2 stops

YOW8:44 a.m.Ottawa

C$ 1,302

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Wed 31/12

5:59 p.m.-7:20 a.m.

2 stops35h 21m

Buenos Aires Ministro Pistarini

Sat 28/2

11:55 p.m.-4:30 p.m.

2 stops18h 35m

C$ 1,112

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Wed 31/12

7:27 p.m.-7:20 a.m.

2 stops33h 53m

Buenos Aires Ministro Pistarini

Sat 28/2

10:05 p.m.-4:30 p.m.

2 stops20h 25m

C$ 1,116

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Wed 31/12

6:00 a.m.-7:20 a.m.

2 stops23h 20m

Buenos Aires Ministro Pistarini

Sat 28/2

10:05 p.m.-11:54 p.m.

2 stops27h 49m

C$ 1,117

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Sun 11/1

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

2 stops21h 35m

Buenos Aires Ministro Pistarini

Wed 21/1

10:05 p.m.-6:52 p.m.

2 stops22h 47m

C$ 1,200

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Sat 11/4

5:45 a.m.-2:25 p.m.

3 stops55h 40m

Buenos Aires Ministro Pistarini

Sat 9/5

4:35 p.m.-11:05 a.m.

2 stops19h 30m

C$ 1,205

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Wed 11/2

7:55 p.m.-3:10 p.m.

3 stops41h 15m

Buenos Aires Ministro Pistarini

Sun 1/3

4:45 p.m.-9:23 a.m.

2 stops18h 38m

C$ 1,206

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Sun 8/2

9:45 a.m.-7:20 a.m.

2 stops19h 35m

Buenos Aires Ministro Pistarini

Tue 24/2

11:55 p.m.-11:54 p.m.

2 stops25h 59m

C$ 1,214

OttawaBuenos Aires

YOW - EZE

YOWEZE

Ottawa

Mon 9/3

2:50 p.m.-9:35 a.m.

2 stops17h 45m

Buenos Aires Ministro Pistarini

Wed 18/3

11:00 a.m.-9:23 a.m.

2 stops23h 23m

C$ 1,224

OttawaBuenos Aires

YOW - AEP

YOWAEP

Ottawa

Sun 1/2

8:25 p.m.-5:20 p.m.

2 stops42h 55m

Buenos Aires Jorge Newbery

Thu 5/2

9:00 a.m.-7:18 p.m.

2 stops36h 18m

C$ 2,908

OttawaBuenos Aires

YOW - AEP

YOWAEP

Ottawa

Sun 1/2

8:25 p.m.-5:20 p.m.

2 stops42h 55m

Buenos Aires Jorge Newbery

Thu 5/2

9:00 a.m.-1:38 a.m.

2 stops42h 38m

C$ 2,913

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ottawa to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Ottawa is in September. Flight prices, which tend to average around C$ 1,073, are often lower during this time because this is during the off-season. If you’re not able to fly to Buenos Aires in September, then October is your next best option. Flight prices from Ottawa to Buenos Aires during October average around C$ 1,156.

What is the cheapest day to depart on your flight to Buenos Aires?

The cheapest day to depart on your flight to Buenos Aires is on a Wednesday when prices can be found for as low as C$ 1,183. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to Buenos Aires for around C$ 1,682.

What is the cheapest time of day to depart on your flight to Buenos Aires?

According to our data, the cheapest time of day to fly to Buenos Aires is in the afternoon. momondo users have found flights departing from Ottawa to Buenos Aires in the afternoon for as low as C$ 1,156. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of C$ 1,712.

When to book flights from Ottawa to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ottawa to Buenos Aires (YOW to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Buenos Aires

Fastest flight time	17h 20m
Direct flights	None

The fastest flight from Ottawa to Buenos Aires takes 17h 20m

There are no direct flights from Ottawa to Buenos Aires. There are no popular flight routes from Ottawa to Buenos Aires.

Search flight deals

How far is Ottawa to Buenos Aires by plane?
There are 9061.5 km between Ottawa and Buenos Aires. In terms of flight time, this usually takes a little over 17h 20m.
When did momondo last update prices for flights from Ottawa Airport to Buenos Aires?
Prices for flights from Ottawa Airport to Buenos Aires refresh daily.
How many operators does momondo search for flights from Ottawa Airport to Buenos Aires?
As of December 2025, there are 2 operators available to choose from for flights from Ottawa Airport to Buenos Aires.
How old do you have to be to fly from Ottawa Airport to Buenos Aires?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The travel and health documents required for your trip to Buenos Aires can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Ottawa to Buenos Aires?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ottawa to Buenos Aires is Air Canada (57% of total bookings). The next most popular airline is United Airlines (43%).

Best airlines flying from Ottawa to Buenos Aires

Compare and see reviews for airlines that fly from Ottawa to Buenos Aires with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom C$ 1,031	Free Cancellation	Rating 7.4 9,092 reviews		Search United Airlines flights
Air Canada	PriceFrom C$ 1,101	Free Cancellation	Rating 7.1 10,515 reviews		Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Buenos Aires?

Finding the right flight to Buenos Aires from Ottawa is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

Can I find flights from Ottawa to Buenos Aires with flexible booking policies on momondo?

Flights from Ottawa to Buenos Aires with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ottawa to Buenos Aires?

Once all potential Ottawa to Buenos Aires flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ottawa to Buenos Aires right now. Can momondo alert me if prices change?

Price alerts on flights to Buenos Aires from Ottawa are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Buenos Aires Jorge Newbery Airport

Buenos Aires Ministro Pistarini Airport

Cheap flights from Ottawa to Buenos Aires from C$ 544

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Buenos Aires departing on 23/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

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Trusted and free

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Price Alerts

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United Airlines flights from Ottawa to Buenos Aires

Our best United Airlines deals on Ottawa to Buenos Aires flight tickets

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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Ottawa to Buenos Aires

What is the cheapest month to fly to Buenos Aires?

What is the cheapest day to depart on your flight to Buenos Aires?

What is the cheapest time of day to depart on your flight to Buenos Aires?

What is the cheapest airline that flies from Ottawa to Buenos Aires?

United Airlines and Avianca are the most popular carriers operating from Ottawa to Buenos Aires

Which airlines fly to Buenos Aires?

When to book flights from Ottawa to Buenos Aires

Cheap Ottawa to Buenos Aires (YOW to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Buenos Aires

Fastest flight time

Direct flights

How far is Ottawa to Buenos Aires by plane?

When did momondo last update prices for flights from Ottawa Airport to Buenos Aires?

How many operators does momondo search for flights from Ottawa Airport to Buenos Aires?

How old do you have to be to fly from Ottawa Airport to Buenos Aires?

What documentation or ID do you need to fly to Buenos Aires?

What is the most popular airline from Ottawa to Buenos Aires?

Best airlines flying from Ottawa to Buenos Aires

Compare and see reviews for airlines that fly from Ottawa to Buenos Aires with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Buenos Aires?

Can I find flights from Ottawa to Buenos Aires with flexible booking policies on momondo?

How can momondo help me find flights from Ottawa to Buenos Aires?

I’m not ready to book a flight from Ottawa to Buenos Aires right now. Can momondo alert me if prices change?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 27.4 km from Buenos Aires