Which airlines fly to Buenos Aires?

British Airways, Iberia, Lufthansa and Air Europa are the most popular airlines that fly from United Kingdom to Buenos Aires on a routine basis, according to our data. You should be able to find flights to Buenos Aires with these airlines and other airlines flying from United Kingdom.

KLM Flights to Buenos Aires

The most popular airline for flights to Buenos Aires on momondo is KLM, which operates 26 flights in this direction every week. Most depart out of Rio de Janeiro–Galeão Intl, with the best deal for KLM flights to Buenos Aires being £842 (round-trip, Birmingham to Buenos Aires, momondo searches within the last 72 hours). In 1,385 KLM reviews, it is rated 7.8 by momondo users.

Finnair Flights to Buenos Aires

Another popular choice for flights to Buenos Aires is Finnair (7.6/10, 1,323 reviews). Most Finnair flights landing in Buenos Aires will be arriving from Madrid Barajas, but there are 18 Finnair flights to Buenos Aires from all departure points globally so prices can vary significantly. The best Finnair deal found on momondo this week was £731 (London Heathrow to Buenos Aires, round-trip).

How long does it take to fly to Buenos Aires?

Flight times from United Kingdom to Buenos Aires vary, but if you’re flying out of London Heathrow and flying into Buenos Aires Ministro Pistarini (one of the most popular routes), then the duration is 16h 25m on average. Another popular route from United Kingdom to Buenos Aires is flying from Manchester to Buenos Aires Ministro Pistarini, which will take roughly 19h 55m. Keep in mind that layovers or delays could extend your travel time.

£355 Cheap Flights to Buenos Aires in 2025

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Find the cheapest flights from the United Kingdom to Buenos Aires

Round-trip

One-way

Last minute

Direct

Cheap return flights

21:40 - 05:50LHR-EZE

35h 10m1 stop

01:40 - 14:35EZE-LHR

33h 55m1 stop

£704Avianca

Find Deal

Wed, 12 Nov - Sun, 23 Nov

21:40 - 15:50LHR-EZE

21h 10m1 stop

07:35 - 14:35EZE-LHR

28h 00m1 stop

£721Avianca

Find Deal

Mon, 10 Nov - Fri, 28 Nov

14:50 - 06:20LHR-EZE

43h 30m2 stops

22:05 - 10:15EZE-LHR

33h 10m1 stop

£754Lufthansa

Find Deal

Sat, 25 Oct - Sun, 9 Nov

06:00 - 07:55MAN-EZE

28h 55m1 stop

17:45 - 22:30EZE-MAN

25h 45m1 stop

£787Lufthansa

Find Deal

Sun, 4 Jan - Mon, 16 Feb

06:10 - 20:05LHR-EZE

17h 55m1 stop

13:00 - 10:15EZE-LHR

17h 15m1 stop

£824British Airways

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Tue, 14 Oct - Sat, 25 Oct

19:15 - 16:20MAN-EZE

25h 05m1 stop

12:15 - 17:20EZE-MAN

25h 05m2 stops

£825British Airways

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Fri, 10 Oct - Fri, 17 Oct

17:25 - 08:50LGW-EZE

18h 25m1 stop

13:15 - 09:00EZE-LGW

16h 45m1 stop

£913Air Europa

Find Deal

Wed, 12 Nov - Mon, 24 Nov

17:25 - 08:50LGW-EZE

18h 25m1 stop

13:15 - 16:25EZE-LGW

24h 10m1 stop

£914Air Europa

Find Deal

Wed, 12 Nov - Mon, 24 Nov

11:45 - 21:00LGW-EZE

36h 15m1 stop

14:20 - 19:00EZE-LGW

25h 40m1 stop

£944Iberia

Find Deal

Mon, 1 Dec - Mon, 15 Dec

19:40 - 21:00LGW-EZE

28h 20m1 stop

13:00 - 09:10EZE-LGW

17h 10m1 stop

£949Iberia

Find Deal

Tue, 28 Oct - Sat, 15 Nov

Fly from

Route

Depart

Return

Price

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 12/11

21:40-05:50

1 stop35h 10m

Buenos Aires Ministro Pistarini

Sun 23/11

01:40-14:35

1 stop33h 55m

£704

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 10/11

21:40-15:50

1 stop21h 10m

Buenos Aires Ministro Pistarini

Fri 28/11

07:35-14:35

1 stop28h 00m

£721

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sat 25/10

14:50-06:20

2 stops43h 30m

Buenos Aires Ministro Pistarini

Sun 9/11

22:05-10:15

1 stop33h 10m

£754

ManchesterBuenos Aires

MAN - EZE

MANEZE

Manchester

Sun 4/1

06:00-07:55

1 stop28h 55m

Buenos Aires Ministro Pistarini

Mon 16/2

17:45-22:30

1 stop25h 45m

£787

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Tue 14/10

06:10-20:05

1 stop17h 55m

Buenos Aires Ministro Pistarini

Sat 25/10

13:00-10:15

1 stop17h 15m

£824

ManchesterBuenos Aires

MAN - EZE

MANEZE

Manchester

Fri 10/10

19:15-16:20

1 stop25h 05m

Buenos Aires Ministro Pistarini

Fri 17/10

12:15-17:20

2 stops25h 05m

£825

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Wed 12/11

17:25-08:50

1 stop18h 25m

Buenos Aires Ministro Pistarini

Mon 24/11

13:15-09:00

1 stop16h 45m

£913

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Wed 12/11

17:25-08:50

1 stop18h 25m

Buenos Aires Ministro Pistarini

Mon 24/11

13:15-16:25

1 stop24h 10m

£914

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Mon 1/12

11:45-21:00

1 stop36h 15m

Buenos Aires Ministro Pistarini

Mon 15/12

14:20-19:00

1 stop25h 40m

£944

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Tue 28/10

19:40-21:00

1 stop28h 20m

Buenos Aires Ministro Pistarini

Sat 15/11

13:00-09:10

1 stop17h 10m

£949

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Buenos Aires flights insights and trends

Explore insights for your Buenos Aires flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to Buenos Aires?

In general, March is the cheapest month to fly from United Kingdom to Buenos Aires. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £835. If you don’t want to visit Buenos Aires in March, then you should wait until January to fly from United Kingdom, when ticket prices are also cheap, with an average price of £842.

What is the absolute cheapest flight to Buenos Aires?

£17 is the cheapest deal found on momondo in the last two weeks for a flight to Buenos Aires. This flight is from Cordoba and is 88% cheaper than most flights to Buenos Aires. To find the cheapest price to Buenos Aires from your area, use momondo’s Airport-to-Airport Pricing Tool.

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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 Tuesday when prices can be found for as low as £987. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from United Kingdom because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,122.

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

Our most recent data shows that the best time of day to fly to Buenos Aires is in the afternoon. Flights from United Kingdom to Buenos Aires during this time can be as low as £815. Flights to Buenos Aires are more costly in the evening, with an average ticket price of £1,048. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around £1,001 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from United Kingdom for as low as £853 on momondo.

Cheapest flights to Buenos Aires

Find the cheapest flights to Buenos Aires from your nearest city or airport

Find flights from London Heathrow Airport to Buenos Aires Ministro Pistarini Airport

CHEAPEST MONTH TO FLY TO BUENOS AIRES FROM LONDON HEATHROW AIRPORT	January	13% cheaper	Flying from London Heathrow Airport to Buenos Aires costs on average just £848 in January
MOST EXPENSIVE MONTH TO FLY TO BUENOS AIRES FROM LONDON HEATHROW AIRPORT	December	34% more expensive	It costs about £1,300 for flights to Buenos Aires from London Heathrow Airport in December
MOST POPULAR MONTH TO FLY TO BUENOS AIRES FROM LONDON HEATHROW AIRPORT	December	438% more users visited	More momondo users searched in flights to Buenos Aires from London Heathrow Airport in December than any other month

Cheap Buenos Aires flight deals and tips

Summary info about Buenos Aires flight prices, duration and airlines

Best One-Way Price	£355
Best Round-Trip Price	£704
Fastest flight time	21h 30m
Popular in	December

The best one-way flight price to Buenos Aires from United Kingdom in the last 72 hours is £355 (Manchester to Buenos Aires Jorge Newbery).

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The best round-trip flight price to Buenos Aires from United Kingdom in the last 72 hours is £704 (London Heathrow to Buenos Aires Ministro Pistarini).

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The fastest flight to Buenos Aires from United Kingdom takes 21h 30m (London Heathrow to Buenos Aires Jorge Newbery).

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December has the highest demand for flights to Buenos Aires, with a 4% price increase on average.

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Frequently asked questions about flying to Buenos Aires

How far in advance should I book a flight to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from United Kingdom when booking 60 days ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around £927 when searching 60 days out. In the past 72 hours, momondo users found flights from United Kingdom to Buenos Aires for as low as £800.

Is there an alternative airport near Buenos Aires?

Finding an alternative and possibly cheaper destination airport near Buenos Aires is possible. If you are planning a flight to Buenos Aires, consider booking flights to Buenos Aires Jorge Newbery Airport (4 mi from Buenos Aires city centre).

Is there a cheaper alternative to flying into Buenos Aires?

The cheapest airport near Buenos Aires is typically Buenos Aires Jorge Newbery Airport, with an average price of £138/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

Are there flights to Palermo?

Yes, you can get a flight to Buenos Aires Jorge Newbery airport in Buenos Aires (1.1 mi from Palermo).

What’s the closest airport to Hipódromo de Palermo?

At 0.9 mi away, Buenos Aires Jorge Newbery airport in Buenos Aires is the closest to Hipódromo de Palermo.

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

Prices for flights to Buenos Aires are updated daily.

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

As of September 2025, there are 13 operators available to choose from for flights to Buenos Aires.

How old do you have to be to fly to Buenos Aires?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Buenos Aires.

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

The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

Finding the right flight to Buenos Aires is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options 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 to Buenos Aires with flexible booking policies on momondo?

Flights 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 to Buenos Aires?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Buenos Aires.

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

Yes momondo offers price alerts on flights to Buenos Aires. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.