Which airport is the most popular for stopovers for flights between London Heathrow Airport and Buenos Aires?

Frankfurt am Main (FRA) was the most common stop: 83% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London Heathrow Airport to Buenos Aires?

Flights via Madrid (MAD) offer the lowest average return price of $2,038.

Which stopover airport has the shortest connection time from London Heathrow Airport to Buenos Aires?

Madrid (MAD) has the shortest average stopover time for this route: 0h 52m.

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

United Airlines is the most popular carrier operating from London Heathrow to Buenos Aires

How many flights depart from London Heathrow Airport to Buenos Aires on average per week?

As of September 2026, there are 21 flights per week flying from London Heathrow Airport to Buenos Aires. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

Which stopover airport has the shortest travel time from London Heathrow Airport to Buenos Aires?

Flights connecting via Madrid (MAD) have the shortest average one-way travel time: 16h 00m.

How many flights depart from London Heathrow Airport to Buenos Aires on average per day?

As of September 2026, there are 3 flights per day flying from London Heathrow Airport to Buenos Aires. The most common time of day flights depart is 21:00, with 100% of flights taking off in the evening.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow 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 licence, 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.

$1,031 Cheap Flights from London Heathrow Airport to Buenos Aires in 2026/27

Find the cheapest flights from London Heathrow Airport to Buenos Aires

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One-way

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Enter your travel dates to find the best prices.

22:05 - 05:40LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

35h 35m1 stop Bogotá El Dorado

07:10 - 15:35EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 25m1 stop Bogotá El Dorado

$1,633Avianca

Tue, 13 Oct - Tue, 20 Oct

22:05 - 05:40LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

35h 35m1 stop Bogotá El Dorado

07:10 - 15:35EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 25m1 stop Bogotá El Dorado

$1,652Avianca

Tue, 6 Oct - Thu, 15 Oct

18:00 - 15:05LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

24h 05m2 stops Toronto Pearson Intl Sao Paulo Guarulhos Intl

16:45 - 06:30EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

34h 45m2 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl

$1,659Air Canada

Thu, 26 Nov - Mon, 8 Feb

19:40 - 17:25LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

24h 45m1 stop Madrid Barajas

14:20 - 08:25EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

15h 05m1 stop Madrid Barajas

$1,687Multiple Airlines

Thu, 26 Nov - Mon, 8 Feb

07:30 - 07:25LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

26h 55m2 stops Madrid Barajas Miami

21:10 - 20:00EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

19h 50m1 stop New York John F Kennedy Intl

$1,689American Airlines

Mon, 14 Dec - Thu, 21 Jan

20:50 - 17:30LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

23h 40m1 stop Barcelona-El Prat

13:00 - 09:10EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

17h 10m1 stop Barcelona-El Prat

$1,702LEVEL

Thu, 18 Feb - Wed, 3 Mar

16:30 - 19:55LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

30h 25m1 stop Rome Fiumicino

13:55 - 15:40EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

22h 45m1 stop Rome Fiumicino

$1,705ITA Airways

Sat, 21 Nov - Tue, 8 Dec

10:30 - 08:50LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 20m1 stop Rome Fiumicino

13:55 - 15:40EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

22h 45m1 stop Rome Fiumicino

$1,709ITA Airways

Wed, 25 Nov - Sun, 29 Nov

10:30 - 08:50LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 20m1 stop Rome Fiumicino

13:55 - 15:40EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

22h 45m1 stop Rome Fiumicino

$1,710ITA Airways

Wed, 25 Nov - Sun, 29 Nov

12:55 - 10:00LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

24h 05m2 stops New York John F Kennedy Intl Miami

21:10 - 20:00EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

19h 50m1 stop New York John F Kennedy Intl

$1,716American Airlines

Tue, 24 Nov - Mon, 8 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

22:05 - 05:40LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

35h 35m1 stop Bogotá El Dorado

07:10 - 15:35EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 25m1 stop Bogotá El Dorado

$1,656Avianca

Wed, 16 Sep - Wed, 30 Sep

20:55 - 18:50LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 55m2 stops Amsterdam Schiphol Paris Charles de Gaulle

22:40 - 18:20EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

16h 40m1 stop Paris Charles de Gaulle

$1,670Multiple Airlines

Wed, 16 Sep - Wed, 16 Dec

20:55 - 18:50LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 55m2 stops Amsterdam Schiphol Paris Charles de Gaulle

22:40 - 18:20EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

16h 40m1 stop Paris Charles de Gaulle

$1,675Multiple Airlines

Wed, 16 Sep - Wed, 16 Dec

20:55 - 18:50LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 55m2 stops Amsterdam Schiphol Paris Charles de Gaulle

22:40 - 18:20EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

16h 40m1 stop Paris Charles de Gaulle

$1,682Multiple Airlines

Wed, 16 Sep - Wed, 16 Dec

20:55 - 18:50LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 55m2 stops Amsterdam Schiphol Paris Charles de Gaulle

23:55 - 07:40EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

27h 45m2 stops Paris Charles de Gaulle Amsterdam Schiphol

$1,684KLM

Wed, 16 Sep - Fri, 25 Sep

10:45 - 09:45LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

27h 00m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

20:10 - 07:10EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

31h 00m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

$1,776Delta

Wed, 16 Sep - Fri, 2 Oct

12:25 - 09:45LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 20m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

20:10 - 06:45EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

30h 35m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

$1,794Delta

Mon, 21 Sep - Sun, 4 Oct

12:25 - 09:45LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 20m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

20:10 - 07:10EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

31h 00m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

$1,796Delta

Mon, 21 Sep - Sun, 4 Oct

12:25 - 09:45LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 20m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

20:10 - 06:45EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

30h 35m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

$1,797Delta

Mon, 21 Sep - Sun, 4 Oct

12:25 - 09:45LHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 20m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

20:10 - 06:45EZE Buenos Aires Ministro Pistarini-LHR London Heathrow

30h 35m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

$1,799Delta

Mon, 21 Sep - Sun, 4 Oct

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Air Canada flights from London Heathrow Airport to Buenos Aires

Our best Air Canada deals on London Heathrow Airport to Buenos Aires flight tickets

Air Canada

26 Nov

LHR18:00London Heathrow

24h 05m

2 stops

EZE15:05Buenos Aires Ministro Pistarini

8 Feb

EZE16:45Buenos Aires Ministro Pistarini

34h 45m

2 stops

LHR06:30London Heathrow

$1,659

Air Canada

29 Nov

LHR18:00London Heathrow

24h 05m

2 stops

EZE15:05Buenos Aires Ministro Pistarini

7 Feb

EZE16:45Buenos Aires Ministro Pistarini

39h 35m

2 stops

LHR11:20London Heathrow

$1,779

Air Canada

24 Nov

LHR18:00London Heathrow

24h 05m

2 stops

EZE15:05Buenos Aires Ministro Pistarini

5 Feb

EZE16:45Buenos Aires Ministro Pistarini

36h 45m

2 stops

LHR08:30London Heathrow

$1,807

American Airlines flights from London Heathrow Airport to Buenos Aires

Our best American Airlines deals on London Heathrow Airport to Buenos Aires flight tickets

American Airlines

14 Dec

LHR07:30London Heathrow

26h 55m

2 stops

EZE07:25Buenos Aires Ministro Pistarini

19 Jan

EZE21:10Buenos Aires Ministro Pistarini

22h 00m

1 stop

LHR22:10London Heathrow

$1,689

American Airlines

24 Nov

LHR12:55London Heathrow

24h 05m

2 stops

EZE10:00Buenos Aires Ministro Pistarini

9 Feb

EZE21:10Buenos Aires Ministro Pistarini

19h 50m

1 stop

LHR20:00London Heathrow

$1,716

American Airlines

14 Dec

LHR07:30London Heathrow

26h 55m

2 stops

EZE07:25Buenos Aires Ministro Pistarini

20 Jan

EZE23:35Buenos Aires Ministro Pistarini

27h 40m

2 stops

LHR06:15London Heathrow

$1,803

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Buenos Aires that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Tue 13/10

22:05-05:40

1 stop35h 35m

Buenos Aires Ministro Pistarini

Tue 20/10

07:10-15:35

1 stop28h 25m

$1,633

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Tue 6/10

22:05-05:40

1 stop35h 35m

Buenos Aires Ministro Pistarini

Thu 15/10

07:10-15:35

1 stop28h 25m

$1,652

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 26/11

18:00-15:05

2 stops24h 05m

Buenos Aires Ministro Pistarini

Mon 8/2

16:45-06:30

2 stops34h 45m

$1,659

Fastest return journey

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 26/11

19:40-17:25

1 stop24h 45m

Buenos Aires Ministro Pistarini

Mon 8/2

14:20-08:25

1 stop15h 05m

$1,687

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 14/12

07:30-07:25

2 stops26h 55m

Buenos Aires Ministro Pistarini

Thu 21/1

21:10-20:00

1 stop19h 50m

$1,689

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 18/2

20:50-17:30

1 stop23h 40m

Buenos Aires Ministro Pistarini

Wed 3/3

13:00-09:10

1 stop17h 10m

$1,702

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sat 21/11

16:30-19:55

1 stop30h 25m

Buenos Aires Ministro Pistarini

Tue 8/12

13:55-15:40

1 stop22h 45m

$1,705

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Wed 25/11

10:30-08:50

1 stop25h 20m

Buenos Aires Ministro Pistarini

Sun 29/11

13:55-15:40

1 stop22h 45m

$1,709

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Wed 25/11

10:30-08:50

1 stop25h 20m

Buenos Aires Ministro Pistarini

Sun 29/11

13:55-15:40

1 stop22h 45m

$1,710

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Tue 24/11

12:55-10:00

2 stops24h 05m

Buenos Aires Ministro Pistarini

Mon 8/2

21:10-20:00

1 stop19h 50m

$1,716

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport 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

Stopovers

Other information

What is the typical price of a round-trip flight between London Heathrow Airport and Buenos Aires?

Prices are currently typical for flights on this route.

Typical prices usually range from $1,465 to $2,118.
The lowest price recently found on this route was $1,633.

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from London Heathrow Airport is in May. Flight prices, which tend to average around $1,601, are often lower during this time because this is during the off-season. If you don’t want to visit Buenos Aires in May, then you should wait until November to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $1,719.

How far in advance should I book a flight from London Heathrow Airport to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,939 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 London Heathrow Airport for as low as $1,594 on momondo.

How have London Heathrow Airport to Buenos Aires flight prices changed over time?

As of September 2026, prices for London Heathrow Airport to Buenos Aires flights are approximately 34% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Buenos Aires

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

Estimated return price

Cheap London Heathrow Airport to Buenos Aires (LHR to BUE) flight deals and tips

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

Best price found	$1,031
Fastest flight time	25h 20m
Direct flights	Tue, Fri and Sun
Airports in Buenos Aires	2 airports

The best one-way flight to Buenos Aires from London Heathrow Airport in the past 72 hours is $1,031. The best return flight deal from London Heathrow Airport to Buenos Aires found on momondo in the last 72 hours is $1,633.

The fastest flight from London Heathrow Airport to Buenos Aires takes 25h 20m

Direct flights go from London Heathrow Airport to Buenos Aires on Tuesday, Friday and Sunday. There are no airlines offering direct flights..

There are 2 airports in Buenos Aires. From London Heathrow Airport there are direct flights to Buenos Aires Ministro Pistarini (EZE).

Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Buenos Aires

How far is London Heathrow to Buenos Aires by plane?
London Heathrow and Buenos Aires are 11101.7 km apart from one another. Typically, this will take 25h 20m by plane in normal conditions.
When did momondo last update prices for flights from London Heathrow Airport to Buenos Aires?
Prices for flights from London Heathrow Airport to Buenos Aires are updated daily.
How old do you have to be to fly from London Heathrow Airport to Buenos Aires?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow 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 licence, 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 plane model from London Heathrow Airport to Buenos Aires?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Buenos Aires is Boeing 777, representing 100.00% of all bookings.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Buenos Aires for you.

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

Yes. momondo enables you to select and highlight flights to Buenos Aires from London with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Buenos Aires.

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

Of course. momondo tracks the price of London to Buenos Aires flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Fly into one of these airports located in Buenos Aires

Buenos Aires Jorge Newbery Airport

Buenos Aires Ministro Pistarini Airport

Cheap flights from London Heathrow Airport to Buenos Aires from $1,031

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Air Canada flights from London Heathrow Airport to Buenos Aires

Our best Air Canada deals on London Heathrow Airport to Buenos Aires flight tickets

American Airlines flights from London Heathrow Airport to Buenos Aires

Our best American Airlines deals on London Heathrow Airport to Buenos Aires flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Buenos Aires that are best for you.

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from London Heathrow Airport to Buenos Aires

What is the typical price of a round-trip flight between London Heathrow Airport and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

How far in advance should I book a flight from London Heathrow Airport to Buenos Aires?

How have London Heathrow Airport to Buenos Aires flight prices changed over time?

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

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Buenos Aires?

Which stopover airport offers the lowest fares from London Heathrow Airport to Buenos Aires?

Which stopover airport has the shortest travel time from London Heathrow Airport to Buenos Aires?

Which stopover airport has the shortest connection time from London Heathrow Airport to Buenos Aires?

How many flights depart from London Heathrow Airport to Buenos Aires on average per day?

How many flights depart from London Heathrow Airport to Buenos Aires on average per week?

When to book flights from London Heathrow Airport to Buenos Aires

Cheap London Heathrow Airport to Buenos Aires (LHR to BUE) flight deals and tips

Best price found

Fastest flight time

Direct flights

Airports in Buenos Aires

Frequently asked questions about flying from London Heathrow Airport to Buenos Aires

Why use momondo?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organise 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

Cabin classes currently available on flights to Buenos Aires

List of cabin classes available on flights landing in Buenos Aires. Availability may vary depending on flight origin and airline.

Popular Cities in Argentina

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from London Heathrow Airport

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year