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

Flights via Houston (IAH) offer the lowest average return price of €904.

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

Avianca, United Airlines, and Turkish Airlines are the most popular carriers operating from London to Buenos Aires

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

Flights connecting via Madrid (MAD) have the shortest average one-way travel time: 16h 35m.

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

Madrid (MAD) has the shortest average stopover time for this route: 1h 25m.

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

21 flights are operational weekly from London to Buenos Aires as of June 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

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

The number of flights available between London and Buenos Aires is 3 per day as of June 2026. The most frequent departure time is 21:00, with 100% of daily flights leaving in the evening.

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

Houston (IAH) was the most common stop: 33% of momondo users choosing one-stop flights on this route connected there.

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

Prices for flights from London to Buenos Aires were last updated today.

How old do you have to be to fly from London 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 from London to Buenos Aires.

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

The necessary travel and health documents for your Buenos Aires trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

€543 Cheap Flights from London to Buenos Aires in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from €1,176 to €962. The lowest price recently found on this route was €1,009.

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Find the cheapest flights from London to Buenos Aires

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

08:30 - 06:25

LHR

EZE

25h 55m

1 stop

16:35 - 18:40

EZE

LHR

22h 05m

1 stop

€1,009Lufthansa

Sun, 5 Jul - Tue, 7 Jul

11:30 - 06:25

LHR

EZE

22h 55m

1 stop

16:35 - 22:10

EZE

LHR

25h 35m

1 stop

€1,012Lufthansa

Tue, 25 Aug - Thu, 17 Sep

20:40 - 19:55

LGW

EZE

27h 15m

1 stop

13:00 - 10:50

EZE

LGW

17h 50m

1 stop

€1,018British Airways

Mon, 29 Jun - Sun, 12 Jul

06:30 - 06:25

LHR

EZE

27h 55m

1 stop

13:30 - 16:25

EZE

LHR

22h 55m

2 stops

€1,022Multiple Airlines

Wed, 1 Jul - Wed, 29 Jul

15:25 - 06:45

LGW

EZE

18h 20m

1 stop

13:25 - 09:00

EZE

LGW

16h 35m

1 stop

€1,026Multiple Airlines

Wed, 28 Oct - Tue, 10 Nov

20:00 - 16:05

LHR

EZE

24h 05m

1 stop

12:25 - 08:10

EZE

LHR

15h 45m

1 stop

€1,028British Airways

Sun, 5 Jul - Wed, 29 Jul

15:25 - 10:10

LGW

EZE

21h 45m

1 stop

11:55 - 14:45

EZE

LGW

23h 50m

1 stop

€1,054LEVEL

Wed, 2 Dec - Thu, 10 Dec

18:30 - 02:00

LHR

AEP

34h 30m

2 stops

13:35 - 21:35

AEP

LHR

29h 00m

2 stops

€1,063TAP AIR PORTUGAL

Mon, 16 Nov - Tue, 8 Dec

18:30 - 02:00

LHR

AEP

34h 30m

2 stops

13:35 - 21:35

AEP

LHR

29h 00m

2 stops

€1,064TAP AIR PORTUGAL

Mon, 16 Nov - Tue, 8 Dec

20:10 - 18:00

LGW

EZE

25h 50m

1 stop

10:50 - 15:50

EZE

LGW

25h 00m

1 stop

€1,075LEVEL

Mon, 28 Sep - Tue, 20 Oct

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SWISS flights from London to Buenos Aires

Our best SWISS deals on London to Buenos Aires flight tickets

SWISS

9 Nov

LHR20:05London Heathrow

46h 45m

2 stops

EZE15:50Buenos Aires Ministro Pistarini

25 Nov

EZE14:40Buenos Aires Ministro Pistarini

19h 20m

2 stops

LHR13:00London Heathrow

€1,080

SWISS

10 Nov

LCY19:05London City

23h 45m

2 stops

EZE15:50Buenos Aires Ministro Pistarini

23 Nov

EZE02:20Buenos Aires Ministro Pistarini

31h 30m

2 stops

LCY12:50London City

€1,099

SWISS

9 Nov

LHR20:05London Heathrow

42h 55m

2 stops

AEP12:00Buenos Aires Jorge Newbery

26 Nov

AEP14:55Buenos Aires Jorge Newbery

24h 45m

3 stops

LHR18:40London Heathrow

€1,109

KLM flights from London to Buenos Aires

Our best KLM deals on London to Buenos Aires flight tickets

KLM

18 Jun

LCY09:20London City

24h 30m

1 stop

EZE05:50Buenos Aires Ministro Pistarini

25 Jun

EZE15:05Buenos Aires Ministro Pistarini

22h 15m

1 stop

LCY17:20London City

€1,064

KLM

23 Jun

LHR20:55London Heathrow

28h 55m

2 stops

EZE21:50Buenos Aires Ministro Pistarini

29 Jun

EZE13:15Buenos Aires Ministro Pistarini

24h 20m

2 stops

LHR17:35London Heathrow

€1,072

KLM

24 Jun

LHR06:30London Heathrow

19h 20m

2 stops

EZE21:50Buenos Aires Ministro Pistarini

1 Jul

EZE15:05Buenos Aires Ministro Pistarini

15h 40m

1 stop

LHR10:45London Heathrow

€1,072

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 5/7

08:30-06:25

1 stop25h 55m

Buenos Aires Ministro Pistarini

Tue 7/7

16:35-18:40

1 stop22h 05m

€1,009

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Tue 25/8

11:30-06:25

1 stop22h 55m

Buenos Aires Ministro Pistarini

Thu 17/9

16:35-22:10

1 stop25h 35m

€1,012

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Mon 29/6

20:40-19:55

1 stop27h 15m

Buenos Aires Ministro Pistarini

Sun 12/7

13:00-10:50

1 stop17h 50m

€1,018

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 1/7

06:30-06:25

1 stop27h 55m

Buenos Aires Ministro Pistarini

Wed 29/7

13:30-16:25

2 stops22h 55m

€1,022

Fastest return journey

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Wed 28/10

15:25-06:45

1 stop18h 20m

Buenos Aires Ministro Pistarini

Tue 10/11

13:25-09:00

1 stop16h 35m

€1,026

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 5/7

20:00-16:05

1 stop24h 05m

Buenos Aires Ministro Pistarini

Wed 29/7

12:25-08:10

1 stop15h 45m

€1,028

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Wed 2/12

15:25-10:10

1 stop21h 45m

Buenos Aires Ministro Pistarini

Thu 10/12

11:55-14:45

1 stop23h 50m

€1,054

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 16/11

18:30-02:00

2 stops34h 30m

Buenos Aires Jorge Newbery

Tue 8/12

13:35-21:35

2 stops29h 00m

€1,063

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 16/11

18:30-02:00

2 stops34h 30m

Buenos Aires Jorge Newbery

Tue 8/12

13:35-21:35

2 stops29h 00m

€1,064

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Mon 28/9

20:10-18:00

1 stop25h 50m

Buenos Aires Ministro Pistarini

Tue 20/10

10:50-15:50

1 stop25h 00m

€1,075

Flights are sorted by cheapest return flights first.

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How to get the cheapest flight ticket from London 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 and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

In general, July is the cheapest month to fly from London to Buenos Aires. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €136. If you aren’t able to travel to Buenos Aires during the month of July, then flying in April is also cheap. Prices for this month can be found on momondo for an average of €453.

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

You are more likely to see cheaper flights to Buenos Aires from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around €1,205 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 for as low as €891 on momondo.

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

As of June 2026, prices for London to Buenos Aires flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from London to Buenos Aires

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

Estimated return price

Cheap London to Buenos Aires (LON to BUE) flight deals and tips

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

Fastest flight time	16h 25m
Direct flights	Tue, Thu, Fri and Sat
Airports in Buenos Aires	2 airports

The fastest flight from London to Buenos Aires takes 16h 25m

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

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

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Frequently asked questions about flying from London to Buenos Aires

How far is London to Buenos Aires by plane?
London and Buenos Aires are 11120.2 km apart from one another. By plane, this route typically takes 16h 25m.
When did momondo last update prices for flights from London to Buenos Aires?
Prices for flights from London to Buenos Aires were last updated today.
How old do you have to be to fly from London 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 from London to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The necessary travel and health documents for your Buenos Aires trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Buenos Aires?
Based on momondo bookings for flights between London and Buenos Aires, the leading plane model is Boeing 777, making up 78.72% of the total bookings. Other popular models include Airbus A350-1000 with 21.28%.

Why use momondo?

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

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

Yes. All flights to Buenos Aires from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Buenos Aires from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Buenos Aires from London. 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.

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Cheap flights from London to Buenos Aires from €543

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Buenos Aires departing on 4/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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SWISS flights from London to Buenos Aires

Our best SWISS deals on London to Buenos Aires flight tickets

KLM flights from London to Buenos Aires

Our best KLM deals on London to Buenos Aires flight tickets

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

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

What is the cheapest month to fly to Buenos Aires?

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

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

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

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

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

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

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

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

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

When to book flights from London to Buenos Aires

Cheap London to Buenos Aires (LON to BUE) flight deals and tips

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

Fastest flight time

Direct flights

Airports in Buenos Aires

Frequently asked questions about flying from London 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

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