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.

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

Flights via Houston (IAH) offer the lowest average return price of €911.

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 August 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 August 2026. The most frequent departure time is 21:00, with 100% of daily flights leaving in the evening.

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.

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

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

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.

€520 Cheap Flights from London to Buenos Aires in 2026

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.

17:10 - 12:25

LGW

EZE

23h 15m

2 stops

11:50 - 12:40

EZE

LGW

20h 50m

1 stop

€1,001Multiple Airlines

Mon, 21 Sep - Tue, 6 Oct

20:00 - 16:05

LHR

EZE

24h 05m

1 stop

12:25 - 08:10

EZE

LHR

15h 45m

1 stop

€1,005Multiple Airlines

Mon, 21 Sep - Tue, 6 Oct

21:40 - 15:50

LHR

EZE

21h 10m

1 stop

16:55 - 14:35

EZE

LHR

18h 40m

1 stop

€1,021Avianca

Sun, 25 Oct - Sat, 14 Nov

22:05 - 05:40

LHR

AEP

35h 35m

1 stop

07:00 - 14:35

AEP

LHR

28h 35m

1 stop

€1,022Avianca

Sun, 4 Oct - Sun, 25 Oct

22:05 - 15:40

LHR

EZE

21h 35m

1 stop

16:55 - 14:35

EZE

LHR

18h 40m

1 stop

€1,022Avianca

Thu, 8 Oct - Tue, 27 Oct

20:00 - 16:05

LHR

EZE

24h 05m

1 stop

12:25 - 08:10

EZE

LHR

15h 45m

1 stop

€1,031British Airways

Mon, 21 Sep - Tue, 6 Oct

18:45 - 17:25

LHR

EZE

25h 40m

1 stop

13:35 - 08:20

EZE

LHR

15h 45m

1 stop

€1,032British Airways

Mon, 16 Nov - Wed, 25 Nov

20:00 - 16:05

LHR

EZE

24h 05m

1 stop

12:25 - 08:10

EZE

LHR

15h 45m

1 stop

€1,045British Airways

Fri, 25 Sep - Tue, 6 Oct

18:45 - 17:25

LHR

EZE

25h 40m

1 stop

13:35 - 08:20

EZE

LHR

15h 45m

1 stop

€1,046British Airways

Fri, 13 Nov - Mon, 23 Nov

13:30 - 06:25

LHR

EZE

20h 55m

1 stop

16:35 - 16:40

EZE

LHR

20h 05m

1 stop

€1,047Lufthansa

Fri, 4 Sep - Wed, 7 Oct

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Avianca flights from London to Buenos Aires

Our best Avianca deals on London to Buenos Aires flight tickets

Avianca

25 Oct

LHR21:40London Heathrow

21h 10m

1 stop

EZE15:50Buenos Aires Ministro Pistarini

9 Nov

EZE01:40Buenos Aires Ministro Pistarini

33h 55m

1 stop

LHR14:35London Heathrow

€1,021

Avianca

8 Oct

LHR22:05London Heathrow

21h 35m

1 stop

EZE15:40Buenos Aires Ministro Pistarini

26 Oct

EZE16:55Buenos Aires Ministro Pistarini

18h 40m

1 stop

LHR14:35London Heathrow

€1,022

Avianca

12 Aug

LHR22:05London Heathrow

35h 35m

1 stop

AEP05:40Buenos Aires Jorge Newbery

16 Aug

AEP07:00Buenos Aires Jorge Newbery

28h 35m

1 stop

LHR15:35London Heathrow

€1,161

TAP AIR PORTUGAL flights from London to Buenos Aires

Our best TAP AIR PORTUGAL deals on London to Buenos Aires flight tickets

TAP AIR PORTUGAL

28 Nov

LGW16:35London Gatwick

36h 00m

2 stops

EZE01:35Buenos Aires Ministro Pistarini

7 Dec

EZE12:45Buenos Aires Ministro Pistarini

28h 50m

2 stops

LGW20:35London Gatwick

€1,055

TAP AIR PORTUGAL

10 Nov

LGW16:35London Gatwick

36h 20m

2 stops

EZE01:55Buenos Aires Ministro Pistarini

25 Nov

EZE04:15Buenos Aires Ministro Pistarini

26h 35m

2 stops

LGW09:50London Gatwick

€1,060

TAP AIR PORTUGAL

10 Nov

LHR18:30London Heathrow

34h 25m

2 stops

EZE01:55Buenos Aires Ministro Pistarini

25 Nov

EZE04:15Buenos Aires Ministro Pistarini

29h 25m

2 stops

LHR12:40London Heathrow

€1,061

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Mon 21/9

17:10-12:25

2 stops23h 15m

Buenos Aires Ministro Pistarini

Tue 6/10

11:50-12:40

1 stop20h 50m

€1,001

Fastest return journey

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 21/9

20:00-16:05

1 stop24h 05m

Buenos Aires Ministro Pistarini

Tue 6/10

12:25-08:10

1 stop15h 45m

€1,005

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 25/10

21:40-15:50

1 stop21h 10m

Buenos Aires Ministro Pistarini

Sat 14/11

16:55-14:35

1 stop18h 40m

€1,021

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sun 4/10

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Sun 25/10

07:00-14:35

1 stop28h 35m

€1,022

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Thu 8/10

22:05-15:40

1 stop21h 35m

Buenos Aires Ministro Pistarini

Tue 27/10

16:55-14:35

1 stop18h 40m

€1,022

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 21/9

20:00-16:05

1 stop24h 05m

Buenos Aires Ministro Pistarini

Tue 6/10

12:25-08:10

1 stop15h 45m

€1,031

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 16/11

18:45-17:25

1 stop25h 40m

Buenos Aires Ministro Pistarini

Wed 25/11

13:35-08:20

1 stop15h 45m

€1,032

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Fri 25/9

20:00-16:05

1 stop24h 05m

Buenos Aires Ministro Pistarini

Tue 6/10

12:25-08:10

1 stop15h 45m

€1,045

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Fri 13/11

18:45-17:25

1 stop25h 40m

Buenos Aires Ministro Pistarini

Mon 23/11

13:35-08:20

1 stop15h 45m

€1,046

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Fri 4/9

13:30-06:25

1 stop20h 55m

Buenos Aires Ministro Pistarini

Wed 7/10

16:35-16:40

1 stop20h 05m

€1,047

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 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?

Prices are currently low for flights on this route.

Typical prices usually range from €1,094 to €1,444.
The lowest price recently found on this route was €1,001.

What is the cheapest month to fly to Buenos Aires?

In general, May 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 €1,016. If you aren’t able to travel to Buenos Aires during the month of May, then flying in September is also cheap. Prices for this month can be found on momondo for an average of €1,046.

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 €1,198 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 €934 on momondo.

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

As of August 2026, prices for London to Buenos Aires flights are approximately 20% cheaper 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	17h 00m
Direct flights	Tue, Fri and Sun
Airports in Buenos Aires	2 airports

The fastest flight from London to Buenos Aires takes 17h 00m

Direct flights go from London to Buenos Aires on Tuesday, Friday and Sunday. 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 17h 00m.
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 79.59% of the total bookings. Other popular models include Airbus A350-1000 with 20.41%.

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 €520

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 9/11. 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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Avianca flights from London to Buenos Aires

Our best Avianca deals on London to Buenos Aires flight tickets

TAP AIR PORTUGAL flights from London to Buenos Aires

Our best TAP AIR PORTUGAL 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

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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