What day of the week experiences the fewest flight delays on this route?

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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

United Airlines, LEVEL, and KLM 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.

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 January 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

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

Flights via Houston (IAH) offer the lowest average return price of €877.

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.

How often are flights from London to Buenos Aires delayed?

Historically, on average around 0% of flights between London and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

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 January 2026. The most frequent departure time is 22:00, with 100% of daily flights leaving in the evening.

What is the most punctual flight time for London to Buenos Aires flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

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.

€527 Cheap Flights from London to Buenos Aires in 2026

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14:05 - 22:25

LGW

EZE

36h 20m

2 stops

23:55 - 13:10

EZE

LGW

33h 15m

2 stops

€911Turkish Airlines

Mon, 4 May - Mon, 25 May

18:25 - 22:25

LHR

EZE

32h 00m

2 stops

23:55 - 16:00

EZE

LHR

36h 05m

2 stops

€912Turkish Airlines

Fri, 12 Jun - Tue, 23 Jun

20:05 - 10:50

LHR

EZE

42h 45m

2 stops

13:30 - 16:25

EZE

LHR

22h 55m

2 stops

€918SWISS

Mon, 6 Apr - Wed, 20 May

10:50 - 22:25

LGW

EZE

39h 35m

2 stops

23:55 - 16:40

EZE

LGW

36h 45m

2 stops

€919Turkish Airlines

Wed, 13 May - Sun, 24 May

22:35 - 22:25

LHR

EZE

51h 50m

2 stops

23:55 - 15:10

EZE

LHR

35h 15m

2 stops

€919Turkish Airlines

Mon, 29 Jun - Tue, 28 Jul

15:30 - 06:25

LHR

EZE

18h 55m

1 stop

16:35 - 12:40

EZE

LHR

16h 05m

1 stop

€927Lufthansa

Wed, 13 May - Tue, 26 May

20:05 - 10:50

LHR

EZE

42h 45m

2 stops

13:30 - 16:25

EZE

LHR

22h 55m

2 stops

€936SWISS

Mon, 4 May - Wed, 27 May

11:30 - 06:25

LHR

EZE

22h 55m

1 stop

13:30 - 16:25

EZE

LHR

22h 55m

2 stops

€938Multiple Airlines

Fri, 5 Jun - Wed, 24 Jun

19:40 - 08:40

LGW

EZE

16h 00m

1 stop

19:30 - 19:00

EZE

LGW

20h 30m

1 stop

€942Iberia

Sun, 8 Mar - Tue, 24 Mar

11:10 - 17:20

LHR

AEP

34h 10m

2 stops

09:00 - 22:25

AEP

LHR

33h 25m

2 stops

€1,027Multiple Airlines

Thu, 7 May - Sun, 17 May

SWISS flights from London to Buenos Aires

Our best SWISS deals on London to Buenos Aires flight tickets

SWISS

6 Apr

LHR20:05London Heathrow

42h 45m

2 stops

EZE10:50Buenos Aires Ministro Pistarini

20 May

EZE13:30Buenos Aires Ministro Pistarini

22h 55m

2 stops

LHR16:25London Heathrow

€918

SWISS

4 May

LHR20:05London Heathrow

42h 45m

2 stops

EZE10:50Buenos Aires Ministro Pistarini

27 May

EZE13:30Buenos Aires Ministro Pistarini

22h 55m

2 stops

LHR16:25London Heathrow

€936

SWISS

6 Apr

LHR20:05London Heathrow

42h 45m

2 stops

EZE10:50Buenos Aires Ministro Pistarini

20 May

EZE13:30Buenos Aires Ministro Pistarini

23h 05m

3 stops

LHR16:35London Heathrow

€942

British Airways flights from London to Buenos Aires

Our best British Airways deals on London to Buenos Aires flight tickets

British Airways

2 Jun

LGW20:40London Gatwick

23h 45m

1 stop

EZE16:25Buenos Aires Ministro Pistarini

28 Jun

EZE21:40Buenos Aires Ministro Pistarini

18h 20m

1 stop

LGW20:00London Gatwick

€975

British Airways

7 Mar

LHR19:40London Heathrow

16h 00m

1 stop

EZE08:40Buenos Aires Ministro Pistarini

11 Aug

EZE21:40Buenos Aires Ministro Pistarini

16h 35m

1 stop

LHR18:15London Heathrow

€976

British Airways

29 Jun

LHR19:10London Heathrow

24h 55m

1 stop

EZE16:05Buenos Aires Ministro Pistarini

21 Jul

EZE13:00Buenos Aires Ministro Pistarini

15h 25m

1 stop

LHR08:25London Heathrow

€978

Fly from

Fly to

Route

Depart

Return

Price

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Mon 4/5

14:05-22:25

2 stops36h 20m

Buenos Aires Ministro Pistarini

Mon 25/5

23:55-13:10

2 stops33h 15m

€911

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Fri 12/6

18:25-22:25

2 stops32h 00m

Buenos Aires Ministro Pistarini

Tue 23/6

23:55-16:00

2 stops36h 05m

€912

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 6/4

20:05-10:50

2 stops42h 45m

Buenos Aires Ministro Pistarini

Wed 20/5

13:30-16:25

2 stops22h 55m

€918

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Wed 13/5

10:50-22:25

2 stops39h 35m

Buenos Aires Ministro Pistarini

Sun 24/5

23:55-16:40

2 stops36h 45m

€919

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 29/6

22:35-22:25

2 stops51h 50m

Buenos Aires Ministro Pistarini

Tue 28/7

23:55-15:10

2 stops35h 15m

€919

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 13/5

15:30-06:25

1 stop18h 55m

Buenos Aires Ministro Pistarini

Tue 26/5

16:35-12:40

1 stop16h 05m

€927

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 4/5

20:05-10:50

2 stops42h 45m

Buenos Aires Ministro Pistarini

Wed 27/5

13:30-16:25

2 stops22h 55m

€936

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Fri 5/6

11:30-06:25

1 stop22h 55m

Buenos Aires Ministro Pistarini

Wed 24/6

13:30-16:25

2 stops22h 55m

€938

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Sun 8/3

19:40-08:40

1 stop16h 00m

Buenos Aires Ministro Pistarini

Tue 24/3

19:30-19:00

1 stop20h 30m

€942

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Thu 7/5

11:10-17:20

2 stops34h 10m

Buenos Aires Jorge Newbery

Sun 17/5

09:00-22:25

2 stops33h 25m

€1,027

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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

Delays

Stopovers

Other information

What is the cheapest month to fly to Buenos Aires?

In general, September 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 €974. If you aren’t able to travel to Buenos Aires during the month of September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of €995.

How far in advance should I book a flight 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 €1,158 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 €966 on momondo.

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

As of January 2026, prices for London to Buenos Aires flights are approximately 22% 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	Mon
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 Monday. 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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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 72.97% of the total bookings. Other popular models include Airbus A350-1000 with 27.03%.

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.

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.

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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 London to Buenos Aires from €527

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 2/3. 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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See travel insights to Buenos Aires from

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

What is the cheapest month to fly to Buenos Aires?

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

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

As of January 2026, prices for London to Buenos Aires flights are approximately 22% more expensive when compared to flights at the same time last year.

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

United Airlines, LEVEL, and KLM are the most popular carriers operating from London to Buenos Aires

How often are flights from London to Buenos Aires delayed?

Historically, on average around 0% of flights between London and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

What is the most punctual flight time for London to Buenos Aires flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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.

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

Flights via Houston (IAH) offer the lowest average return price of €877.

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 day?

The number of flights available between London and Buenos Aires is 3 per day as of January 2026. The most frequent departure time is 22:00, with 100% of daily flights leaving in the evening.

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 January 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

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

How far is London to Buenos Aires by plane?

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

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

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

What is the most popular plane model from London to Buenos Aires?

Why use momondo?

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

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

How can momondo help me find flights 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?

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