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Cheap flights from Buenos Aires to London from £452

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buenos Aires to London departing on 15/10. 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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Cheap return flights

LATAM Airlines Logo
11:45 - 15:05AEP-LHR
23h 20m1 stop
LATAM Airlines Logo
21:20 - 14:00LHR-AEP
20h 40m1 stop
£923LATAM Airlines
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Mon, 13 Oct - Sun, 19 Oct
Logo
13:00 - 08:50EZE-LGW
16h 50m1 stop
Logo
17:25 - 15:50LGW-EZE
25h 25m2 stops
£924
Find Deal
Fri, 7 Nov - Mon, 17 Nov
Air Canada Logo
13:40 - 06:30AEP-LHR
37h 50m2 stops
Air Canada Logo
13:25 - 17:20LHR-AEP
30h 55m2 stops
£925Air Canada
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Tue, 4 Nov - Thu, 13 Nov
Air Canada Logo
16:35 - 06:30EZE-LHR
33h 55m2 stops
Air Canada Logo
10:00 - 06:20LHR-EZE
23h 20m1 stop
£928Air Canada
Find Deal
Mon, 13 Oct - Sun, 26 Oct
Iberia Logo
19:45 - 15:45EZE-LGW
17h 00m1 stop
Iberia Logo
19:40 - 17:55LGW-EZE
25h 15m1 stop
£935Iberia
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Sun, 9 Nov - Mon, 9 Feb
ITA Airways Logo
22:00 - 16:10EZE-LCY
39h 10m1 stop
ITA Airways Logo
16:45 - 19:50LCY-EZE
30h 05m1 stop
£938ITA Airways
Find Deal
Fri, 7 Nov - Mon, 17 Nov
Air Europa Logo
13:15 - 09:00EZE-LGW
16h 45m1 stop
Air Europa Logo
17:25 - 08:50LGW-EZE
18h 25m1 stop
£940Air Europa
Find Deal
Sun, 9 Nov - Thu, 4 Dec
Air Europa Logo
13:15 - 16:25EZE-LGW
24h 10m1 stop
Air Europa Logo
10:00 - 08:50LGW-EZE
25h 50m1 stop
£942Air Europa
Find Deal
Tue, 18 Nov - Sun, 30 Nov
ITA Airways Logo
13:50 - 10:55EZE-LCY
18h 05m1 stop
ITA Airways Logo
19:05 - 08:45LCY-EZE
40h 40m2 stops
£943ITA Airways
Find Deal
Tue, 18 Nov - Sun, 30 Nov
Iberia Logo
13:00 - 09:10EZE-LGW
17h 10m1 stop
Iberia Logo
20:50 - 11:10LGW-EZE
17h 20m1 stop
£998Iberia
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Mon, 10 Nov - Thu, 27 Nov

Avianca flights from Buenos Aires to London

Our best Avianca deals on Buenos Aires to London flight tickets
Avianca
18 Oct
EZE01:40Buenos Aires Ministro Pistarini
33h 55m
1 stop
LHR15:35London Heathrow
5 Nov
LHR21:40London Heathrow
21h 10m
1 stop
EZE15:50Buenos Aires Ministro Pistarini
£983
Find similar
Avianca
16 Oct
EZE16:45Buenos Aires Ministro Pistarini
18h 50m
1 stop
LHR15:35London Heathrow
29 Oct
LHR21:40London Heathrow
21h 10m
1 stop
EZE15:50Buenos Aires Ministro Pistarini
£984
Find similar
Avianca
27 Dec
EZE16:55Buenos Aires Ministro Pistarini
18h 40m
1 stop
LHR14:35London Heathrow
7 Feb
LHR21:40London Heathrow
21h 10m
1 stop
EZE15:50Buenos Aires Ministro Pistarini
£985
Find similar

LATAM Airlines flights from Buenos Aires to London

Our best LATAM Airlines deals on Buenos Aires to London flight tickets
LATAM Airlines
13 Oct
AEP11:45Buenos Aires Jorge Newbery
23h 20m
1 stop
LHR15:05London Heathrow
19 Oct
LHR21:20London Heathrow
20h 40m
1 stop
AEP14:00Buenos Aires Jorge Newbery
£923
Find similar
LATAM Airlines
10 Nov
AEP14:55Buenos Aires Jorge Newbery
22h 40m
2 stops
LHR16:35London Heathrow
27 Nov
LHR20:15London Heathrow
16h 25m
1 stop
AEP09:40Buenos Aires Jorge Newbery
£928
Find similar
LATAM Airlines
20 Oct
AEP11:45Buenos Aires Jorge Newbery
23h 20m
1 stop
LHR15:05London Heathrow
10 Nov
LHR20:15London Heathrow
23h 45m
1 stop
AEP17:00Buenos Aires Jorge Newbery
£928
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Buenos Aires to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 22 August 2025.
Use the filters below to find and compare flights from Buenos Aires to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 13/10

11:45-15:05

1 stop23h 20m

London Heathrow

Sun 19/10

21:20-14:00

1 stop20h 40m

£923

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Fri 7/11

13:00-08:50

1 stop16h 50m

London Gatwick

Mon 17/11

17:25-15:50

2 stops25h 25m

£924

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Tue 4/11

13:40-06:30

2 stops37h 50m

London Heathrow

Thu 13/11

13:25-17:20

2 stops30h 55m

£925

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 13/10

16:35-06:30

2 stops33h 55m

London Heathrow

Sun 26/10

10:00-06:20

1 stop23h 20m

£928

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Sun 9/11

19:45-15:45

1 stop17h 00m

London Gatwick

Mon 9/2

19:40-17:55

1 stop25h 15m

£935

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Fri 7/11

22:00-16:10

1 stop39h 10m

London City

Mon 17/11

16:45-19:50

1 stop30h 05m

£938

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Sun 9/11

13:15-09:00

1 stop16h 45m

London Gatwick

Thu 4/12

17:25-08:50

1 stop18h 25m

£940

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Tue 18/11

13:15-16:25

1 stop24h 10m

London Gatwick

Sun 30/11

10:00-08:50

1 stop25h 50m

£942

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Tue 18/11

13:50-10:55

1 stop18h 05m

London City

Sun 30/11

19:05-08:45

2 stops40h 40m

£943

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Mon 10/11

13:00-09:10

1 stop17h 10m

London Gatwick

Thu 27/11

20:50-11:10

1 stop17h 20m

£998

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

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

What is the cheapest month to fly to London?

The cheapest month to fly to London from Buenos Aires is in February. Flight prices, which tend to average around £1,027, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Buenos Aires averaging around £1,031.

What is the cheapest day to depart on your flight to London?

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £1,268. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Buenos Aires to London for around £1,647.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £985. Flights in the morning are often more expensive, with an average ticket price of £1,562.

What is the cheapest Buenos Aires to London flight route?

Fly from Buenos Aires Ministro Pistarini to London Heathrow for the best Buenos Aires - London flight prices

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

You are more likely to see cheaper flights to London from Buenos Aires when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £1,312 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Buenos Aires for as low as £1,157 on momondo.

What cabin class options are available on Buenos Aires to London flights?

There are 2 cabin classes available to choose from on Buenos Aires to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Buenos Aires to London flights?

You could potentially save up to 29% on your flight if you consider stops on a Buenos Aires to London flight.

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

As of August 2025, prices for Buenos Aires to London flights are approximately 8% more expensive when compared to flights at the same time last year.

When to book flights from Buenos Aires to London

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

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

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

Fastest flight time

15h 40m

Direct flights

Every day

Airports in London

1 airport
The fastest flight from Buenos Aires to London takes 15h 40m
Direct flights go from Buenos Aires to London every day.
There is 1 airport near London: London Heathrow (LHR)
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  • How far is Buenos Aires to London by plane?

    Buenos Aires and London are 6909.8 mi apart from one another. A reasonable flight in good conditions will take 16h 10m.

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

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

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

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

    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 Buenos Aires to London.

  • What documentation or ID do you need to fly to London?

    The necessary travel and health documents for your London 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 license 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 Buenos Aires to London?

  • What is the most popular airline from Buenos Aires to London?

Best airlines flying from Buenos Aires to London

Compare and see reviews for airlines that fly from Buenos Aires to London with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom £820Free CancellationRating
7.4
1,469 reviews
Search Air France flights
IberiaPriceFrom £946Free CancellationRating
7.0
2,884 reviews
Search Iberia flights
LATAM AirlinesPriceFrom £1,012Free CancellationRating
7.5
1,844 reviews
Search LATAM Airlines flights
British AirwaysPriceFrom £1,060Free CancellationRating
6.7
7,292 reviews
Search British Airways flights

  • British Airways Flights From Buenos Aires to London

    British Airways flight deals from Buenos Aires to London start from £1,424 round-trip. Over the 4 British Airways flights for this route in a normal week, average airfare is usually £1,903 round-trip - but some users have found much cheaper deals with momondo.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Maidstone
Slough
Gatwick
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Worthing
Dartford
Hounslow
Dover
Chelmsford
Hayes
Folkestone
Bedford

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Buenos Aires.

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

Flights from Buenos Aires to London 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 from Buenos Aires to London?

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 help filter your options to help you make an informed choice when booking flights to London from Buenos Aires.

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

Of course. momondo tracks the price of Buenos Aires to London 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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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport