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Cheap flights from Buenos Aires to London from £321

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buenos Aires to London

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
16:50 - 07:10EZE  Buenos Aires Ministro Pistarini-LHR London Heathrow
59h 20m3 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
09:30 - 14:30LHR  London Heathrow-EZE Buenos Aires Ministro Pistarini
33h 00m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Sao Paulo Guarulhos Intl
£869Air Canada
Wed, 24 Mar - Wed, 7 Apr
Air Canada Logo
16:50 - 07:10EZE  Buenos Aires Ministro Pistarini-LHR London Heathrow
35h 20m3 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
14:05 - 14:30LHR  London Heathrow-EZE Buenos Aires Ministro Pistarini
52h 25m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Sao Paulo Guarulhos Intl
£869Air Canada
Sat, 20 Mar - Sat, 3 Apr
Air Canada Logo
16:45 - 06:30EZE  Buenos Aires Ministro Pistarini-LHR London Heathrow
34h 45m2 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl
Air Canada Logo
18:00 - 15:05LHR  London Heathrow-EZE Buenos Aires Ministro Pistarini
24h 05m2 stops Toronto Pearson Intl Sao Paulo Guarulhos Intl
£872Air Canada
Wed, 18 Nov - Sat, 28 Nov
Air Canada Logo
16:45 - 06:30EZE  Buenos Aires Ministro Pistarini-LHR London Heathrow
34h 45m2 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl
Air Canada Logo
18:00 - 15:05LHR  London Heathrow-EZE Buenos Aires Ministro Pistarini
24h 05m2 stops Toronto Pearson Intl Sao Paulo Guarulhos Intl
£873Air Canada
Mon, 16 Nov - Sun, 29 Nov
Multiple Airlines Logo
01:40 - 11:45EZE  Buenos Aires Ministro Pistarini-LTN London Luton
31h 05m2 stops Bogotá El Dorado Madrid Barajas
Multiple Airlines Logo
21:30 - 06:05LTN  London Luton-EZE Buenos Aires Ministro Pistarini
35h 35m2 stops Madrid Barajas Bogotá El Dorado
£874Multiple Airlines
Mon, 30 Nov - Sat, 5 Dec
Multiple Airlines Logo
13:25 - 09:30EZE  Buenos Aires Ministro Pistarini-LHR London Heathrow
16h 05m1 stop Madrid Barajas
Multiple Airlines Logo
15:50 - 06:45LHR  London Heathrow-EZE Buenos Aires Ministro Pistarini
18h 55m1 stop Madrid Barajas
£874Multiple Airlines
Wed, 7 Apr - Tue, 13 Apr
LATAM Airlines Logo
12:55 - 17:40AEP  Buenos Aires Jorge Newbery-LHR London Heathrow
25h 45m2 stops Sao Paulo Guarulhos Intl Rome Fiumicino
LATAM Airlines Logo
19:40 - 16:00LHR  London Heathrow-AEP Buenos Aires Jorge Newbery
23h 20m2 stops Madrid Barajas Lima J Chavez Intl
£945LATAM Airlines
Sat, 5 Dec - Mon, 15 Mar
LATAM Airlines Logo
10:35 - 17:35AEP  Buenos Aires Jorge Newbery-LHR London Heathrow
28h 00m2 stops Sao Paulo Guarulhos Intl Rome Fiumicino
LATAM Airlines Logo
19:40 - 16:00LHR  London Heathrow-AEP Buenos Aires Jorge Newbery
23h 20m2 stops Madrid Barajas Lima J Chavez Intl
£947LATAM Airlines
Wed, 9 Dec - Mon, 15 Mar
British Airways Logo
15:10 - 08:30EZE  Buenos Aires Ministro Pistarini-LHR London Heathrow
13h 20mdirect
British Airways Logo
20:00 - 16:25LHR  London Heathrow-EZE Buenos Aires Ministro Pistarini
24h 25m1 stop Madrid Barajas
£995British Airways
Fri, 23 Apr - Sun, 9 May
British Airways Logo
15:10 - 08:30EZE  Buenos Aires Ministro Pistarini-LHR London Heathrow
13h 20mdirect
British Airways Logo
20:00 - 16:25LHR  London Heathrow-EZE Buenos Aires Ministro Pistarini
24h 25m1 stop Madrid Barajas
£995British Airways
Tue, 13 Apr - Mon, 3 May

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Air Canada flights from Buenos Aires to London

Our best Air Canada deals on Buenos Aires to London flight tickets
Air Canada
20 Mar
EZE16:50Buenos Aires Ministro Pistarini
35h 20m
3 stops
LHR07:10London Heathrow
3 Apr
LHR14:05London Heathrow
52h 25m
3 stops
EZE14:30Buenos Aires Ministro Pistarini
£869
Air Canada
18 Nov
EZE16:45Buenos Aires Ministro Pistarini
34h 45m
2 stops
LHR06:30London Heathrow
28 Nov
LHR18:00London Heathrow
24h 05m
2 stops
EZE15:05Buenos Aires Ministro Pistarini
£872
Air Canada
16 Nov
EZE16:45Buenos Aires Ministro Pistarini
34h 45m
2 stops
LHR06:30London Heathrow
29 Nov
LHR18:00London Heathrow
24h 05m
2 stops
EZE15:05Buenos Aires Ministro Pistarini
£873

Avianca flights from Buenos Aires to London

Our best Avianca deals on Buenos Aires to London flight tickets
Avianca
16 Nov
EZE16:50Buenos Aires Ministro Pistarini
18h 45m
1 stop
LHR14:35London Heathrow
23 Nov
LHR21:35London Heathrow
21h 05m
1 stop
EZE15:40Buenos Aires Ministro Pistarini
£878
Avianca
14 Nov
AEP07:05Buenos Aires Jorge Newbery
28h 30m
1 stop
LHR14:35London Heathrow
30 Nov
LHR21:35London Heathrow
35h 05m
1 stop
AEP05:40Buenos Aires Jorge Newbery
£891
Avianca
16 Nov
EZE16:50Buenos Aires Ministro Pistarini
18h 45m
1 stop
LHR14:35London Heathrow
29 Nov
LHR21:35London Heathrow
29h 55m
1 stop
EZE00:30Buenos Aires Ministro Pistarini
£903

momondo Fare Finder

 
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

Cheapest return flight

Buenos AiresLondon

EZE Buenos Aires Ministro Pistarini - LHR London Heathrow

EZELHR

Buenos Aires Ministro Pistarini

Wed 24/3

16:50-07:10

3 stops59h 20m

London Heathrow

Wed 7/4

09:30-14:30

3 stops33h 00m

£869

Buenos AiresLondon

EZE Buenos Aires Ministro Pistarini - LHR London Heathrow

EZELHR

Buenos Aires Ministro Pistarini

Sat 20/3

16:50-07:10

3 stops35h 20m

London Heathrow

Sat 3/4

14:05-14:30

3 stops52h 25m

£869

Buenos AiresLondon

EZE Buenos Aires Ministro Pistarini - LHR London Heathrow

EZELHR

Buenos Aires Ministro Pistarini

Wed 18/11

16:45-06:30

2 stops34h 45m

London Heathrow

Sat 28/11

18:00-15:05

2 stops24h 05m

£872

Buenos AiresLondon

EZE Buenos Aires Ministro Pistarini - LHR London Heathrow

EZELHR

Buenos Aires Ministro Pistarini

Mon 16/11

16:45-06:30

2 stops34h 45m

London Heathrow

Sun 29/11

18:00-15:05

2 stops24h 05m

£873

Buenos AiresLondon

EZE Buenos Aires Ministro Pistarini - LTN London Luton

EZELTN

Buenos Aires Ministro Pistarini

Mon 30/11

01:40-11:45

2 stops31h 05m

London Luton

Sat 5/12

21:30-06:05

2 stops35h 35m

£874
Fastest return journey

Buenos AiresLondon

EZE Buenos Aires Ministro Pistarini - LHR London Heathrow

EZELHR

Buenos Aires Ministro Pistarini

Wed 7/4

13:25-09:30

1 stop16h 05m

London Heathrow

Tue 13/4

15:50-06:45

1 stop18h 55m

£874

Buenos AiresLondon

AEP Buenos Aires Jorge Newbery - LHR London Heathrow

AEPLHR

Buenos Aires Jorge Newbery

Sat 5/12

12:55-17:40

2 stops25h 45m

London Heathrow

Mon 15/3

19:40-16:00

2 stops23h 20m

£945

Buenos AiresLondon

AEP Buenos Aires Jorge Newbery - LHR London Heathrow

AEPLHR

Buenos Aires Jorge Newbery

Wed 9/12

10:35-17:35

2 stops28h 00m

London Heathrow

Mon 15/3

19:40-16:00

2 stops23h 20m

£947

Buenos AiresLondon

EZE Buenos Aires Ministro Pistarini - LHR London Heathrow

EZELHR

Buenos Aires Ministro Pistarini

Fri 23/4

15:10-08:30

Nonstop13h 20m

London Heathrow

Sun 9/5

20:00-16:25

1 stop24h 25m

£995

Buenos AiresLondon

EZE Buenos Aires Ministro Pistarini - LHR London Heathrow

EZELHR

Buenos Aires Ministro Pistarini

Tue 13/4

15:10-08:30

Nonstop13h 20m

London Heathrow

Mon 3/5

20:00-16:25

1 stop24h 25m

£995

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

Prices are currently low for flights on this route.

Typical prices usually range from £949 to £1,297.
The lowest price recently found on this route was £869.

What is the cheapest month to fly to London?

The cheapest month to fly to London from Buenos Aires is in March. Flight prices, which tend to average around £990, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Buenos Aires averaging around £1,010.

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

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £1,200. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Buenos Aires to London for around £1,608.

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 morning when flights can be purchased for as low as £1,571. Flights at midday are often more expensive, with an average ticket price of £1,660.

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 from Buenos Aires 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 £1,212 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 £912 on momondo.

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

There is only 1 cabin class 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.

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

As of October 2026, prices for Buenos Aires to London flights are approximately 4% 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

Best price found

£321

Fastest flight time

13h 20m

Direct flights

Every day

Airports in London

6 airports
The best one-way flight to London from Buenos Aires in the past 72 hours is £321. The best return flight deal from Buenos Aires to London found on momondo in the last 72 hours is £869.
The fastest flight from Buenos Aires to London takes 13h 20m
Direct flights go from Buenos Aires to London every day.
There are 6 airports in London. From Buenos Aires there are direct flights to London Heathrow (LHR).
Search flight deals

Frequently asked questions about flying from Buenos Aires to London

  • 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 13h 20m.

  • 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
LATAM AirlinesPriceFrom £551Free CancellationRating
7.4
1,970 reviews
Search LATAM Airlines flights
British AirwaysPriceFrom £1,042Free CancellationRating
6.7
8,267 reviews
Search British Airways flights

  • British Airways Flights From Buenos Aires to London

    British Airways flight deals from Buenos Aires to London start from £1,042 round-trip. Over the 3 British Airways flights for this route in a normal week, average airfare is usually £1,282 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
Wembley
Gatwick
Milton Keynes
Southend-on-Sea
Luton
Ipswich
Slough
Maidstone
Folkestone
Hastings
Ilford
Canterbury
Chichester
Colchester
Guildford
Hayes
Bedford
Worthing
Winchester

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

London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport