Cheap flights from Buenos Aires to London from £458

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 5/12. 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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Multiple Airlines Logo
10:35 - 09:50AEP-LGW
20h 15m2 stops
Multiple Airlines Logo
17:00 - 19:00LGW-AEP
30h 00m3 stops
£954Multiple Airlines
Find Deal
Wed, 11 Feb - Wed, 15 Apr
LATAM Airlines Logo
08:40 - 17:15AEP-LHR
28h 35m2 stops
LATAM Airlines Logo
17:10 - 14:40LHR-AEP
25h 30m2 stops
£955LATAM Airlines
Find Deal
Mon, 18 May - Tue, 2 Jun
LEVEL Logo
12:00 - 09:10EZE-LHR
17h 10m1 stop
LEVEL Logo
20:50 - 10:15LHR-EZE
17h 25m1 stop
£955LEVEL
Find Deal
Tue, 31 Mar - Thu, 16 Apr
Multiple Airlines Logo
14:45 - 20:00EZE-STN
26h 15m3 stops
Multiple Airlines Logo
16:20 - 17:00STN-EZE
27h 40m2 stops
£955Multiple Airlines
Find Deal
Mon, 16 Mar - Sat, 28 Mar
Lufthansa Logo
17:45 - 14:45EZE-LHR
18h 00m1 stop
Lufthansa Logo
18:30 - 07:55LHR-EZE
16h 25m1 stop
£957Lufthansa
Find Deal
Mon, 8 Dec - Wed, 24 Dec
Air Europa Logo
13:15 - 09:00EZE-LGW
16h 45m1 stop
Air Europa Logo
17:25 - 07:40LGW-EZE
18h 15m1 stop
£961Air Europa
Find Deal
Wed, 11 Feb - Wed, 15 Apr
ITA Airways Logo
22:00 - 10:55EZE-LCY
33h 55m1 stop
ITA Airways Logo
08:25 - 08:45LCY-EZE
27h 20m1 stop
£970ITA Airways
Find Deal
Tue, 3 Mar - Wed, 18 Mar
Lufthansa Logo
17:45 - 16:40EZE-LCY
19h 55m1 stop
Lufthansa Logo
18:10 - 07:55LCY-EZE
16h 45m1 stop
£976Lufthansa
Find Deal
Mon, 8 Dec - Wed, 24 Dec
Air Europa Logo
12:10 - 09:00EZE-LGW
16h 50m1 stop
Air Europa Logo
17:25 - 07:40LGW-EZE
18h 15m1 stop
£987Air Europa
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Mon, 27 Apr - Mon, 11 May
ITA Airways Logo
13:50 - 10:55EZE-LCY
18h 05m1 stop
ITA Airways Logo
08:25 - 19:50LCY-EZE
38h 25m1 stop
£1,048ITA Airways
Find Deal
Fri, 13 Mar - Mon, 23 Mar

Avianca flights from Buenos Aires to London

Our best Avianca deals on Buenos Aires to London flight tickets
Avianca
2 Mar
EZE01:40Buenos Aires Ministro Pistarini
33h 55m
1 stop
LHR14:35London Heathrow
11 Mar
LHR21:40London Heathrow
35h 10m
1 stop
EZE05:50Buenos Aires Ministro Pistarini
Avianca
4 Mar
EZE16:55Buenos Aires Ministro Pistarini
18h 40m
1 stop
LHR14:35London Heathrow
18 Mar
LHR21:40London Heathrow
21h 10m
1 stop
EZE15:50Buenos Aires Ministro Pistarini
Avianca
9 Mar
EZE01:40Buenos Aires Ministro Pistarini
33h 55m
1 stop
LHR14:35London Heathrow
18 Mar
LHR21:40London Heathrow
21h 10m
1 stop
EZE15:50Buenos Aires Ministro Pistarini

LATAM Airlines flights from Buenos Aires to London

Our best LATAM Airlines deals on Buenos Aires to London flight tickets
LATAM Airlines
18 May
AEP08:40Buenos Aires Jorge Newbery
28h 35m
2 stops
LHR17:15London Heathrow
2 Jun
LHR17:10London Heathrow
25h 30m
2 stops
AEP14:40Buenos Aires Jorge Newbery
LATAM Airlines
13 Mar
AEP18:20Buenos Aires Jorge Newbery
19h 15m
2 stops
LHR16:35London Heathrow
23 Mar
LHR20:15London Heathrow
16h 25m
1 stop
AEP09:40Buenos Aires Jorge Newbery
LATAM Airlines
20 May
AEP14:55Buenos Aires Jorge Newbery
20h 10m
1 stop
LHR15:05London Heathrow
4 Jun
LHR17:10London Heathrow
24h 50m
2 stops
AEP14:00Buenos Aires Jorge Newbery

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 27 November 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 - LGW

AEPLGW

Buenos Aires Jorge Newbery

Wed 11/2

10:35-09:50

2 stops20h 15m

London Gatwick

Wed 15/4

17:00-19:00

3 stops30h 00m

£954

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 18/5

08:40-17:15

2 stops28h 35m

London Heathrow

Tue 2/6

17:10-14:40

2 stops25h 30m

£955

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Tue 31/3

12:00-09:10

1 stop17h 10m

London Heathrow

Thu 16/4

20:50-10:15

1 stop17h 25m

£955

Buenos AiresLondon

EZE - STN

EZESTN

Buenos Aires Ministro Pistarini

Mon 16/3

14:45-20:00

3 stops26h 15m

London Stansted

Sat 28/3

16:20-17:00

2 stops27h 40m

£955

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 8/12

17:45-14:45

1 stop18h 00m

London Heathrow

Wed 24/12

18:30-07:55

1 stop16h 25m

£957

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Wed 11/2

13:15-09:00

1 stop16h 45m

London Gatwick

Wed 15/4

17:25-07:40

1 stop18h 15m

£961

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Tue 3/3

22:00-10:55

1 stop33h 55m

London City

Wed 18/3

08:25-08:45

1 stop27h 20m

£970

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Mon 8/12

17:45-16:40

1 stop19h 55m

London City

Wed 24/12

18:10-07:55

1 stop16h 45m

£976

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Mon 27/4

12:10-09:00

1 stop16h 50m

London Gatwick

Mon 11/5

17:25-07:40

1 stop18h 15m

£987

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Fri 13/3

13:50-10:55

1 stop18h 05m

London City

Mon 23/3

08:25-19:50

1 stop38h 25m

£1,048

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?

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 £1,029, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Buenos Aires averaging around £1,044.

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 £1,003. Flights at midday are often more expensive, with an average ticket price of £1,793.

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 £1,284 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 £1,129 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 21% 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 November 2025, prices for Buenos Aires to London flights are approximately 18% 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 15m

Direct flights

Every day

Airports in London

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

  • 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
IberiaPriceFrom £963Free CancellationRating
7.0
3,035 reviews
Search Iberia flights
British AirwaysPriceFrom £1,038Free CancellationRating
6.7
7,539 reviews
Search British Airways flights
  • British Airways Flights From Buenos Aires to London

    British Airways flight deals from Buenos Aires to London start from £1,038 round-trip. Over the 7 British Airways flights for this route in a normal week, average airfare is usually £1,402 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
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Dover
Colchester
Chelmsford
Hayes
Worthing
Ramsgate
Dartford
Bedford
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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1 adult
Sat 27/12
Sat 3/1

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