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Cheap flights from Buenos Aires to London from £462

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 22/11. 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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Cheap return flights

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Air Canada Logo
13:40 - 06:30AEP-LHR
37h 50m2 stops
Air Canada Logo
14:05 - 17:10LHR-AEP
31h 05m2 stops
£932Air Canada
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Sun, 15 Mar - Fri, 17 Apr
Multiple Airlines Logo
13:40 - 07:10AEP-LHR
38h 30m2 stops
Multiple Airlines Logo
17:40 - 17:10LHR-AEP
27h 30m2 stops
£933Multiple Airlines
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Fri, 20 Mar - Thu, 16 Apr
Avianca Logo
01:40 - 14:35EZE-LHR
33h 55m1 stop
Avianca Logo
21:40 - 00:35LHR-EZE
29h 55m1 stop
£938Avianca
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Sat, 7 Feb - Sun, 8 Mar
Avianca Logo
01:40 - 14:35EZE-LHR
33h 55m1 stop
Avianca Logo
22:05 - 00:10LHR-EZE
30h 05m1 stop
£940Avianca
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Tue, 17 Mar - Sat, 18 Apr
LATAM Airlines Logo
12:40 - 14:05AEP-LHR
22h 25m1 stop
LATAM Airlines Logo
21:20 - 10:30LHR-AEP
17h 10m1 stop
£942LATAM Airlines
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Wed, 18 Mar - Sun, 29 Mar
LATAM Airlines Logo
12:48 - 15:05EZE-LHR
22h 17m2 stops
LATAM Airlines Logo
21:20 - 17:00LHR-EZE
23h 40m1 stop
£942LATAM Airlines
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Tue, 28 Apr - Fri, 8 May
Lufthansa Logo
17:45 - 15:50EZE-LHR
19h 05m1 stop
Lufthansa Logo
18:30 - 07:55LHR-EZE
16h 25m1 stop
£945Lufthansa
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Mon, 1 Dec - Fri, 5 Dec
Lufthansa Logo
17:45 - 12:50EZE-LHR
16h 05m1 stop
Lufthansa Logo
18:30 - 07:55LHR-EZE
16h 25m1 stop
£950Lufthansa
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Thu, 20 Nov - Tue, 25 Nov
Iberia Logo
22:45 - 18:50EZE-LHR
17h 05m1 stop
Iberia Logo
18:45 - 08:40LHR-EZE
16h 55m1 stop
£963Iberia
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Mon, 1 Dec - Thu, 1 Jan
Iberia Logo
13:00 - 09:10EZE-LHR
17h 10m1 stop
Iberia Logo
18:50 - 17:55LHR-EZE
26h 05m1 stop
£977Iberia
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Thu, 20 Nov - Tue, 25 Nov

LEVEL flights from Buenos Aires to London Heathrow Airport

Our best LEVEL deals on Buenos Aires to London Heathrow Airport flight tickets
LEVEL
20 Nov
EZE13:00Buenos Aires Ministro Pistarini
17h 10m
1 stop
LHR09:10London Heathrow
25 Nov
LHR18:50London Heathrow
26h 05m
1 stop
EZE17:55Buenos Aires Ministro Pistarini
£977
Find similar
LEVEL
13 Nov
EZE13:00Buenos Aires Ministro Pistarini
17h 10m
1 stop
LHR09:10London Heathrow
17 Nov
LHR18:50London Heathrow
26h 05m
1 stop
EZE17:55Buenos Aires Ministro Pistarini
£1,084
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Lufthansa flights from Buenos Aires to London Heathrow Airport

Our best Lufthansa deals on Buenos Aires to London Heathrow Airport flight tickets
Lufthansa
1 Dec
EZE17:45Buenos Aires Ministro Pistarini
19h 05m
1 stop
LHR15:50London Heathrow
5 Dec
LHR18:30London Heathrow
16h 25m
1 stop
EZE07:55Buenos Aires Ministro Pistarini
£945
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Lufthansa
20 Nov
EZE17:45Buenos Aires Ministro Pistarini
16h 05m
1 stop
LHR12:50London Heathrow
25 Nov
LHR18:30London Heathrow
16h 25m
1 stop
EZE07:55Buenos Aires Ministro Pistarini
£950
Find similar
Lufthansa
20 Nov
EZE17:45Buenos Aires Ministro Pistarini
21h 00m
1 stop
LHR17:45London Heathrow
25 Nov
LHR08:45London Heathrow
26h 10m
2 stops
EZE07:55Buenos Aires Ministro Pistarini
£968
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momondo Fare Finder

 
Customise your flight search to find flights from Buenos Aires to London Heathrow Airport 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 31 October 2025.
Use the filters below to find and compare flights from Buenos Aires to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Sun 15/3

13:40-06:30

2 stops37h 50m

London Heathrow

Fri 17/4

14:05-17:10

2 stops31h 05m

£932

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Fri 20/3

13:40-07:10

2 stops38h 30m

London Heathrow

Thu 16/4

17:40-17:10

2 stops27h 30m

£933

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sat 7/2

01:40-14:35

1 stop33h 55m

London Heathrow

Sun 8/3

21:40-00:35

1 stop29h 55m

£938

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Tue 17/3

01:40-14:35

1 stop33h 55m

London Heathrow

Sat 18/4

22:05-00:10

1 stop30h 05m

£940

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Wed 18/3

12:40-14:05

1 stop22h 25m

London Heathrow

Sun 29/3

21:20-10:30

1 stop17h 10m

£942

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Tue 28/4

12:48-15:05

2 stops22h 17m

London Heathrow

Fri 8/5

21:20-17:00

1 stop23h 40m

£942

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 1/12

17:45-15:50

1 stop19h 05m

London Heathrow

Fri 5/12

18:30-07:55

1 stop16h 25m

£945

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 20/11

17:45-12:50

1 stop16h 05m

London Heathrow

Tue 25/11

18:30-07:55

1 stop16h 25m

£950

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 1/12

22:45-18:50

1 stop17h 05m

London Heathrow

Thu 1/1

18:45-08:40

1 stop16h 55m

£963

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 20/11

13:00-09:10

1 stop17h 10m

London Heathrow

Tue 25/11

18:50-17:55

1 stop26h 05m

£977

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 Heathrow Airport

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 Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

In general, March is the cheapest month to fly from Buenos Aires to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £1,012. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Buenos Aires averaging around £1,021.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Buenos Aires to London Heathrow Airport in the afternoon for as low as £1,067. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £1,797 on average. Flights to London Heathrow Airport from Buenos Aires at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Buenos Aires to London Heathrow flight route?

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

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

You are more likely to see cheaper flights to London Heathrow Airport from Buenos Aires when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £1,293 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Buenos Aires for as low as £977 on momondo.

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

There are 2 cabin classes available to choose from on Buenos Aires to London Heathrow 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 Heathrow Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Buenos Aires to London Heathrow Airport flight.

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

When to book flights from Buenos Aires to London Heathrow Airport

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

Cheap Buenos Aires to London Heathrow Airport (BUE to LHR) flight deals and tips

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

Fastest flight time

15h 45m

Direct flights

Every day
The fastest flight from Buenos Aires to London Heathrow Airport takes 15h 45m
Direct flights go from Buenos Aires to London Heathrow Airport every day.
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  • How far is Buenos Aires to London Heathrow by plane?

    London Heathrow is 6898.3 mi away from Buenos Aires. 16h 05m is a normal flight duration for this route.

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

    Prices for flights from Buenos Aires to London Heathrow Airport refresh daily.

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

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

    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 Heathrow Airport.

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

    The necessary travel and health documents for your London Heathrow Airport 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 Heathrow Airport?

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

Best airlines flying from Buenos Aires to London Heathrow Airport

Compare and see reviews for airlines that fly from Buenos Aires to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom £965Free CancellationRating
7.0
3,003 reviews
Search Iberia flights
British AirwaysPriceFrom £1,040Free CancellationRating
6.7
7,488 reviews
Search British Airways flights

  • British Airways Flights From Buenos Aires to London Heathrow Airport

    British Airways flight deals from Buenos Aires to London Heathrow Airport start from £1,040 round-trip. Over the 7 British Airways flights for this route in a normal week, average airfare is usually £1,405 round-trip - but some users have found much cheaper deals with momondo.

Travelling to a place near London?

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Swanage
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Chelmsford

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Buenos Aires to London for you.

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

Yes. momondo enables you to select and highlight flights to London from Buenos Aires with this policy.

How can momondo help me find flights from Buenos Aires to London?

momondo helps you find the best flight between Buenos Aires and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to London from Buenos Aires are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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