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Cheap flights from Buenos Aires to London from £497

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 10/6. 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

Enter your travel dates to find the best prices.
American Airlines Logo
22:35 - 06:55
EZE
-
LHR
28h 20m
1 stop
American Airlines Logo
09:55 - 07:15
LHR
-
EZE
25h 20m
1 stop
£1,032American Airlines
Sun, 12 Jul - Sun, 30 Aug
American Airlines Logo
21:10 - 06:40
EZE
-
LHR
29h 30m
1 stop
American Airlines Logo
15:20 - 11:05
LHR
-
EZE
23h 45m
1 stop
£1,033American Airlines
Mon, 24 Aug - Tue, 1 Sep
Air Canada Logo
16:35 - 06:35
EZE
-
LHR
34h 00m
2 stops
Air Canada Logo
17:40 - 14:30
LHR
-
EZE
24h 50m
2 stops
£1,034Air Canada
Thu, 11 Jun - Fri, 3 Jul
Multiple Airlines Logo
02:50 - 14:55
EZE
-
LHR
32h 05m
3 stops
Multiple Airlines Logo
22:05 - 15:40
LHR
-
EZE
21h 35m
1 stop
£1,035Multiple Airlines
Sat, 6 Jun - Sat, 20 Jun
Multiple Airlines Logo
01:35 - 06:35
EZE
-
LHR
25h 00m
2 stops
Multiple Airlines Logo
17:40 - 14:30
LHR
-
EZE
24h 50m
1 stop
£1,035Multiple Airlines
Sat, 6 Jun - Fri, 19 Jun
Multiple Airlines Logo
02:10 - 15:05
EZE
-
LHR
32h 55m
1 stop
Multiple Airlines Logo
22:05 - 05:40
LHR
-
EZE
35h 35m
1 stop
£1,036Multiple Airlines
Wed, 3 Jun - Sun, 7 Jun
Air Canada Logo
16:35 - 08:35
EZE
-
LHR
36h 00m
1 stop
Air Canada Logo
09:30 - 14:30
LHR
-
EZE
33h 00m
2 stops
£1,037Air Canada
Thu, 13 Aug - Tue, 1 Sep
Air Canada Logo
16:35 - 21:00
EZE
-
LHR
48h 25m
3 stops
Air Canada Logo
17:15 - 14:30
LHR
-
EZE
49h 15m
3 stops
£1,038Air Canada
Mon, 8 Jun - Thu, 18 Jun
LATAM Airlines Logo
14:55 - 14:05
AEP
-
LHR
20h 10m
1 stop
LATAM Airlines Logo
20:15 - 12:00
LHR
-
AEP
18h 45m
1 stop
£1,058LATAM Airlines
Mon, 26 Oct - Fri, 20 Nov
LATAM Airlines Logo
18:20 - 15:05
AEP
-
LHR
16h 45m
1 stop
LATAM Airlines Logo
21:20 - 09:40
LHR
-
AEP
16h 20m
1 stop
£1,062LATAM Airlines
Mon, 27 Jul - Mon, 17 Aug

American Airlines flights from Buenos Aires to London Heathrow Airport

Our best American Airlines deals on Buenos Aires to London Heathrow Airport flight tickets
American Airlines
12 Jul
EZE22:35Buenos Aires Ministro Pistarini
28h 20m
1 stop
LHR06:55London Heathrow
30 Aug
LHR09:55London Heathrow
25h 20m
1 stop
EZE07:15Buenos Aires Ministro Pistarini
£1,032
American Airlines
24 Aug
EZE21:10Buenos Aires Ministro Pistarini
29h 30m
1 stop
LHR06:40London Heathrow
1 Sept
LHR15:20London Heathrow
23h 45m
1 stop
EZE11:05Buenos Aires Ministro Pistarini
£1,033
American Airlines
15 Aug
EZE21:10Buenos Aires Ministro Pistarini
29h 15m
1 stop
LHR06:25London Heathrow
23 Aug
LHR09:55London Heathrow
25h 20m
1 stop
EZE07:15Buenos Aires Ministro Pistarini
£1,047

Ethiopian Air flights from Buenos Aires to London Heathrow Airport

Our best Ethiopian Air deals on Buenos Aires to London Heathrow Airport flight tickets
Ethiopian Air
1 Jun
EZE21:55Buenos Aires Ministro Pistarini
29h 05m
2 stops
LHR07:00London Heathrow
16 Jun
LHR21:00London Heathrow
27h 25m
1 stop
EZE20:25Buenos Aires Ministro Pistarini
£1,040
Ethiopian Air
1 Jun
EZE21:55Buenos Aires Ministro Pistarini
29h 05m
2 stops
LHR07:00London Heathrow
16 Jun
LHR21:00London Heathrow
27h 25m
1 stop
EZE20:25Buenos Aires Ministro Pistarini
£1,044
Ethiopian Air
4 Jun
EZE21:55Buenos Aires Ministro Pistarini
29h 05m
2 stops
LHR07:00London Heathrow
24 Jun
LHR21:00London Heathrow
27h 25m
1 stop
EZE20:25Buenos Aires Ministro Pistarini
£1,047

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 20 May 2026.
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

Cheapest return flight

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 12/7

22:35-06:55

1 stop28h 20m

London Heathrow

Sun 30/8

09:55-07:15

1 stop25h 20m

£1,032

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 24/8

21:10-06:40

1 stop29h 30m

London Heathrow

Tue 1/9

15:20-11:05

1 stop23h 45m

£1,033

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 11/6

16:35-06:35

2 stops34h 00m

London Heathrow

Fri 3/7

17:40-14:30

2 stops24h 50m

£1,034

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sat 6/6

02:50-14:55

3 stops32h 05m

London Heathrow

Sat 20/6

22:05-15:40

1 stop21h 35m

£1,035

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sat 6/6

01:35-06:35

2 stops25h 00m

London Heathrow

Fri 19/6

17:40-14:30

1 stop24h 50m

£1,035

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 3/6

02:10-15:05

1 stop32h 55m

London Heathrow

Sun 7/6

22:05-05:40

1 stop35h 35m

£1,036

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 13/8

16:35-08:35

1 stop36h 00m

London Heathrow

Tue 1/9

09:30-14:30

2 stops33h 00m

£1,037

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 8/6

16:35-21:00

3 stops48h 25m

London Heathrow

Thu 18/6

17:15-14:30

3 stops49h 15m

£1,038

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 26/10

14:55-14:05

1 stop20h 10m

London Heathrow

Fri 20/11

20:15-12:00

1 stop18h 45m

£1,058
Fastest return journey

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 27/7

18:20-15:05

1 stop16h 45m

London Heathrow

Mon 17/8

21:20-09:40

1 stop16h 20m

£1,062

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, July 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 £86. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Buenos Aires averaging around £97.

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 from Buenos Aires 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 £1,218 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 £994 on momondo.

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

There are 2 cabin classes available to choose from on Buenos Aires to London Heathrow Airport 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 4% 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.
Search flight deals

Frequently asked questions about flying from Buenos Aires to London Heathrow Airport

  • How far is Buenos Aires to London Heathrow by plane?

    London Heathrow is 6898.3 mi away from Buenos Aires. 15h 45m 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
British AirwaysPriceFrom £1,041Free CancellationRating
6.7
7,989 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 £1,041 round-trip. Over the 7 British Airways flights for this route in a normal week, average airfare is usually £1,297 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
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Milton Keynes
Gatwick
Luton
Wembley
Stratford-upon-Avon
Slough
Maidstone
Northampton
Swindon
Ipswich
Southend-on-Sea
Canterbury
Ilford
Hayes
Guildford
Poole
Folkestone
Chelmsford
Dover

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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