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Cheap flights from Buenos Aires to London from £510

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 28/3. 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.
United Airlines Logo
21:05 - 09:40
EZE
-
LHR
33h 35m
2 stops
United Airlines Logo
13:40 - 08:00
LHR
-
EZE
22h 20m
1 stop
£796United Airlines
Mon, 23 Mar - Mon, 30 Mar
United Airlines Logo
22:55 - 07:30
EZE
-
LHR
29h 35m
1 stop
United Airlines Logo
12:00 - 08:20
LHR
-
EZE
47h 20m
2 stops
£797United Airlines
Mon, 9 Mar - Mon, 23 Mar
United Airlines Logo
22:55 - 07:30
EZE
-
LHR
29h 35m
1 stop
United Airlines Logo
11:25 - 08:00
LHR
-
EZE
24h 35m
2 stops
£798United Airlines
Mon, 23 Mar - Mon, 30 Mar
Air Canada Logo
16:35 - 09:35
EZE
-
LHR
37h 00m
2 stops
Air Canada Logo
17:40 - 14:30
LHR
-
EZE
24h 50m
2 stops
£801Air Canada
Mon, 11 May - Tue, 26 May
Air Canada Logo
16:30 - 08:35
EZE
-
LHR
36h 05m
2 stops
Air Canada Logo
18:00 - 15:10
LHR
-
EZE
24h 10m
2 stops
£805Air Canada
Wed, 29 Apr - Thu, 29 Oct
Air Canada Logo
13:40 - 07:10
AEP
-
LHR
38h 30m
2 stops
Air Canada Logo
13:25 - 17:10
LHR
-
AEP
30h 45m
2 stops
£911Air Canada
Wed, 18 Mar - Fri, 6 Nov
LATAM Airlines Logo
14:55 - 16:35
AEP
-
LHR
22h 40m
2 stops
LATAM Airlines Logo
20:15 - 11:45
LHR
-
AEP
18h 30m
1 stop
£929LATAM Airlines
Tue, 3 Mar - Tue, 17 Mar
LATAM Airlines Logo
22:55 - 14:05
AEP
-
LHR
36h 10m
1 stop
LATAM Airlines Logo
20:15 - 14:00
LHR
-
AEP
20h 45m
1 stop
£933LATAM Airlines
Wed, 18 Mar - Fri, 6 Nov
LATAM Airlines Logo
15:40 - 18:15
AEP
-
LHR
23h 35m
2 stops
LATAM Airlines Logo
20:15 - 09:40
LHR
-
AEP
16h 25m
1 stop
£941LATAM Airlines
Mon, 9 Mar - Mon, 23 Mar
LATAM Airlines Logo
15:40 - 18:15
AEP
-
LHR
23h 35m
2 stops
LATAM Airlines Logo
20:15 - 14:00
LHR
-
AEP
20h 45m
1 stop
£942LATAM Airlines
Mon, 9 Mar - Mon, 23 Mar

United Airlines flights from Buenos Aires to London Heathrow Airport

Our best United Airlines deals on Buenos Aires to London Heathrow Airport flight tickets
United Airlines
23 Mar
EZE21:05Buenos Aires Ministro Pistarini
33h 35m
2 stops
LHR09:40London Heathrow
30 Mar
LHR13:40London Heathrow
22h 20m
1 stop
EZE08:00Buenos Aires Ministro Pistarini
£796
United Airlines
9 Mar
EZE22:55Buenos Aires Ministro Pistarini
29h 35m
1 stop
LHR07:30London Heathrow
23 Mar
LHR12:00London Heathrow
47h 20m
2 stops
EZE08:20Buenos Aires Ministro Pistarini
£797
United Airlines
23 Mar
EZE22:55Buenos Aires Ministro Pistarini
29h 35m
1 stop
LHR07:30London Heathrow
30 Mar
LHR11:25London Heathrow
24h 35m
2 stops
EZE08:00Buenos Aires Ministro Pistarini
£798

Air Canada flights from Buenos Aires to London Heathrow Airport

Our best Air Canada deals on Buenos Aires to London Heathrow Airport flight tickets
Air Canada
11 May
EZE16:35Buenos Aires Ministro Pistarini
37h 00m
2 stops
LHR09:35London Heathrow
26 May
LHR17:40London Heathrow
24h 50m
2 stops
EZE14:30Buenos Aires Ministro Pistarini
£801
Air Canada
29 Apr
EZE16:30Buenos Aires Ministro Pistarini
36h 05m
2 stops
LHR08:35London Heathrow
29 Oct
LHR18:00London Heathrow
24h 10m
2 stops
EZE15:10Buenos Aires Ministro Pistarini
£805
Air Canada
16 Mar
EZE16:45Buenos Aires Ministro Pistarini
34h 45m
2 stops
LHR06:30London Heathrow
3 Nov
LHR11:10London Heathrow
31h 00m
2 stops
EZE15:10Buenos Aires Ministro Pistarini
£809

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 9 February 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

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 23/3

21:05-09:40

2 stops33h 35m

London Heathrow

Mon 30/3

13:40-08:00

1 stop22h 20m

£796

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 9/3

22:55-07:30

1 stop29h 35m

London Heathrow

Mon 23/3

12:00-08:20

2 stops47h 20m

£797

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 23/3

22:55-07:30

1 stop29h 35m

London Heathrow

Mon 30/3

11:25-08:00

2 stops24h 35m

£798

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 11/5

16:35-09:35

2 stops37h 00m

London Heathrow

Tue 26/5

17:40-14:30

2 stops24h 50m

£801

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 29/4

16:30-08:35

2 stops36h 05m

London Heathrow

Thu 29/10

18:00-15:10

2 stops24h 10m

£805

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Wed 18/3

13:40-07:10

2 stops38h 30m

London Heathrow

Fri 6/11

13:25-17:10

2 stops30h 45m

£911

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Tue 3/3

14:55-16:35

2 stops22h 40m

London Heathrow

Tue 17/3

20:15-11:45

1 stop18h 30m

£929

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Wed 18/3

22:55-14:05

1 stop36h 10m

London Heathrow

Fri 6/11

20:15-14:00

1 stop20h 45m

£933

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 9/3

15:40-18:15

2 stops23h 35m

London Heathrow

Mon 23/3

20:15-09:40

1 stop16h 25m

£941

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 9/3

15:40-18:15

2 stops23h 35m

London Heathrow

Mon 23/3

20:15-14:00

1 stop20h 45m

£942

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, February 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 £835. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Buenos Aires averaging around £949.

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 £1,215 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 £978 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 29% 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. 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 £986Free CancellationRating
6.7
7,721 reviews
Search British Airways flights
IberiaPriceFrom £1,077Free CancellationRating
7.0
3,110 reviews
Search Iberia flights

  • British Airways Flights From Buenos Aires to London Heathrow Airport

    British Airways flight deals from Buenos Aires to London Heathrow Airport start from £986 round-trip. Over the 7 British Airways flights for this route in a normal week, average airfare is usually £1,359 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
Northampton
Stratford-upon-Avon
Swindon
Southend-on-Sea
Canterbury
Ipswich
Ilford
Poole
Guildford
Chelmsford
Hayes
Dover
Swanage
Folkestone

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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