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Cheap flights from Buenos Aires to London from £373

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 13/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Buenos Aires to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:50 - 06:30
AEP
-
LHR
39h 40m
2 stops
Multiple Airlines Logo
13:00 - 17:10
LHR
-
AEP
31h 10m
2 stops
£946Multiple Airlines
Tue, 3 Nov - Fri, 20 Nov
Air Canada Logo
14:00 - 11:20
EZE
-
LHR
42h 20m
2 stops
Air Canada Logo
18:00 - 15:05
LHR
-
EZE
24h 05m
2 stops
£946Air Canada
Sun, 8 Nov - Tue, 24 Nov
Air Canada Logo
13:40 - 11:50
AEP
-
LHR
42h 10m
2 stops
Air Canada Logo
13:00 - 17:10
LHR
-
AEP
31h 10m
2 stops
£947Air Canada
Fri, 9 Oct - Sat, 31 Oct
Multiple Airlines Logo
10:50 - 09:10
EZE
-
LHR
18h 20m
1 stop
Multiple Airlines Logo
21:40 - 15:50
LHR
-
EZE
21h 10m
1 stop
£947Multiple Airlines
Mon, 12 Oct - Sun, 25 Oct
Air Canada Logo
14:00 - 08:30
EZE
-
LHR
39h 30m
2 stops
Air Canada Logo
13:00 - 15:05
LHR
-
EZE
29h 05m
3 stops
£948Air Canada
Sun, 8 Nov - Thu, 26 Nov
Multiple Airlines Logo
13:35 - 07:10
AEP
-
LHR
38h 35m
2 stops
Multiple Airlines Logo
15:00 - 17:10
LHR
-
AEP
29h 10m
2 stops
£948Multiple Airlines
Mon, 16 Nov - Mon, 30 Nov
Multiple Airlines Logo
13:35 - 07:10
AEP
-
LHR
38h 35m
2 stops
Multiple Airlines Logo
13:00 - 17:10
LHR
-
AEP
31h 10m
2 stops
£949Multiple Airlines
Fri, 11 Dec - Tue, 12 Jan
Air Canada Logo
16:35 - 10:00
EZE
-
LHR
37h 25m
3 stops
Air Canada Logo
08:30 - 14:30
LHR
-
EZE
34h 00m
2 stops
£949Air Canada
Wed, 12 Aug - Wed, 9 Sep
ITA Airways Logo
13:50 - 09:40
EZE
-
LHR
16h 50m
1 stop
ITA Airways Logo
16:30 - 19:55
LHR
-
EZE
30h 25m
1 stop
£951ITA Airways
Sun, 22 Nov - Sat, 5 Dec
ITA Airways Logo
13:50 - 09:40
EZE
-
LHR
16h 50m
1 stop
ITA Airways Logo
16:30 - 19:55
LHR
-
EZE
30h 25m
1 stop
£951ITA Airways
Sun, 22 Nov - Sat, 5 Dec

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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
8 Nov
EZE14:00Buenos Aires Ministro Pistarini
42h 20m
2 stops
LHR11:20London Heathrow
24 Nov
LHR18:00London Heathrow
24h 05m
2 stops
EZE15:05Buenos Aires Ministro Pistarini
£946
Air Canada
9 Oct
AEP13:40Buenos Aires Jorge Newbery
42h 10m
2 stops
LHR11:50London Heathrow
31 Oct
LHR13:00London Heathrow
31h 10m
2 stops
AEP17:10Buenos Aires Jorge Newbery
£947
Air Canada
8 Nov
EZE14:00Buenos Aires Ministro Pistarini
39h 30m
2 stops
LHR08:30London Heathrow
26 Nov
LHR13:00London Heathrow
29h 05m
3 stops
EZE15:05Buenos Aires Ministro Pistarini
£948

ITA Airways flights from Buenos Aires to London Heathrow Airport

Our best ITA Airways deals on Buenos Aires to London Heathrow Airport flight tickets
ITA Airways
22 Nov
EZE13:50Buenos Aires Ministro Pistarini
16h 50m
1 stop
LHR09:40London Heathrow
5 Dec
LHR16:30London Heathrow
30h 25m
1 stop
EZE19:55Buenos Aires Ministro Pistarini
£951
ITA Airways
22 Nov
EZE13:50Buenos Aires Ministro Pistarini
16h 50m
1 stop
LHR09:40London Heathrow
5 Dec
LHR16:30London Heathrow
30h 25m
1 stop
EZE19:55Buenos Aires Ministro Pistarini
£951
ITA Airways
7 Nov
EZE13:50Buenos Aires Ministro Pistarini
22h 50m
1 stop
LHR15:40London Heathrow
21 Nov
LHR16:30London Heathrow
30h 25m
1 stop
EZE19:55Buenos Aires Ministro Pistarini
£955

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 4 July 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

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Tue 3/11

11:50-06:30

2 stops39h 40m

London Heathrow

Fri 20/11

13:00-17:10

2 stops31h 10m

£946

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 8/11

14:00-11:20

2 stops42h 20m

London Heathrow

Tue 24/11

18:00-15:05

2 stops24h 05m

£946

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Fri 9/10

13:40-11:50

2 stops42h 10m

London Heathrow

Sat 31/10

13:00-17:10

2 stops31h 10m

£947
Fastest return journey

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 12/10

10:50-09:10

1 stop18h 20m

London Heathrow

Sun 25/10

21:40-15:50

1 stop21h 10m

£947

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 8/11

14:00-08:30

2 stops39h 30m

London Heathrow

Thu 26/11

13:00-15:05

3 stops29h 05m

£948

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 16/11

13:35-07:10

2 stops38h 35m

London Heathrow

Mon 30/11

15:00-17:10

2 stops29h 10m

£948

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Fri 11/12

13:35-07:10

2 stops38h 35m

London Heathrow

Tue 12/1

13:00-17:10

2 stops31h 10m

£949

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 12/8

16:35-10:00

3 stops37h 25m

London Heathrow

Wed 9/9

08:30-14:30

2 stops34h 00m

£949

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 22/11

13:50-09:40

1 stop16h 50m

London Heathrow

Sat 5/12

16:30-19:55

1 stop30h 25m

£951

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 22/11

13:50-09:40

1 stop16h 50m

London Heathrow

Sat 5/12

16:30-19:55

1 stop30h 25m

£951

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 £1,183 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 £997 on momondo.

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

There is only 1 cabin class 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 24% 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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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 £1,044Free CancellationRating
6.7
8,095 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 £1,044 round-trip. Over the 7 British Airways flights for this route in a normal week, average airfare is usually £1,302 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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Gatwick
Milton Keynes
Luton
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Southend-on-Sea
Slough
Northampton
Maidstone
Ipswich
Swindon
Ilford
Canterbury
Folkestone
Poole
Guildford
Hayes
Chichester
Hastings

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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