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Cheap flights from Buenos Aires to London from £443

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 13/6. 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.
Multiple Airlines Logo
23:55 - 09:50
EZE
-
LHR
29h 55m
2 stops
Multiple Airlines Logo
22:05 - 15:40
LHR
-
EZE
21h 35m
1 stop
£969Multiple Airlines
Thu, 7 May - Thu, 21 May
Multiple Airlines Logo
16:50 - 08:35
EZE
-
LHR
35h 45m
2 stops
Multiple Airlines Logo
08:30 - 14:30
LHR
-
EZE
34h 00m
2 stops
£970Multiple Airlines
Thu, 21 May - Fri, 5 Jun
Multiple Airlines Logo
16:50 - 11:50
EZE
-
LHR
39h 00m
2 stops
Multiple Airlines Logo
09:30 - 14:30
LHR
-
EZE
33h 00m
3 stops
£972Multiple Airlines
Tue, 22 Sep - Tue, 13 Oct
Air Canada Logo
16:35 - 06:35
EZE
-
LHR
34h 00m
2 stops
Air Canada Logo
14:05 - 14:30
LHR
-
EZE
52h 25m
3 stops
£973Air Canada
Mon, 14 Sep - Mon, 28 Sep
Multiple Airlines Logo
05:45 - 15:35
AEP
-
LHR
29h 50m
2 stops
Multiple Airlines Logo
22:05 - 05:40
LHR
-
AEP
35h 35m
1 stop
£974Multiple Airlines
Thu, 21 May - Wed, 27 May
TAP AIR PORTUGAL Logo
10:20 - 22:00
AEP
-
LHR
31h 40m
2 stops
TAP AIR PORTUGAL Logo
18:45 - 09:20
LHR
-
AEP
42h 35m
2 stops
£975TAP AIR PORTUGAL
Tue, 22 Sep - Tue, 13 Oct
TAP AIR PORTUGAL Logo
13:15 - 10:20
EZE
-
LHR
41h 05m
2 stops
TAP AIR PORTUGAL Logo
06:00 - 12:25
LHR
-
EZE
34h 25m
3 stops
£975TAP AIR PORTUGAL
Tue, 22 Sep - Tue, 13 Oct
LATAM Airlines Logo
17:00 - 15:05
AEP
-
LHR
18h 05m
1 stop
LATAM Airlines Logo
21:20 - 12:00
LHR
-
AEP
18h 40m
1 stop
£981LATAM Airlines
Thu, 11 Jun - Sun, 14 Jun
LATAM Airlines Logo
17:00 - 15:05
AEP
-
LHR
18h 05m
1 stop
LATAM Airlines Logo
21:20 - 12:00
LHR
-
AEP
18h 40m
1 stop
£985LATAM Airlines
Thu, 11 Jun - Fri, 12 Jun
Air Canada Logo
13:40 - 06:30
AEP
-
LHR
36h 50m
2 stops
Air Canada Logo
17:40 - 17:20
LHR
-
AEP
27h 40m
2 stops
£986Air Canada
Mon, 14 Sep - Mon, 21 Sep

Avianca flights from Buenos Aires to London Heathrow Airport

Our best Avianca deals on Buenos Aires to London Heathrow Airport flight tickets
Avianca
6 May
EZE16:50Buenos Aires Ministro Pistarini
18h 45m
1 stop
LHR15:35London Heathrow
27 May
LHR22:05London Heathrow
21h 35m
1 stop
EZE15:40Buenos Aires Ministro Pistarini
£1,014
Avianca
22 Sept
EZE07:10Buenos Aires Ministro Pistarini
28h 25m
1 stop
LHR15:35London Heathrow
13 Oct
LHR22:05London Heathrow
30h 20m
1 stop
EZE00:25Buenos Aires Ministro Pistarini
£1,021
Avianca
25 Apr
EZE06:10Buenos Aires Ministro Pistarini
53h 25m
2 stops
LHR15:35London Heathrow
28 Apr
LHR22:05London Heathrow
30h 20m
1 stop
EZE00:25Buenos Aires Ministro Pistarini
£1,024

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
8 Sept
EZE21:00Buenos Aires Ministro Pistarini
30h 40m
1 stop
LHR07:40London Heathrow
22 Sept
LHR14:50London Heathrow
45h 10m
2 stops
EZE08:00Buenos Aires Ministro Pistarini
£996
United Airlines
6 Apr
EZE21:00Buenos Aires Ministro Pistarini
34h 35m
1 stop
LHR11:35London Heathrow
28 Apr
LHR10:00London Heathrow
26h 00m
1 stop
EZE08:00Buenos Aires Ministro Pistarini
£1,027
United Airlines
6 Apr
EZE21:00Buenos Aires Ministro Pistarini
30h 55m
1 stop
LHR07:55London Heathrow
16 Apr
LHR10:00London Heathrow
26h 00m
1 stop
EZE08:00Buenos Aires Ministro Pistarini
£1,081

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 3 April 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

Thu 7/5

23:55-09:50

2 stops29h 55m

London Heathrow

Thu 21/5

22:05-15:40

1 stop21h 35m

£969

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 21/5

16:50-08:35

2 stops35h 45m

London Heathrow

Fri 5/6

08:30-14:30

2 stops34h 00m

£970

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Tue 22/9

16:50-11:50

2 stops39h 00m

London Heathrow

Tue 13/10

09:30-14:30

3 stops33h 00m

£972

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 14/9

16:35-06:35

2 stops34h 00m

London Heathrow

Mon 28/9

14:05-14:30

3 stops52h 25m

£973

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 21/5

05:45-15:35

2 stops29h 50m

London Heathrow

Wed 27/5

22:05-05:40

1 stop35h 35m

£974

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Tue 22/9

10:20-22:00

2 stops31h 40m

London Heathrow

Tue 13/10

18:45-09:20

2 stops42h 35m

£975

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Tue 22/9

13:15-10:20

2 stops41h 05m

London Heathrow

Tue 13/10

06:00-12:25

3 stops34h 25m

£975
Fastest return journey

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 11/6

17:00-15:05

1 stop18h 05m

London Heathrow

Sun 14/6

21:20-12:00

1 stop18h 40m

£981

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 11/6

17:00-15:05

1 stop18h 05m

London Heathrow

Fri 12/6

21:20-12:00

1 stop18h 40m

£985

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 14/9

13:40-06:30

2 stops36h 50m

London Heathrow

Mon 21/9

17:40-17:20

2 stops27h 40m

£986

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 £860. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Buenos Aires averaging around £996.

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 £1,272 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 £1,007 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 8% 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 £1,015Free CancellationRating
6.7
7,848 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 £1,015 round-trip. Over the 7 British Airways flights for this route in a normal week, average airfare is usually £1,631 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
Luton
Gatwick
Stratford-upon-Avon
Slough
Maidstone
Northampton
Swindon
Southend-on-Sea
Wembley
Ipswich
Canterbury
Ilford
Guildford
Hayes
Chelmsford
Poole
Dover
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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