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Cheap flights from Buenos Aires to London from £461

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 8/12. 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

Avianca Logo
01:40 - 15:35EZE-LHR
33h 55m1 stop
Avianca Logo
22:05 - 00:10LHR-EZE
30h 05m1 stop
£957Avianca
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Mon, 29 Sep - Wed, 22 Oct
GOL Logo
03:15 - 14:25AEP-LHR
32h 10m2 stops
GOL Logo
19:25 - 02:20LHR-AEP
33h 55m2 stops
£958GOL
Find Deal
Thu, 30 Oct - Fri, 7 Nov
LATAM Airlines Logo
07:10 - 14:05EZE-LHR
27h 55m1 stop
LATAM Airlines Logo
19:40 - 09:15LHR-EZE
40h 35m2 stops
£958LATAM Airlines
Find Deal
Tue, 2 Dec - Sat, 17 Jan
LATAM Airlines Logo
11:30 - 14:20AEP-LHR
23h 50m2 stops
LATAM Airlines Logo
21:20 - 17:00LHR-AEP
23h 40m1 stop
£958LATAM Airlines
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Thu, 26 Feb - Thu, 2 Apr
Air Canada Logo
16:35 - 11:50EZE-LHR
39h 15m2 stops
Air Canada Logo
13:25 - 15:10LHR-EZE
28h 45m2 stops
£958Air Canada
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Wed, 15 Oct - Fri, 14 Nov
Multiple Airlines Logo
03:15 - 16:50AEP-LHR
34h 35m2 stops
Multiple Airlines Logo
20:15 - 17:20LHR-AEP
24h 05m1 stop
£960Multiple Airlines
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Thu, 30 Oct - Fri, 7 Nov
Multiple Airlines Logo
09:00 - 13:40AEP-LHR
24h 40m2 stops
Multiple Airlines Logo
08:15 - 06:40LHR-AEP
25h 25m2 stops
£964Multiple Airlines
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Sat, 25 Oct - Mon, 3 Nov
Air Canada Logo
16:45 - 11:20EZE-LHR
39h 35m2 stops
Air Canada Logo
09:30 - 14:30LHR-EZE
33h 00m3 stops
£968Air Canada
Find Deal
Mon, 2 Mar - Sun, 5 Apr
Iberia Logo
13:00 - 14:55EZE-LHR
22h 55m2 stops
Iberia Logo
20:10 - 16:20LHR-EZE
24h 10m1 stop
£976Iberia
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Mon, 9 Mar - Wed, 8 Apr
Iberia Logo
19:30 - 17:15EZE-LHR
18h 45m1 stop
Iberia Logo
20:10 - 20:00LHR-EZE
27h 50m1 stop
£1,009Iberia
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Wed, 25 Feb - Wed, 1 Apr

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
15 Oct
EZE16:35Buenos Aires Ministro Pistarini
39h 15m
2 stops
LHR11:50London Heathrow
14 Nov
LHR13:25London Heathrow
28h 45m
2 stops
EZE15:10Buenos Aires Ministro Pistarini
£958
Find similar
Air Canada
2 Mar
EZE16:45Buenos Aires Ministro Pistarini
39h 35m
2 stops
LHR11:20London Heathrow
5 Apr
LHR09:30London Heathrow
33h 00m
3 stops
EZE14:30Buenos Aires Ministro Pistarini
£968
Find similar
Air Canada
2 Mar
EZE16:45Buenos Aires Ministro Pistarini
39h 35m
2 stops
LHR11:20London Heathrow
3 Apr
LHR15:50London Heathrow
26h 40m
2 stops
EZE14:30Buenos Aires Ministro Pistarini
£980
Find similar

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
9 Nov
EZE22:25Buenos Aires Ministro Pistarini
29h 25m
1 stop
LHR06:50London Heathrow
9 Feb
LHR11:55London Heathrow
22h 10m
1 stop
EZE07:05Buenos Aires Ministro Pistarini
£983
Find similar
American Airlines
25 Dec
EZE10:10Buenos Aires Ministro Pistarini
22h 20m
1 stop
LHR11:30London Heathrow
4 Mar
LHR14:30London Heathrow
21h 30m
1 stop
EZE09:00Buenos Aires Ministro Pistarini
£983
Find similar
American Airlines
30 Jan
EZE10:10Buenos Aires Ministro Pistarini
22h 20m
1 stop
LHR11:30London Heathrow
16 Feb
LHR17:00London Heathrow
20h 50m
1 stop
EZE10:50Buenos Aires Ministro Pistarini
£998
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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 17 September 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

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 29/9

01:40-15:35

1 stop33h 55m

London Heathrow

Wed 22/10

22:05-00:10

1 stop30h 05m

£957

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 30/10

03:15-14:25

2 stops32h 10m

London Heathrow

Fri 7/11

19:25-02:20

2 stops33h 55m

£958

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Tue 2/12

07:10-14:05

1 stop27h 55m

London Heathrow

Sat 17/1

19:40-09:15

2 stops40h 35m

£958

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 26/2

11:30-14:20

2 stops23h 50m

London Heathrow

Thu 2/4

21:20-17:00

1 stop23h 40m

£958

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 15/10

16:35-11:50

2 stops39h 15m

London Heathrow

Fri 14/11

13:25-15:10

2 stops28h 45m

£958

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 30/10

03:15-16:50

2 stops34h 35m

London Heathrow

Fri 7/11

20:15-17:20

1 stop24h 05m

£960

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Sat 25/10

09:00-13:40

2 stops24h 40m

London Heathrow

Mon 3/11

08:15-06:40

2 stops25h 25m

£964

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 2/3

16:45-11:20

2 stops39h 35m

London Heathrow

Sun 5/4

09:30-14:30

3 stops33h 00m

£968

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 9/3

13:00-14:55

2 stops22h 55m

London Heathrow

Wed 8/4

20:10-16:20

1 stop24h 10m

£976

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 25/2

19:30-17:15

1 stop18h 45m

London Heathrow

Wed 1/4

20:10-20:00

1 stop27h 50m

£1,009

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 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 £977. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Buenos Aires averaging around £987.

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

On average, the least expensive day to fly to London Heathrow Airport from Buenos Aires is on a Monday. momondo users have found tickets for Monday departures for as low as £1,123. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Thursday is £1,623.

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 £1,031. 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 in the morning when prices are £1,539 on average. Flights to London Heathrow Airport from Buenos Aires in the morning 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 £1,279 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 £1,104 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 11% 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 40m

Direct flights

Every day
The fastest flight from Buenos Aires to London Heathrow Airport takes 15h 40m
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 25m 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
Air FrancePriceFrom £808Free CancellationRating
7.4
1,468 reviews
Search Air France flights
IberiaPriceFrom £932Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
LATAM AirlinesPriceFrom £997Free CancellationRating
7.5
1,847 reviews
Search LATAM Airlines flights
British AirwaysPriceFrom £1,004Free CancellationRating
6.7
7,363 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 £1,370 round-trip. Over the 6 British Airways flights for this route in a normal week, average airfare is usually £1,786 round-trip - but some users have found much cheaper deals with momondo.

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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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