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Cheap flights from London to Buenos Aires from €533

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Buenos Aires departing on 26/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London to Buenos Aires

Cheap return flights

Avianca Logo
22:05 - 00:10LHR-EZE
30h 05m1 stop
Avianca Logo
01:40 - 15:35EZE-LHR
33h 55m1 stop
€783Avianca
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Sun, 7 Sep - Sun, 21 Sep
Avianca Logo
22:05 - 00:10LHR-EZE
30h 05m1 stop
Avianca Logo
01:40 - 15:35EZE-LHR
33h 55m1 stop
€805Avianca
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Sun, 7 Sep - Sun, 21 Sep
Lufthansa Logo
15:30 - 06:25LHR-EZE
18h 55m1 stop
Lufthansa Logo
16:40 - 12:40EZE-LHR
16h 00m1 stop
€830Lufthansa
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Mon, 8 Sep - Mon, 6 Oct
Lufthansa Logo
17:00 - 06:25LCY-EZE
17h 25m1 stop
Lufthansa Logo
16:40 - 16:25EZE-LCY
19h 45m1 stop
€851Lufthansa
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Mon, 8 Sep - Mon, 6 Oct
Turkish Airlines Logo
06:25 - 22:25LGW-EZE
43h 00m2 stops
Turkish Airlines Logo
23:55 - 22:35EZE-LGW
43h 40m2 stops
€877Turkish Airlines
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Tue, 2 Dec - Tue, 16 Dec
United Airlines Logo
07:40 - 08:20LHR-EZE
27h 40m2 stops
United Airlines Logo
23:55 - 10:25EZE-LHR
31h 30m2 stops
€902United Airlines
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Mon, 27 Oct - Mon, 10 Nov
United Airlines Logo
08:00 - 06:20LHR-EZE
25h 20m2 stops
United Airlines Logo
23:55 - 09:40EZE-LHR
30h 45m2 stops
€909United Airlines
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Tue, 28 Oct - Mon, 10 Nov
Turkish Airlines Logo
06:35 - 22:25LHR-EZE
42h 50m2 stops
Turkish Airlines Logo
23:55 - 22:25EZE-LHR
43h 30m2 stops
€913Turkish Airlines
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Tue, 2 Dec - Tue, 16 Dec
Air Europa Logo
10:00 - 08:50LGW-EZE
25h 50m1 stop
Air Europa Logo
13:15 - 16:25EZE-LGW
24h 10m1 stop
€1,112Air Europa
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Mon, 26 Jan - Sun, 8 Feb
Air Europa Logo
17:25 - 08:50LGW-EZE
18h 25m1 stop
Air Europa Logo
13:15 - 09:00EZE-LGW
16h 45m1 stop
€1,121Air Europa
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Mon, 26 Jan - Tue, 3 Feb

Lufthansa flights from London to Buenos Aires

Our best Lufthansa deals on London to Buenos Aires flight tickets
Lufthansa
8 Sept
LHR15:30London Heathrow
18h 55m
1 stop
EZE06:25Buenos Aires Ministro Pistarini
6 Oct
EZE16:40Buenos Aires Ministro Pistarini
16h 00m
1 stop
LHR12:40London Heathrow
€830
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Lufthansa
8 Sept
LCY17:00London City
17h 25m
1 stop
EZE06:25Buenos Aires Ministro Pistarini
6 Oct
EZE16:40Buenos Aires Ministro Pistarini
19h 45m
1 stop
LCY16:25London City
€851
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Lufthansa
10 Sept
LHR16:30London Heathrow
17h 55m
1 stop
EZE06:25Buenos Aires Ministro Pistarini
6 Oct
EZE16:40Buenos Aires Ministro Pistarini
19h 00m
1 stop
LHR15:40London Heathrow
€881
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Turkish Airlines flights from London to Buenos Aires

Our best Turkish Airlines deals on London to Buenos Aires flight tickets
Turkish Airlines
2 Dec
LGW06:25London Gatwick
43h 00m
2 stops
EZE22:25Buenos Aires Ministro Pistarini
16 Dec
EZE23:55Buenos Aires Ministro Pistarini
43h 40m
2 stops
LGW22:35London Gatwick
€877
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Turkish Airlines
2 Dec
LHR06:35London Heathrow
42h 50m
2 stops
EZE22:25Buenos Aires Ministro Pistarini
16 Dec
EZE23:55Buenos Aires Ministro Pistarini
43h 30m
2 stops
LHR22:25London Heathrow
€913
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momondo Fare Finder

 
Customise your flight search to find flights from London to Buenos Aires 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 13,528 searches. Data last updated 1 August 2025.
Use the filters below to find and compare flights from London to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 7/9

22:05-00:10

1 stop30h 05m

Buenos Aires Ministro Pistarini

Sun 21/9

01:40-15:35

1 stop33h 55m

€783

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 7/9

22:05-00:10

1 stop30h 05m

Buenos Aires Ministro Pistarini

Sun 21/9

01:40-15:35

1 stop33h 55m

€805

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 8/9

15:30-06:25

1 stop18h 55m

Buenos Aires Ministro Pistarini

Mon 6/10

16:40-12:40

1 stop16h 00m

€830

LondonBuenos Aires

LCY - EZE

LCYEZE

London City

Mon 8/9

17:00-06:25

1 stop17h 25m

Buenos Aires Ministro Pistarini

Mon 6/10

16:40-16:25

1 stop19h 45m

€851

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Tue 2/12

06:25-22:25

2 stops43h 00m

Buenos Aires Ministro Pistarini

Tue 16/12

23:55-22:35

2 stops43h 40m

€877

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 27/10

07:40-08:20

2 stops27h 40m

Buenos Aires Ministro Pistarini

Mon 10/11

23:55-10:25

2 stops31h 30m

€902

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Tue 28/10

08:00-06:20

2 stops25h 20m

Buenos Aires Ministro Pistarini

Mon 10/11

23:55-09:40

2 stops30h 45m

€909

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Tue 2/12

06:35-22:25

2 stops42h 50m

Buenos Aires Ministro Pistarini

Tue 16/12

23:55-22:25

2 stops43h 30m

€913

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Mon 26/1

10:00-08:50

1 stop25h 50m

Buenos Aires Ministro Pistarini

Sun 8/2

13:15-16:25

1 stop24h 10m

€1,112

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Mon 26/1

17:25-08:50

1 stop18h 25m

Buenos Aires Ministro Pistarini

Tue 3/2

13:15-09:00

1 stop16h 45m

€1,121

Flights are sorted by cheapest return flights first.

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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from London to Buenos Aires

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 London and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

In general, March is the cheapest month to fly from London to Buenos Aires. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €974. If you aren’t able to travel to Buenos Aires during the month of March, then flying in November is also cheap. Prices for this month can be found on momondo for an average of €979.

What is the cheapest day to depart on your flight to Buenos Aires?

According to our data, Monday is the cheapest day to fly to Buenos Aires from London. The lowest ticket price found for a Monday departure recently was €785. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Buenos Aires is Thursday, with ticket prices averaging around €1,786.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our data shows that the cheapest London to Buenos Aires flights are usually those with departure times in the afternoon. Our users have found flights to Buenos Aires in the afternoon for as low as €776. In contrast, the most expensive time of day to depart to Buenos Aires is in the evening when prices are around €1,078.

How far in advance should I book a flight to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around €1,172 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from London for as low as €1,061 on momondo.

How have London to Buenos Aires flight prices changed over time?

As of August 2025, prices for London to Buenos Aires flights are approximately 17% more expensive when compared to flights at the same time last year.

When to book flights from London to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from London to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Buenos Aires (LON to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Buenos Aires

Best price found

€533

Fastest flight time

15h 40m

Direct flights

None

Airports in Buenos Aires

2 airports
The best one-way flight to Buenos Aires from London in the past 72 hours is €533. The best return flight deal from London to Buenos Aires found on momondo in the last 72 hours is €783.
The fastest flight from London to Buenos Aires takes 15h 40m
There are no direct flights from London to Buenos Aires. Popular non-direct routes for this connection are London Gatwick Airport - Buenos Aires Ministro Pistarini Airport, London Heathrow Airport - Buenos Aires Jorge Newbery Airport and London Heathrow Airport - Buenos Aires Ministro Pistarini Airport.
There are 2 airports near Buenos Aires: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP)
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  • How far is London to Buenos Aires by plane?

    London and Buenos Aires are 11120.2 km apart from one another. By plane, this route typically takes 15h 40m.

  • When did momondo last update prices for flights from London to Buenos Aires?

    Prices for flights from London to Buenos Aires were last updated today.

  • How old do you have to be to fly from London to Buenos Aires?

    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 London to Buenos Aires.

  • What documentation or ID do you need to fly to Buenos Aires?

    The necessary travel and health documents for your Buenos Aires 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 licence 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 London to Buenos Aires?

  • What is the most popular airline from London to Buenos Aires?

Why use momondo?

Why should I use momondo to find a flight deal from London to Buenos Aires?

Finding the right flight to Buenos Aires from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

Can I find flights from London to Buenos Aires with flexible booking policies on momondo?

Yes. All flights to Buenos Aires from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Buenos Aires?

momondo provides multiple filters to help you find the best flight to Buenos Aires from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to Buenos Aires right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Buenos Aires from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 27.4 km from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport