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Cheap flights from London Heathrow Airport to Buenos Aires from £369

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 Heathrow Airport to Buenos Aires departing on 27/4. 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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0 bags

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Find the cheapest flights from London Heathrow Airport to Buenos Aires

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from London Heathrow Airport to Buenos Aires.
22:05 - 15:20LHR-EZE
21h 15m1 stop
16:45 - 15:35EZE-LHR
18h 50m1 stop
£766Avianca
Find Deal
Wed, 14 May - Tue, 27 May
22:05 - 15:20LHR-EZE
21h 15m1 stop
16:45 - 15:35EZE-LHR
18h 50m1 stop
£769Avianca
Find Deal
Mon, 5 May - Tue, 20 May
22:10 - 10:35LHR-EZE
16h 25m1 stop
14:20 - 09:15EZE-LHR
15h 55m1 stop
£805Iberia
Find Deal
Fri, 29 Aug - Sat, 29 Nov
21:20 - 10:30LHR-AEP
17h 10m1 stop
18:20 - 15:05AEP-LHR
16h 45m1 stop
£825LATAM Airlines
Find Deal
Wed, 14 May - Wed, 21 May
17:30 - 06:25LHR-EZE
16h 55m1 stop
16:40 - 19:40EZE-LHR
23h 00m2 stops
£843Lufthansa
Find Deal
Wed, 7 May - Wed, 28 May
18:45 - 10:30LHR-AEP
19h 45m2 stops
18:20 - 15:05AEP-LHR
16h 45m1 stop
£844LATAM Airlines
Find Deal
Wed, 14 May - Wed, 21 May
22:00 - 10:35LHR-EZE
16h 35m1 stop
21:30 - 19:10EZE-LHR
17h 40m1 stop
£850Iberia
Find Deal
Mon, 1 Sep - Tue, 30 Sep
07:25 - 06:25LHR-EZE
27h 00m2 stops
16:40 - 17:05EZE-LHR
20h 25m2 stops
£860Lufthansa
Find Deal
Wed, 7 May - Wed, 28 May
21:55 - 10:35LHR-EZE
16h 40m1 stop
13:00 - 11:50EZE-LHR
18h 50m1 stop
£875British Airways
Find Deal
Sat, 17 May - Thu, 5 Jun
21:55 - 10:35LHR-EZE
16h 40m1 stop
12:15 - 08:10EZE-LHR
15h 55m1 stop
£875British Airways
Find Deal
Thu, 29 May - Tue, 24 Jun

Lufthansa flights from London Heathrow Airport to Buenos Aires

Our best Lufthansa deals on London Heathrow Airport to Buenos Aires flight tickets
Lufthansa
7 May
LHR17:30London Heathrow
16h 55m
1 stop
EZE06:25Buenos Aires Ministro Pistarini
28 May
EZE16:40Buenos Aires Ministro Pistarini
23h 00m
2 stops
LHR19:40London Heathrow
Lufthansa
7 May
LHR07:25London Heathrow
27h 00m
2 stops
EZE06:25Buenos Aires Ministro Pistarini
28 May
EZE16:40Buenos Aires Ministro Pistarini
20h 25m
2 stops
LHR17:05London Heathrow
Lufthansa
5 May
LHR07:25London Heathrow
27h 00m
2 stops
EZE06:25Buenos Aires Ministro Pistarini
28 May
EZE16:40Buenos Aires Ministro Pistarini
20h 25m
2 stops
LHR17:05London Heathrow

British Airways flights from London Heathrow Airport to Buenos Aires

Our best British Airways deals on London Heathrow Airport to Buenos Aires flight tickets
British Airways
17 May
LHR21:55London Heathrow
16h 40m
1 stop
EZE10:35Buenos Aires Ministro Pistarini
5 Jun
EZE13:00Buenos Aires Ministro Pistarini
18h 50m
1 stop
LHR11:50London Heathrow
British Airways
29 May
LHR21:55London Heathrow
16h 40m
1 stop
EZE10:35Buenos Aires Ministro Pistarini
24 Jun
EZE12:15Buenos Aires Ministro Pistarini
15h 55m
1 stop
LHR08:10London Heathrow
British Airways
8 Jun
LHR21:55London Heathrow
16h 40m
1 stop
EZE10:35Buenos Aires Ministro Pistarini
25 Jun
EZE21:30Buenos Aires Ministro Pistarini
17h 40m
1 stop
LHR19:10London Heathrow

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from London Heathrow Airport 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 cheapest month to fly to Buenos Aires?

In general, May is the cheapest month to fly from London Heathrow Airport to Buenos Aires. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £861. If you don’t want to visit Buenos Aires in May, then you should wait until January to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £867.

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

The cheapest day to depart on your flight to Buenos Aires is on a Wednesday when prices can be found for as low as £978. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,137.

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

Our most recent data shows that the best time of day to fly to Buenos Aires is in the afternoon. Flights from London Heathrow Airport to Buenos Aires during this time can be as low as £853. Flights to Buenos Aires are more costly in the evening, with an average ticket price of £1,057. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London Heathrow to Buenos Aires flight route?

Fly from London Heathrow to Buenos Aires Ministro Pistarini for the best London Heathrow - Buenos Aires flight prices

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 Heathrow Airport when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around £1,006 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from London Heathrow Airport for as low as £863 on momondo.

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

There are 2 cabin classes available to choose from on London Heathrow to Buenos Aires flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of March 2025, prices for London Heathrow Airport to Buenos Aires flights are approximately 4% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Buenos Aires

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

Cheap London Heathrow Airport to Buenos Aires (LHR to BUE) flight deals and tips

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

Best price found

£369

Fastest flight time

16h 00m

Direct flights

Every day

Airports in Buenos Aires

2 airports
The best one-way flight to Buenos Aires from London Heathrow Airport in the past 72 hours is £369. The best return flight deal from London Heathrow Airport to Buenos Aires found on momondo in the last 72 hours is £766.
The fastest flight from London Heathrow Airport to Buenos Aires takes 16h 00m
Direct flights go from London Heathrow Airport to Buenos Aires every day.
There are 2 airports near Buenos Aires: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP)

  • How far is London Heathrow to Buenos Aires by plane?

    Buenos Aires is 6898.3 mi away from London Heathrow. In terms of flight time, this usually takes a little over 16h 00m.

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

    Prices for flights from London Heathrow Airport to Buenos Aires are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Buenos Aires?

  • How old do you have to be to fly from London Heathrow Airport 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 Heathrow Airport to Buenos Aires.

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

    The travel and health documents you'll need for your trip to Buenos Aires may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Buenos Aires?

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


Best airlines flying from London Heathrow Airport to Buenos Aires

Compare and see reviews for airlines that fly from London Heathrow Airport to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom £463Free CancellationRating
7.4
1,425 reviews
Search Air France flights
Air CanadaPriceFrom £668Free CancellationRating
7.0
9,012 reviews
Search Air Canada flights
LufthansaPriceFrom £716Free CancellationRating
6.7
6,961 reviews
Search Lufthansa flights
IberiaPriceFrom £720Free CancellationRating
7.0
2,653 reviews
Search Iberia flights
FinnairPriceFrom £764Free CancellationRating
7.6
1,267 reviews
Search Finnair flights
British AirwaysPriceFrom £780Free CancellationRating
6.6
6,713 reviews
Search British Airways flights
KLMPriceFrom £866Free CancellationRating
7.8
1,321 reviews
Search KLM flights
LATAM AirlinesPriceFrom £899Free CancellationRating
7.5
1,754 reviews
Search LATAM Airlines flights
  • Iberia Flights From London Heathrow Airport to Buenos Aires

    Iberia flies from London Heathrow Airport to Buenos Aires around 6 times per week, with 2,653 momondo users rating the airline 7.0/10. The cheapest Iberia deal from London Heathrow Airport to Buenos Aires in the last 72 hours was £932 (round-trip), much lower than the average airfare cost of £1,168 for Iberia flights on this route.

  • British Airways Flights From London Heathrow Airport to Buenos Aires

    British Airways is also a popular choice for this route. British Airways flight deals for London Heathrow Airport to Buenos Aires start from as low as £1,010 round-trip, depending on your selected dates, with average British Airways deals seen on momondo around £1,358. British Airways operates 6 flights to Buenos Aires from London Heathrow Airport in an average week. Users have rated it 6.6/10 across 6,713 reviews.


Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Buenos Aires . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Buenos Aires from London with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Buenos Aires.

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

Of course. momondo tracks the price of London to Buenos Aires flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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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 17.0 mi from Buenos Aires