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LHR - BUE

£386 Find cheap flights from London Heathrow Airport to Buenos Aires

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Buenos Aires departing on 27/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 4/6
Tue 11/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Buenos Aires.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Buenos Aires.
In the last 7 days, travellers have searched 42,830,901 times on KAYAK, and here's why:

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Cheap flight deals from Heathrow to Buenos Aires (LHR-BUE)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow to Buenos Aires that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
18:00 - 14:50LHR-EZE
24h 50m2 stops
16:25 - 06:35EZE-LHR
34h 10m2 stops
£734Air Canada
Find Deal
Tue, 1 Oct - Wed, 16 Oct
19:30 - 14:50LHR-EZE
47h 20m3 stops
16:25 - 11:50EZE-LHR
39h 25m2 stops
£773Air Canada
Find Deal
Mon, 23 Sep - Mon, 30 Sep
17:30 - 06:25LHR-EZE
16h 55m1 stop
16:45 - 12:40EZE-LHR
15h 55m1 stop
£781Lufthansa
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Tue, 10 Sep - Tue, 24 Sep
17:30 - 06:25LHR-EZE
16h 55m1 stop
16:45 - 15:40EZE-LHR
18h 55m1 stop
£790Lufthansa
Find Deal
Tue, 9 Jul - Sun, 21 Jul
20:10 - 16:25LHR-EZE
24h 15m1 stop
12:45 - 09:30EZE-LHR
16h 45m1 stop
£805Iberia
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Wed, 9 Oct - Thu, 17 Oct
19:20 - 10:00LHR-EZE
18h 40m1 stop
12:05 - 07:50EZE-LHR
15h 45m1 stop
£834British Airways
Find Deal
Sun, 16 Jun - Sun, 23 Jun
17:00 - 10:00LHR-EZE
21h 00m1 stop
20:50 - 09:25EZE-LHR
32h 35m1 stop
£838British Airways
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Sat, 5 Oct - Sun, 20 Oct
21:20 - 00:45LHR-EZE
31h 25m1 stop
06:10 - 15:05EZE-LHR
28h 55m1 stop
£842LATAM Airlines
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Tue, 4 Jun - Tue, 11 Jun
21:20 - 10:00LHR-AEP
16h 40m1 stop
22:50 - 15:05AEP-LHR
36h 15m1 stop
£873LATAM Airlines
Find Deal
Tue, 4 Jun - Tue, 11 Jun
20:10 - 16:25LHR-EZE
24h 15m1 stop
12:45 - 08:25EZE-LHR
15h 40m1 stop
£886Iberia
Find Deal
Fri, 20 Sep - Fri, 11 Oct

Flights from Heathrow to Buenos Aires - Travel Insights & Trends

Get data-powered insights and trends into flights from Heathrow to Buenos Aires to help you find the cheapest flights, the best time to fly and much more.

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

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from London Heathrow Airport to Buenos Aires.
Our data shows that the cheapest route for a one-way flight from London Heathrow Airport to Buenos Aires cost £717 and was between London Heathrow Airport and Buenos Aires Ministro Pistarini Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is £870.

What’s the cheapest day of the week to fly from London Heathrow Airport to Buenos Aires?

The average price of all flights from London Heathrow Airport to Buenos Aires clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Buenos Aires on a Wednesday and more expensive on a Sunday. On your return trip to London Heathrow Airport, you should consider flying back on a Thursday, and avoid Saturdays for better deals.

What is the cheapest month to fly from London Heathrow Airport to Buenos Aires?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from London Heathrow Airport to Buenos Aires, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London Heathrow Airport to Buenos Aires is April, where tickets cost £855 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is £1,250 and £1,139 respectively.

How far in advance should I book a flight from London Heathrow Airport to Buenos Aires?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from London Heathrow Airport to Buenos Aires, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from London Heathrow Airport to Buenos Aires, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 29 days before departure.

Which airlines provide the cheapest flights from London Heathrow Airport to Buenos Aires?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Aeromexico (£475) and Avianca (£479). The cheapest round-trip tickets were found on Air Canada (£734) and Lufthansa (£781).

Which cabin class options are there for flights between London Heathrow Airport and Buenos Aires?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 2 cabin class options for the route. These are Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from London Heathrow Airport to Buenos Aires take?

There are no direct flights for this route listed on KAYAK. The shortest multi-flight duration is 16h 25m.

Good to know - Cheap tickets from London Heathrow Airport to Buenos Aires

Low season

June

High season

December

Cheapest flight

£386
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (29% more expensive on average)
Flight from London Heathrow Airport to Buenos Aires Ministro Pistarini

When to book flights from Heathrow to Buenos Aires

Are your dates flexible? Find out the best times to travel from Heathrow to Buenos Aires based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Buenos Aires flights

  • What is the cheapest flight from London Heathrow Airport to Buenos Aires?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Buenos Aires was £484 for a one-way ticket and £921 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to Buenos Aires?

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at one of these airports: Buenos Aires Jorge Newbery or Buenos Aires Ministro Pistarini.

  • Which aircraft models fly most regularly from London Heathrow Airport to Buenos Aires?

    The Boeing 777 is the aircraft model that flies most regularly on the London Heathrow Airport to Buenos Aires flight route.

  • Which airline alliances offer flights from London Heathrow Airport to Buenos Aires?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between London Heathrow Airport and Buenos Aires, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from London to Buenos Aires, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from London to Buenos Aires are Delta and KLM. With an average price for the route of £815 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of £1,434 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Buenos Aires?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Buenos Aires.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Buenos Aires?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Buenos Aires?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Buenos Aires with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Buenos Aires?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buenos Aires from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from London Heathrow Airport to Buenos Aires

  • Looking for a cheap flight from Buenos Aires to London Heathrow Airport? 25% of our users found flights on this route for £792 or less one-way and £960 or less round-trip.

Top 5 airlines serving from Heathrow to Buenos Aires

 
See real verified KAYAK customer reviews for airlines flying from London to Buenos Aires. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Buenos Aires? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
FinnairOverall score based on 1381 reviews
7.0Entertainment
7.8Boarding
6.9Food
8.2Crew
7.6Comfort
Airline reviews

All good- I love BA and the professionalism of the crew and pilots.

8.0 ExcellentAnonymous, Apr 2024JFK - LHR
Read more about Finnair reviews

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

I booked the flight with Finnair, which made the arrangements for downloading a boarding pass unnecessarily complicated. I wouldn't do that again. Instead I'd book direct with AA.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Had a nice flight to London on BA will fly with them again in the future

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

Helpful steward. Allowed me to move to some empty seats and I was able to get some sleep. He also had milk for my tea. Americans don’t realise that cream or half and half ruin tea.

I do not speak Spanish or read in Spanish When asking for help, people were hard to find they spoke quickly and pointed a lot directions for where to go and what to do we’re unclear. Which made my traveling uneasy.

Flight from Lima to São Paulo didn’t have USB plug to charge the cellphone.

It was ok for the most part, it is missing something

The flight was overbooked and the solution gave was unrespctful. I arrived 4 hour in advance in the airport and only after 2hous was possible suggest a different ticket with another company LATAM, I have accepted, but when I was checking in at LATAM the tickets was issued without luggage, what it is absurd since I have bought my tickets including it since the beginning. Due to the timing for the next flight was not possible return to Avianca to claim due to the distance between Both companies Avianca and Latam since were located in different terminals. I have insiste to the crew of Latam to call Avianca to solve it, but they could help they were alleging that only paying a thousand pesos Mexicans ($1,000 MXN) to dispatch my luggage would be accepted and I have no money at all. So I had to beg for others passagens, it was an humiliating to exchange luggage with who was platinum in order to return back the luggage in the connection airport in Brazil (GRU). I have no clue that a judicial process would be taken from my side due the lots of stress in sequence by the non professional treatment with a passenger that was just following everything said by Avianca.. Long hours of waiting until next flight and only arrive at final destine in 6hs later..

Cons: "The flight was full and all seats were taken. It means it was impossible to maintain the required and necessary social distancing."
Pros: "Muito confortável. Boarding muito rápido. Muito bem atendido a bordo."
Cons: "Infelizmente o serviço de bordo não pode ser apreciado, mas entendo que é pela segurança dos passageiros."
Pros: "The crew was great"
Cons: "They should be on time but we left 30 minutes later."
Cons: "Boarding was very confusing. The waiting area was filled with people milling around, trying to find their line."
Cons: "Would not let us board with 25 minutes prior to departure Because they lock their doors 35 minutes prior"
Pros: "The free middle seat because the flight was not full."
Cons: "Bigger glass for wine"

The only comment I have is why do you sell snacks on board? They should be free. When we take domestic flights here in US, our snacks are free. Also, please communicate with me in English. I received so many emails way before my flight that were in Spanish that I had to ask my son to interpret for me. You should be WELL AWARE if the customers you are communicating speak the language, it does mean that we speak and understand Spanish because we are traveling to Spain, NOT NECESSARILY! Thank you!

Fast check in, easy to navigate, crew were very good, the plane was delayed due to a previous flight and I found the cleanliness a little lacking but overall it was fine

I would not fly with BA again. Packed in like sardines, constant request to turn down air conditioning due to freezing cold for hours and the food was pretty to look at but tasteless!

Iberia personnel on the ground is so rude. I would think twice in the future before booking another Iberia flight

Pros: they tried to accommodate bc they forgot my gluten free meal Negatives: The flight was freeeeeezing Iberia didn’t communicate my gluten free meal

Both flights were delayed. I lost my connection on the way back. No voucher or anything was givenx I had business ticket and no support to make it on time. I got to the door running 5 min after they close. Food really bad. Breakfast in business was worst that I what I remember in economy. Even though I have accumulated many miles, I don’t think Inwill keep buying Iberia. I am a frequent business traveler.

Appalling! The flight was delayed by 3.5 hours and the American Airlines staff at the airport where nit very helpful. Once boarded, the flight crew were unhelpful, the food was poor and the aircraft was tatty.

Overall not great . We had a 4 four hour plus delay on returning and communication about the changes was poor . No updates were given on the website or by e-mail . We subsequently missed a connection , were our on a later flight and then missed all public transport for our onward journey home. Needed to hire a car at some expense . One member if staff was rude at the gate

The food is really eco only level. Breakfast was shameful. I am considering to stop flying with Iberia. Business prices are as expensive as other companies with much better service.

Late boarding. Delayed departure leading to rushed connection at Madrid Barajas. Not necessarily Iberia's fault but delay loading cargo didn't help.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

I was at the airport on time , I checked in my luggage . The plane was delayed and the gate was change. The flight board did not give information . I did not get chance to fly. I am going to make a claim for it

Never flown with LH before so all in all wasba good experience. Also good to know that approx 24hrs prior the flight opens up for being able to organise the seating free.

It was a short flight, no real service (which is okay). Very bumpy because of weather.

I'm Canaadian. I hate Air Canada. I used to give them a pass on their international service. No longer, They suck across the board now! Old planes, exhausted staff bad food and shitty entertainment. Your seats need reupholstered! Start with that...

Good experience. Food was great and passengers helped rearrange seats so our family could be seated together

It was timely boarding, well organized. The food was weird in a flight to Buenos Aires. I felt as if I were flying to Asia because of the chicken teriyaki. In my section flight attendants spoke only German and English. I wondered why no Spanish speaker was hired for a flight to Latam. In that Lufthansa needs to be more customer oriented. Compared to other airlines the four seat in the middle is less comfortable. That said, staff was polite and efficient, the entertainment system worked well. It was ultimately a peaceful, well organized and safe flight. Thank you !

Great flight. Left on time, not very crowded. Quiet and the right temperature.

No eye patches , socks given out for overnight flight! The snack on the short haul was a cube of chocolate! The seat was uncomfortable for a long haul - not enough cushioning!

I paid a lot of money for seat selection and was miserable for flight duration

My luggage never arrived to Zurich. They can't confirm when it will arrive

Late again. 3 out of 4 late. One cancelled flight and one lost bag.

Charged an extra 65 pounds for overweight suitcase, Not told how much overweight but had no choice but to pay the price. Compare to Delta Airlines where I flew internationally a few days before with this suitcase and no extra charge by Delta. Comfort was horrible. I am just under 6 feet tall, and good that the flight was only 1 1/2 hours, because my knees were in the seat back in front of me the whole flight. I felt that my knees were part way up to my chest. No reason to have the seats that close. I will say to the positive was the flight crew, very friendly and efficient.

The flight was delayed as they were waiting on catering. Catering. Was eventually delivered but they still had no food. No meals for us in business class - just a bag of nuts.

Our luggage is missing. We are at the Hotel Gran Via in Barcelona

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

The flight was on time and the crew very professional. Everything went as expected and I will use BA again for this trip.

We paid to have overhead carry-on baggage. When we got to the gate we were told that our carry on bags would need to be checked and go below because the flight was full. Notably we were nowhere near the last people to board and about 30 other passengers also had to check their carry-on bags. Other than that the flight was fine.

Very bad plain although I paid A business class ticket I was stuck in a stiff fixed seat without any entertainment or Wi Fi for 5 hours I will never ever book a flight on British airline.

Self check in Kiosk did not recognize that I had prepaid for my luggage. This caused a 40 minute delay even though I had my British Airways email receipt for the prepaid luggage.

Book cheap flights from London to Buenos Aires

Cheapest flights to Buenos Aires from London found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Buenos Aires found on KAYAK in the last 72 hours.
27/5Mon
1 stop
34h 50mLHR-EZE
£386
22/5Wed
2 stops
31h 55mLHR-EZE
£394
22/8Thu
1 stopAir France
19h 25mLHR-EZE
£512
24/8Sat
1 stopAir France
29h 55mLHR-EZE
£539
7/10Mon
2 stopsLATAM Airlines
37h 05mLHR-EZE
£588
23/5Thu
1 stopLATAM Airlines
16h 40mLHR-AEP
£602
12/5Sun
directBritish Airways
16h 25mLHR-EZE
£618
4/7Thu
1 stopLufthansa
18h 55mLHR-EZE
£638
4/7Thu
2 stopsLufthansa
20h 40mLHR-EZE
£653
28/6Fri
1 stopBritish Airways
24h 40mLHR-EZE
£708

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Last minute flights from Heathrow to Buenos Aires

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to Buenos Aires that are departing in the next 10 days.
10/5Fri
multi-stopAmerican Airlines
28h 05mLHR-EZE
12/5Sun
multi-stopAmerican Airlines
29h 51mEZE-LHR
£830
10/5Fri
multi-stopAmerican Airlines
21h 00mLHR-EZE
12/5Sun
multi-stopAmerican Airlines
29h 36mEZE-LHR
£832
10/5Fri
multi-stopAmerican Airlines
25h 45mLHR-EZE
12/5Sun
multi-stopAmerican Airlines
29h 36mEZE-LHR
£834
9/5Thu
multi-stopLATAM Airlines
16h 40mLHR-AEP
16/5Thu
multi-stopLATAM Airlines
36h 35mAEP-LHR
£1,116
9/5Thu
multi-stopLATAM Airlines
23h 40mLHR-AEP
16/5Thu
multi-stopLATAM Airlines
21h 35mAEP-LHR
£1,188
9/5Thu
multi-stopSWISS
19h 20mLHR-AEP
16/5Thu
multi-stopSWISS
19h 30mAEP-LHR
£2,022
9/5Thu
multi-stopSWISS
19h 20mLHR-AEP
16/5Thu
multi-stopSWISS
28h 00mAEP-LHR
£2,043
8/5Wed
multi-stop
19h 55mLHR-AEP
13/5Mon
multi-stop
16h 55mAEP-LHR
£2,200
8/5Wed
multi-stop
19h 55mLHR-AEP
15/5Wed
multi-stop
16h 55mAEP-LHR
£2,203
10/5Fri
directBritish Airways
16h 25mLHR-EZE
12/5Sun
directBritish Airways
15h 45mEZE-LHR
£2,972

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London Heathrow Airport - Buenos Aires Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Cabin classes:

£3,368
£1,387
£870