LON - BUE

£434 Find Cheap Flights from London 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 London to Buenos Aires departing on 7/5. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Buenos Aires.
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Everything you should know

Cheapest return fare
£750
Overall average: £976
Avianca
Tue 12/5Wed 10/6
LHR - EZE • 1 stop
Cheapest direct flights
£1,120
British Airways
Tue 19/5Thu 4/6
LHR - EZE • Direct
Top airlines
Cheapest • from £750 (return)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between London and Buenos Aires. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £770 (return)
Shortest trip • 16h 20m (one-way)
Insights
Insights
Insights
Insights
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Buenos Aires!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Buenos Aires (LON-BUE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London 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 for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Buenos Aires

Tue, 12 May - Wed, 10 Jun
Avianca Logo
22:05 - 00:25
LHR
-
EZE
30h 20m
1 stop
Avianca Logo
07:10 - 15:35
EZE
-
LHR
28h 25m
1 stop
£750Avianca
Wed, 15 Apr - Wed, 22 Apr
Avianca Logo
22:05 - 15:40
LHR
-
EZE
21h 35m
1 stop
Avianca Logo
07:10 - 15:35
EZE
-
LHR
28h 25m
1 stop
£751Avianca
Thu, 16 Apr - Mon, 1 Jun
Avianca Logo
22:05 - 05:40
LHR
-
AEP
35h 35m
1 stop
Avianca Logo
07:00 - 15:35
AEP
-
LHR
28h 35m
1 stop
£752Avianca
Tue, 12 May - Wed, 10 Jun
Air Europa Logo
17:25 - 07:40
LGW
-
EZE
18h 15m
1 stop
Air Europa Logo
12:10 - 09:00
EZE
-
LGW
16h 50m
1 stop
£797Air Europa
Wed, 6 May - Wed, 27 May
Air Europa Logo
10:00 - 07:40
LGW
-
EZE
25h 40m
1 stop
Air Europa Logo
12:10 - 16:25
EZE
-
LGW
24h 15m
1 stop
£835Air Europa
Mon, 4 May - Thu, 4 Jun
Lufthansa Logo
09:15 - 06:25
LCY
-
EZE
25h 10m
1 stop
Lufthansa Logo
16:35 - 17:55
EZE
-
LCY
21h 20m
1 stop
£883Lufthansa
Mon, 8 Jun - Tue, 16 Jun
Iberia Logo
19:15 - 16:25
LCY
-
EZE
25h 10m
1 stop
Iberia Logo
13:00 - 08:35
EZE
-
LCY
15h 35m
1 stop
£912Iberia
Thu, 4 Jun - Sun, 7 Jun
Lufthansa Logo
09:15 - 06:25
LCY
-
EZE
25h 10m
1 stop
Lufthansa Logo
16:35 - 17:55
EZE
-
LCY
21h 20m
1 stop
£914Lufthansa
Thu, 4 Jun - Sun, 7 Jun
Iberia Logo
09:50 - 07:40
LCY
-
EZE
25h 50m
1 stop
Iberia Logo
21:40 - 08:35
EZE
-
LCY
30h 55m
1 stop
£932Iberia
Wed, 6 May - Wed, 27 May
LATAM Airlines Logo
20:40 - 16:00
LGW
-
AEP
23h 20m
2 stops
LATAM Airlines Logo
19:20 - 20:00
AEP
-
LGW
20h 40m
2 stops
£1,086LATAM Airlines
Booking Insights

KAYAK’s insights & trends for London to Buenos Aires flights

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

How much is a return flight from London to Buenos Aires?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Buenos Aires departing in May.

What is the cheapest London to Buenos Aires flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Buenos Aires costs £962 on the route between London Heathrow Airport (LHR) and Buenos Aires Ministro Pistarini Airport (EZE). It is also the most popular route.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 to Buenos Aires is September, where tickets cost £883 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,279 and £1,085 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Buenos Aires, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Buenos Aires, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know - Cheap tickets from London to Buenos Aires

Low seasonJune
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (29% more expensive on average)

When to book flights from London to Buenos Aires

Are your dates flexible? Find out the best times to travel from London 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 flights from London to Buenos Aires

  • Where to report lost luggage or valuables at Ezeiza Airport?

    You should contact the Airport Security Police (PSA) if you lose an item or document in the parking areas or terminals. The PSA service is available 24h every day, but you should check with your airline if your luggage was lost during transit.

  • Is there a luggage storage and wrapping service at Ezeiza Airport?

    Luggage lockers and storage at Ezeiza Airport are currently unavailable. However, passengers can have their luggage wrapped by Secure Bags, a luggage packing and wrapping service located in the public areas of the arrival terminals.

  • Are there resting hotels and resting zones inside Ezeiza Airport?

    There are no hotels inside Ezeiza Airport, but travellers can get accommodation at nearby facilities, including Posada Quinta Pata and Eze Inn Boutique Hotel. Ezeiza Airport has no resting zones, but travellers with VIP memberships can access several VIP lounges inside the airport. In some VIP lounges, travellers can pay at the door.

  • Where do Cabify and Uber pick passengers at Ezeiza Airport?

    Cabify and Uber users must coordinate with the driver for pick-up at the parking area. However, passengers'drop-off and pick-up areas at Ezeiza Airport are exclusive to official cabs. It costs at most 1847.13 ARS (14.52 GBP) to travel from Ezeiza Airport to downtown Buenos Aires.

  • Can you request a tax (VAT) refund at Ezeiza Airport?

    Ezeiza Airport allows foreign passengers to request VAT refunds for purchases of locally produced products. The agency responsible for this procedure is known as Ezeiza Global Blue Airport. Its offices are available on Terminal C, the public boarding area, and Terminal A.

  • Does London Heathrow have quiet areas?

    Some of the terminals at London Heathrow have quiet rooms. The airport also has quiet areas that are far away from the busy terminal areas. Quiet areas at London Heathrow aren't exclusive to travellers with special needs and can be accessed by those looking for a calm and quiet environment.

  • Where can I stay at London’s airports?

    As the flight to Buenos Aires is long, it’s a good idea to get an airport hotel the night before your flight. There is Aerotel at London Heathrow (LHR) and Courtyard by Marriott at both Luton Airport (LTN) and Gatwick Airport (LGW). At Stansted Airport (STN) and London City Airport (LCY), there is Holiday Inn Express. To ensure you aren’t late for check-in, you can use the wake-up service on offer at the hotels.

  • What cities are located near London’s airports?

    London’s airports serve many UK cities. For instance, from Norwich, you can drive to Stansted Airport in about 1h 30min. From Brighton, it’s around 40min to Gatwick Airport, whereas, from Swindon, it’s approximately 1 hour to Heathrow Airport.

  • How can I lower my carbon emissions by taking a specific flight from London to Buenos Aires?

    Find a flight that emits fewer emissions, using the KAYAK search filter. For example, KLM flights from Heathrow Airport to Ezeiza International Airport release around 47% less CO2 than the industry standard for this route.

  • Which airlines provide Wi-Fi on flights from London to Buenos Aires?

    As it’s a long-haul flight from London to Buenos Aires, you might want to opt for a flight that has Wi-Fi. For instance, Air France provides passengers with internet access on board. You can search for airlines with this offering via the KAYAK search filter.

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

    In the last 3 days, the lowest price for a flight from London to Buenos Aires was £434 for a one-way ticket and £750 for a return.

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

    On your way to Buenos Aires, you’ll fly out from one of these London airports: London City, London Heathrow, or London Stansted. You’ll be landing in one of Buenos Aires’s 2 airports: Buenos Aires Jorge Newbery or Buenos Aires Ministro Pistarini.

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

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

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

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

  • What is the most popular stopover when flying to Buenos Aires from London?

    Madrid is the most popular stopover city among KAYAK users travelling from London to Buenos Aires.

  • Which is the best airline for flights from London to Buenos Aires, LATAM Airlines or Air France?

    The two airlines most popular with KAYAK users for flights from London to Buenos Aires are LATAM Airlines and Air France. With an average price for the route of £954 and an overall rating of 7.4, LATAM Airlines is the most popular choice. Air France is also a great choice for the route, with an average price of £955 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from London 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 to Buenos Aires.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London 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 is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Buenos Aires

  • Ministro Pistarini International Airport (EZE) is the main airport in Buenos Aires, Argentina's capital city. The airport is located about 20 miles away from downtown Buenos Aires. Most long-haul flights, including flights from London airports, arrive and depart from here.
  • It takes approximately 50min to travel from EZE Airport to the city centre by car. Taxis and car rentals are some of the convenient and reliable transfer options from Ezeiza Airport. Car rental services are available at both Arrivals on Terminal A and Terminal B.
  • Most flights to Buenos Aires from London depart from London Heathrow, London city's high-functioning and central airport. There is also a one-stop flight from London Stansted to Ezeiza Airport via Iberia and Ryanair. Iberia and Air Europa also operate at least one-stop flights to Ezeiza Airport via Madrid. Travellers, including those from London, UK, can purchase a SIM card upon touching down at Ezeiza Airport. Upon migration clearance and collecting your luggage, head to the public hall and buy a SIM card at any of the airport's mobile service provider's stores.
  • Banco de LA Nacion Argentina operates a 24-hour Currency Exchange Office at Terminal A of Ezeiza Airport. Banco Nacion also has a bank at the Corporate Aeropuertos building.
  • Depending on where your final destination is, you might find it more convenient to fly to a specific Buenos Aires airport. For instance, you can drive to Zarate from Jorge Newbery Airport (AEP) in about 1h 20min, whereas you can get to Las Flores from Ezeiza International Airport (EZE) in around 2h 15min.
  • British citizens do not need a visa to enter Argentina, as you will be granted permission to stay in the country for up to 90 days. Should you need to stay longer, you should speak to the Argentina Immigration Office before the 90 days are up. Your passport also needs to be valid for the duration of your stay.

Reviews of the top 5 airlines flying from London 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 London 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.
7.4
LATAM AirlinesOverall score based on 1919 reviews
7.3Comfort
8.0Crew
7.0Entertainment
7.5Boarding
6.7Food
Airline reviews

Nothing I like, I missed this connection b/c of an earlier flight delay. I had to stay one more night and I paid out my own pocket. LATAM failed to send me to a safe and decent hotel.

2.0 MediocreAnonymous, Mar 2026
LIM - LAX
Read more LATAM Airlines reviews

Nothing I like, I missed this connection b/c of an earlier flight delay. I had to stay one more night and I paid out my own pocket. LATAM failed to send me to a safe and decent hotel.

Deleted flight made me loose my connection flight now stuck in Atlanta for a day

On board crew was very good. Crew was friendly, snacks were good, especially the chips. Seats seemed a bit cramped. Boarding seemed unorganized, as we were instructed to get to the gate an hour early and then just stood around until boarding.

Latam wouldn’t tell me how much checked luggage would until I was at the airport and they charged me the highest price possible. Besides that, it was okay.

There was a mechanical issue with the plane that they had to work on before we could take off. That's fine, by all means, PLEASE make sure the mechanics are functioning properly. What was a problem was the fact that we sat on the tarmac for 4.5 hours without moving, without letting us off the plane, and without climate control and air running through the plane. There was no explanation as to what was going on; they just kept promising that it would be "15 minutes, then we are on our way." At one point, they even switched the entire crew out and told everyone we just needed to wait for new employees to show up. Then, as the 4 hours were not moving, an hour before the full refund, they made a big show about "the flight starting and the doors are locked, so you have to sit down." We didn't move for another 40 minutes; they were just trying to skirt around legalities that entitled us to restitution. When the flight finally was underway, the plane was gigantic but cramped in design, my entertainment screen kept freezing and glitching, and subtitles didn't work, and the crew was passive-aggressive. Terrible flight.

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

I like this airline a lot no problems at all, except being forced to check a carry-on bag ., Overall very good airline

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

we were missing our luggage, trying to find someone to have any empathy was pretty much not happening....

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

It was budget airline Veuling, even though we booked Iberia.

The staff was very nice and helpful. Some of the best crew I have met.

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

We flew into Barcelona and the plane was so cramped and very uncomfortable and dirty. But we flew out of Madrid and that plane was much better. Would fly Iberia again.

We were delayed 2 hours because the crew was late. They need better planning by the crew, we had to sit in uncomfortable seats waiting for them.

Difficulty to check in online, but well handled at the airport. Flight delay was unfortunate. Crew was adequate but not what we have usually experienced from BA. Seat was not comfortable.

Good Poor. service onboard No food. Low quality for economy plus

This was a short flight. We sat in business class so we we were served a warm meal, which was nice. The flight attendants were very attentive, professional, and kind.

Flight was delayed 3 hours and 15 minutes. The delay caused me to miss my tour group due to arriving late.

My long-haul flight experience with this airline was not very pleasant. Earphones were paid, and no eye mask or other amenities were provided. The meals were served in cardboard boxes with plastic cutlery. The restroom was unclean and ran out of toilet paper. However, the boarding process was smooth and well organized.

We experienced a delay of almost two hours before takeoff. For a flight of more than 10 hours, sitting on the runway for two hours is quite exhausting. The airline did nothing to attend to the passengers during that time. We were not given any courtesy drinks or snacks—only the bare minimum during the flight. The crew seemed very apologetic, but apparently they have restrictions imposed by the airline, because despite their friendliness, they provided strictly what was necessary and, of course, everything else was for sale. However, after a two-hour delay, one would expect at least complimentary beverages. In addition to this, the space between the rows of seats is inhumanely narrow. Air Europa should review this for such long flights and be a bit more considerate and humane with its customers.

I flew in business a couple of months ago, it was great, tried again in economy, it is the cramped seat I have ever been into, for an overseas flight across the atlantic it is inhumane to put passengers in such cramped space. Other than that, everything ok. Took a second flight from Madrid to London, also economy and it was roomy and perfect.

No WiFi on the plane. Crew was insensitive to my medical supplies and medicine in my carry on. If the crew was monitoring passengers putting 2 bags in overhead bins there would be room. We sat for 2 hours extra. Iberojet is horrible never again.

There was no water in one of the sinks in the executive area, which is unacceptable as we could not wash our hands after using the restroom

Like I said the experience was mediocre. Nothing special about this airline.

This flight was delayed by more than an hour. The seats are uncomfortable ans do not recline properly. I prepurchased a wifi pass, but wifi was not working on this flight at all. The food was bland.

Food situation was bad. Also movie choices when compared to other airlines was terrible. Seats very narrow. My tv didn’t work.

I was not allowed to cancel the flight, customer service is atrocious

Great staff, just very far from the main terminal, had to run to connect my flight. I had 90 minutes to spare. But my flight from Chicago was delayed also.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Be aware that your carry on is no longer a carryon. They go by the weight not just the size. Because we were forced to check them we missed our connection. Waiting over half hour at the luggage carrosol. Also, this added inconvenience happened because they "kayak" changed our itinerary knowing our connection was almost impossible, they wouldn't make different flights. Will never book the flight through KAYAK. USE the carrier for direct.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

If the plain wait for the passenger it should wait for the baggage!!

The plane was late (as was my flight out from Birmingham the day before)

Our seat numbers took a long time to be given to us. We were not seated together and I was put in the middle seat with both people on either side of me taking too much space!

The flight was delayed by an hour. Made the connection uncomfortably tight.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

You will pay for everything and feels like the airplane is old

The luggage problem I previously mentioned was actually this flight

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

No WiFi. No food. 250 ml of water only drink option. No entertainment options. Extremely bare bones flight

Economy seats were good and spacious. Much better than virgin by a mile.

It’s the old style plane with the old Ying Yang seats doesn’t compare to other airlines with newer planes.

Everything you need to know for your flight from London to Buenos Aires

Other airlines flying from London to Buenos Aires

Flights from the other most popular airlines that fly from London to Buenos Aires according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.