LON - BUE

£464 Find Cheap Flights from London to Buenos Aires – Compare and Save

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 7/9. 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.
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Everything you should know

Cheapest return fare
£864
Typical prices: £861-£1,056
Avianca
Sat 23/1Sat 13/2
LHR - EZE • 1 stop
Cheapest direct flights
£964
British Airways
Sat 12/12Wed 23/12
LHR - EZE • Direct
Top airlines
Cheapest • from £866 (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
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Top stopover airports
Cheapest • Avg £681 (return)
Shortest trip • 15h 05m (one-way)
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Top routes
Cheapest
Most popular
Insights
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When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 11% compared to booking last minute.
Insights
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When to travel
Cheapest • 12% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Sat, 23 Jan - Sat, 13 Feb
Multiple Airlines Logo
21:40 - 15:50
LHR
-
EZE
21h 10m
1 stop
Multiple Airlines Logo
07:30 - 08:25
EZE
-
LHR
21h 55m
2 stops
£864Multiple Airlines
Mon, 12 Oct - Tue, 17 Nov
Multiple Airlines Logo
12:50 - 12:25
STN
-
EZE
27h 35m
2 stops
Multiple Airlines Logo
13:05 - 09:40
EZE
-
STN
17h 35m
1 stop
£865Multiple Airlines
Wed, 9 Sep - Wed, 23 Sep
LATAM Airlines Logo
21:20 - 09:25
LHR
-
AEP
16h 05m
1 stop
LATAM Airlines Logo
18:20 - 15:05
AEP
-
LHR
16h 45m
1 stop
£873LATAM Airlines
Fri, 13 Nov - Thu, 3 Dec
Iberia Logo
11:45 - 17:25
LGW
-
EZE
32h 40m
1 stop
Iberia Logo
22:15 - 19:00
EZE
-
LGW
17h 45m
1 stop
£874Iberia
Thu, 12 Nov - Wed, 2 Dec
Iberia Logo
11:45 - 17:25
LGW
-
EZE
32h 40m
1 stop
Iberia Logo
22:45 - 19:00
EZE
-
LGW
17h 15m
1 stop
£874Iberia
Tue, 27 Oct - Sat, 14 Nov
Avianca Logo
21:40 - 15:50
LHR
-
EZE
21h 10m
1 stop
Avianca Logo
16:55 - 14:35
EZE
-
LHR
18h 40m
1 stop
£877Avianca
Tue, 27 Oct - Wed, 11 Nov
Avianca Logo
21:40 - 15:50
LHR
-
EZE
21h 10m
1 stop
Avianca Logo
16:55 - 14:35
EZE
-
LHR
18h 40m
1 stop
£877Avianca
Tue, 24 Nov - Sun, 13 Dec
American Airlines Logo
11:15 - 08:40
LGW
-
EZE
24h 25m
2 stops
American Airlines Logo
23:35 - 07:30
EZE
-
LGW
28h 55m
2 stops
£880American Airlines
Mon, 23 Nov - Sun, 13 Dec
American Airlines Logo
11:15 - 08:40
LGW
-
EZE
24h 25m
2 stops
American Airlines Logo
23:35 - 07:30
EZE
-
LGW
28h 55m
2 stops
£880American Airlines
Wed, 9 Sep - Wed, 23 Sep
LATAM Airlines Logo
20:10 - 20:00
LHR
-
AEP
27h 50m
2 stops
LATAM Airlines Logo
18:20 - 15:05
AEP
-
LHR
16h 45m
1 stop
£883LATAM 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 January.

Flight prices are below average for this route right now.

Flights to Buenos Aires from London usually cost between £946 and £1,248 in January.
The lowest price found in the past 5 days was £864 on Multiple Airlines (23 Jan–13 Feb).

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 £877 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 May, where tickets cost £878 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,343 and £1,112 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 5 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know - Cheap tickets from London to Buenos Aires

Low season

June

Cheapest flight

£464
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (29% more expensive on average)
Flight from London Gatwick Airport to Buenos Aires

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 5 days, the lowest price for a flight from London to Buenos Aires was £464 for a one-way ticket and £864 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?

    oneworld, and Star Alliance are the airline alliances operating flights between London and Buenos Aires, with oneworld 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, Air France or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from London to Buenos Aires are Air France and LATAM Airlines. With an average price for the route of £964 and an overall rating of 7.5, Air France is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of £973 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

  • Looking for a cheap flight from Buenos Aires to London? 25% of our users found flights on this route for £1,012 or less round-trip.
  • 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 1967 reviews
7.5Boarding
7.3Comfort
7.0Entertainment
8.0Crew
6.7Food
Airline reviews

Apart of Sky miles delta. And they go everywhere in Brazil

10.0 ExcellentAnonymous, Feb 2026
MCO - GRU
Read more LATAM Airlines reviews

Apart of Sky miles delta. And they go everywhere in Brazil

We were not allowed to carry a bottle of water onto the 8 hour 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.

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

It’s a delta flight operated by LATAM. The whole ticket sale is a mess, delta changed my flight but didn’t update it in LATAM system, I couldn’t get my boarding pass, it took me hours to resolve this issue with delta. I had to change my travel plan. No apology from Delta even though it’s their fault.

Only complaint is that the entertainment system wasn’t working on our seats and some others.

The crew was amazing. The best in the last times. Great group of people.

Not very good, they nickel & dime you for better seats & pay extra for the checking in bag, bad service all the way around

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

There was confusion over the electric wheelchair. Though it was categorized and double checked at checking the gate seemed confused by the chair.

Boarding was a mad rush as people still had issues with boarding passes and groups 3- 7 were asked to board when travelers were still stuck behind the document check. Food was one of the worst I’ve ever had in an Economy flight. The crew was very friendly though

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.

Charging $300 to be able to pick a seat next to your wife was nothing less than extortion.

I’m very mad because I paid an extra $105 to change seats to an exit row with more leg room. The app clearly showed a gap in between the seats in the row I changed my seat to and I paid for it. When I boarded the plane, it wasn’t an exit row seat and no more room than my original seat. I feel like I was ripped off $105.

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

Overall a great. However, the seating is way too narrow, for guys with any shoulder width. Luckily the crew moved the guy next to me, or it would have been miserable.

The plane was not well maintained. The entertainment system didn’t work properly, eg moving map. Many of the seat controls did not work. Cabin temperature fluctuated considerably during the flight. The seat allocated was poor, it was noisy and offered no privacy. The perfume in the toilet triggered severe allergies. Crew was very goid.

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.

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.

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

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Flights scheduled with impossible connections - Lufthansa apparently believes it takes 7mins to change terminals, go through passport control, re-clear security and walk 1.8kms…..and everything will work perfectly (which it never does at Frankfurt). No staff on hand to assist with transfers on delayed flights. No transfer guidance provided by app. No compensation offered for 6hr delay to connecting flight.

Crew were friendly and very helpful Plane was clean and the legroom is standard. Overall a good flight, no complaints.

I did not like that they failed to put my luggage on my connecting flight to Athens. I was promised it would be located and delivered within 2 days but later told there was no information on its location. This caused me to have unplanned for expenses because I then had to purchase new clothing to wear on my vacation. I did not receive my luggage until my return flight home. I will not be traveling with them again.

No internet, very narrow seats insufficient room for three passengers with encroachment.

Other than problems with checking in and uploading passport info everything was great. It would be nice to be able to manually input passport info. Often while traveling the bandwidth has problems uploading pictures

Give at least coffee or juice as it is an international flight.

Not good because in this cancelled and then rebooked flight BA put me and my husband in both middle seats when we were originally seated together in original flight and i was in aisle. I hate sitting in the middle. BA food needs to be better. It was just ok. Thanks though to screw and everyone one for safe flight

Crew members were thorough in checking seatbelts and whatnot which makes me feel cared for because passenger safety is a main concern.

I was sent an email that said my card payment was not verified. When I spoke to an agent , he said my card was not verified and the flight I thought I had to booked was no longer available so I booked another flight on another airline(United). Later I got flight updates , etc., concerning my supposed first flight. So if I was charged for this flight on British Airways/American airlines, I need a refund.

The crew made it a great flight. They were friendly and attentive. They made me want to fly British Airways again.

BA has not been handling priority luggage with any special priority. This time our luggage was distinctly very slow to arrive, well after the first half of items to arrive. Business class flights cost a lot and it would be nice to have that reflected in the speed of baggage handling! (I note that this has worsened in our long experience of BA.) On a different note, we spent 2.5 hours on the plane after landing because of an airport mishap at Boston Logan. The pilot provided reasonably frequent update but more could have been done to ensure passenger comfort, such as more beverage and maybe snack services.

I purchased premier economy seats but I was seated one row off and was sitting in economy my bottle of water and cookie did not compare to the menus handed OP it in premier.

I understand and don't want food on a short trip, but tea and coffe (at least 1 cup) should be free. Nevertheless there was water available and the crew was nice.

Food is horrible. Flight was good and the staff were mostly men.

Delayed suitcase - terrible service to get my suitcase next day, I was informed it would arrive today in the afternoon (Jun/28). Now, I was informed I may or may not receive it until 3 am (Jun/29).

Seats were comfortable, but boarding was the worst I've ever seen. Way too much walking to get onboard as we had to go up & down steps several & then bus took us halfway around the airport for boarding & had to board outside after a very long bus rood.

The airline did not allow enough time for the Columbia checkpoint

Boarding, crew and food. Seats are too small Love Avianca

They charged for WATER on a SIX hour flight!! never again!

Our flight from BOS - BOG was delayed 10 hours because they were waiting for a Flight attendant to fly from Miami. They lied and said they would give us food and hotel. That was a straight Lie! It never came! We were in the airport for 13 hours with Two babies. We were on the plane 7 more Hours. When we asked to get diapers from our checked luggage, Jorge in Boston told my wife she should have planned better. Meanwhile, the 10 Avianca Employees Sat there and did nothing for 13 hours. Yes, we planned for 10 hours with the wait and the flight, not 20 hours JORGE! If this was an American company we would have got a refund! But they are not up to American standards. The kicker is they apparently needed the 3rd stewardess to serve the food. Guess what? It was 4AM when they tried to serve the FOOD! Everybody was asleep by then! Ridiculous! Never Again!

No water for a 5 hour flight entertainment not working seats with little room for knees when person in front of me reclined kept bumping my knees.

The good thing is the flight was on time and the crew was really nice. They can work better the arriving with staff

GOL made the flight experience a true delight. Everything was smooth, from the check in process, to the disembarking moment.

No comfort at all. You should add at least 1 meal or a bottle of water. I wanted to buy one sandwich and everything was gone.

The temperature was cold and the food that we had to pay for was awful. The crew didn’t even offer a free glass of water. It was a long, expensive and uncomfortable flight.

My international flight from LAX to Argentina had one free check in bag included in the price I paid, however your crew in LAX made me pay $95 USD to carry it on! Please note I had only on small size luggage (carry on size) and one backpack. I demand my $95 USD back that you guys charged me illegally in LAX.

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.