LON - BUE

£367 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 13/9. 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.
1 adult
1 adult, Economy

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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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

Sun, 31 Aug - Wed, 24 Sep
Avianca Logo
22:05 - 00:10LHR-EZE
30h 05m1 stop
Avianca Logo
01:40 - 15:35EZE-LHR
33h 55m1 stop
£674Avianca
Find Deal
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
£675Avianca
Find Deal
Mon, 8 Sep - Tue, 30 Sep
Lufthansa Logo
08:30 - 06:25LHR-EZE
25h 55m1 stop
Lufthansa Logo
16:40 - 17:40EZE-LHR
21h 00m1 stop
£746Lufthansa
Find Deal
Mon, 8 Sep - Wed, 24 Sep
Lufthansa Logo
10:00 - 08:00LHR-EZE
26h 00m1 stop
Lufthansa Logo
21:00 - 07:40EZE-LHR
30h 40m1 stop
£756Lufthansa
Find Deal
Tue, 20 Jan - Mon, 9 Mar
Iberia Logo
19:40 - 17:55LGW-EZE
25h 15m1 stop
Iberia Logo
19:30 - 19:00EZE-LGW
20h 30m1 stop
£763Iberia
Find Deal
Tue, 20 Jan - Mon, 9 Mar
Iberia Logo
19:40 - 17:55LHR-EZE
25h 15m1 stop
Iberia Logo
19:30 - 17:15EZE-LHR
18h 45m1 stop
£766Iberia
Find Deal
Mon, 12 Jan - Mon, 9 Feb
British Airways Logo
19:15 - 17:55LCY-EZE
25h 40m1 stop
British Airways Logo
19:30 - 14:35EZE-LCY
16h 05m1 stop
£881British Airways
Find Deal
Mon, 26 Jan - Fri, 13 Feb
Air Europa Logo
10:00 - 08:50LGW-EZE
25h 50m1 stop
Air Europa Logo
13:15 - 16:25EZE-LGW
24h 10m1 stop
£900Air Europa
Find Deal
Mon, 26 Jan - Fri, 13 Feb
Air Europa Logo
10:00 - 08:50LGW-EZE
25h 50m1 stop
Air Europa Logo
13:15 - 16:25EZE-LGW
24h 10m1 stop
£901Air Europa
Find Deal
Tue, 20 Jan - Wed, 18 Feb
British Airways Logo
09:10 - 17:55LCY-EZE
35h 45m1 stop
British Airways Logo
19:30 - 14:05EZE-LCY
15h 35m1 stop
£915British Airways
Find Deal
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.

Find cheap flights to Buenos Aires
Find cheap flights to Buenos Aires

Planning a trip from London to Buenos Aires? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

How much is a round-trip flight from London to Buenos Aires?

What is the cheapest London to Buenos Aires flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London to Buenos Aires.

Our data shows that the cheapest route for a return flight from London to Buenos Aires cost £931 and was between London Heathrow Airport (LHR) and Buenos Aires Ministro Pistarini Airport (EZE). On average, the best prices are found if you fly this route. The average price for a return flight for this route is £931.

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

The average price of all round-trip flights from London to Buenos Aires clicked on KAYAK for each day over the last 12 months.

When flying from London to Buenos Aires, you should consider leaving on a Tuesday and avoid Fridays if you are looking for the best rates. For your return to London, you’ll find the best rates on Thursdays and the most expensive ones on Fridays.

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 March, where tickets cost £836 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is £1,255 and £1,041 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 2 weeks before departure, which saves you about 12% 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 seasonJune
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (33% 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 £489 for a one-way ticket and £898 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?

    Star Alliance, SkyTeam, 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, KLM or Finnair?

    The two airlines most popular with KAYAK users for flights from London to Buenos Aires are KLM and Finnair. With an average price for the route of £1,077 and an overall rating of 7.8, KLM is the most popular choice. Finnair is also a great choice for the route, with an average price of £879 and an overall rating of 7.6.

  • 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 £1,037 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.
7.0
Air EuropaOverall score based on 543 reviews
7.1Boarding
6.9Comfort
7.5Crew
6.3Food
6.5Entertainment
Airline reviews

Everything should improve! Service like a low cost but prices like a premium airline. Crew in general with bad manners arguing for everything. You pay for priority access but then they use buses, so your loose your advantage to put your carry on first. That was the purpose for paying for priority. Bording is a nightmare, people accessing the plane for bothering doors, front and rear, no matter which line do you have.

4.0 OkayPablo, May 2025FCO - MAD
Read more Air Europa reviews

Everything should improve! Service like a low cost but prices like a premium airline. Crew in general with bad manners arguing for everything. You pay for priority access but then they use buses, so your loose your advantage to put your carry on first. That was the purpose for paying for priority. Bording is a nightmare, people accessing the plane for bothering doors, front and rear, no matter which line do you have.

Issues with plane led to multiple gate changes and chaos. Very little communication from the ground crew led to cranky passengers.

I flew business class, at breakfast I asked for a small bottle of olive oil instead of butter and the flight attendant responded with a negative gesture.

They didn't even give us water, everything was sold

They should at least offer water like other airlines, which seems like a humanitarian gesture to me

They gave me an upgrade but charged me for my bag. I felt abused because this had never happened to me before with an upgrade with another airline.

Well. It is a no frills airline. Annoying is that even for the long-haul everything has to be paid for separately. Once you add up the extras the flight is getting to expensive. Then one might as well fly with a legacy carrier which provides far better comfort. Changing flight at MAD airport is a nightmare. The worst airport in the world. Poor signposting, poor passport control, poor security check and long queues. I had 2h transfer time and spend in queues almost 1.5h

All flights with Air Europa you arrive late to the connections of other flights, I missed my train, I had to pay for my train again, the crew are antisocial, you are paying for a service, it is not free, thanks to the travelers they are there, it is the last time I fly with them,

Terrible experience - we won’t be flying with Air Europa again

The crew was not kind , just doing their job but very cold people

Iberia lost my bag, said they found it in another country, said they sent it to me, but never did. Went my whole trip without my stuff, but expecting it to show up because that’s what they said would happen. Their communication sucks, their website sucks, and to top it all off, their seats are small and uncomfortable. They’re bad at their jobs and they should feel bad about themselves. Do not even get me started on the flight home. AVOID!

One of the crew members hit me with the car and not even says anything

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

There's not enough leg room in economy class. The seats are very narrow as well.

Paid for my seat 4 months ago. Did not pay the extra for specific seat assignment ( never have and never was a problem). Could not electronically check in (found out it was due to overbooking and that unassigned seats get bumped first - never happened to me before). Luckily, did make the flight. Very stressful - would have been extremely disruptive for my travel plans. UK Visa - never notified by Kayak or BA that a visa was required. Had to spend 15 minutes to download and complete app at the flight counter and pay $25, and was told they would let me know in 3 days if I would get it (flight landing in 10 hours from when I completed app). Luckily, visa was approved before landing. Unnecessary stress created here. Food - main meal, curry chicken barely palatable with unrecognizable vegetable. Desert cup, cheesecake, also barely palatable. Salad cup was good. Small water offered only 3 times (before main meal, at main meal, at morning snack) - not nearly enough for long flight.

Bag misplaced. Iberia claims bag has been forwarded. But AirTag shows that the bag is still in Madrid.

You get what you pay for. In general I like the service and flight attendants.

Service and food were excellent, could have been more info in English.

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.

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.

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.

No Wi-Fi or food unless you pay an expensive fee.

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

Amazing! The food was great! Best airline meal ever. The crew was so nice and pleasant.

The seats were extremely uncomfortable. I spent €25 on internet and never gained access to it. A flight attendant told me she would file a complaint/report on my behalf but it put me in a very difficult situation.

The crew were great and constantly cleaning bathrooms and taking care of passengers. Flight was on time and arrived on time. Boarding was easy and hassle free. Food could have been better but decent selection. Overall recommend and will fly again.

Better consideration for families traveling with a disabled person. They insisted each person hold their own boarding pass on their own devices and gave us a hard time accepting eight boarding passes on a single device.

Two of my four flights had issues with toilets either NOT fully operational or completely out of order. Boarding was a joke because they have NOT established who is running the show. In the end, she did a terrible job. The seats 💺 were loose goose and the drinks and snacks were limiting in choices. Also, following Alitalia as an inspiration was strange since they went out of business.

We had a 3 hour delay and then a long taxi to take off. It would have been helpful for the pilot to have communicated more about what was going on. There was no A/C during the wait, and the cabin must have been more than 85 to 90 degrees. The crew gave water to the people in the front but by the time they go to the back of the plane they stopped giving out water. Eventually I went back and asked for some in the rear of the plane (for a second time). The food was close to inedible. I thought on an Italian flight that the pasta would be better than the chick, but honestly, a Swanson's TV dinner would have been better. I had a bite or two to keep my blood sugar up, but basically I couldn't eat it.

Great crew, newer plane, boarding was very disorganized, I still don’t understand why airline keep boarding front to back for coach instead of back to front

Terrible. They canceled 2 flights and then sent everyone by BUS from Rome. They should make amends by offering some sort of compensation.

Paid for a seat I didn’t get. Flight attendant said they would “report “ the problem. Food terrible. No service unless requested. Plane filthy. Seats falling apart. Broken footrest. Bathroom toilet held in place with tape. No gate announcements though delayed 2 hours. Is that enough?

I don't like anything in this flight the food was bad the service was bad the flight was old and not connected to the screen no intertainments at all and it was long trip was bad intertainments the crew not helping

The company tries shamelessly to squeeze every dollar)Euro out of its passengers. During the check-in the force you to go through the seat selection, you can skip it. They will assign you the worst seat available, then show you the other available seats on the map, for a fee. But they won't show you the fee until you click on it. And once you do click, there's no way to unselect it!! You will get stuck and forced to pay for that seat. Cheaters!!

The flight was great. I don’t know about the food because I was asleep and they didn’t leave me any.

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

All good. Loo’s weren’t great and as clean as i would like.

A great flight. The crew was excellent too. Of particular note of excellence was the gluten-free meal which was one of the best offerings I’ve ever had on a plane. Outstanding work, BA chefs.

I was put into business class. Wow! My flight attendant was great! The food amazing’

The gate at London Gatwick had confusing signs for the different zones and the staff seemed harried because people didn't know when it was their turn to come to the desk. Plus, with there were too many carry-on bag travelers, myself included. The charge scheme for checking bags is frustrating. If you travel light, you want the freedom to leave as soon as you deplane. When you are forced to gate-check your bag simply because the flight is fully booked, you lose whatever time you'd hoped to save because you're still stuck waiting for your bag to come off the conveyor belt.

I got stuffed on both flights into terrible seats. Second flight the seat didn’t even recline and fit s tall person, that’s very uncomfortable.

I arrived at Bridgetown only to fins that a suitcase was missing. It was left at Manchester. I had to wait wait 2 days before deciding on going to collect from the airport personally. I am not happy about paying for baggage at the airport. This I thought was included in the price of the ticket. Who goes away for 2 weeks and does not bring luggage. This was a total rip off and I am not happy. I need someone to contact me before returning so that I don't have to pay all over again to return homde.

Boarding market okay just because of the delay we had, but not related to the crew in any way…

Not so good with their baggage handling as they damaged one of my check in luggage

Economy plus was a very enjoyable experience. Lots of room and the crew were fantastic with the kids. We even got a chance to meet the pilot

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.

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