LON - AEP

£467 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 3/12. 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 Jorge Newbery Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Buenos Aires, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Buenos Aires, as well as popular online travel agencies
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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

 
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, 10 Feb - Mon, 16 Mar
Avianca Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35AEP-LHR
28h 35m1 stop
£814Avianca
Find Deal
Tue, 17 Feb - Wed, 25 Feb
Avianca Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35AEP-LHR
28h 35m1 stop
£816Avianca
Find Deal
Fri, 13 Mar - Sat, 21 Mar
Multiple Airlines Logo
10:00 - 13:00LGW-AEP
30h 00m2 stops
Multiple Airlines Logo
06:20 - 16:25AEP-LGW
31h 05m2 stops
£842Multiple Airlines
Find Deal
Fri, 13 Mar - Thu, 26 Mar
Multiple Airlines Logo
07:00 - 21:45LGW-AEP
41h 45m3 stops
Multiple Airlines Logo
00:10 - 22:30AEP-LGW
43h 20m3 stops
£845Multiple Airlines
Find Deal
Tue, 25 Nov - Tue, 2 Dec
LATAM Airlines Logo
20:15 - 09:40LHR-AEP
16h 25m1 stop
LATAM Airlines Logo
18:20 - 14:05AEP-LHR
16h 45m1 stop
£853LATAM Airlines
Find Deal
Wed, 3 Dec - Mon, 8 Dec
LATAM Airlines Logo
20:15 - 14:00LHR-AEP
20h 45m1 stop
LATAM Airlines Logo
14:55 - 14:05AEP-LHR
20h 10m1 stop
£868LATAM Airlines
Find Deal
Fri, 13 Mar - Sun, 29 Mar
Air Canada Logo
13:25 - 17:20LHR-AEP
30h 55m2 stops
Air Canada Logo
13:35 - 06:35AEP-LHR
37h 00m2 stops
£880Air Canada
Find Deal
Sun, 15 Mar - Sun, 29 Mar
Air Canada Logo
13:25 - 17:20LHR-AEP
30h 55m2 stops
Air Canada Logo
13:35 - 08:35AEP-LHR
39h 00m2 stops
£890Air Canada
Find Deal
Sun, 15 Mar - Sun, 22 Mar
Turkish Airlines Logo
10:15 - 05:40LGW-AEP
46h 25m2 stops
Turkish Airlines Logo
07:00 - 22:35AEP-LGW
36h 35m2 stops
£1,006Turkish Airlines
Find Deal
Sun, 15 Mar - Sun, 22 Mar
Turkish Airlines Logo
06:20 - 05:40LGW-AEP
50h 20m2 stops
Turkish Airlines Logo
07:00 - 16:10AEP-LGW
54h 10m2 stops
£1,010Turkish Airlines
Find Deal

Everything you should know

Top airlines
Avianca
Cheapest • from £814 (return)
LATAM Airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest return fare
£814
Avianca
Tue 10/2Mon 16/3
LHR - AEP • 1 stop
Cheapest one-way flight
£467
Multiple Airlines
Wed 3/12
LGW - AEP • 2 stops
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Buenos Aires!
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.

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

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest return tickets from London to Buenos Aires were found on Avianca (£814) and LATAM Airlines (£853).

Which airlines fly direct between London and Buenos Aires Jorge Newbery Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from London to Buenos Aires Jorge Newbery Airport.

There is just one airline that flies from London to Buenos Aires Jorge Newbery Airport direct and that is LATAM Airlines. The best return deal found from LATAM Airlines for the route is £888.

Find deals

Good to know - Cheap tickets from London to Buenos Aires

Low seasonMarch
Best time to beat the crowds (31% less expensive on average)
Most popular time to fly (41% 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 London to Buenos Aires flights

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

    In the last 3 days, the lowest price for a flight from London to Buenos Aires Jorge Newbery Airport was £467 for a one-way ticket and £814 for a return.

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

    London is served by 2 major airports and there is only 1 main airport in Buenos Aires. You will leave London from one of these airports: London City or London Heathrow. You will be arriving at Buenos Aires Jorge Newbery.

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

    We unfortunately don’t have that data for this specific route.

  • 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 travellers 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.

Reviews of the top airline 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.
7.5
LATAM AirlinesOverall score based on 1873 reviews
7.5Boarding
7.3Comfort
8.0Crew
6.7Food
7.0Entertainment
Airline reviews

The assistance we received and the flight itself was wonderful. We will fly with LATAM airlines again, in the future.

10.0 ExcellentRon, Oct 2025MVD - SCL
Read more LATAM Airlines reviews

The assistance we received and the flight itself was wonderful. We will fly with LATAM airlines again, in the future.

Check in -- in business took over 30 mins as there was only one attendant. Boarding was also a mess. The seat was too narrow and was not working properly. Food was very bad and the entertainment very poor. Crew was very polite and helpful, in fairness.

The plane broke down at the Lima stopover and they offered to put me on a flight the be t day but I had to be back in LA that morning and so I had to buy another ticket from Avianca and United for $2k I asked LATAM for compensation and received none. Very bad experience

Poor handling of carry on luggage. We had a 8 hour stop in Santiago, are over 70 and, in spite of paying full fare they wanted to send carry on to luggage hold. No empathy. We had to show that several group 4/5 passengers were not sending their carry ons before they finally let Is keep them. Very poor .

Really bad experience – delayed for 6 hours without any notice, no food or drinks provided, and stuck in the horrible Cartagena airport.

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

The flight was late. Please do not delay next time.

Horrible the worst airlines I have ever flown. Cancelled flight with no choices and when contacted them they were not helpful

My entertainment did not work. I was very tired from the botched connection, and the poor sleep

Lost ,y connection due to a mechanical delay, huge line to get new connection and vouchers

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

Information on your arrival and departure airports

Jorge Newbery (AEP)

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.