LHR - AEP

£469 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 29/11. 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
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Flight Deals

Cheap Flights from Heathrow to Buenos Aires (LHR-AEP)

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

Recent return flight deals from Heathrow 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
Thu, 26 Feb - Thu, 19 Mar
Avianca Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35AEP-LHR
28h 35m1 stop
£817Avianca
Find Deal
Sun, 8 Feb - Thu, 19 Mar
Avianca Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35AEP-LHR
28h 35m1 stop
£825Avianca
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
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Tue, 25 Nov - Tue, 2 Dec
Multiple Airlines Logo
18:30 - 09:20LHR-AEP
41h 50m3 stops
Multiple Airlines Logo
14:30 - 14:05AEP-LHR
20h 35m2 stops
£867Multiple 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
Mon, 9 Mar - Mon, 20 Apr
Multiple Airlines Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Multiple Airlines Logo
11:40 - 15:35AEP-LHR
23h 55m2 stops
£879Multiple 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

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
£469
Multiple Airlines
Sat 29/11
LHR - AEP • 3 stops
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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!
Booking Insights

KAYAK's insights & trends for Heathrow to Buenos Aires flights

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.

Which airlines provide the cheapest flights from London Heathrow Airport 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 Heathrow Airport to Buenos Aires were found on Avianca (£814) and LATAM Airlines (£853).

Which airlines fly direct between London Heathrow Airport 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 Heathrow Airport to Buenos Aires Jorge Newbery Airport.

There is just one airline that flies from London Heathrow Airport 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.

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

Low seasonNovember
Cheapest flight£469
Best time to beat the crowds (44% less expensive on average)
Most popular time to fly and prices are also 28% lower on average.
Flight from London Heathrow Airport to Buenos Aires

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 Jorge Newbery Airport?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Buenos Aires Jorge Newbery Airport was £469 for a one-way ticket and £814 for a return.

  • Which aircraft models fly most regularly from London Heathrow Airport 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 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.

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

Poor, the airline was not able to help me move flights.

The way the Pilot made all announcements, specially the way he congratulated the entire crew as the best team ever, making a comment that due to them they were able to shorter the delay to the destination. Amazing flight .

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

Just to drop my already labeled bag it took 50 minutes inline. Completely disappointed with Latam operation at GRU

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.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

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

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.

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

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