LHR - AEP

£448 Find Cheap Flights from London Heathrow Airport to Buenos Aires Jorge Newbery

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 3/3. 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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Everything you should know

Cheapest return fare
£815
Avianca
Thu 14/5Thu 28/5
LHR - AEP • 1 stop
Cheapest one-way flight
£448
LATAM Airlines
Tue 3/3
LHR - AEP • 1 stop
Top airlines
Avianca
Cheapest • from £815 (return)
LATAM Airlines
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
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

Thu, 14 May - Thu, 28 May
Avianca Logo
22:05 - 05:40
LHR
-
AEP
35h 35m
1 stop
Avianca Logo
07:00 - 15:35
AEP
-
LHR
28h 35m
1 stop
£815Avianca
Mon, 9 Mar - Wed, 18 Mar
Multiple Airlines Logo
21:15 - 14:00
LHR
-
AEP
19h 45m
1 stop
Multiple Airlines Logo
22:55 - 06:45
AEP
-
LHR
28h 50m
1 stop
£821Multiple Airlines
Sun, 8 Mar - Sun, 15 Mar
Avianca Logo
21:40 - 05:40
LHR
-
AEP
35h 00m
1 stop
Avianca Logo
07:00 - 14:35
AEP
-
LHR
28h 35m
1 stop
£826Avianca
Sun, 8 Mar - Sun, 15 Mar
Avianca Logo
21:40 - 05:40
LHR
-
AEP
35h 00m
1 stop
Avianca Logo
07:00 - 14:35
AEP
-
LHR
28h 35m
1 stop
£827Avianca
Thu, 12 Mar - Tue, 31 Mar
Avianca Logo
21:40 - 05:40
LHR
-
AEP
35h 00m
1 stop
Avianca Logo
07:00 - 15:35
AEP
-
LHR
28h 35m
1 stop
£831Avianca
Thu, 12 Mar - Tue, 31 Mar
Avianca Logo
21:40 - 05:40
LHR
-
AEP
35h 00m
1 stop
Avianca Logo
07:00 - 15:35
AEP
-
LHR
28h 35m
1 stop
£834Avianca
Fri, 6 Mar - Sun, 22 Mar
LATAM Airlines Logo
20:15 - 09:40
LHR
-
AEP
16h 25m
1 stop
LATAM Airlines Logo
18:20 - 14:05
AEP
-
LHR
16h 45m
1 stop
£839LATAM Airlines
Thu, 12 Mar - Sun, 22 Mar
LATAM Airlines Logo
20:15 - 09:40
LHR
-
AEP
16h 25m
1 stop
LATAM Airlines Logo
18:20 - 14:05
AEP
-
LHR
16h 45m
1 stop
£849LATAM Airlines
Sat, 7 Mar - Sun, 22 Mar
Avianca Logo
21:40 - 05:40
LHR
-
AEP
35h 00m
1 stop
Avianca Logo
07:00 - 14:35
AEP
-
LHR
28h 35m
1 stop
£850Avianca
Tue, 10 Mar - Tue, 17 Mar
LATAM Airlines Logo
20:15 - 11:45
LHR
-
AEP
18h 30m
1 stop
LATAM Airlines Logo
18:20 - 17:15
AEP
-
LHR
19h 55m
2 stops
£850LATAM Airlines
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 Jorge Newbery?

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 Jorge Newbery were found on Avianca (£815) and LATAM Airlines (£839).

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

Low seasonNovember
Cheapest flight£448
Best time to beat the crowds (45% less expensive on average)
Most popular time to fly and prices are also 43% lower on average.
Flight from London Heathrow Airport to Buenos Aires Jorge Newbery

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 Jorge Newbery 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 £448 for a one-way ticket and £815 for a return.

  • Which aircraft models fly most regularly from London Heathrow Airport to Buenos Aires Jorge Newbery?

    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 Jorge Newbery?

    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 Jorge Newbery.

  • 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 Jorge Newbery?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires Jorge Newbery 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 Jorge Newbery?

    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 Jorge Newbery 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 Jorge Newbery?

    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 Jorge Newbery 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 1915 reviews
8.0Crew
7.5Boarding
7.0Entertainment
6.7Food
7.3Comfort
Airline reviews

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.

10.0 ExcellentSarah, Jan 2026
ANF - SCL
Read more LATAM Airlines reviews

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.

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

Comfort in exit seat was excellent. FLight crew and flight were excellent. However exit seat tray table was broken so could not use it. Entertainment monitor did not work at all despite attempts to reset it.

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

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

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.

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

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.

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 .

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

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

Information on your arrival and departure airports