EZE - LHR

£424 Find Cheap Flights from Buenos Aires to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buenos Aires to Heathrow departing on 6/5. 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 London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buenos Aires to London, 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 Buenos Aires to London, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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

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

Everything you should know

Cheapest return fare
£875
Typical prices: £1,048-£1,484
Air Canada
Wed 6/5Wed 9/9
EZE - LHR • 2 stops
Cheapest direct flights
£1,311
British Airways
Tue 9/6Sat 20/6
EZE - LHR • Direct
Top airlines
Cheapest • from £875 (return)
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Buenos Aires and Heathrow. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £795 (return)
Shortest trip • 15h 45m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 Heathrow!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Buenos Aires to Heathrow 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 Buenos Aires to Heathrow

Wed, 6 May - Wed, 9 Sep
Air Canada Logo
16:35 - 08:35
EZE
-
LHR
36h 00m
2 stops
Air Canada Logo
08:30 - 14:30
LHR
-
EZE
34h 00m
2 stops
£875Air Canada
Fri, 8 May - Tue, 2 Jun
Avianca Logo
16:50 - 15:35
EZE
-
LHR
18h 45m
1 stop
Avianca Logo
22:05 - 15:40
LHR
-
EZE
21h 35m
1 stop
£876Avianca
Fri, 8 May - Fri, 5 Jun
Avianca Logo
16:50 - 15:35
EZE
-
LHR
18h 45m
1 stop
Avianca Logo
22:05 - 15:40
LHR
-
EZE
21h 35m
1 stop
£886Avianca
Wed, 6 May - Wed, 27 May
Air Canada Logo
16:35 - 08:35
EZE
-
LHR
36h 00m
2 stops
Air Canada Logo
08:30 - 14:30
LHR
-
EZE
34h 00m
2 stops
£893Air Canada
Thu, 23 Apr - Wed, 6 May
United Airlines Logo
21:00 - 11:35
EZE
-
LHR
34h 35m
1 stop
United Airlines Logo
11:25 - 08:00
LHR
-
EZE
24h 35m
2 stops
£895United Airlines
Wed, 6 May - Mon, 25 May
Air Canada Logo
16:35 - 06:30
EZE
-
LHR
33h 55m
3 stops
Air Canada Logo
12:40 - 14:30
LHR
-
EZE
53h 50m
3 stops
£896Air Canada
Thu, 16 Apr - Wed, 29 Apr
United Airlines Logo
21:00 - 07:55
EZE
-
LHR
30h 55m
1 stop
United Airlines Logo
10:00 - 08:00
LHR
-
EZE
26h 00m
1 stop
£896United Airlines
Tue, 5 May - Thu, 10 Sep
United Airlines Logo
21:00 - 11:35
EZE
-
LHR
34h 35m
1 stop
United Airlines Logo
13:40 - 08:00
LHR
-
EZE
22h 20m
1 stop
£897United Airlines
Tue, 28 Apr - Fri, 8 May
United Airlines Logo
21:00 - 07:45
EZE
-
LHR
30h 45m
1 stop
United Airlines Logo
10:00 - 08:00
LHR
-
EZE
26h 00m
1 stop
£899United Airlines
Tue, 28 Apr - Fri, 8 May
United Airlines Logo
21:00 - 07:45
EZE
-
LHR
30h 45m
1 stop
United Airlines Logo
10:00 - 08:00
LHR
-
EZE
26h 00m
1 stop
£899United Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Buenos Aires to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Buenos Aires Ministro Pistarini Airport to London Heathrow Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Buenos Aires Ministro Pistarini Airport to London Heathrow Airport departing in May.

What is the cheapest month to fly from Buenos Aires Ministro Pistarini Airport to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buenos Aires Ministro Pistarini Airport to London Heathrow Airport, 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 Buenos Aires Ministro Pistarini Airport to London Heathrow Airport is March, where tickets cost £968 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £1,799 and £1,433 respectively.

How far in advance should I book a flight from Buenos Aires Ministro Pistarini Airport to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Buenos Aires Ministro Pistarini Airport to London Heathrow Airport, 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 Buenos Aires Ministro Pistarini Airport to London Heathrow Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

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

Low seasonFebruary
Cheapest flight£424
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 8% lower on average.
Flight from Buenos Aires to London Heathrow Airport

When to book flights from Buenos Aires to Heathrow

Are your dates flexible? Find out the best times to travel from Buenos Aires to Heathrow 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 Buenos Aires to London Heathrow Airport flights

  • What is the cheapest flight from Buenos Aires Ministro Pistarini Airport to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Buenos Aires Ministro Pistarini Airport to London Heathrow Airport was £424 for a one-way ticket and £875 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Buenos Aires to London Heathrow Airport?

    KLM, Lufthansa, and Iberia offer inflight Wi-Fi service on the Buenos Aires to London Heathrow Airport flight route.

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

    The Boeing 777 is the aircraft model that flies most regularly on the Buenos Aires to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Buenos Aires to London Heathrow Airport?

    oneworld is the only airline alliance operating flights between Buenos Aires and London Heathrow Airport.

  • Which is the best airline for flights from Buenos Aires to London, Iberia or British Airways?

    The two airlines most popular with KAYAK users for flights from Buenos Aires to London are Iberia and British Airways. With an average price for the route of £1,192 and an overall rating of 7.0, Iberia is the most popular choice. British Airways is also a great choice for the route, with an average price of £1,377 and an overall rating of 6.7.

  • How does KAYAK find such low prices on flights from Buenos Aires to London Heathrow Airport?

    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 Buenos Aires to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buenos Aires to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Buenos Aires 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 Buenos Aires to London Heathrow Airport?

    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 London Heathrow Airport with an airline and back to Buenos Aires with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buenos Aires to London Heathrow Airport?

    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 London Heathrow Airport from Buenos Aires up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Buenos Aires to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Buenos Aires to London. 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 Buenos Aires to Heathrow? 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
IberiaOverall score based on 3133 reviews
7.7Crew
6.8Comfort
7.1Boarding
6.4Food
6.6Entertainment
Airline reviews

The pilot was professional and very good. The flight crew, very young and often looked flustered and overwhelmed. The seats were among the most uncomfortable in the air. The boarding somewhat chaotic. The price reasonable. Overall it was an average budget airline experience...although Iberia is not a budget airline. I fear if Iberia doesn't up it's game customers like us will go elsewhere.

4.0 OkayCFJ, Jan 2026
VCE - MAD
Read more Iberia reviews

The pilot was professional and very good. The flight crew, very young and often looked flustered and overwhelmed. The seats were among the most uncomfortable in the air. The boarding somewhat chaotic. The price reasonable. Overall it was an average budget airline experience...although Iberia is not a budget airline. I fear if Iberia doesn't up it's game customers like us will go elsewhere.

The boarding procedure got confusing because they wanted to weigh everyone’s carry-on. Apparently mine was 3 1/2 kg over their limit. I didn’t know they had a limit. And at the check-in desk, nothing was said about this. They wanted me to check the carry-on at no charge and that would have been fine except then they told me at my connection in London I would have to go outside to baggage claim retrieve my bag, and then recheck it. In other words, they could not check it to my final destination, only to London. I told him this was unacceptable so after a few minutes of discussion, they came back and said that my bag would be OK to carry on the plane. It seems that if you have a connection then the weight is not as important. Then when I actually went to board the boarding agent said I needed a tag indicating that my bag had been weighed, even though she had just five minutes ago talked to the same person who cleared me. Lots of confusion seems like a very bad process. They need to improve this.

My flight being automatically moved messed up my travel plans, and I had to quickly find an alternative mode of transportation. I couldn’t get a refund from any of the companies involved. Kayak, Ibiza, or Vueling. I am still unsure of how to settle my concern.

I've taken British Airways before and it has been great. On this trip to Spain and Portugal we had two BA flights. On both flights we were taken by bus from the terminal out to the plane on the tarmac. There were many older folks on these flights, and to ask people in their 70s to lug their carry-on and personal items up the long mobile staircase to the plane entrance, is very disturbing. I won't be taking British Airways in the future. Many people on these flights were very unhappy.

why can't planes be boarded from back to front?? everything was great otherwise

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.

Terrible customer service. I booked business class and the counter agent didn’t bother asking me about any choice or preferred seat, basically assigned me that last seat and couldn’t even answer if it was a business class seat. Also iberia lost my suitcase on my flight from JFK to MAD with the layover in BCN. Useless customer service at the counter. Thank goodness I happened to check the baggage claim area of the next flight in…there it was.

Good plane, excellent food, crew and entertainment. Seats in business could use an upgrade

We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.

British Airways offers amenities subpar with all other airlines flying internationally. Sharing tis based on my experience with flying at least five other airline between IAD-DEL in the last six months.

Worth every penny to upgrade to BC. Treated and felt more like First Class

I missed my flight because I was sick and the medicine the chemist provided made me sleepy. I had to pay $3500 to get home because you classified me as a no-show and would not listen to me otherwise. In addition you wanted to route me through Dubai, which was under siege by the time I arrived home and would’ve been in trouble. Had I taken that route

Limited entertainment. Music - very limited variety of music. Suggest more options in Hindi, Telugu, English for flights leaving from Hyderabad.

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Food was good. For a long haul flight, there was “0” zero entertainment! What a disappointment. I do try to avoid BA. Next time its Emirates via Dubai to Cairo.

The internet was working on both sectors of the flight so hard to take the flight if you are on business.

Delays on take off, delays at gate on landing, lugging lost to the ether. power on seats not working, couldn't work due to that and no WiFi. The crew was great and boarding was orderly if confused and rushed.

Mumbai airport is a nightmare! Especially going from domestic to international terminal (2). I almost missed my flight. Then i could not check in because I purchased on kayak to British airways and my first flight was an indigo (non partner). So they called me when I was at the security outside the terminal and told me I had a middle seat, not what I paid for! After talking to the desk agent, they could not help but it finally worked out. A bit stressful for no reason. Probably never buy from kayak again this type pf complicated tickets (multi cities).

They had us seating down for one hour just waiting on the plane

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

Information on your arrival and departure airports