EZE - LHR

£459 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 21/3. 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 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
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Everything you should know

Cheapest return fare
£913
Overall average: £1,177
Multiple Airlines
Mon 27/4Sun 31/5
EZE - LHR • 2 stops
Cheapest direct flights
£1,208
British Airways
Fri 20/3Thu 16/4
EZE - LHR • Direct
Top airlines
LEVEL
Cheapest • from £1,004 (return)
Iberia
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 18% price drop
May
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

Mon, 27 Apr - Sun, 31 May
Multiple Airlines Logo
01:40 - 10:00
EZE
-
LHR
28h 20m2 stops
Multiple Airlines Logo
09:30 - 14:30
LHR
-
EZE
33h 00m1 stop
£913Multiple Airlines
Sat, 2 May - Sun, 31 May
Multiple Airlines Logo
16:45 - 08:35
EZE
-
LHR
35h 50m2 stops
Multiple Airlines Logo
09:30 - 14:30
LHR
-
EZE
33h 00m1 stop
£916Multiple Airlines
Thu, 7 May - Fri, 22 May
Avianca Logo
16:45 - 15:35
EZE
-
LHR
18h 50m1 stop
Avianca Logo
22:05 - 15:20
LHR
-
EZE
21h 15m1 stop
£922Avianca
Tue, 28 Apr - Thu, 28 May
Avianca Logo
01:40 - 15:35
EZE
-
LHR
33h 55m1 stop
Avianca Logo
22:05 - 05:45
LHR
-
EZE
35h 40m1 stop
£925Avianca
Sat, 2 May - Sat, 16 May
Avianca Logo
16:45 - 15:35
EZE
-
LHR
18h 50m1 stop
Avianca Logo
22:05 - 00:10
LHR
-
EZE
30h 05m1 stop
£931Avianca
Mon, 27 Apr - Sun, 31 May
Avianca Logo
01:40 - 15:35
EZE
-
LHR
33h 55m1 stop
Avianca Logo
22:05 - 00:10
LHR
-
EZE
30h 05m1 stop
£931Avianca
Mon, 6 Apr - Mon, 20 Apr
ITA Airways Logo
12:55 - 09:40
EZE
-
LHR
16h 45m1 stop
ITA Airways Logo
10:30 - 22:50
LHR
-
EZE
40h 20m1 stop
£935ITA Airways
Fri, 1 May - Fri, 15 May
Avianca Logo
06:50 - 15:35
EZE
-
LHR
28h 45m1 stop
Avianca Logo
22:05 - 15:20
LHR
-
EZE
21h 15m1 stop
£940Avianca
Fri, 1 May - Wed, 27 May
Avianca Logo
06:50 - 15:35
EZE
-
LHR
28h 45m1 stop
Avianca Logo
22:05 - 15:20
LHR
-
EZE
21h 15m1 stop
£941Avianca
Wed, 15 Apr - Mon, 27 Apr
Avianca Logo
06:50 - 15:35
EZE
-
LHR
28h 45m1 stop
Avianca Logo
22:05 - 05:45
LHR
-
EZE
35h 40m1 stop
£942Avianca
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.

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 £1,033 (return) on average. On the other hand, the most expensive months are July and September, where the average cost of round-trip tickets is £1,470 and £1,410 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 8 weeks before departure.

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

Low seasonMarch
Cheapest flight£459
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (3% more expensive 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 £459 for a one-way ticket and £913 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 £1,197 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 £1,382 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 3045 reviews
6.6Entertainment
6.7Comfort
7.1Boarding
7.7Crew
6.3Food
Airline reviews

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.

2.0 MediocreAnonymous, Oct 2025
MAD - LHR
Read more Iberia reviews

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.

Food was terrible. Going to Italy I gave benefit of the doubt however returning to the USA was no better. Rolls were frozen. Butter was frozen. Quality of entree poor

It was fortunate that the flight arrived in London in accordance with schedule, and the luggage was promptly transferred to the luggage carousel. However, I find it concerning that even minor issues in economy cabins are prevalent within the industry. American Airlines, in particular, appears to have the least legroom and feels more crowded due to the proximity of neighboring passengers. Additionally, the crew’s adherence to protocol is inconsistent. While they may enforce certain rules set by the FAA on a select few individuals, they often overlook numerous violations, such as failing to reset seat recline during landing.

Easy and organized getting in and out of the flight

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

Not only were the aircrafts spacious, but the crew was friendly and efficient. I was so gracious for the included meals on the longer flight (8+ hours).

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

The check-in baggage belt was broken (which is understandable) but what was surprising is they would check you in, give a baggage tag and then you have to drag the baggage to a different counter at the end of airport. No vegetarian option in in-flight meal. British Airways remains the worst big name airlines and always my last option while booking.

Decrepit planes, poor business class layout designed to maximize revenue, no decent movie selection.

Entertainment did not work from DC to London. Was not able to check in online during my return journey from Mumbai to London. Food was good!

The to flight was excellent but the return flight the seats seemed not cushioning enough.

⭐ British Airways Review — A Journey of Highs, Lows, and Lessons ⭐ I recently flew Business Class round-trip from Boston to Mumbai with British Airways, and my experience was a tale of two extremes — from disappointment to exceptional service, and then back to inconsistency. Boston → London: A Surprisingly Poor Start My journey began on a disappointing note. On a 6-hour Business Class flight, I was surprised to discover that there wasn’t a single proper vegetarian meal option available. I was offered a few bakery items only after repeatedly requesting something to eat. The flight attendant shrugged, offered no solution, and eventually — quite literally — threw some bread at me after much delay. This was not only disheartening, it was extremely surprising given my wonderful Business Class experience with BA last year. I stepped off that flight genuinely hungry and had to make a mad dash to the lounge just to get a proper meal. London → Mumbai: A Complete Turnaround The next sector restored my faith in British Airways. The entire crew was warm, welcoming, attentive, and genuinely caring. A special shoutout to Phiroze, Sara and the entire team serving the Business Class cabin — their professionalism, hospitality, and thoughtful service were extraordinary. They truly embodied what makes British Airways a global leader, and I am deeply grateful for the experience they provided. This is the BA I know and love. Mumbai → London: A Strange Meal Schedule This sector was generally fine, but the meal timing was puzzling. Lunch at 10:30 AM — for a Business cabin — felt unusual, and most passengers, including myself, barely touched it. The rest of the service was smooth, but the scheduling definitely needs a rethink. London → Boston: Mixed Experience Again The flight itself was decent, but the Business Lounge at Heathrow for this leg was a letdown. Arrived during lunch hours: no hot vegetarian options available Lounge area: dirty dishes everywhere Even after politely alerting the staff, the dishes were ignored and left uncleared For a premium cabin passenger — and at one of the world’s busiest international hubs — this was disappointing. Overall Impression My journey with British Airways felt inconsistent — two great sectors sandwiched between two that fell short of the BA standard. When BA is good, it is world-class. When it misses, the gap is noticeable. I genuinely hope the airline takes this feedback as constructive insight. I continue to believe in British Airways, and I commend the outstanding crew on the London → Mumbai sector — they were the highlight of my entire trip. With a little more focus on vegetarian meal availability, lounge service, and consistency across crews, BA can ensure every Business Class passenger experiences the premium journey they promise.

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

Information on your arrival and departure airports