Cheap flights from London Heathrow Airport to Buenos Aires from £534
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from London Heathrow to Buenos Aires are usually found in January or March, booked 61 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday
Cheap flight deals from Heathrow to Buenos Aires
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 July 2025.
Round-trip from | £786 |
---|---|
One-way from | £534 |
Popular in | December |
Cheapest in | January |
Average price | £1,031 |
Good round-trip deal | £942 or less |
Good one-way deal | £842 or less |
Find flight deals from Heathrow to Buenos Aires
Cheapest flights from Heathrow to Buenos AiresExplore the most affordable flight options available from Heathrow to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.
Explore the most affordable flight options available from Heathrow to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Heathrow to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Buenos Aires that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Mon 1/9
10:00-08:00
1 stop26h 00m
Buenos Aires Ministro Pistarini
Mon 22/9
21:00-09:20
2 stops32h 20m
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Fri 24/10
08:00-06:40
2 stops26h 40m
Buenos Aires Jorge Newbery
Sat 15/11
00:05-17:30
2 stops38h 25m
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Mon 15/9
22:05-05:40
1 stop35h 35m
Buenos Aires Jorge Newbery
Thu 23/10
07:00-15:35
1 stop28h 35m
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Tue 9/12
18:00-15:10
2 stops24h 10m
Buenos Aires Ministro Pistarini
Mon 2/3
16:45-06:30
2 stops34h 45m
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Tue 12/8
19:15-05:30
1 stop38h 15m
Buenos Aires Ministro Pistarini
Sun 17/8
23:55-16:35
1 stop36h 40m
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Sun 7/12
13:25-17:10
2 stops30h 45m
Buenos Aires Jorge Newbery
Sun 8/3
13:35-07:10
2 stops38h 35m
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Fri 12/9
18:40-10:45
2 stops20h 05m
Buenos Aires Ministro Pistarini
Wed 22/10
13:30-17:50
2 stops24h 20m
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Sat 15/11
20:05-11:40
2 stops42h 35m
Buenos Aires Jorge Newbery
Mon 23/2
14:55-19:15
2 stops25h 20m
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Wed 20/8
10:30-06:25
1 stop23h 55m
Buenos Aires Ministro Pistarini
Mon 10/11
17:45-16:50
1 stop20h 05m
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Sun 14/9
22:05-00:10
1 stop30h 05m
Buenos Aires Ministro Pistarini
Tue 21/10
16:45-15:35
1 stop18h 50m
Best time to book a flight from Heathrow to Buenos Aires
Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Heathrow with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Buenos Aires
How far ahead should I book a flight from London Heathrow Airport to Buenos Aires?
Use this chart to determine the optimal time to book a return flight from Heathrow to Buenos Aires. Price data was last updated on 27 June 2025.
Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London Heathrow Airport to Buenos Aires?
Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Buenos Aires (average of £1,012). Flying from London Heathrow Airport to Buenos Aires in December is currently the most expensive (average of £1,250). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LHR to BUE?
Find hourly flight availability from Heathrow to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 July 2025.
It’s typically best to fly out from London Heathrow Airport to Buenos Aires in the morning. Doing so could potentially save you 19% on the flight price compared to flying in the evening, which is usually more expensive.
What is the cheapest day to fly from London Heathrow Airport to Buenos Aires?
Use this chart to determine the cheapest time to fly return from Heathrow to Buenos Aires. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their London Heathrow Airport to Buenos Aires flight should consider departing on Sunday at midday when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Buenos Aires
Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated 3 July 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Buenos Aires, such as Air France, LATAM Airlines, andSWISS. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
SYLVIA,Apr 2025
TLV - CDG
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
SYLVIA,Apr 2025
TLV - CDG
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
SYLVIA,Apr 2025
TLV - CDG
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
SYLVIA,Apr 2025
TLV - CDG
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
SYLVIA,Apr 2025
TLV - CDG
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
SYLVIA,Apr 2025
TLV - CDG
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Heathrow to Buenos Aires
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Heathrow to Buenos Aires
Discover the top 8 airlines that operate flights from Heathrow to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 July 2025.
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How does Cheapflights help users find flights from Heathrow to Buenos Aires?
When you search for this flight from Heathrow to Buenos Aires, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Buenos Aires?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Buenos Aires.
Can Cheapflights find flights from Heathrow to Buenos Aires with no change fees?
Yes, we can. To see specific flights from Heathrow to Buenos Aires with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Heathrow to Buenos Aires become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Buenos Aires from Heathrow today and book when prices fit your budget.