Cheap flights from London to Buenos Aires from £516
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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from London to Buenos Aires are usually found in November or March, booked 40 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday
Cheap flight deals from London to Buenos Aires
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 1 July 2025.
Round-trip from | £776 |
---|---|
One-way from | £516 |
Popular in | December |
Cheapest in | November |
Average price | £966 |
Good round-trip deal | £939 or less |
Good one-way deal | £840 or less |
Find flight deals from London to Buenos Aires
Cheapest flights from London to Buenos AiresExplore the most affordable flight options available from London to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.
Explore the most affordable flight options available from London to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from London 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 1 July 2025.
Use the filters below to find and compare flights from London to Buenos Aires that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonBuenos Aires
LGW - AEP
LGWAEP
London Gatwick
Wed 5/11
17:25-13:00
2 stops22h 35m
Buenos Aires Jorge Newbery
Sun 23/11
09:00-09:00
2 stops21h 00m
LondonBuenos Aires
LGW - EZE
LGWEZE
London Gatwick
Mon 8/12
17:25-08:50
1 stop18h 25m
Buenos Aires Ministro Pistarini
Thu 15/1
13:15-16:25
1 stop24h 10m
LondonBuenos Aires
LGW - EZE
LGWEZE
London Gatwick
Wed 12/11
18:40-00:15
2 stops32h 35m
Buenos Aires Ministro Pistarini
Sun 23/11
07:00-17:50
2 stops31h 50m
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Mon 10/11
18:40-11:40
2 stops20h 00m
Buenos Aires Jorge Newbery
Mon 24/11
14:55-21:25
3 stops27h 30m
LondonBuenos Aires
LGW - AEP
LGWAEP
London Gatwick
Tue 11/11
18:40-11:40
2 stops20h 00m
Buenos Aires Jorge Newbery
Fri 28/11
14:55-17:50
2 stops23h 55m
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Wed 12/11
18:40-00:15
2 stops32h 35m
Buenos Aires Ministro Pistarini
Sun 23/11
07:00-13:00
2 stops27h 00m
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Sun 31/8
19:45-21:45
1 stop30h 00m
Buenos Aires Ministro Pistarini
Mon 22/9
23:55-21:25
1 stop17h 30m
LondonBuenos Aires
LCY - EZE
LCYEZE
London City
Wed 12/11
17:45-00:15
2 stops33h 30m
Buenos Aires Ministro Pistarini
Tue 25/11
07:00-12:50
2 stops26h 50m
LondonBuenos Aires
LCY - AEP
LCYAEP
London City
Tue 11/11
13:30-11:40
2 stops25h 10m
Buenos Aires Jorge Newbery
Tue 25/11
14:55-12:50
2 stops18h 55m
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Mon 27/10
21:40-05:40
1 stop35h 00m
Buenos Aires Jorge Newbery
Thu 13/11
07:00-14:35
1 stop28h 35m
Best time to book a flight from London to Buenos Aires
Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from London with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London to Buenos Aires
How far ahead should I book a flight from London to Buenos Aires?
Use this chart to determine the optimal time to book a return flight from London to Buenos Aires. Price data was last updated on 27 June 2025.
The price you pay for your flight from London to Buenos Aires may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from London to Buenos Aires?
Currently, May is the cheapest month in which you can book a flight from London to Buenos Aires (average of £1,012). Flying from London 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 LON to BUE?
Find hourly flight availability from London 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 1 July 2025.
It’s optimal to fly from London to Buenos Aires in the afternoon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the evening.
What is the cheapest day to fly from London to Buenos Aires?
Use this chart to determine the cheapest time to fly return from London to Buenos Aires. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their London to Buenos Aires flight should consider departing on Monday mornings 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.
Weekly flight availability from London to Buenos Aires
Explore weekly flight availability from London to Buenos Aires. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 1 July 2025.
The most flights from LON to BUE are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost for a return flight from London to Buenos Aires?
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 1 July 2025.
Check out reviews from past customers who have flown with Aerolineas Argentinas, Delta, andKLM from London to Buenos Aires to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Overall
Comfort
Entertainment
Crew
Boarding
Reviews
Firuz,Dec 2024
EZE - SLA
Food
Overall
Comfort
Entertainment
Crew
Boarding
Reviews
Firuz,Dec 2024
EZE - SLA
Food
Overall
Comfort
Entertainment
Crew
Boarding
Reviews
Firuz,Dec 2024
EZE - SLA
Food
Overall
Comfort
Entertainment
Crew
Boarding
Reviews
Firuz,Dec 2024
EZE - SLA
Food
Overall
Comfort
Entertainment
Crew
Boarding
Reviews
Firuz,Dec 2024
EZE - SLA
Food
Overall
Comfort
Entertainment
Crew
Boarding
Reviews
Firuz,Dec 2024
EZE - SLA
Related info for your journey
Find useful and relevant information for your journey from London to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Fly from London to Buenos Aires on these airlines
Choose from the following airlines for your flight from London to Buenos Aires. Flights are based on user searches made on Cheapflights and were last updated on 1 July 2025.
Top 10 airlines flying from London to Buenos Aires
Discover the top 10 airlines that operate flights from London 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 1 July 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Buenos Aires?
Deals for London to Buenos Aires flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from London to Buenos Aires?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Buenos Aires from London.
Can Cheapflights find flights from London to Buenos Aires with no change fees?
Yes, we can. To see specific flights from London 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 London to Buenos Aires become cheaper?
Not ready to book yet? You can track prices for flights from London to Buenos Aires on Cheapflights with our Price Alert feature and get notified when better prices are available.