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Cheap flights from London to Buenos Aires from £491
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 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BUE
13 Nov — 20 Nov1
Cheapflights Tip: The best prices from London to Buenos Aires are usually found in September or March, booked 60 days in advance, depart on a Monday or Tuesday and return on a Monday
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 14 October 2025.
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 14 October 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 14 October 2025.
Tue 25/1111:30LCY - EZE
2 stops24h 15mITA Airways
Tue 2/1213:50EZE - LCY
1 stop23h 20mITA Airways
Deal found 11/10£738
Wed 26/1108:25LCY - EZE
1 stop27h 20mITA Airways
Wed 3/1213:50EZE - LCY
1 stop18h 05mITA Airways
Deal found 12/10£749
Mon 17/1110:00LHR - EZE
1 stop24h 20mLufthansa
Thu 27/1122:05EZE - LHR
1 stop33h 10mLufthansa
Deal found 12/10£757
Fri 21/1119:25LHR - EZE
1 stop27h 55mAir France
Thu 4/1222:40EZE - LHR
1 stop19h 45mAir France
Deal found 13/10£760
Fri 21/1114:35LGW - EZE
2 stops32h 45mMultiple Airlines
Thu 4/1222:40EZE - LGW
2 stops21h 55mMultiple Airlines
Deal found 13/10£771
Mon 17/1107:40LHR - EZE
2 stops28h 40mUnited Airlines
Thu 27/1122:05EZE - LHR
1 stop30h 25mUnited Airlines
Deal found 12/10£776
Thu 27/1107:25LCY - EZE
2 stops28h 20mITA Airways
Fri 5/1222:00EZE - LCY
1 stop39h 10mITA Airways
Deal found 11/10£780
Fri 21/1112:00STN - EZE
2 stops35h 20mMultiple Airlines
Thu 4/1222:40EZE - STN
2 stops23h 00mMultiple Airlines
Deal found 13/10£780
Tue 18/1110:15LGW - EZE
2 stops39h 10mTurkish Airlines
Tue 9/1223:55EZE - LGW
2 stops30h 30mTurkish Airlines
Deal found 13/10£785
Mon 24/1108:25LCY - AEP
2 stops31h 15mMultiple Airlines
Thu 4/1209:00AEP - LCY
2 stops22h 55mMultiple Airlines
Deal found 12/10£786
Tue 2/1210:15LGW - EZE
2 stops39h 10mTurkish Airlines
Wed 10/1223:55EZE - LGW
2 stops30h 25mTurkish Airlines
Deal found 12/10£786
Wed 29/1010:00LHR - EZE
1 stop25h 20mUnited Airlines
Wed 12/1123:55EZE - LHR
1 stop31h 20mUnited Airlines
Deal found 13/10£786
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 14 October 2025.
Use the filters below to find and compare flights from London to Buenos Aires that are best for you.
Fly from
London
Fly to
Buenos Aires
Route
Depart
Return
Price
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Fri 28/11
10:00-07:20
1 stop24h 20m
Buenos Aires Ministro Pistarini
Fri 5/12
23:55-09:40
2 stops30h 45m
£784
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Tue 18/11
08:00-09:20
2 stops28h 20m
Buenos Aires Ministro Pistarini
Mon 24/11
22:05-05:55
2 stops28h 50m
£784
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Fri 7/11
10:00-07:20
1 stop24h 20m
Buenos Aires Ministro Pistarini
Tue 11/11
23:55-06:20
2 stops27h 25m
£784
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Thu 6/11
16:20-07:20
2 stops42h 00m
Buenos Aires Ministro Pistarini
Fri 14/11
23:55-07:30
1 stop28h 35m
£784
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Thu 6/11
16:20-07:20
2 stops42h 00m
Buenos Aires Ministro Pistarini
Tue 11/11
22:05-05:55
2 stops28h 50m
£784
LondonBuenos Aires
LGW - EZE
LGWEZE
London Gatwick
Wed 19/11
17:05-22:25
2 stops32h 20m
Buenos Aires Ministro Pistarini
Mon 1/12
23:55-16:10
2 stops37h 15m
£807
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Sun 9/11
21:40-05:40
1 stop35h 00m
Buenos Aires Jorge Newbery
Wed 12/11
07:00-14:35
1 stop28h 35m
£817
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Sun 9/11
21:40-05:40
1 stop35h 00m
Buenos Aires Jorge Newbery
Thu 13/11
07:00-14:35
1 stop28h 35m
£817
LondonBuenos Aires
LGW - EZE
LGWEZE
London Gatwick
Sat 22/11
17:05-22:25
2 stops32h 20m
Buenos Aires Ministro Pistarini
Mon 1/12
23:55-09:20
2 stops30h 25m
£827
LondonBuenos Aires
LTN - EZE
LTNEZE
London Luton
Wed 26/11
11:45-08:45
2 stops24h 00m
Buenos Aires Ministro Pistarini
Wed 3/12
13:50-15:00
2 stops22h 10m
£874
Showing 1-10 of 60 results
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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
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 10 October 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 60 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, March is the cheapest month in which you can book a flight from London to Buenos Aires (average of £572). Flying from London to Buenos Aires in July is currently the most expensive (average of £895). 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 14 October 2025.
It’s optimal to fly from London to Buenos Aires in the morning. By choosing this option you can save up to 14% 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 Friday afternoons when fares are most often at their lowest. Friday at midday 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 14 October 2025.
The most flights from LON to BUE are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost for a return flight from London to Buenos Aires?
What’s the top stopover airport for flights from London to Buenos Aires?
Share of one-stop return flights from London to Buenos Aires chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Madrid (MAD) – chosen by Cheapflights users on 37% of one-stop itineraries from London to Buenos Aires on Cheapflights.
What’s the cheapest stopover airport for flights from London to Buenos Aires?
Average return fare for one-stop flights from London to Buenos Aires, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Toronto (YYZ) is the most affordable one-stop option, with an average return flight price of £744.
What’s the fastest stopover option from London to Buenos Aires?
Shortest average travel time for one-stop one-way flights from London to Buenos Aires, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 16h 14m.
Which airport typically offers the quickest stopover for flights from London to Buenos Aires?
Average stopover duration for one-stop one-way flights from London to Buenos Aires, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Barcelona (BCN) offer the fastest connection on this route, with an average stopover time of 1h 23m.
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 14 October 2025.
Check out reviews from past customers who have flown with LATAM Airlines, Air Europa, andIberia 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.
Entertainment
7.0
Crew
8.0
Food
6.7
Boarding
7.6
Comfort
7.3
Overall
7.5
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Entertainment
7.0
Crew
8.0
Food
6.7
Boarding
7.6
Comfort
7.3
Overall
7.5
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Entertainment
7.0
Crew
8.0
Food
6.7
Boarding
7.6
Comfort
7.3
Overall
7.5
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Entertainment
7.0
Crew
8.0
Food
6.7
Boarding
7.6
Comfort
7.3
Overall
7.5
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Entertainment
7.0
Crew
8.0
Food
6.7
Boarding
7.6
Comfort
7.3
Overall
7.5
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Entertainment
7.0
Crew
8.0
Food
6.7
Boarding
7.6
Comfort
7.3
Overall
7.5
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
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 14 October 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 14 October 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.