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Cheap flights from the United Kingdom to Buenos Aires from £384
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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BUE
16 Nov — 23 Nov1
Find flight deals from United Kingdom to Buenos Aires
Cheapest flights from United Kingdom to Buenos AiresExplore the most affordable flight options available from United Kingdom to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.
Explore the most affordable flight options available from United Kingdom to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.
Tue 18/1121:40LHR - EZE
1 stop35h 10mAvianca
Fri 5/1201:40EZE - LHR
1 stop33h 55mAvianca
Deal found 15/10£727
Sun 16/1121:40LHR - EZE
1 stop21h 10mAvianca
Tue 27/107:30EZE - LHR
1 stop28h 05mAvianca
Deal found 16/10£729
Tue 18/1121:40LHR - AEP
1 stop35h 00mAvianca
Mon 8/1207:00AEP - LHR
1 stop28h 35mAvianca
Deal found 16/10£739
Tue 18/1121:40LHR - AEP
1 stop35h 00mAvianca
Thu 11/1207:00AEP - LHR
1 stop28h 35mAvianca
Deal found 15/10£741
Mon 1/1217:05LGW - EZE
1 stop32h 20mTurkish Airlines
Mon 8/1223:55EZE - LGW
1 stop30h 25mTurkish Airlines
Deal found 16/10£742
Tue 18/1121:40LHR - AEP
1 stop35h 00mAvianca
Wed 10/1207:00AEP - LHR
1 stop28h 35mAvianca
Deal found 16/10£744
Tue 18/1121:40LHR - EZE
1 stop35h 10mAvianca
Fri 12/1216:55EZE - LHR
1 stop18h 40mAvianca
Deal found 15/10£747
Fri 31/1008:00LHR - EZE
2 stops27h 20mLufthansa
Sun 7/1223:55EZE - LHR
2 stops30h 45mLufthansa
Deal found 16/10£752
Sun 16/1121:40LHR - EZE
1 stop21h 10mAvianca
Sat 29/1101:40EZE - LHR
1 stop33h 55mAvianca
Deal found 15/10£754
Mon 17/1112:05LHR - EZE
1 stop22h 15mLufthansa
Mon 24/1122:05EZE - LHR
2 stops32h 35mLufthansa
Deal found 17/10£755
Thu 13/1106:35LHR - EZE
1 stop42h 50mTurkish Airlines
Thu 20/1123:55EZE - LHR
2 stops37h 15mTurkish Airlines
Deal found 17/10£762
Tue 2/1207:40STN - EZE
2 stops28h 05mMultiple Airlines
Thu 11/1213:50EZE - STN
2 stops31h 50mMultiple Airlines
Deal found 16/10£765
Cheap flight deals from United Kingdom to Buenos Aires
Keep the following information in mind while searching for United Kingdom to Buenos Aires flight deals. Data was last updated 17 October 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from United Kingdom 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 17 October 2025.
Use the filters below to find and compare flights from the United Kingdom to Buenos Aires that are best for you.
Fly from
United Kingdom
Fly to
Buenos Aires
Route
Depart
Return
Price
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Sun 12/4
22:05-05:40
1 stop35h 35m
Buenos Aires Jorge Newbery
Thu 16/4
07:00-15:35
1 stop28h 35m
£756
LondonBuenos Aires
LHR - AEP
LHRAEP
London Heathrow
Wed 8/4
22:05-05:40
1 stop35h 35m
Buenos Aires Jorge Newbery
Thu 16/4
07:00-15:35
1 stop28h 35m
£756
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Thu 6/11
16:20-09:20
2 stops44h 00m
Buenos Aires Ministro Pistarini
Tue 11/11
22:05-05:55
2 stops28h 50m
£778
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Tue 18/11
10:00-07:20
1 stop24h 20m
Buenos Aires Ministro Pistarini
Sun 7/12
23:55-07:30
1 stop28h 35m
£782
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Sun 16/11
10:00-07:20
1 stop24h 20m
Buenos Aires Ministro Pistarini
Tue 25/11
23:55-09:40
2 stops30h 45m
£782
LondonBuenos Aires
LHR - EZE
LHREZE
London Heathrow
Tue 18/11
07:25-09:20
2 stops28h 55m
Buenos Aires Ministro Pistarini
Thu 27/11
23:55-06:20
2 stops27h 25m
£782
LondonBuenos Aires
LGW - EZE
LGWEZE
London Gatwick
Mon 1/12
06:25-22:25
2 stops43h 00m
Buenos Aires Ministro Pistarini
Mon 8/12
23:55-22:35
2 stops43h 40m
£783
ManchesterBuenos Aires
MAN - AEP
MANAEP
Manchester
Tue 10/3
11:15-21:00
2 stops60h 45m
Buenos Aires Jorge Newbery
Tue 24/3
14:55-17:55
2 stops24h 00m
£783
LondonBuenos Aires
LCY - AEP
LCYAEP
London City
Mon 1/12
16:45-02:20
2 stops36h 35m
Buenos Aires Jorge Newbery
Sun 7/12
03:15-16:10
2 stops33h 55m
£791
LondonBuenos Aires
LGW - EZE
LGWEZE
London Gatwick
Wed 19/11
06:25-22:25
2 stops43h 00m
Buenos Aires Ministro Pistarini
Mon 1/12
23:55-09:20
2 stops30h 25m
£798
Showing 1-10 of 60 results
Best time to book a flight from United Kingdom to Buenos Aires
Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from United Kingdom 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 the United Kingdom to Buenos Aires
What is the cheapest month to book a flight from United Kingdom to Buenos Aires?
Currently, March is the cheapest month in which you can book a flight from United Kingdom to Buenos Aires (average of £568). Flying from United Kingdom to Buenos Aires in April is currently the most expensive (average of £813). 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 GB to BUE?
Find hourly flight availability from United Kingdom 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 17 October 2025.
It’s optimal to fly from United Kingdom to Buenos Aires in the evening. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight in the morning.
What is the cheapest day to fly from United Kingdom to Buenos Aires?
Use this chart to determine the cheapest time to fly return from United Kingdom to Buenos Aires. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their United Kingdom to Buenos Aires flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday at midday 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 17 October 2025.
Check out reviews from past customers who have flown with LATAM Airlines, Air Europa, andIberia from the United Kingdom 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.
Comfort
7.3
Entertainment
7.0
Overall
7.5
Crew
8.0
Boarding
7.6
Food
6.7
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Comfort
7.3
Entertainment
7.0
Overall
7.5
Crew
8.0
Boarding
7.6
Food
6.7
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Comfort
7.3
Entertainment
7.0
Overall
7.5
Crew
8.0
Boarding
7.6
Food
6.7
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Comfort
7.3
Entertainment
7.0
Overall
7.5
Crew
8.0
Boarding
7.6
Food
6.7
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Comfort
7.3
Entertainment
7.0
Overall
7.5
Crew
8.0
Boarding
7.6
Food
6.7
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Comfort
7.3
Entertainment
7.0
Overall
7.5
Crew
8.0
Boarding
7.6
Food
6.7
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 United Kingdom 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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Alternative routes for United Kingdom to Buenos Aires
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from United Kingdom to Buenos Aires
Discover the top 10 airlines that operate flights from United Kingdom 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 17 October 2025.
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How does Cheapflights help users find flights from United Kingdom to Buenos Aires?
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Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Buenos Aires?
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Can Cheapflights find flights from United Kingdom to Buenos Aires with no change fees?
Need flexible booking options for your flight to Buenos Aires from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from United Kingdom to Buenos Aires become cheaper?
Yes! Start tracking prices for United Kingdom to Buenos Aires flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.