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Cheap flights from Buenos Aires to London from £446

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — LON
3 Feb — 10 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buenos Aires to London

Enter your travel dates to find the best prices.

Cheapest flights from Buenos Aires to London
Explore the most affordable flight options available from Buenos Aires to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 January 2026.

Mon 4/506:50EZE - LHR
1 stop28h 45mAvianca
Mon 18/522:05LHR - EZE
1 stop21h 15mAvianca
Deal found 2/1£835
Tue 24/222:00EZE - LCY
1 stop33h 55mITA Airways
Mon 9/316:45LCY - EZE
1 stop30h 05mITA Airways
Deal found 1/1£837
Sat 2/516:35EZE - LHR
2 stops37h 25mAir Canada
Fri 15/514:05LHR - EZE
2 stops28h 25mAir Canada
Deal found 2/1£839
Fri 6/316:45EZE - LHR
2 stops36h 45mAir Canada
Mon 13/414:05LHR - EZE
3 stops52h 25mAir Canada
Deal found 2/1£840
Wed 29/416:30EZE - LHR
2 stops34h 05mAir Canada
Thu 28/508:30LHR - EZE
3 stops58h 00mAir Canada
Deal found 3/1£841
Fri 13/321:30EZE - LGW
2 stops29h 10mEthiopian Air
Mon 23/310:00LGW - EZE
2 stops36h 55mEthiopian Air
Deal found 3/1£842
Wed 29/416:30EZE - LHR
2 stops36h 05mMultiple Airlines
Thu 28/514:05LHR - EZE
2 stops38h 05mMultiple Airlines
Deal found 2/1£842
Sun 8/307:30EZE - LGW
2 stops29h 15mMultiple Airlines
Fri 17/407:10LGW - EZE
2 stops26h 35mMultiple Airlines
Deal found 2/1£842
Tue 7/406:50EZE - LGW
2 stops25h 25mMultiple Airlines
Wed 15/407:10LGW - EZE
2 stops26h 35mMultiple Airlines
Deal found 1/1£843
Mon 2/301:40EZE - LHR
2 stops26h 30mMultiple Airlines
Sun 3/509:30LHR - EZE
2 stops33h 00mMultiple Airlines
Deal found 3/1£844
Tue 8/913:25EZE - LTN
1 stop19h 20mMultiple Airlines
Fri 2/1012:30LTN - EZE
1 stop22h 15mMultiple Airlines
Deal found 3/1£844
Wed 25/316:45EZE - LHR
2 stops34h 45mAir Canada
Tue 7/414:10LHR - EZE
2 stops28h 20mAir Canada
Deal found 2/1£846

Find flight deals from Buenos Aires to London

Discover tips and strategies to find the most affordable flight options for your journey from Buenos Aires (BUE) to London (LON). 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 4 January 2026.

Round-trip from

£835

One-way from

£446

Popular in

January

Cheapest in

February

Average price

£1,379
Avianca
  • Avianca
  • 4/5-18/5
  • 2 total stops
  • 50h 00m total
  • Buenos Aires to London
Search Deals
8/4
  • 8/4
  • 3 total stops
  • 44h 15m total
  • Buenos Aires to London
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Buenos Aires to London 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 4 January 2026.
Use the filters below to find and compare flights from Buenos Aires to London that are best for you.

Fly from

Buenos Aires

Fly to

London

Route

Depart

Return

Price

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Tue 7/4

06:50-12:15

2 stops25h 25m

London Gatwick

Wed 15/4

07:10-05:45

2 stops26h 35m

£843

Buenos AiresLondon

AEP - LGW

AEPLGW

Buenos Aires Jorge Newbery

Sat 2/5

07:00-12:15

2 stops25h 15m

London Gatwick

Wed 13/5

07:10-05:40

2 stops26h 30m

£847

Buenos AiresLondon

AEP - LGW

AEPLGW

Buenos Aires Jorge Newbery

Fri 15/5

07:00-14:20

2 stops27h 20m

London Gatwick

Sat 30/5

08:10-05:40

2 stops25h 30m

£876

Buenos AiresLondon

EZE - LTN

EZELTN

Buenos Aires Ministro Pistarini

Sun 12/4

06:50-19:10

2 stops32h 20m

London Luton

Sat 25/4

07:00-05:45

2 stops26h 45m

£879

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 23/4

16:30-06:30

2 stops34h 00m

London Heathrow

Fri 1/5

14:10-15:20

2 stops29h 10m

£882

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Mon 9/3

13:50-21:50

2 stops29h 00m

London City

Thu 16/4

10:40-07:30

2 stops24h 50m

£904

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Thu 23/4

21:10-08:40

1 stop31h 30m

London Gatwick

Fri 1/5

15:25-19:25

1 stop32h 00m

£906

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 23/4

21:10-20:05

1 stop18h 55m

London Heathrow

Fri 1/5

20:50-19:25

1 stop26h 35m

£908

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Fri 13/3

13:50-11:50

2 stops19h 00m

London City

Mon 23/3

08:25-08:45

1 stop27h 20m

£928

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Mon 16/3

13:50-16:05

2 stops23h 15m

London City

Thu 26/3

11:30-08:45

2 stops24h 15m

£940

Flights are sorted by cheapest return flights first.

Deals found on 2/1

Showing 1-10 of 60 results
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Best time to book a flight from Buenos Aires to London

Have a flexible travel schedule? Discover the best time to fly to London from Buenos Aires 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 Buenos Aires to London

How far ahead should I book a flight from Buenos Aires to London?

Use this chart to determine the optimal time to book a return flight from Buenos Aires to London. Price data was last updated on 26 December 2025.

The best time to book flights from Buenos Aires to London is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Buenos Aires to London?

Currently, May is the cheapest month in which you can book a flight from Buenos Aires to London (average of £720). Flying from Buenos Aires to London in September is currently the most expensive (average of £1,036). 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 BUE to LON?

Find hourly flight availability from Buenos Aires to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 January 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Buenos Aires to London as you normally would.

Weekly flight availability from Buenos Aires to London

Explore weekly flight availability from Buenos Aires to London. 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 4 January 2026.

The most flights from BUE to LON are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost for a return flight from Buenos Aires to London?

What’s the top stopover airport for flights from Buenos Aires to London?

Share of one-stop return flights from Buenos Aires to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Sao Paulo (GRU) – chosen by Cheapflights users on 28% of one-stop itineraries from Buenos Aires to London on Cheapflights.

What’s the cheapest stopover airport for flights from Buenos Aires to London?

Average return fare for one-stop flights from Buenos Aires to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Rome (FCO) is the most affordable one-stop option, with an average return flight price of £821.

What’s the fastest stopover option from Buenos Aires to London?

Shortest average travel time for one-stop one-way flights from Buenos Aires to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Madrid (MAD) have the shortest average one-way travel time for one-stop routes: 15h 15m.

Which airport typically offers the quickest stopover for flights from Buenos Aires to London?

Average stopover duration for one-stop one-way flights from Buenos Aires to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Madrid (MAD) offer the fastest connection on this route, with an average stopover time of 1h 13m.

How often are flights from Buenos Aires to London delayed?

About 40% of weekly flights between Buenos Aires and London have experienced delays in the past year, with the average delay time being 139 minutes.

What is the most punctual flight time for Buenos Aires to London flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Buenos Aires to London flights?

Over the past year, Qatar Airways have had the lowest number of delays on this route, with just 50% of flights being delayed.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 4 January 2026.
Check out reviews from past customers who have flown with LATAM Airlines, Air Europa, andIberia from Buenos Aires to London 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.
LATAM Airlines
7.5
Good
1,899 reviews
Check prices

Boarding

7.6

Entertainment

7.0

Overall

7.5

Food

6.7

Comfort

7.3

Crew

8.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
LATAM Airlines
7.5
Good
1,899 reviews
LATAM Airlines
7.5
Good
1,899 reviews
Check prices

Boarding

7.6

Entertainment

7.0

Overall

7.5

Food

6.7

Comfort

7.3

Crew

8.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
Air Europa
7.0
Good
578 reviews
LATAM Airlines
7.5
Good
1,899 reviews
Check prices

Boarding

7.6

Entertainment

7.0

Overall

7.5

Food

6.7

Comfort

7.3

Crew

8.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
Iberia
7.0
Good
3,062 reviews
LATAM Airlines
7.5
Good
1,899 reviews
Check prices

Boarding

7.6

Entertainment

7.0

Overall

7.5

Food

6.7

Comfort

7.3

Crew

8.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
ITA Airways
6.7
Okay
1,122 reviews
LATAM Airlines
7.5
Good
1,899 reviews
Check prices

Boarding

7.6

Entertainment

7.0

Overall

7.5

Food

6.7

Comfort

7.3

Crew

8.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
British Airways
6.7
Okay
7,642 reviews
LATAM Airlines
7.5
Good
1,899 reviews
Check prices

Boarding

7.6

Entertainment

7.0

Overall

7.5

Food

6.7

Comfort

7.3

Crew

8.0

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!

Related info for your journey

Find useful and relevant information for your journey from Buenos Aires to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Buenos Aires to London?

    Departing from Buenos Aires to London will take you 16h 45m. There are 6896 mi between Buenos Aires and London. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Buenos Aires to London round-trip?

    British Airways, at £997, was found to be the cheapest airline from Buenos Aires to London. An alternate airline flying to your destination would be Iberia. British Airways is priced at 15% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular routes from Buenos Aires to London?

    When deciding which route to take from Buenos Aires to London consider Buenos Aires Ministro Pistarini - London Heathrow, Buenos Aires Ministro Pistarini - London Gatwick or Buenos Aires Jorge Newbery - London Heathrow as they are the most popular.

  • Can I find deals for flights from Buenos Aires to London that include hotel bookings?

    Yes. In addition to deals on Buenos Aires to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Buenos Aires to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buenos Aires to London.

  • Can I find deals for business class flights from Buenos Aires to London?

    Yes. Cheapflights offers flight deals from Buenos Aires to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buenos Aires to London?

    Currently, May is the cheapest month in which you can book a flight from Buenos Aires to London (average of £720). Flying from Buenos Aires to London in September is currently the most expensive (average of £1,036). 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.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Slough
Hounslow
Gatwick
Ilford
Wembley
Hayes
Brentford
Colchester
Watford
Crawley
Bedford
Chelmsford
Romford
Eastbourne
Ipswich
Bishop's Stortford
Guildford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Buenos Aires to London

Discover the top 2 airlines that operate flights from Buenos Aires to London. 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 4 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£997Average£1,383FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£1,089Average£1,190FlexibilityNo cancel feeOn-time77%
Search Iberia flights

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 Buenos Aires to London?

Deals for Buenos Aires to London 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 Buenos Aires to London?

Cheapflights simply makes it quick and affordable to book flights from Buenos Aires to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Buenos Aires to London with no change fees?

Certainly. Search results for flights to London from Buenos Aires shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Buenos Aires to London become cheaper?

Not ready to book yet? You can track prices for flights from Buenos Aires to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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