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Cheap flights from Buenos Aires to London from £454

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — LON
21 Nov — 28 Nov1
1 adult
1 adult, Economy

Find 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 22 October 2025.

Mon 27/1013:50EZE - LCY
1 stop23h 20mITA Airways
Wed 26/1108:25LCY - EZE
1 stop27h 20mITA Airways
Deal found 20/10£948
Thu 20/1114:55AEP - LHR
1 stop20h 10mLATAM Airlines
Tue 25/1120:15LHR - AEP
1 stop18h 30mLATAM Airlines
Deal found 21/10£948
Tue 11/1119:45EZE - STN
1 stop21h 45mMultiple Airlines
Thu 4/1216:05STN - EZE
2 stops35h 55mMultiple Airlines
Deal found 21/10£949
Sun 2/1113:50EZE - LCY
2 stops23h 15mITA Airways
Sat 21/207:25LCY - EZE
2 stops28h 20mITA Airways
Deal found 20/10£950
Fri 21/1114:55AEP - LHR
2 stops24h 20mLATAM Airlines
Thu 27/1120:15LHR - AEP
1 stop16h 25mLATAM Airlines
Deal found 20/10£950
Mon 10/1118:20AEP - LHR
2 stops19h 55mLATAM Airlines
Thu 27/1120:15LHR - AEP
1 stop16h 25mLATAM Airlines
Deal found 19/10£951
Sun 16/1107:10EZE - LHR
1 stop27h 55mLATAM Airlines
Tue 2/1220:15LHR - EZE
3 stops25h 28mLATAM Airlines
Deal found 21/10£951
Fri 21/1113:00EZE - LGW
1 stop21h 50mMultiple Airlines
Fri 28/1114:00LGW - EZE
2 stops41h 10mMultiple Airlines
Deal found 20/10£951
Fri 21/1113:00EZE - STN
1 stop21h 55mMultiple Airlines
Fri 28/1111:55STN - EZE
1 stop19h 15mMultiple Airlines
Deal found 20/10£951
Sun 2/1116:45EZE - LHR
2 stops39h 35mAir Canada
Sat 21/218:00LHR - EZE
2 stops24h 10mAir Canada
Deal found 20/10£952
Sat 22/1113:00EZE - STN
1 stop19h 30mMultiple Airlines
Wed 26/1106:30STN - EZE
2 stops23h 35mMultiple Airlines
Deal found 20/10£952
Mon 24/1118:20AEP - LHR
1 stop16h 45mLATAM Airlines
Mon 1/1220:15LHR - AEP
1 stop16h 25mLATAM Airlines
Deal found 22/10£953

Cheap 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 22 October 2025.

Round-trip from

£948

One-way from

£454

Popular in

July

Cheapest in

February

Average price

£1,150
ITA Airways
  • ITA Airways
  • 28/1-16/2
  • 2 total stops
  • 48h 10m total
  • Buenos Aires to London
Search Deals
15/4
  • 15/4
  • 3 total stops
  • 42h 15m total
  • Buenos Aires to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£55 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 October 2025
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 22 October 2025.
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

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 30/3

18:20-15:05

1 stop16h 45m

London Heathrow

Mon 13/4

17:00-16:05

2 stops27h 05m

£950

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 10/11

18:20-14:05

1 stop16h 45m

London Heathrow

Thu 27/11

20:15-14:00

1 stop20h 45m

£953

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Tue 18/11

18:20-14:05

1 stop16h 45m

London Heathrow

Tue 25/11

20:15-11:45

1 stop18h 30m

£953

Buenos AiresLondon

EZE - LTN

EZELTN

Buenos Aires Ministro Pistarini

Fri 21/11

13:00-11:50

1 stop19h 50m

London Luton

Fri 28/11

21:40-03:05

2 stops32h 25m

£959

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Thu 29/1

13:50-16:10

1 stop23h 20m

London City

Mon 16/2

19:05-19:50

2 stops27h 45m

£962

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 20/11

14:55-14:05

1 stop20h 10m

London Heathrow

Tue 25/11

20:15-19:40

2 stops26h 25m

£970

Buenos AiresLondon

EZE - STN

EZESTN

Buenos Aires Ministro Pistarini

Sun 9/11

13:15-07:40

1 stop15h 25m

London Stansted

Thu 27/11

20:05-01:00

2 stops31h 55m

£973

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Sun 23/11

19:45-14:40

1 stop15h 55m

London Gatwick

Fri 28/11

13:00-11:10

1 stop25h 10m

£975

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Fri 13/3

13:50-11:50

2 stops19h 00m

London City

Mon 23/3

13:15-08:45

2 stops22h 30m

£975

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Tue 27/1

22:00-21:50

2 stops20h 50m

London City

Wed 18/2

13:15-08:45

2 stops22h 30m

£976

Flights are sorted by cheapest return flights first.

Deals found on 20/10

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 17 October 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 £724). Flying from Buenos Aires to London in September is currently the most expensive (average of £1,069). 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 22 October 2025.

It’s optimal to fly from Buenos Aires to London in the evening. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight at midday.

What is the cheapest day to fly from Buenos Aires to London?

Use this chart to determine the cheapest time to fly return from Buenos Aires to London. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Buenos Aires to London flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 25% 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 £826.

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.

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 22 October 2025.
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
1,870 reviews
Check prices

Crew

8.0

Entertainment

7.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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
1,870 reviews
LATAM Airlines
7.5
Good
1,870 reviews
Check prices

Crew

8.0

Entertainment

7.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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
570 reviews
LATAM Airlines
7.5
Good
1,870 reviews
Check prices

Crew

8.0

Entertainment

7.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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
2,997 reviews
LATAM Airlines
7.5
Good
1,870 reviews
Check prices

Crew

8.0

Entertainment

7.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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
1,074 reviews
LATAM Airlines
7.5
Good
1,870 reviews
Check prices

Crew

8.0

Entertainment

7.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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
7,467 reviews
LATAM Airlines
7.5
Good
1,870 reviews
Check prices

Crew

8.0

Entertainment

7.0

Overall

7.5

Comfort

7.3

Boarding

7.6

Food

6.7

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 15h 55m. There are 6908 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?

    Iberia, at £950, was found to be the cheapest airline from Buenos Aires to London. An alternate airline flying to your destination would be British Airways. Iberia is priced at 19% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Buenos Aires to London one-way?

    The cheapest airline one-way is ITA Airways, with whom users have recently found tickets for as low as £464. However, be on the lookout for offers from United Airlines and Air Europa, as they are both options that can get you from Buenos Aires to London for a low price.

  • 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 £724). Flying from Buenos Aires to London in September is currently the most expensive (average of £1,069). 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
Slough
Gatwick
Hounslow
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Wembley
Deal
Ilford
Crawley
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Dartford
Guildford
Eastbourne

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 22 October 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£950Average£1,198FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£1,024Average£1,383FlexibilityNo cancel feeOn-time70%
Search British Airways 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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