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Cheap flights from Buenos Aires to London from £351

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — LON
9 Jul — 16 Jul1
1 adult

Cheapflights Tip: The best prices from Buenos Aires to London are usually found in November or February, booked 76 days in advance, depart on a Wednesday or Monday and return on a Tuesday

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 4 July 2025.

Round-trip from

£941

One-way from

£351

Popular in

July

Cheapest in

November

Average price

£1,366
LATAM Airlines
  • LATAM Airlines
  • 12/8-1/9
  • 2 total stops
  • 38h 50m total
  • Buenos Aires to London
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11/8
  • 11/8
  • 3 total stops
  • 45h 30m total
  • Buenos Aires to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Find flight deals from Buenos Aires to London

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 July 2025.

Tue 12/814:55AEP - LHR
1 stop20h 10mLATAM Airlines
Mon 1/921:20LHR - AEP
1 stop18h 40mLATAM Airlines
Deal found 3/7£941
Sat 20/1221:00EZE - LGW
1 stop18h 50mMultiple Airlines
Tue 6/114:35LGW - EZE
1 stop31h 35mMultiple Airlines
Deal found 3/7£941
Sat 11/1016:35EZE - LHR
3 stops33h 55mAir Canada
Mon 3/1119:25LHR - EZE
3 stops46h 45mAir Canada
Deal found 3/7£944
Sat 16/800:05AEP - LGW
3 stops26h 50mMultiple Airlines
Sun 24/810:40LGW - AEP
2 stops24h 00mMultiple Airlines
Deal found 2/7£944
Mon 7/701:40EZE - LHR
1 stop33h 55mMultiple Airlines
Mon 25/820:50LHR - EZE
2 stops31h 20mMultiple Airlines
Deal found 3/7£947
Sat 16/803:00AEP - LHR
1 stop32h 05mMultiple Airlines
Sun 24/821:20LHR - AEP
1 stop27h 40mMultiple Airlines
Deal found 3/7£948
Wed 8/1006:00EZE - LHR
1 stop29h 05mLATAM Airlines
Wed 26/1120:15LHR - EZE
1 stop31h 00mLATAM Airlines
Deal found 3/7£948
Tue 23/916:45EZE - LHR
1 stop18h 50mAvianca
Mon 6/1022:05LHR - EZE
1 stop21h 15mAvianca
Deal found 2/7£950
Mon 11/823:55EZE - LHR
1 stop17h 30mAir France
Mon 25/809:00LHR - EZE
1 stop16h 45mAir France
Deal found 3/7£957
Sun 17/812:55EZE - LCY
2 stops20h 15mITA Airways
Sun 24/819:15LCY - EZE
2 stops40h 15mITA Airways
Deal found 3/7£961
Sun 3/803:15AEP - LCY
2 stops35h 00mMultiple Airlines
Sun 24/815:25LCY - AEP
2 stops25h 15mMultiple Airlines
Deal found 1/7£961
Mon 10/1113:15EZE - LGW
1 stop16h 45mAir Europa
Thu 27/1110:00LGW - EZE
1 stop25h 50mAir Europa
Deal found 3/7£961

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 July 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

Tue 12/8

14:55-15:05

1 stop20h 10m

London Heathrow

Mon 1/9

21:20-12:00

1 stop18h 40m

£941

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Sat 20/12

21:00-18:50

1 stop18h 50m

London Gatwick

Tue 6/1

14:35-19:10

1 stop31h 35m

£941

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sat 11/10

16:35-06:30

3 stops33h 55m

London Heathrow

Mon 3/11

19:25-15:10

3 stops46h 45m

£944

Buenos AiresLondon

AEP - LGW

AEPLGW

Buenos Aires Jorge Newbery

Sat 16/8

00:05-06:55

3 stops26h 50m

London Gatwick

Sun 24/8

10:40-06:40

2 stops24h 00m

£944

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 19/10

06:40-15:05

1 stop28h 25m

London Heathrow

Fri 31/10

08:15-01:30

2 stops20h 15m

£947

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 8/10

06:00-15:05

1 stop29h 05m

London Heathrow

Wed 26/11

20:15-00:15

1 stop31h 00m

£948

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Sat 16/8

03:00-15:05

1 stop32h 05m

London Heathrow

Sun 24/8

21:20-21:00

1 stop27h 40m

£948

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Tue 23/9

16:45-15:35

1 stop18h 50m

London Heathrow

Wed 8/10

22:05-15:20

1 stop21h 15m

£950

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 11/8

23:55-21:25

1 stop17h 30m

London Heathrow

Mon 25/8

09:00-21:45

1 stop16h 45m

£957

Buenos AiresLondon

EZE - LCY

EZELCY

Buenos Aires Ministro Pistarini

Wed 6/8

06:20-10:05

2 stops23h 45m

London City

Sat 30/8

10:40-21:40

2 stops39h 00m

£958

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 48 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 27 June 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, January is the cheapest month in which you can book a flight from Buenos Aires to London (average of £112). Flying from Buenos Aires to London in August is currently the most expensive (average of £164). 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 July 2025.

It’s optimal to fly from Buenos Aires to London in the evening. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the morning.

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 Tuesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 July 2025.
Check out reviews from past customers who have flown with Emirates, Aerolineas Argentinas, andKLM 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.
Emirates
8.1
Very Good
3,287 reviews
Check prices

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.
Emirates
8.1
Very Good
3,287 reviews
Emirates
8.1
Very Good
3,287 reviews
Check prices

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.
Aerolineas Argentinas
8.1
Very Good
891 reviews
Emirates
8.1
Very Good
3,287 reviews
Check prices

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.
KLM
7.8
Good
1,367 reviews
Emirates
8.1
Very Good
3,287 reviews
Check prices

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.
Air France
7.5
Good
1,465 reviews
Emirates
8.1
Very Good
3,287 reviews
Check prices

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.
SWISS
7.5
Good
1,654 reviews
Emirates
8.1
Very Good
3,287 reviews
Check prices

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

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.

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

    LATAM Airlines, at £941, was found to be the cheapest airline from Buenos Aires to London.Alternate airlines flying return to your destination include Air Canada and Avianca. LATAM Airlines 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 Iberia, with whom users have recently found tickets for as low as £423. However, be on the lookout for offers from Avianca and United Airlines, 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, January is the cheapest month in which you can book a flight from Buenos Aires to London (average of £112). Flying from Buenos Aires to London in August is currently the most expensive (average of £164). 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 Buenos Aires?

Book flights to Buenos Aires if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Maidstone
Guildford
Chichester

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 4 airlines flying from Buenos Aires to London

Discover the top 4 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 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£808Average£960FlexibilityNo cancel feeOn-time77%
Search Air France flights
IberiaCheapest£931Average£1,174FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LATAM AirlinesCheapest£996Average£1,156FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
British AirwaysCheapest£1,043Average£1,405FlexibilityNo 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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