Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Buenos Aires to London from £342

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — LON
1 Sep — 8 Sep1
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 2 August 2026.

Thu 6/812:15
EZE
-
STN
2 stops31h 40m
Multiple Airlines
Wed 19/808:20
STN
-
EZE
2 stops20h 45m
Multiple Airlines
Deal found 28/7£854
Thu 6/809:25
AEP
-
LTN
2 stops24h 40m
Multiple Airlines
Wed 19/818:10
LTN
-
AEP
2 stops19h 15m
Multiple Airlines
Deal found 28/7£865
Thu 15/1002:20
EZE
-
LTN
2 stops29h 30m
Multiple Airlines
Sun 1/1107:45
LTN
-
EZE
2 stops35h 15m
Multiple Airlines
Deal found 28/7£873
Thu 6/813:25
EZE
-
LGW
1 stop18h 15m
Multiple Airlines
Wed 19/810:25
LGW
-
EZE
2 stops24h 20m
Multiple Airlines
Deal found 28/7£873
Thu 15/1003:15
AEP
-
LTN
2 stops28h 35m
Multiple Airlines
Sun 1/1116:20
LTN
-
AEP
2 stops28h 00m
Multiple Airlines
Deal found 28/7£878
Thu 15/1003:15
AEP
-
LGW
2 stops28h 20m
Multiple Airlines
Sun 1/1108:30
LGW
-
AEP
2 stops35h 50m
Multiple Airlines
Deal found 28/7£878
Wed 4/1123:10
EZE
-
LTN
1 stop20h 20m
Multiple Airlines
Mon 23/1116:20
LTN
-
EZE
2 stops22h 30m
Multiple Airlines
Deal found 28/7£881
Mon 23/1113:50
EZE
-
STN
1 stop15h 05m
Multiple Airlines
Sat 5/1220:50
STN
-
EZE
1 stop23h 35m
Multiple Airlines
Deal found 28/7£882
Wed 25/1114:25
EZE
-
LGW
1 stop23h 00m
Multiple Airlines
Sat 5/1211:45
LGW
-
EZE
1 stop23h 00m
Multiple Airlines
Deal found 28/7£884
Tue 24/1113:50
EZE
-
STN
1 stop15h 15m
Multiple Airlines
Fri 4/1206:00
STN
-
EZE
1 stop18h 00m
Multiple Airlines
Deal found 31/7£884
Tue 24/1110:20
AEP
-
LHR
2 stops28h 10m
Multiple Airlines
Wed 9/1206:00
LHR
-
AEP
2 stops32h 30m
Multiple Airlines
Deal found 29/7£884
Wed 25/1114:25
EZE
-
LGW
1 stop23h 00m
Multiple Airlines
Wed 2/1211:45
LGW
-
EZE
1 stop23h 00m
Multiple Airlines
Deal found 31/7£884

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 2 August 2026.

Round-trip from

£873

One-way from

£342

Popular in

January

Cheapest in

March

Average price

£1,088

Good one-way deal

£1,041 or less
15/10-1/11
  • 15/10-1/11
  • 4 total stops
  • 64h 45m total
  • Buenos Aires to London
Search Deals
3/11
  • 3/11
  • 3 total stops
  • 57h 40m total
  • Buenos Aires to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a one-way flight from Buenos Aires (BUE) to London (LON).
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 2 August 2026.
Use the filters below to find and compare flights from Buenos Aires to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Buenos AiresLondon

EZE - LTN

EZELTN

Buenos Aires Ministro Pistarini

Thu 15/10

12:55-14:05

2 stops21h 10m

London Luton

Tue 20/10

08:00-02:30

3 stops46h 30m

£911

Buenos AiresLondon

AEP - LTN

AEPLTN

Buenos Aires Jorge Newbery

Sun 27/9

03:15-14:05

2 stops30h 50m

London Luton

Wed 14/10

18:10-01:40

2 stops35h 30m

£930

Buenos AiresLondon

EZE - STN

EZESTN

Buenos Aires Ministro Pistarini

Tue 20/10

12:15-21:00

2 stops28h 45m

London Stansted

Tue 27/10

08:20-07:45

1 stop26h 25m

£965

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 15/11

23:55-07:40

1 stop28h 45m

London Heathrow

Mon 30/11

12:05-07:20

1 stop22h 15m

£974

Buenos AiresLondon

EZE - LTN

EZELTN

Buenos Aires Ministro Pistarini

Tue 24/11

13:05-11:15

1 stop19h 10m

London Luton

Tue 1/12

07:45-07:45

1 stop27h 00m

£983

Buenos AiresLondon

AEP - LTN

AEPLTN

Buenos Aires Jorge Newbery

Mon 19/10

05:40-00:30

2 stops38h 50m

London Luton

Sun 8/11

16:20-18:00

2 stops28h 40m

£990

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 8/11

12:15-09:40

2 stops18h 25m

London Heathrow

Sat 28/11

16:30-19:55

1 stop30h 25m

£999

Buenos AiresLondon

EZE - LTN

EZELTN

Buenos Aires Ministro Pistarini

Tue 27/10

12:55-11:15

1 stop19h 20m

London Luton

Mon 9/11

07:45-07:45

1 stop27h 00m

£1,001

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Tue 10/11

10:45-16:25

2 stops26h 40m

London Gatwick

Thu 26/11

17:25-08:50

1 stop18h 25m

£1,004

Buenos AiresLondon

EZE - LGW

EZELGW

Buenos Aires Ministro Pistarini

Sun 22/11

13:15-09:00

1 stop16h 45m

London Gatwick

Sat 5/12

10:00-08:50

1 stop25h 50m

£1,025

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

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

Currently, March is the cheapest month in which you can book a flight from Buenos Aires to London (average of £1,002). Flying from Buenos Aires to London in January is currently the most expensive (average of £1,458). 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 2 August 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 2 August 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?

Airfare is below average for this route at the moment.
Buenos Aires to London flights typically cost between £941 and £1,220 in October.
The cheapest return price found within the last 5 days was £873 on Multiple Airlines (15 Oct–1 Nov).

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.

Madrid (MAD) – chosen by Cheapflights users on 27% 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.

Houston (IAH) is the most affordable one-stop option, with an average return flight price of £798.

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 05m.

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 Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 08m.

How often are flights from Buenos Aires to London delayed?

About 67% of weekly flights between Buenos Aires and London have experienced delays in the past year, with the average delay time being 79 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 in the early afternoon tend to experience delays more often.

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

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

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

The best time to book flights from Buenos Aires to London is 75 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.

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 2 August 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
7.4
Good
1,968 reviews
Check prices

Crew

8.0

Entertainment

7.0

Comfort

7.3

Boarding

7.5

Overall

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,Jun 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
LATAM Airlines
7.4
Good
1,968 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Crew

8.0

Entertainment

7.0

Comfort

7.3

Boarding

7.5

Overall

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,Jun 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
Air Europa
7.0
Good
631 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Crew

8.0

Entertainment

7.0

Comfort

7.3

Boarding

7.5

Overall

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,Jun 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
Iberia
7.0
Good
3,265 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Crew

8.0

Entertainment

7.0

Comfort

7.3

Boarding

7.5

Overall

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,Jun 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
ITA Airways
6.7
Okay
1,303 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Crew

8.0

Entertainment

7.0

Comfort

7.3

Boarding

7.5

Overall

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,Jun 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.
British Airways
6.7
Okay
8,135 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Crew

8.0

Entertainment

7.0

Comfort

7.3

Boarding

7.5

Overall

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

wizard,Jun 2026

GRU - DOH

It was a terrible experience, when I purchased the ticket, ot stated that I could have one carry on bag and one checked baggage, when I got to the airport they demanded a fee for the checked luggage of $328.00 or 1,705.00 bra real, of which I did not have and had to have a family member deposit it to me in order to pay this fee that was meant to be included, it caused a lot of stress for me and my family and I am very unhappy with this out right trickery. I feel something should be done to prevent other travelers from experiencing what I did, it is not fair.

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 18h 25m. There are 6915 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 is the cheapest airline to fly from Buenos Aires to London round-trip?

    British Airways, at £1,034, was found to be the cheapest airline from Buenos Aires to London.. British Airways is priced at 12% 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 Ministro Pistarini - London Stansted as they are the most popular.

  • What are the cheapest flights from Buenos Aires to London?

    On average you can expect to pay £1,041 for a flight from Buenos Aires to London. The cheapest flight overall is £1,041 while the most popular route, (Buenos Aires Ministro Pistarini - London Heathrow) is currently priced at £877.

  • 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, March is the cheapest month in which you can book a flight from Buenos Aires to London (average of £1,002). Flying from Buenos Aires to London in January is currently the most expensive (average of £1,458). 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
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Watford
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Aylesbury
Dover
Romford

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 airline flying from Buenos Aires to London

Discover the top airline 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 2 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£1,034Average£1,272FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.