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

Our cheapest airline available from London to Buenos Aires is Iberia. Our recent data shows that you can find tickets from as low as £817 on this airline. Additional options worth looking into are Avianca and LATAM Airlines, starting at £822 and £829 round-trip. Iberia is 9% cheaper than the average price of flights available within the next 90 days to this destination.

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

One-way options have recently been found by users for as low as £498 on LATAM Airlines. Other airlines that offer cheap prices include Avianca from £552 and United Airlines from £565 one-way.

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

Most travelers choose London Heathrow - Buenos Aires Ministro Pistarini, London Heathrow - Buenos Aires Jorge Newbery or London Gatwick - Buenos Aires Ministro Pistarini when deciding on the best route from London to Buenos Aires.

What are the cheapest flights from London to Buenos Aires?

The cheapest flight price from London to Buenos Aires is £755. On average you can expect to pay £845. The most popular route, (London Heathrow - Buenos Aires Ministro Pistarini), can usually be booked for £747.

What are the most popular airlines that fly from London to Buenos Aires?

Consider Air Canada, Air France or Finnair when booking your flight. These represent the most popular airlines when flying from London to Buenos Aires.

Where are the most common stopover locations when flying from London to Buenos Aires?

Flights departing from London and landing in Buenos Aires stopover in Madrid most frequently.

Where are the least popular stopover locations for London to Buenos Aires flights?

London to Buenos Aires flights that have stopovers will least frequently stop in New York.

What are some popular things to do or see while on a stopover in Madrid?

Spain Building, Puerta del Sol, and Plaza Mayor are currently the most popular points of interest in Madrid at the moment. Those on a stopover in Madrid interested in visiting Spain Building, Puerta del Sol, or Plaza Mayor can do so by traveling 8.5 mi, 8.4 mi, and 8.6 mi, respectively from Madrid Barajas. Travellers can book a car hire at Madrid Barajas for about £28 per day to make their sightseeing more efficient.

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

Thursday flights are found to be more expensive to fly from London to Buenos Aires. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Buenos Aires.

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

To save on the cost of your flight from London to Buenos Aires, book at least 61 days before your planned departure. Booking around this time can save you about 15% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £922 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £1,068.

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

November is one of the best times of the year to fly to Buenos Aires from London. Prices for November average £900 per person but you can even find prices for as low as £639. The most expensive prices can be found in the month of December. Opting for a November flight can save you 36% on your journey compared to booking in December

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

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

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

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

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

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

£424+ Flights from London to Buenos Aires

Cheapflights Tip: The best prices from London to Buenos Aires are usually found in November or May, booked 90 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from London to Buenos Aires

Round-trip from	£817
One-way from	£424
Popular in	December
Cheapest in	November
Average price	£932
Good round-trip deal	£880 or less
Good one-way deal	£755 or less

Iberia
12/6-19/6
2 total stops
58h 15m total
London to Buenos Aires

Search Deals

19/5
3 total stops
32h 20m total
London to Buenos Aires

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£42 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to Buenos Aires (BUE).

Search Deals

Price to beat on a one-way flight from London (LON) to Buenos Aires (BUE).

Search Deals

Find flight deals from London to Buenos Aires

Cheapest flights from London to Buenos Aires
Explore the most affordable flight options available from London to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Thu 12/611:35LGW - EZE

1 stop36h 25mIberia

Thu 19/618:10EZE - LGW

1 stop21h 50mIberia

Deal found 28/4£817

Mon 9/622:05LHR - EZE

1 stop21h 15mAvianca

Tue 24/616:45EZE - LHR

1 stop18h 50mAvianca

Deal found 28/4£822

Sun 24/809:30LHR - EZE

1 stop24h 55mLufthansa

Tue 30/916:40EZE - LHR

1 stop19h 00mLufthansa

Deal found 28/4£825

Thu 8/516:50LCY - AEP

2 stops29h 30mMultiple Airlines

Wed 11/605:55AEP - LCY

2 stops24h 10mMultiple Airlines

Deal found 28/4£826

Sun 2/1111:10LHR - AEP

2 stops33h 00mAir Canada

Mon 1/1213:35AEP - LHR

2 stops38h 35mAir Canada

Deal found 28/4£827

Sun 2/1118:00LHR - EZE

2 stops24h 25mAir Canada

Wed 26/1117:00EZE - LHR

2 stops34h 30mAir Canada

Deal found 28/4£827

Thu 12/621:20LHR - AEP

1 stop18h 40mLATAM Airlines

Thu 19/614:55AEP - LHR

1 stop20h 10mLATAM Airlines

Deal found 28/4£829

Tue 3/608:15LGW - AEP

3 stops41h 25mMultiple Airlines

Tue 17/606:20AEP - LGW

2 stops22h 40mMultiple Airlines

Deal found 28/4£831

Mon 15/915:05LGW - EZE

1 stop23h 10mFinnair

Tue 30/921:15EZE - LGW

1 stop30h 55mFinnair

Deal found 28/4£836

Thu 11/915:05LGW - EZE

1 stop23h 10mAmerican Airlines

Tue 23/921:15EZE - LGW

1 stop30h 55mAmerican Airlines

Deal found 28/4£839

Mon 25/808:45LCY - EZE

1 stop25h 40mLufthansa

Tue 30/916:40EZE - LCY

1 stop21h 55mLufthansa

Deal found 28/4£843

Thu 13/1116:45LCY - EZE

1 stop30h 05mITA Airways

Sun 30/1113:45EZE - LCY

1 stop17h 20mITA Airways

Deal found 28/4£847

Best flights from London to Buenos Aires
Discover carefully curated flight deals from London to Buenos Aires that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 April 2025.

Thu 12/611:35LGW - EZE

1 stop36h 25mIberia

Thu 19/618:10EZE - LGW

1 stop21h 50mIberia

Deal found 28/4£817

Mon 9/622:05LHR - EZE

1 stop21h 15mAvianca

Tue 24/616:45EZE - LHR

1 stop18h 50mAvianca

Deal found 28/4£822

Thu 12/621:20LHR - AEP

1 stop18h 40mLATAM Airlines

Thu 19/614:55AEP - LHR

1 stop20h 10mLATAM Airlines

Deal found 28/4£829

Tue 3/608:15LGW - AEP

3 stops41h 25mMultiple Airlines

Tue 17/606:20AEP - LGW

2 stops22h 40mMultiple Airlines

Deal found 28/4£831

Mon 15/915:05LGW - EZE

1 stop23h 10mFinnair

Tue 30/921:15EZE - LGW

1 stop30h 55mFinnair

Deal found 28/4£836

Thu 11/915:05LGW - EZE

1 stop23h 10mAmerican Airlines

Tue 23/921:15EZE - LGW

1 stop30h 55mAmerican Airlines

Deal found 28/4£839

Wed 1/1012:05LHR - EZE

2 stops30h 25mAir Canada

Thu 16/1016:35EZE - LHR

2 stops34h 00mAir Canada

Deal found 28/4£842

Mon 25/808:45LCY - EZE

1 stop25h 40mLufthansa

Tue 30/916:40EZE - LCY

1 stop21h 55mLufthansa

Deal found 28/4£843

Mon 2/617:00LHR - EZE

1 stop18h 35mBritish Airways

Sun 29/613:00EZE - LHR

1 stop16h 30mBritish Airways

Deal found 28/4£855

Mon 2/610:00LGW - EZE

1 stop25h 35mAir Europa

Sun 29/612:15EZE - LGW

1 stop16h 45mAir Europa

Deal found 28/4£879

Tue 3/606:15LHR - EZE

1 stop19h 30mAir France

Sat 28/623:55EZE - LHR

1 stop28h 05mAir France

Deal found 28/4£882

Thu 8/511:45LHR - EZE

1 stop21h 45mKLM

Wed 11/614:25EZE - LHR

1 stop21h 50mKLM

Deal found 28/4£883

Direct flights from London to Buenos Aires
Explore direct flight options from London to Buenos Aires based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 April 2025.

Fri 5/922:10LHR - EZE

Nonstop16h 25mBritish Airways

Thu 30/1013:35EZE - LHR

Nonstop16h 00mBritish Airways

Deal found 29/4£940

Mon 30/622:00LHR - EZE

Nonstop16h 35mIberia

Fri 25/712:15EZE - LHR

Nonstop16h 00mIberia

Deal found 28/4£4,414

Last-minute flights from London to Buenos Aires
Discover last-minute flight deals from London to Buenos Aires. Data last updated 29 April 2025 and is based on user searches.

Fri 2/510:05LHR - EZE

2 stops25h 15mAmerican Airlines

Tue 13/522:30EZE - LHR

2 stops27h 50mAmerican Airlines

Deal found 28/4£867

Sat 3/518:30LHR - AEP

2 stops18h 50mMultiple Airlines

Thu 9/1013:40AEP - LHR

2 stops19h 00mMultiple Airlines

Deal found 28/4£853

Sun 4/508:55LHR - EZE

2 stops29h 20mAmerican Airlines

Tue 13/522:30EZE - LHR

2 stops27h 50mAmerican Airlines

Deal found 28/4£867

Mon 5/513:45LHR - EZE

2 stops20h 40mLufthansa

Thu 9/1016:40EZE - LHR

1 stop19h 00mLufthansa

Deal found 28/4£839

Mon 5/513:05LHR - EZE

1 stop24h 40mDelta

Mon 12/520:10EZE - LHR

2 stops30h 35mDelta

Deal found 28/4£917

Wed 7/515:05LGW - EZE

1 stop23h 10mAmerican Airlines

Mon 12/522:30EZE - LGW

2 stops28h 05mAmerican Airlines

Deal found 28/4£936

Thu 8/516:50LCY - AEP

2 stops29h 30mMultiple Airlines

Wed 11/605:55AEP - LCY

2 stops24h 10mMultiple Airlines

Deal found 28/4£826

Thu 8/511:45LHR - EZE

1 stop21h 45mKLM

Wed 11/614:25EZE - LHR

1 stop21h 50mKLM

Deal found 28/4£883

Thu 8/507:30LHR - EZE

1 stop26h 55mMultiple Airlines

Wed 11/613:30EZE - LHR

2 stops19h 30mMultiple Airlines

Deal found 28/4£885

Thu 8/521:20LHR - AEP

1 stop20h 40mLATAM Airlines

Wed 11/614:55AEP - LHR

1 stop20h 10mLATAM Airlines

Deal found 28/4£891

Thu 8/514:00LGW - AEP

2 stops27h 00mMultiple Airlines

Wed 11/605:55AEP - LGW

2 stops25h 20mMultiple Airlines

Deal found 28/4£914

Thu 8/511:35LGW - EZE

1 stop24h 00mBritish Airways

Wed 11/621:35EZE - LGW

1 stop18h 25mBritish Airways

Deal found 28/4£920

One-way flights from London to Buenos Aires
Search for one-way flight options from London to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 29 April 2025.

Mon 19/507:05STN - EZE

3 stops32h 20mMultiple Airlines

Deal found 27/4£424

Tue 27/521:20LGW - EZE

3 stops32h 25mMultiple Airlines

Deal found 28/4£428

Tue 27/521:20LGW - AEP

3 stops30h 00mMultiple Airlines

Deal found 28/4£428

Tue 20/517:50LCY - AEP

2 stops31h 50mMultiple Airlines

Deal found 27/4£434

Tue 2/917:10LHR - AEP

2 stops23h 30mMultiple Airlines

Deal found 28/4£436

Wed 20/807:00LTN - EZE

3 stops45h 26mMultiple Airlines

Deal found 28/4£454

Tue 27/521:20LHR - EZE

2 stops24h 52mLATAM Airlines

Deal found 28/4£498

Mon 25/806:00LHR - EZE

3 stops23h 45mMultiple Airlines

Deal found 28/4£503

Wed 20/822:05LHR - EZE

1 stop21h 15mAvianca

Deal found 28/4£552

Tue 2/916:40LHR - EZE

2 stops43h 20mUnited Airlines

Deal found 28/4£565

Sun 29/622:30LHR - EZE

1 stop26h 55mAeromexico

Deal found 28/4£580

Tue 20/516:50LCY - EZE

2 stops36h 55mMultiple Airlines

Deal found 27/4£587

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Thu 12/6

11:35-20:00

1 stop36h 25m

Buenos Aires Ministro Pistarini

Thu 19/6

18:10-20:00

1 stop21h 50m

£817

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 9/6

22:05-15:20

1 stop21h 15m

Buenos Aires Ministro Pistarini

Tue 24/6

16:45-15:35

1 stop18h 50m

£822

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 24/8

09:30-06:25

1 stop24h 55m

Buenos Aires Ministro Pistarini

Tue 30/9

16:40-15:40

1 stop19h 00m

£825

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Thu 12/6

21:20-12:00

1 stop18h 40m

Buenos Aires Jorge Newbery

Thu 19/6

14:55-15:05

1 stop20h 10m

£829

LondonBuenos Aires

LGW - AEP

LGWAEP

London Gatwick

Tue 3/6

08:15-21:40

3 stops41h 25m

Buenos Aires Jorge Newbery

Tue 17/6

06:20-09:00

2 stops22h 40m

£831

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Mon 15/9

15:05-10:15

1 stop23h 10m

Buenos Aires Ministro Pistarini

Tue 30/9

21:15-08:10

1 stop30h 55m

£836

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Thu 11/9

15:05-10:15

1 stop23h 10m

Buenos Aires Ministro Pistarini

Tue 23/9

21:15-08:10

1 stop30h 55m

£839

LondonBuenos Aires

LCY - EZE

LCYEZE

London City

Mon 25/8

08:45-06:25

1 stop25h 40m

Buenos Aires Ministro Pistarini

Tue 30/9

16:40-18:35

1 stop21h 55m

£843

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 1/10

12:40-14:30

3 stops29h 50m

Buenos Aires Ministro Pistarini

Thu 16/10

16:35-06:35

2 stops34h 00m

£845

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Mon 2/6

20:40-20:00

1 stop27h 20m

Buenos Aires Ministro Pistarini

Sun 29/6

13:00-10:50

1 stop17h 50m

£850

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 60 results

...

Best time to book a flight from London to Buenos Aires

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

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

The price you pay for your flight from London to Buenos Aires may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, May is the cheapest month in which you can book a flight from London to Buenos Aires (average of £1,012). Flying from London to Buenos Aires in December is currently the most expensive (average of £1,250). 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 LON to BUE?

It’s optimal to fly from London to Buenos Aires in the afternoon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the evening.

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

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

Rainfall in Buenos Aires by month

In terms of precipitation, rainfall in Buenos Aires ranges from 50.0 - 100.0 inches per month. January is typically the wettest month, when rainfall can reach 100.0 mm. June is typically the driest time to visit Buenos Aires when rainfall is around 50.0 mm.

Temperature in Buenos Aires by month

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Buenos Aires

Get a feel of what it's like to fly with Aerolineas Argentinas, Emirates and Delta from London to Buenos Aires by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aerolineas Argentinas

8.1

Very Good

860 reviews

Check prices

Reviews

1 / 4

10.0

Excellent

Firuz,Dec 2024

EZE - SLA

Great airline on time and friendly staff. Check-in and boarding even at EZE was easy and straight forward and fast.

Aerolineas Argentinas

8.1

Very Good

860 reviews

Aerolineas Argentinas

8.1

Very Good

860 reviews

Check prices

Reviews

1 / 4

10.0

Excellent

Firuz,Dec 2024

EZE - SLA

Great airline on time and friendly staff. Check-in and boarding even at EZE was easy and straight forward and fast.

Emirates

8.0

Very Good

3,213 reviews

Aerolineas Argentinas

8.1

Very Good

860 reviews

Check prices

Reviews

1 / 4

10.0

Excellent

Firuz,Dec 2024

EZE - SLA

Great airline on time and friendly staff. Check-in and boarding even at EZE was easy and straight forward and fast.

Delta

8.0

Very Good

7,929 reviews

Aerolineas Argentinas

8.1

Very Good

860 reviews

Check prices

Reviews

1 / 4

10.0

Excellent

Firuz,Dec 2024

EZE - SLA

Great airline on time and friendly staff. Check-in and boarding even at EZE was easy and straight forward and fast.

KLM

7.8

Good

1,333 reviews

Aerolineas Argentinas

8.1

Very Good

860 reviews

Check prices

Reviews

1 / 4

10.0

Excellent

Firuz,Dec 2024

EZE - SLA

Great airline on time and friendly staff. Check-in and boarding even at EZE was easy and straight forward and fast.

Finnair

7.6

Good

1,273 reviews

Aerolineas Argentinas

8.1

Very Good

860 reviews

Check prices

Reviews

1 / 4

10.0

Excellent

Firuz,Dec 2024

EZE - SLA

Great airline on time and friendly staff. Check-in and boarding even at EZE was easy and straight forward and fast.

Related info for your journey

What are the cheapest airlines flying from London to Buenos Aires round-trip?
Our cheapest airline available from London to Buenos Aires is Iberia. Our recent data shows that you can find tickets from as low as £817 on this airline. Additional options worth looking into are Avianca and LATAM Airlines, starting at £822 and £829 round-trip. Iberia is 9% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from London to Buenos Aires one-way?
One-way options have recently been found by users for as low as £498 on LATAM Airlines. Other airlines that offer cheap prices include Avianca from £552 and United Airlines from £565 one-way.
What are the most popular routes from London to Buenos Aires?
Most travelers choose London Heathrow - Buenos Aires Ministro Pistarini, London Heathrow - Buenos Aires Jorge Newbery or London Gatwick - Buenos Aires Ministro Pistarini when deciding on the best route from London to Buenos Aires.
What are the cheapest flights from London to Buenos Aires?
The cheapest flight price from London to Buenos Aires is £755. On average you can expect to pay £845. The most popular route, (London Heathrow - Buenos Aires Ministro Pistarini), can usually be booked for £747.
Where are the most common stopover locations when flying from London to Buenos Aires?
Flights departing from London and landing in Buenos Aires stopover in Madrid most frequently.
What are some popular things to do or see while on a stopover in Madrid?
Spain Building, Puerta del Sol, and Plaza Mayor are currently the most popular points of interest in Madrid at the moment. Those on a stopover in Madrid interested in visiting Spain Building, Puerta del Sol, or Plaza Mayor can do so by traveling 8.5 mi, 8.4 mi, and 8.6 mi, respectively from Madrid Barajas. Travellers can book a car hire at Madrid Barajas for about £28 per day to make their sightseeing more efficient.
Where are the least popular stopover locations for London to Buenos Aires flights?
London to Buenos Aires flights that have stopovers will least frequently stop in New York.
Can I find deals for flights from London to Buenos Aires that include hotel bookings?
Yes. In addition to deals on London to Buenos Aires flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Buenos Aires?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Buenos Aires.
Can I find deals for business class flights from London to Buenos Aires?
Yes. Cheapflights offers flight deals from London to Buenos Aires 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 London to Buenos Aires?
Currently, May is the cheapest month in which you can book a flight from London to Buenos Aires (average of £1,012). Flying from London to Buenos Aires in December is currently the most expensive (average of £1,250). 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

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from London to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest£448	Average£1,007	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Europa	Cheapest£586	Average£719	FlexibilityNo cancel fee	On-time83%	Search Air Europa flights
ITA Airways	Cheapest£621	Average£1,060	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
Air Canada	Cheapest£647	Average£689	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Iberia	Cheapest£698	Average£900	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Lufthansa	Cheapest£732	Average£1,090	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Finnair	Cheapest£740	Average£863	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
British Airways	Cheapest£755	Average£1,017	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£839	Average£1,121	FlexibilityNo cancel fee	On-time75%	Search KLM flights
LATAM Airlines	Cheapest£871	Average£1,187	FlexibilityNo cancel fee	On-time81%	Search LATAM Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Buenos Aires?

Deals for London to Buenos Aires 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 London to Buenos Aires?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Buenos Aires from London.

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

Yes, we can. To see specific flights from London to Buenos Aires with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

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

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Cheap flights from London to Buenos Aires from £424

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Buenos Aires are usually found in November or May, booked 90 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from London to Buenos Aires

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from London to Buenos Aires

Cheapest flights from London to Buenos AiresExplore the most affordable flight options available from London to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Explore the most affordable flight options available from London to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Buenos Aires that are best for you.

Best time to book a flight from London to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to Buenos Aires

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

Use this chart to determine the optimal time to book a return flight from London to Buenos Aires. Price data was last updated on 25 April 2025.

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

What is the cheapest time of day to fly from LON to BUE?

Find hourly flight availability from London 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 29 April 2025.

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

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

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

Reviews of airlines servicing Buenos Aires

Related info for your journey

Find useful and relevant information for your journey from London to Buenos Aires. 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 London to Buenos Aires round-trip?

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

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

What are the cheapest flights from London to Buenos Aires?

Where are the most common stopover locations when flying from London to Buenos Aires?

What are some popular things to do or see while on a stopover in Madrid?

Where are the least popular stopover locations for London to Buenos Aires flights?

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

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

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

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

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Fly from London to Buenos Aires on these airlines

Choose from the following airlines for your flight from London to Buenos Aires. Flights are based on user searches made on Cheapflights and were last updated on 29 April 2025.

Top 10 airlines flying from London to Buenos Aires

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Cheapest flights from London to Buenos Aires
Explore the most affordable flight options available from London to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.