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

Our cheapest airline available from London to Buenos Aires is Air Canada. Our recent data shows that you can find tickets from as low as £782 on this airline. Additional options worth looking into are SWISS and ITA Airways, starting at £807 and £810 round-trip. Air Canada is 13% 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 £475 on Avianca. Other airlines that offer cheap prices include Aeromexico from £536 and United Airlines from £552 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 City - 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 £741. On average you can expect to pay £932. The most popular route, (London Heathrow - Buenos Aires Ministro Pistarini), can usually be booked for £748.

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 £24 per day to make their sightseeing more efficient.

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

Friday 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 41 days before your planned departure. Booking around this time can save you about 17% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £938 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £1,012.

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 £906 per person but you can even find prices for as low as £630. The most expensive prices can be found in the month of December. Opting for a November flight can save you 34% 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.

£474+ Flights from London to Buenos Aires

Cheapflights Tip: The best prices from London to Buenos Aires are usually found in November or March, booked 64 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from London to Buenos Aires

Round-trip from	£782
One-way from	£474
Popular in	December
Cheapest in	November
Average price	£858
Good round-trip deal	£945 or less
Good one-way deal	£760 or less

Air Canada
9/12-13/1
5 total stops
72h 50m total
London to Buenos Aires

Search Deals

29/8
2 total stops
33h 20m total
London to Buenos Aires

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£31 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 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 13 June 2025.

Tue 9/1208:55LHR - EZE

3 stops33h 30mAir Canada

Tue 13/117:00EZE - LHR

2 stops39h 20mAir Canada

Deal found 12/6£782

Tue 16/910:35LGW - AEP

2 stops30h 25mMultiple Airlines

Tue 30/906:20AEP - LGW

2 stops29h 15mMultiple Airlines

Deal found 12/6£784

Tue 16/918:45LHR - AEP

2 stops22h 15mMultiple Airlines

Tue 30/906:20AEP - LHR

2 stops32h 30mMultiple Airlines

Deal found 12/6£787

Sat 14/620:00LHR - EZE

1 stop24h 20mIberia

Sun 22/621:30EZE - LHR

1 stop37h 25mIberia

Deal found 12/6£792

Tue 28/1007:40LHR - EZE

3 stops33h 45mMultiple Airlines

Mon 10/1117:00EZE - LHR

2 stops39h 20mMultiple Airlines

Deal found 12/6£794

Sat 29/1106:00LHR - AEP

2 stops33h 00mSWISS

Sun 14/1214:55AEP - LHR

2 stops19h 05mSWISS

Deal found 11/6£807

Tue 25/1116:45LCY - EZE

1 stop19h 00mITA Airways

Tue 9/1222:00EZE - LCY

1 stop33h 55mITA Airways

Deal found 12/6£810

Sun 16/1108:55LHR - EZE

2 stops42h 55mSWISS

Sun 23/1107:15EZE - LHR

2 stops26h 45mSWISS

Deal found 11/6£810

Wed 2/720:00LHR - EZE

1 stop24h 20mBritish Airways

Sun 6/713:00EZE - LHR

1 stop16h 30mBritish Airways

Deal found 12/6£820

Thu 12/605:30LGW - EZE

2 stops44h 55mTurkish Airlines

Thu 19/623:55EZE - LGW

2 stops29h 45mTurkish Airlines

Deal found 11/6£824

Sat 25/1013:40LHR - EZE

1 stop22h 40mLufthansa

Sat 8/1123:55EZE - LHR

1 stop28h 35mLufthansa

Deal found 12/6£832

Tue 16/915:05LGW - EZE

1 stop23h 10mAmerican Airlines

Tue 30/921:15EZE - LGW

1 stop30h 55mAmerican Airlines

Deal found 12/6£839

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 13 June 2025.

Tue 9/1208:55LHR - EZE

3 stops33h 30mAir Canada

Tue 13/117:00EZE - LHR

2 stops39h 20mAir Canada

Deal found 12/6£782

Tue 16/910:35LGW - AEP

2 stops30h 25mMultiple Airlines

Tue 30/906:20AEP - LGW

2 stops29h 15mMultiple Airlines

Deal found 12/6£784

Sat 29/1106:00LHR - AEP

2 stops33h 00mSWISS

Sun 14/1214:55AEP - LHR

2 stops19h 05mSWISS

Deal found 11/6£807

Tue 25/1116:45LCY - EZE

1 stop19h 00mITA Airways

Tue 9/1222:00EZE - LCY

1 stop33h 55mITA Airways

Deal found 12/6£810

Wed 2/720:00LHR - EZE

1 stop24h 20mBritish Airways

Sun 6/713:00EZE - LHR

1 stop16h 30mBritish Airways

Deal found 12/6£820

Sat 25/1013:40LHR - EZE

1 stop22h 40mLufthansa

Sat 8/1123:55EZE - LHR

1 stop28h 35mLufthansa

Deal found 12/6£832

Tue 16/915:05LGW - EZE

1 stop23h 10mAmerican Airlines

Tue 30/921:15EZE - LGW

1 stop30h 55mAmerican Airlines

Deal found 12/6£839

Sun 16/1110:00LGW - EZE

1 stop25h 50mAir Europa

Sun 23/1113:15EZE - LGW

1 stop16h 45mAir Europa

Deal found 11/6£841

Tue 24/606:15LHR - EZE

1 stop19h 30mAir France

Mon 30/623:55EZE - LHR

1 stop17h 30mAir France

Deal found 12/6£844

Tue 2/921:20LHR - AEP

1 stop18h 40mLATAM Airlines

Sat 11/1018:20AEP - LHR

1 stop16h 45mLATAM Airlines

Deal found 12/6£855

Mon 1/922:05LHR - EZE

1 stop21h 15mAvianca

Tue 23/916:45EZE - LHR

1 stop18h 50mAvianca

Deal found 12/6£858

Thu 26/606:30LHR - EZE

2 stops19h 15mKLM

Sun 29/623:55EZE - LHR

2 stops27h 45mKLM

Deal found 12/6£860

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 13 June 2025.

Thu 3/721:55LHR - EZE

Nonstop16h 40mBritish Airways

Sun 13/712:15EZE - LHR

Nonstop15h 40mBritish Airways

Deal found 11/6£2,047

Sat 6/921:55LHR - EZE

Nonstop16h 40mIberia

Wed 24/912:15EZE - LHR

Nonstop15h 40mIberia

Deal found 12/6£4,530

Last-minute flights from London to Buenos Aires
Discover last-minute flight deals from London to Buenos Aires. Data last updated 13 June 2025 and is based on user searches.

Thu 12/605:30LGW - EZE

2 stops44h 55mTurkish Airlines

Thu 19/623:55EZE - LGW

2 stops29h 45mTurkish Airlines

Deal found 11/6£824

Thu 12/622:25LHR - EZE

2 stops28h 00mTurkish Airlines

Thu 19/623:55EZE - LHR

2 stops29h 55mTurkish Airlines

Deal found 11/6£855

Thu 12/616:30LHR - AEP

2 stops23h 30mMultiple Airlines

Thu 19/610:15AEP - LHR

2 stops22h 45mMultiple Airlines

Deal found 11/6£857

Sat 14/620:00LHR - EZE

1 stop24h 20mIberia

Sun 22/621:30EZE - LHR

1 stop37h 25mIberia

Deal found 12/6£792

Sun 15/622:05LHR - EZE

1 stop35h 40mAvianca

Mon 23/606:50EZE - LHR

1 stop28h 45mAvianca

Deal found 11/6£824

Tue 17/619:10LHR - EZE

1 stop25h 10mMultiple Airlines

Mon 14/718:10EZE - LHR

1 stop23h 35mMultiple Airlines

Deal found 11/6£849

Tue 17/617:30LHR - EZE

1 stop16h 55mLufthansa

Mon 14/716:40EZE - LHR

1 stop18h 00mLufthansa

Deal found 12/6£871

Tue 17/617:00LCY - EZE

1 stop17h 25mLufthansa

Mon 14/716:40EZE - LCY

1 stop19h 45mLufthansa

Deal found 12/6£893

Tue 17/611:35LGW - EZE

1 stop32h 45mIberia

Thu 26/621:30EZE - LGW

1 stop33h 25mIberia

Deal found 12/6£908

Tue 17/619:20LCY - EZE

2 stops19h 25mMultiple Airlines

Mon 14/706:15EZE - LCY

2 stops32h 20mMultiple Airlines

Deal found 12/6£968

Thu 19/606:15LHR - EZE

1 stop19h 30mAir France

Wed 2/723:55EZE - LHR

1 stop36h 40mAir France

Deal found 11/6£858

Thu 19/608:40LCY - EZE

1 stop24h 50mKLM

Wed 2/714:25EZE - LCY

1 stop25h 15mKLM

Deal found 11/6£873

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 13 June 2025.

Fri 29/810:00LGW - EZE

2 stops33h 20mMultiple Airlines

Deal found 12/6£474

Fri 29/806:15STN - EZE

1 stop26h 00mMultiple Airlines

Deal found 12/6£474

Fri 29/806:10LTN - EZE

3 stops33h 15mMultiple Airlines

Deal found 12/6£475

Mon 1/922:05LHR - EZE

1 stop21h 15mAvianca

Deal found 12/6£475

Mon 15/917:10LHR - AEP

2 stops28h 10mMultiple Airlines

Deal found 12/6£476

Tue 12/809:00LGW - AEP

3 stops47h 30mMultiple Airlines

Deal found 11/6£486

Mon 1/906:00LHR - EZE

3 stops23h 45mMultiple Airlines

Deal found 12/6£514

Sun 26/1022:30LHR - EZE

1 stop26h 25mAeromexico

Deal found 11/6£536

Mon 27/1007:40LHR - EZE

2 stops25h 40mUnited Airlines

Deal found 11/6£552

Wed 1/1022:05LHR - AEP

1 stop35h 35mAvianca

Deal found 12/6£565

Wed 25/616:50LCY - EZE

3 stops38h 35mMultiple Airlines

Deal found 11/6£570

Mon 1/916:50LCY - AEP

2 stops22h 40mMultiple Airlines

Deal found 12/6£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

LHR - EZE

LHREZE

London Heathrow

Tue 9/12

08:55-15:25

3 stops33h 30m

Buenos Aires Ministro Pistarini

Tue 13/1

17:00-11:20

2 stops39h 20m

£782

LondonBuenos Aires

LGW - AEP

LGWAEP

London Gatwick

Tue 16/9

10:35-13:00

2 stops30h 25m

Buenos Aires Jorge Newbery

Tue 30/9

06:20-15:35

2 stops29h 15m

£784

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Tue 16/9

18:45-13:00

2 stops22h 15m

Buenos Aires Jorge Newbery

Tue 30/9

06:20-18:50

2 stops32h 30m

£787

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Tue 28/10

07:40-14:25

3 stops33h 45m

Buenos Aires Ministro Pistarini

Mon 10/11

17:00-11:20

2 stops39h 20m

£794

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sat 29/11

06:00-12:00

2 stops33h 00m

Buenos Aires Jorge Newbery

Sun 14/12

14:55-13:00

2 stops19h 05m

£807

LondonBuenos Aires

LCY - EZE

LCYEZE

London City

Tue 25/11

16:45-08:45

1 stop19h 00m

Buenos Aires Ministro Pistarini

Tue 9/12

22:00-10:55

1 stop33h 55m

£810

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 16/11

08:55-00:50

2 stops42h 55m

Buenos Aires Ministro Pistarini

Sun 23/11

07:15-13:00

2 stops26h 45m

£810

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 2/7

20:00-16:20

1 stop24h 20m

Buenos Aires Ministro Pistarini

Sun 6/7

13:00-09:30

1 stop16h 30m

£820

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sat 25/10

13:40-08:20

1 stop22h 40m

Buenos Aires Ministro Pistarini

Sat 8/11

23:55-07:30

1 stop28h 35m

£832

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Tue 16/9

15:05-10:15

1 stop23h 10m

Buenos Aires Ministro Pistarini

Tue 30/9

21:15-08:10

1 stop30h 55m

£839

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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 64 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. Saturday 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 Emirates, Aerolineas Argentinas 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.

Emirates

8.1

Very Good

3,265 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Hoss,Mar 2025

TPE - DXB

One of Emirate claim to fame use to be excellent crew. But I think that has faded just a bit. While the first leg of my journey was impeccable, the second was good but not amazing. A few of the crew could have use a bit of smiley face, plus the sandwich served after take off was not good at all. I would have not served it at all.

Emirates

8.1

Very Good

3,265 reviews

Emirates

8.1

Very Good

3,265 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Hoss,Mar 2025

TPE - DXB

Aerolineas Argentinas

8.1

Very Good

872 reviews

Emirates

8.1

Very Good

3,265 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Hoss,Mar 2025

TPE - DXB

Delta

8.0

Very Good

7,950 reviews

Emirates

8.1

Very Good

3,265 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Hoss,Mar 2025

TPE - DXB

Alaska Airlines

8.0

Very Good

10,000 reviews

Emirates

8.1

Very Good

3,265 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Hoss,Mar 2025

TPE - DXB

KLM

7.8

Good

1,358 reviews

Emirates

8.1

Very Good

3,265 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Hoss,Mar 2025

TPE - DXB

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 Air Canada. Our recent data shows that you can find tickets from as low as £782 on this airline. Additional options worth looking into are SWISS and ITA Airways, starting at £807 and £810 round-trip. Air Canada is 13% 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 £475 on Avianca. Other airlines that offer cheap prices include Aeromexico from £536 and United Airlines from £552 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 City - 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 £741. On average you can expect to pay £932. The most popular route, (London Heathrow - Buenos Aires Ministro Pistarini), can usually be booked for £748.
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 £24 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£441	Average£1,023	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Europa	Cheapest£576	Average£840	FlexibilityNo cancel fee	On-time83%	Search Air Europa flights
ITA Airways	Cheapest£611	Average£1,075	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
Air Canada	Cheapest£637	Average£678	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Iberia	Cheapest£686	Average£1,005	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Finnair	Cheapest£728	Average£853	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
British Airways	Cheapest£752	Average£1,022	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£777	Average£1,130	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Lufthansa	Cheapest£794	Average£1,081	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
LATAM Airlines	Cheapest£856	Average£1,089	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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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.

Cheap flights from London to Buenos Aires from £474

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 29/8. 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 March, booked 64 days in advance, depart on a Tuesday or Wednesday 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 13 June 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 13 June 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 9 June 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 13 June 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 13 June 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 13 June 2025.