How long is the flight from London to Buenos Aires?

A quick flight from London to Buenos Aires can take about 22h 45m. LEVEL provides one of the quickest options available for as low as £884. London and Buenos Aires are separated by a distance of 6908 mi. Both multi-stop and direct flights can be found to your destination and back.

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

Our cheapest airline available from London to Buenos Aires is Avianca. Our recent data shows that you can find tickets from as low as £693 on this airline. Additional options worth looking into are Iberia and LATAM Airlines, starting at £815 and £853 round-trip. Avianca is 30% 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 £413 on Avianca. Other airlines that offer cheap prices include LATAM Airlines from £538 and Iberia from £701 one-way.

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.

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).

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 £1,018. On average you can expect to pay £1,168. The most popular route, (London Heathrow - Buenos Aires Ministro Pistarini), can usually be booked for £492.

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

Consider British Airways, Avianca or Iberia when booking your flight. These represent the most popular airlines when flying from London to Buenos Aires.

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.

£465+ Cheap Flights from London to Buenos Aires

Cheapflights Tip: The best prices from London to Buenos Aires are usually found in May or April, booked 56 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from London to Buenos Aires

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 24 September 2026.

Sun 29/1120:45 -

1 stop25h 15m

Wed 9/1223:55 -

1 stop15h 45m

Deal found 20/9£869

Wed 25/1109:20 -

2 stops26h 30m

Sun 29/1113:15 -

2 stops27h 00m

Deal found 19/9£872

Sat 28/1120:50 -

1 stop23h 35m

Fri 11/1219:10 -

1 stop16h 40m

Deal found 20/9£872

Mon 30/1119:40 -

1 stop24h 45m

Sun 13/1213:50 -

1 stop18h 00m

Deal found 19/9£873

Tue 1/1208:20 -

1 stop22h 50m

Sun 13/1223:55 -

1 stop15h 45m

Deal found 20/9£873

Wed 25/1120:20 -

1 stop24h 05m

Sun 13/1219:10 -

1 stop16h 40m

Deal found 20/9£874

Tue 22/906:15 -

1 stop19h 35m

Sun 11/1015:05 -

1 stop22h 30m

Deal found 21/9£874

Wed 18/1119:40 -

1 stop24h 45m

Tue 8/1213:50 -

1 stop18h 00m

Deal found 20/9£875

Mon 21/919:45 -

1 stop30h 05m

Mon 12/1023:55 -

1 stop17h 30m

Deal found 21/9£875

Wed 18/1117:25 -

1 stop27h 00m

Tue 8/1213:50 -

1 stop15h 35m

Deal found 20/9£876

Sat 28/1120:50 -

1 stop23h 35m

Sun 13/1219:10 -

1 stop16h 40m

Deal found 20/9£876

Thu 26/1107:50 -

1 stop23h 20m

Mon 14/1215:05 -

1 stop19h 15m

Deal found 20/9£878

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 24 September 2026.

Wed 20/115:25 -

1 stop22h 45m

Mon 22/213:00 -

1 stop20h 20m

Deal found 22/9£884

Mon 1/221:30 -

1 stop22h 55m

Sun 28/219:10 -

1 stop22h 40m

Deal found 19/9£913

Wed 25/1119:40 -

1 stop24h 45m

Sun 29/1114:20 -

1 stop17h 30m

Deal found 23/9£914

Mon 30/1110:40 -

2 stops29h 00m

Sun 6/1203:15 -

2 stops27h 35m

Deal found 22/9£926

Wed 25/1119:30 -

2 stops40h 20m

Sun 29/1122:20 -

2 stops19h 40m

Deal found 23/9£977

Wed 14/1013:40 -

1 stop22h 20m

Wed 21/1021:00 -

1 stop30h 45m

Deal found 20/9£977

Mon 23/1119:30 -

3 stops43h 20m

Wed 25/1114:40 -

2 stops22h 40m

Deal found 23/9£1,014

Mon 16/1110:55 -

2 stops38h 30m

Tue 8/1223:55 -

2 stops37h 25m

Deal found 23/9£1,016

Sun 8/1121:35 -

1 stop35h 05m

Mon 30/1107:05 -

1 stop28h 30m

Deal found 20/9£1,039

Thu 3/1210:00 -

1 stop25h 50m

Mon 7/1213:15 -

1 stop24h 10m

Deal found 22/9£1,050

Wed 7/1009:20 -

1 stop24h 30m

Wed 21/1015:05 -

1 stop21h 35m

Deal found 23/9£1,209

Fri 9/1009:30 -

2 stops35h 50m

Thu 22/1013:30 -

2 stops37h 00m

Deal found 23/9£1,553

Fri 13/1106:00 -

2 stops35h 00m

Sun 22/1112:55 -

2 stops31h 00m

Deal found 19/9£914

Wed 25/1119:15 -

1 stop25h 10m

Sun 29/1114:20 -

1 stop20h 55m

Deal found 23/9£929

Fri 6/1110:45 -

2 stops25h 35m

Thu 12/1103:15 -

2 stops33h 30m

Deal found 22/9£962

Mon 23/1110:55 -

2 stops38h 30m

Mon 30/1123:55 -

2 stops31h 00m

Deal found 23/9£1,016

Mon 23/1106:15 -

1 stop17h 15m

Mon 30/1122:15 -

1 stop19h 35m

Deal found 23/9£925

Sat 10/1016:40 -

2 stops43h 20m

Mon 12/1021:00 -

2 stops43h 40m

Deal found 21/9£1,028

Tue 16/206:00 -

3 stops30h 20m

Thu 4/309:00 -

2 stops30h 55m

Deal found 21/9£972

Tue 19/117:25 -

1 stop18h 25m

Sat 6/213:15 -

1 stop16h 45m

Deal found 22/9£1,092

Sun 15/1107:45 -

2 stops35h 15m

Thu 26/1112:50 -

2 stops29h 00m

Deal found 21/9£929

Mon 16/1106:30 -

2 stops42h 55m

Tue 8/1223:55 -

2 stops30h 15m

Deal found 22/9£1,023

Fri 9/1020:40 -

1 stop23h 25m

Thu 22/1013:00 -

1 stop17h 50m

Deal found 23/9£1,065

Fri 9/1013:40 -

1 stop22h 20m

Thu 22/1021:00 -

2 stops43h 40m

Deal found 23/9£1,076

Tue 12/117:25 -

1 stop18h 25m

Thu 28/113:15 -

1 stop16h 45m

Deal found 24/9£1,108

Wed 4/1109:35 -

2 stops26h 45m

Tue 18/511:50 -

2 stops28h 35m

Deal found 19/9£1,016

Tue 19/118:40 -

2 stops20h 20m

Tue 23/212:55 -

3 stops24h 45m

Deal found 22/9£1,233

Tue 1/1221:30 -

1 stop22h 55m

Thu 10/1213:50 -

1 stop20h 55m

Deal found 22/9£941

Sun 10/113:45 -

1 stop21h 00m

Sun 24/122:40 -

2 stops17h 55m

Deal found 24/9£1,260

Wed 25/1110:55 -

2 stops38h 30m

Sun 29/1123:55 -

2 stops37h 25m

Deal found 21/9£1,050

Find flight deals from London to Buenos Aires

Round-trip from	£867
One-way from	£465
Popular in	December
Cheapest in	May
Average price	£937
Good round-trip deal	£1,086 or less

Air Europa
6/1-3/3
2 total stops
35h 10m total
London to Buenos Aires

Search Deals

3/11-31/12
3 total stops
50h 20m total
London to Buenos Aires

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£52 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

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

Search Deals

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

Cheapest return flight

LondonBuenos Aires

STN London Stansted - EZE Buenos Aires Ministro Pistarini

STNEZE

London Stansted

Sat 21/11

17:50-11:50

2 stops21h 00m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£486

LondonBuenos Aires

LTN London Luton - EZE Buenos Aires Ministro Pistarini

LTNEZE

London Luton

Thu 19/11

16:00-04:40

2 stops39h 40m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£498

LondonBuenos Aires

LTN London Luton - EZE Buenos Aires Ministro Pistarini

LTNEZE

London Luton

Wed 25/11

12:15-08:50

2 stops47h 35m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£498

LondonBuenos Aires

LTN London Luton - EZE Buenos Aires Ministro Pistarini

LTNEZE

London Luton

Sat 14/11

21:45-01:15

3 stops30h 30m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£530

LondonBuenos Aires

STN London Stansted - AEP Buenos Aires Jorge Newbery

STNAEP

London Stansted

Sat 21/11

12:40-12:00

3 stops26h 20m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-04:00

Nonstop0h 00m

£532

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 23/11

16:30-19:55

1 stop30h 25m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£545

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 23/11

06:35-07:20

2 stops27h 45m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£550

LondonBuenos Aires

STN London Stansted - AEP Buenos Aires Jorge Newbery

STNAEP

London Stansted

Thu 7/1

07:10-07:30

3 stops51h 20m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-04:00

Nonstop0h 00m

£550

LondonBuenos Aires

LTN London Luton - EZE Buenos Aires Ministro Pistarini

LTNEZE

London Luton

Tue 17/11

07:45-07:45

1 stop27h 00m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£552

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sat 14/11

16:40-07:20

2 stops41h 40m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£555

Flights are sorted by cheapest return flights first.

Deals found on 23/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

LON-BUE

STN-AEP

STN-EZE

LGW-AEP

LGW-EZE

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

LON-BUE

STN-AEP

STN-EZE

LGW-AEP

LGW-EZE

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 £878). Flying from London to Buenos Aires in December is currently the most expensive (average of £1,303). 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?

When flying from London to Buenos Aires, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London to Buenos Aires

The most flights from LON to BUE are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost for a return flight from London to Buenos Aires?

Airfare is typical for this route at the moment.

London to Buenos Aires flights typically cost between £853 and £1,144 in January.
The cheapest return price found within the last 5 days was £867 on Air Europa (6 Jan–3 Mar).

What’s the top stopover airport for flights from London to Buenos Aires?

Madrid (MAD) – chosen by Cheapflights users on 28% of one-stop itineraries from London to Buenos Aires on Cheapflights.

What’s the cheapest stopover airport for flights from London to Buenos Aires?

Bogotá (BOG) is the most affordable one-stop option, with an average return flight price of £736.

What’s the fastest stopover option from London to Buenos Aires?

Flights via Madrid (MAD) have the shortest average one-way travel time for one-stop routes: 16h 25m.

Which airport typically offers the quickest stopover for flights from London to Buenos Aires?

Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average stopover time of 1h 11m.

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 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Buenos Aires

Check out reviews from past customers who have flown with LATAM Airlines,Iberia, andLufthansa from London to Buenos Aires 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

1,980 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

LATAM Airlines

7.4

Good

1,980 reviews

LATAM Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

Iberia

7.0

Good

3,248 reviews

LATAM Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

Lufthansa

6.8

Okay

8,234 reviews

LATAM Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

British Airways

6.7

Okay

8,227 reviews

LATAM Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

Avianca

6.5

Okay

2,551 reviews

LATAM Airlines

7.4

Good

1,980 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

Related info for your journey

How long is the flight from London to Buenos Aires?
A quick flight from London to Buenos Aires can take about 22h 45m. LEVEL provides one of the quickest options available for as low as £884. London and Buenos Aires are separated by a distance of 6908 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from London to Buenos Aires round-trip?
Our cheapest airline available from London to Buenos Aires is Avianca. Our recent data shows that you can find tickets from as low as £693 on this airline. Additional options worth looking into are Iberia and LATAM Airlines, starting at £815 and £853 round-trip. Avianca is 30% 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 £413 on Avianca. Other airlines that offer cheap prices include LATAM Airlines from £538 and Iberia from £701 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 £1,018. On average you can expect to pay £1,168. The most popular route, (London Heathrow - Buenos Aires Ministro Pistarini), can usually be booked for £492.
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 £878). Flying from London to Buenos Aires in December is currently the most expensive (average of £1,303). 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

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Fly from London to Buenos Aires on these airlines

British Airways flights from London to Buenos Aires

Iberia flights from London to Buenos Aires

Air Europa flights from London to Buenos Aires

Top 7 airlines flying from London to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
Avianca	Cheapest£693	Average£802	FlexibilityNo cancel fee	On-time71%	Search Avianca flights
Iberia	Cheapest£815	Average£1,056	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
LATAM Airlines	Cheapest£853	Average£1,048	FlexibilityNo cancel fee	On-time81%	Search LATAM Airlines flights
American Airlines	Cheapest£877	Average£906	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
British Airways	Cheapest£888	Average£1,092	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Delta	Cheapest£933	Average£999	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Lufthansa	Cheapest£934	Average£1,115	FlexibilityNo cancel fee	On-time76%	Search Lufthansa 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 £465

This is the cheapest retur 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.

Cheap 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 24 September 2026.

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 24 September 2026.

Best flights from London to Buenos AiresDiscover 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 24 September 2026.

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 24 September 2026.

Direct flights from London to Buenos AiresExplore 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 24 September 2026.

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 24 September 2026.

Last-minute flights from London to Buenos AiresDiscover last-minute flight deals from London to Buenos Aires. Data last updated 24 September 2026 and is based on user searches.

Discover last-minute flight deals from London to Buenos Aires. Data last updated 24 September 2026 and is based on user searches.

One-way flights from London to Buenos AiresSearch for one-way flight options from London to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 24 September 2026.

Search for one-way flight options from London to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 24 September 2026.

Find flight deals from London to Buenos Aires

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

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

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 24 September 2026.

When flying from London to Buenos Aires, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London to Buenos Aires

The most flights from LON to BUE are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost for a return flight from London to Buenos Aires?

Airfare is typical for this route at the moment.

London to Buenos Aires flights typically cost between £853 and £1,144 in January.The cheapest return price found within the last 5 days was £867 on Air Europa (6 Jan–3 Mar).

What’s the top stopover airport for flights from London to Buenos Aires?

Share of one-stop return flights from London to Buenos Aires chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Madrid (MAD) – chosen by Cheapflights users on 28% of one-stop itineraries from London to Buenos Aires on Cheapflights.

What’s the cheapest stopover airport for flights from London to Buenos Aires?

Average return fare for one-stop flights from London to Buenos Aires, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Bogotá (BOG) is the most affordable one-stop option, with an average return flight price of £736.

What’s the fastest stopover option from London to Buenos Aires?

Shortest average travel time for one-stop one-way flights from London to Buenos Aires, 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: 16h 25m.

Which airport typically offers the quickest stopover for flights from London to Buenos Aires?

Average stopover duration for one-stop one-way flights from London to Buenos Aires, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average stopover time of 1h 11m.

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 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Buenos Aires

Check out reviews from past customers who have flown with LATAM Airlines,Iberia, andLufthansa from London to Buenos Aires 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.

Related info for your journey

How long is the flight from London to Buenos Aires?

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?

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?

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.

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 24 September 2026.

Alternative routes for London to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.

Other flights to Buenos Aires

Explore flights to Buenos Aires departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 24 September 2026.

Complete your trip

Complete your trip to Buenos Aires by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Argentina

Book a non-stop flight to one of these other cities located in Argentina.

Search flights from London to Buenos Aires by cabin class

Find flights from London to Buenos Aires, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Buenos Aires flights

Browse other London and Buenos Aires flight options. Last updated on 24 September 2026.

Other flights from London

Browse through other flights departing from London. Flights are based on user searches made on Cheapflights and were last updated on 24 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

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 24 September 2026.

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 24 September 2026.

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 24 September 2026.

Last-minute flights from London to Buenos Aires
Discover last-minute flight deals from London to Buenos Aires. Data last updated 24 September 2026 and is based on user searches.

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 24 September 2026.

London to Buenos Aires flights typically cost between £853 and £1,144 in January.
The cheapest return price found within the last 5 days was £867 on Air Europa (6 Jan–3 Mar).