How long is the flight from London to Buenos Aires?

A quick flight from London to Buenos Aires can take about 29h 30m. United Airlines provides one of the quickest options available for as low as £973. London and Buenos Aires are separated by a distance of 6890 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 £695 on this airline. Additional options worth looking into are Iberia and LATAM Airlines, starting at £835 and £856 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 £414 on Avianca. Other airlines that offer cheap prices include LATAM Airlines from £540 and Iberia from £703 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 £906. On average you can expect to pay £1,171. The most popular route, (London Heathrow - Buenos Aires Ministro Pistarini), can usually be booked for £781.

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.

£531+ Cheap Flights from London to Buenos Aires

Cheapflights Tip: The best prices from London to Buenos Aires are usually found in May or March, 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 4 October 2026.

Fri 11/1217:00 -

1 stop20h 35m

Thu 11/223:35 -

1 stop28h 10m

Deal found 29/9£913

Sat 14/1120:15 -

1 stop20h 45m

Sat 21/1121:45 -

1 stop37h 20m

Deal found 30/9£932

Sat 28/1121:35 -

1 stop21h 05m

Wed 3/216:50 -

1 stop18h 45m

Deal found 30/9£932

Mon 23/1106:50 -

2 stops24h 50m

Wed 25/1112:45 -

2 stops23h 20m

Deal found 30/9£933

Fri 13/1121:35 -

1 stop29h 55m

Fri 20/1107:25 -

1 stop28h 10m

Deal found 29/9£933

Sat 14/1106:20 -

2 stops25h 00m

Sat 21/1109:00 -

2 stops29h 00m

Deal found 30/9£935

Tue 24/1110:25 -

2 stops25h 25m

Tue 8/1213:55 -

2 stops26h 50m

Deal found 30/9£935

Fri 13/1116:25 -

2 stops22h 25m

Mon 23/1113:55 -

2 stops23h 30m

Deal found 29/9£935

Sun 4/1022:05 -

1 stop35h 35m

Mon 7/1207:05 -

1 stop28h 30m

Deal found 29/9£935

Thu 19/1110:10 -

2 stops29h 30m

Thu 3/1213:35 -

2 stops28h 00m

Deal found 29/9£935

Sun 4/1022:05 -

1 stop35h 35m

Mon 7/1201:40 -

1 stop33h 55m

Deal found 29/9£935

Fri 20/1111:10 -

3 stops28h 30m

Sat 28/1112:55 -

2 stops22h 15m

Deal found 29/9£936

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 4 October 2026.

Fri 13/1106:35 -

2 stops29h 45m

Sun 15/1122:05 -

2 stops28h 50m

Deal found 1/10£960

Sun 22/1108:30 -

3 stops28h 10m

Tue 1/1210:35 -

2 stops22h 55m

Deal found 1/10£969

Thu 18/210:10 -

2 stops29h 30m

Mon 1/313:35 -

2 stops41h 15m

Deal found 29/9£973

Wed 18/1110:55 -

2 stops38h 30m

Wed 25/1123:55 -

2 stops31h 00m

Deal found 3/10£1,006

Mon 1/210:10 -

2 stops26h 30m

Sun 28/221:30 -

2 stops31h 15m

Deal found 1/10£1,052

Mon 23/1119:30 -

3 stops43h 20m

Sat 28/1102:05 -

2 stops31h 55m

Deal found 30/9£1,083

Mon 1/217:25 -

1 stop18h 25m

Sun 28/213:15 -

1 stop16h 45m

Deal found 1/10£1,086

Mon 16/1117:50 -

1 stop16h 55m

Tue 8/1217:00 -

1 stop23h 35m

Deal found 1/10£1,140

Tue 20/1011:30 -

2 stops27h 00m

Tue 23/211:45 -

2 stops28h 15m

Deal found 30/9£1,158

Sun 18/1013:00 -

1 stop24h 55m

Sun 25/1023:10 -

1 stop34h 10m

Deal found 1/10£1,502

Thu 3/1219:30 -

2 stops27h 25m

Sun 10/122:20 -

2 stops19h 40m

Deal found 3/10£1,635

Tue 17/1107:45 -

1 stop23h 25m

Mon 7/1215:05 -

1 stop19h 45m

Deal found 29/9£971

Wed 25/1116:35 -

2 stops47h 05m

Sat 28/1103:20 -

2 stops27h 30m

Deal found 3/10£978

Mon 23/1110:55 -

2 stops38h 30m

Wed 9/1223:55 -

2 stops37h 25m

Deal found 1/10£1,009

Wed 14/1015:20 -

2 stops44h 40m

Wed 21/1021:00 -

2 stops28h 55m

Deal found 3/10£1,020

Wed 27/112:30 -

2 stops34h 10m

Wed 10/209:25 -

2 stops35h 20m

Deal found 2/10£990

Tue 10/1106:00 -

3 stops30h 20m

Tue 24/1103:15 -

2 stops30h 25m

Deal found 30/9£1,022

Sun 15/1110:10 -

2 stops39h 15m

Mon 7/1223:55 -

2 stops37h 35m

Deal found 29/9£1,028

Mon 16/1117:50 -

1 stop16h 55m

Mon 23/1117:00 -

1 stop21h 20m

Deal found 1/10£1,167

Sun 22/1107:45 -

1 stop23h 25m

Tue 1/1223:55 -

1 stop17h 55m

Deal found 1/10£990

Tue 1/1219:15 -

1 stop16h 25m

Tue 29/1214:20 -

1 stop15h 30m

Deal found 3/10£1,234

Sun 28/214:25 -

3 stops24h 35m

Sun 7/312:55 -

2 stops21h 05m

Deal found 30/9£1,243

Thu 24/1210:05 -

1 stop25h 45m

Tue 26/113:15 -

1 stop16h 50m

Deal found 29/9£1,269

Wed 25/1117:25 -

2 stops32h 00m

Sun 29/1123:55 -

2 stops30h 15m

Deal found 29/9£1,052

Thu 24/1210:00 -

1 stop24h 20m

Wed 27/123:55 -

2 stops27h 00m

Deal found 29/9£1,197

Thu 19/1110:10 -

2 stops29h 30m

Thu 3/1209:00 -

2 stops21h 50m

Deal found 3/10£1,092

Wed 14/1009:55 -

2 stops27h 50m

Fri 16/1020:10 -

2 stops31h 00m

Deal found 3/10£1,328

Fri 20/1109:10 -

1 stop22h 30m

Thu 3/1222:35 -

1 stop19h 30m

Deal found 29/9£1,005

Sun 29/1117:50 -

1 stop16h 55m

Sun 20/1217:00 -

1 stop23h 35m

Deal found 2/10£1,265

Mon 22/210:55 -

2 stops38h 30m

Mon 15/323:55 -

2 stops31h 00m

Deal found 2/10£1,052

Find flight deals from London to Buenos Aires

Round-trip from	£913
One-way from	£531
Popular in	December
Cheapest in	May
Average price	£1,027
Good round-trip deal	£1,040 or less

American Airlines
11/12-11/2
2 total stops
48h 45m total
London to Buenos Aires

Search Deals

1/11-31/12
3 total stops
51h 39m total
London to Buenos Aires

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£48 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

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

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBuenos Aires

STN London Stansted - EZE Buenos Aires Ministro Pistarini

STNEZE

London Stansted

Fri 5/2

06:00-04:10

1 stop25h 10m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£538

LondonBuenos Aires

LTN London Luton - EZE Buenos Aires Ministro Pistarini

LTNEZE

London Luton

Wed 6/1

21:45-22:25

2 stops51h 40m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£546

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Fri 27/11

06:35-07:20

2 stops27h 45m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£548

LondonBuenos Aires

LTN London Luton - EZE Buenos Aires Ministro Pistarini

LTNEZE

London Luton

Sat 6/2

21:30-04:10

1 stop33h 40m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£549

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sat 21/11

16:40-07:20

2 stops41h 40m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£554

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sun 6/12

12:05-07:20

2 stops46h 15m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£556

LondonBuenos Aires

LGW London Gatwick - AEP Buenos Aires Jorge Newbery

LGWAEP

London Gatwick

Tue 17/11

09:30-10:30

2 stops28h 00m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-04:00

Nonstop0h 00m

£556

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sat 5/12

13:35-07:20

2 stops44h 45m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£557

LondonBuenos Aires

LGW London Gatwick - AEP Buenos Aires Jorge Newbery

LGWAEP

London Gatwick

Sat 14/11

16:35-18:00

3 stops28h 25m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-04:00

Nonstop0h 00m

£558

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 18/2

12:05-07:20

2 stops46h 15m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£559

Flights are sorted by cheapest return flights first.

Deals found on 3/10

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

LTN-EZE

STN-AEP

STN-EZE

LHR-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

LTN-EZE

STN-AEP

STN-EZE

LHR-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 £880). Flying from London to Buenos Aires in December is currently the most expensive (average of £1,282). 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 below average for this route at the moment.

London to Buenos Aires flights typically cost between £918 and £1,206 in December.
The cheapest return price found within the last 5 days was £913 on American Airlines (11 Dec–11 Feb).

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

Madrid (MAD) – chosen by Cheapflights users on 31% 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 £738.

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

Flights via Sao Paulo (GRU) have the shortest average one-way travel time for one-stop routes: 16h 10m.

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

1,976 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

1,976 reviews

LATAM Airlines

7.4

Good

1,976 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

3,256 reviews

LATAM Airlines

7.4

Good

1,976 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

8,256 reviews

LATAM Airlines

7.4

Good

1,976 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

8,244 reviews

LATAM Airlines

7.4

Good

1,976 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

2,560 reviews

LATAM Airlines

7.4

Good

1,976 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 29h 30m. United Airlines provides one of the quickest options available for as low as £973. London and Buenos Aires are separated by a distance of 6890 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 £695 on this airline. Additional options worth looking into are Iberia and LATAM Airlines, starting at £835 and £856 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 £414 on Avianca. Other airlines that offer cheap prices include LATAM Airlines from £540 and Iberia from £703 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 £906. On average you can expect to pay £1,171. The most popular route, (London Heathrow - Buenos Aires Ministro Pistarini), can usually be booked for £781.
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 £880). Flying from London to Buenos Aires in December is currently the most expensive (average of £1,282). 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£695	Average£804	FlexibilityNo cancel fee	On-time71%	Search Avianca flights
Iberia	Cheapest£835	Average£1,032	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
LATAM Airlines	Cheapest£856	Average£1,028	FlexibilityNo cancel fee	On-time81%	Search LATAM Airlines flights
American Airlines	Cheapest£879	Average£908	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
British Airways	Cheapest£907	Average£1,128	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£928	Average£1,119	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Delta	Cheapest£936	Average£1,002	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

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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.

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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 £531

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. 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 4 October 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 4 October 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 4 October 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 4 October 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 4 October 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 4 October 2026.

Last-minute flights from London to Buenos AiresDiscover last-minute flight deals from London to Buenos Aires. Data last updated 4 October 2026 and is based on user searches.

Discover last-minute flight deals from London to Buenos Aires. Data last updated 4 October 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 4 October 2026.

Search for one-way flight options from London to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 4 October 2026.

Find flight deals from London to Buenos Aires

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One-way from

Popular in

Cheapest in

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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 4 October 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

Explore weekly flight availability from London to Buenos Aires. 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 4 October 2026.

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 below average for this route at the moment.

London to Buenos Aires flights typically cost between £918 and £1,206 in December.The cheapest return price found within the last 5 days was £913 on American Airlines (11 Dec–11 Feb).

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 31% 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 £738.

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 Sao Paulo (GRU) have the shortest average one-way travel time for one-stop routes: 16h 10m.

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

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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 4 October 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 4 October 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

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Search flights from London to Buenos Aires by cabin class

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London and Buenos Aires flights

Browse other London and Buenos Aires flight options. Last updated on 4 October 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 4 October 2026.

Popular flight searches

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 4 October 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 4 October 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 4 October 2026.

Last-minute flights from London to Buenos Aires
Discover last-minute flight deals from London to Buenos Aires. Data last updated 4 October 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 4 October 2026.

London to Buenos Aires flights typically cost between £918 and £1,206 in December.
The cheapest return price found within the last 5 days was £913 on American Airlines (11 Dec–11 Feb).