How long is the flight from London Heathrow Airport to Buenos Aires?

A quick flight from London Heathrow Airport to Buenos Aires can take about 22h 15m. United Airlines provides one of the quickest options available for as low as £974. London Heathrow Airport and Buenos Aires are separated by a distance of 6915 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

Our cheapest airline available from London Heathrow Airport to Buenos Aires is Avianca. Our recent data shows that you can find tickets from as low as £662 on this airline. Additional options worth looking into are British Airways and Iberia, starting at £831 and £835 round-trip. Avianca is 37% 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 Heathrow Airport to Buenos Aires one-way?

£414 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on KLM and LATAM Airlines, with prices starting from £503 and £539, respectively.

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 cheapest flights from London Heathrow Airport to Buenos Aires?

Looking at all options, your cheapest flight can be booked for £825. While the most popular route (London Heathrow - Buenos Aires Ministro Pistarini) can be booked for £817 on average, our data indicates £889 when flying from London Heathrow Airport to Buenos Aires.

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

Before booking your flight from London Heathrow Airport to Buenos Aires check out the most popular airlines for this route: British Airways, Avianca or Lufthansa.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Buenos Aires as you normally would.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Heathrow 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.

£554+ Cheap Flights from London Heathrow Airport to Buenos Aires

Cheapflights Tip: The best prices from London Heathrow to Buenos Aires are usually found in May or April, booked 63 days in advance, depart on a Wednesday or Saturday and return on a Monday

Cheap flight deals from Heathrow to Buenos Aires

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Heathrow to Buenos Aires
Explore the most affordable flight options available from Heathrow to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Thu 26/1120:15 -

1 stop17h 15m

Thu 17/1214:55 -

2 stops21h 25m

Deal found 11/11£966

Tue 1/1219:05 -

2 stops47h 55m

Sun 13/1217:00 -

1 stop18h 25m

Deal found 8/11£966

Tue 17/1120:25 -

2 stops26h 55m

Sat 21/1117:00 -

1 stop16h 05m

Deal found 7/11£967

Wed 18/1121:35 -

1 stop35h 05m

Mon 23/1107:05 -

1 stop28h 30m

Deal found 8/11£968

Sun 15/1121:35 -

1 stop35h 30m

Fri 27/1107:25 -

1 stop28h 10m

Deal found 10/11£968

Tue 1/1218:40 -

2 stops20h 10m

Sun 6/1222:20 -

1 stop32h 20m

Deal found 9/11£969

Sun 27/1221:35 -

1 stop35h 05m

Tue 26/107:05 -

1 stop28h 30m

Deal found 11/11£969

Sun 27/1221:35 -

1 stop35h 05m

Thu 28/107:05 -

1 stop28h 30m

Deal found 10/11£970

Wed 18/1121:35 -

1 stop35h 05m

Thu 17/607:00 -

1 stop28h 35m

Deal found 11/11£971

Tue 17/1121:35 -

1 stop21h 05m

Fri 11/601:35 -

1 stop34h 00m

Deal found 11/11£971

Wed 18/1106:20 -

2 stops28h 10m

Wed 25/1109:00 -

2 stops28h 05m

Deal found 11/11£972

Wed 25/1112:05 -

1 stop22h 15m

Mon 7/1223:55 -

2 stops27h 25m

Deal found 12/11£972

Best flights from Heathrow to Buenos Aires
Discover carefully curated flight deals from Heathrow to Buenos Aires that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Tue 1/1212:05 -

1 stop22h 15m

Sun 6/1222:05 -

2 stops30h 50m

Deal found 9/11£974

Fri 5/219:55 -

2 stops43h 45m

Mon 8/313:35 -

2 stops24h 55m

Deal found 9/11£1,023

Mon 8/306:20 -

2 stops31h 35m

Wed 24/323:35 -

2 stops28h 15m

Deal found 7/11£1,050

Wed 3/214:25 -

3 stops24h 35m

Wed 24/212:55 -

2 stops21h 05m

Deal found 11/11£1,420

Fri 11/1215:45 -

2 stops21h 45m

Wed 16/1221:45 -

2 stops31h 40m

Deal found 12/11£1,575

Sat 5/1207:40 -

2 stops26h 40m

Tue 8/1223:55 -

2 stops27h 00m

Deal found 8/11£974

Sat 13/311:15 -

2 stops26h 40m

Tue 30/320:10 -

2 stops30h 35m

Deal found 7/11£1,050

Thu 21/110:00 -

1 stop24h 20m

Wed 27/123:55 -

2 stops29h 00m

Deal found 9/11£981

Tue 11/506:00 -

2 stops24h 00m

Sat 22/509:45 -

2 stops20h 35m

Deal found 10/11£1,104

Wed 13/110:10 -

2 stops24h 25m

Tue 26/123:35 -

2 stops27h 45m

Deal found 11/11£1,064

Sat 26/1209:40 -

2 stops27h 00m

Fri 29/121:30 -

2 stops29h 50m

Deal found 12/11£1,093

Wed 2/1218:40 -

2 stops20h 20m

Thu 24/1212:55 -

3 stops24h 45m

Deal found 11/11£1,426

Wed 2/1207:40 -

2 stops26h 40m

Wed 23/1223:55 -

2 stops27h 45m

Deal found 8/11£1,204

Tue 1/1209:40 -

2 stops27h 00m

Thu 24/1223:35 -

1 stop29h 15m

Deal found 11/11£1,101

Tue 12/111:45 -

2 stops26h 10m

Wed 27/120:05 -

1 stop21h 05m

Deal found 11/11£1,102

Wed 6/120:05 -

2 stops42h 55m

Sun 31/112:55 -

3 stops40h 20m

Deal found 9/11£1,552

Thu 3/1209:40 -

2 stops28h 15m

Tue 22/1223:35 -

2 stops28h 15m

Deal found 11/11£1,151

Mon 21/1218:40 -

2 stops20h 20m

Thu 11/212:55 -

2 stops21h 05m

Deal found 8/11£1,734

Sat 12/1218:40 -

2 stops20h 20m

Mon 14/1212:55 -

3 stops26h 45m

Deal found 10/11£1,815

Thu 26/1118:40 -

2 stops20h 20m

Tue 29/1212:55 -

3 stops24h 45m

Deal found 12/11£1,924

Thu 26/1118:40 -

2 stops20h 20m

Mon 28/1212:55 -

3 stops26h 45m

Deal found 12/11£1,924

Fri 4/1218:40 -

2 stops20h 20m

Tue 22/1212:55 -

3 stops26h 45m

Deal found 12/11£1,931

Fri 1/118:40 -

2 stops20h 20m

Thu 21/112:55 -

3 stops24h 45m

Deal found 8/11£1,941

Find flight deals from Heathrow to Buenos Aires

Round-trip from	£966
One-way from	£554
Popular in	December
Cheapest in	May
Average price	£1,141
Good round-trip deal	£856 or less

LATAM Airlines
26/11-17/12
3 total stops
38h 40m total
London to Buenos Aires

Search Deals

28/3-31/12
2 total stops
35h 10m total
London to Buenos Aires

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (£77 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

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

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 23/11

12:05-07:20

2 stops46h 15m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£559

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 26/11

12:05-09:20

2 stops48h 15m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£561

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Tue 1/12

07:40-09:20

2 stops52h 40m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£561

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Wed 9/12

12:05-07:20

1 stop22h 15m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£562

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 7/12

10:00-09:20

1 stop26h 20m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£562

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Fri 4/12

10:00-07:20

1 stop24h 20m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£562

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sat 21/11

12:05-09:20

1 stop24h 15m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£562

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 19/11

12:45-07:20

2 stops45h 35m

Buenos Aires Ministro Pistarini

Wed 31/12

00:00-04:00

Nonstop0h 00m

£563

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Wed 27/1

08:15-01:40

2 stops44h 25m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-04:00

Nonstop0h 00m

£757

Fastest return journey

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Sat 27/2

08:15-01:40

2 stops20h 25m

Buenos Aires Jorge Newbery

Wed 31/12

00:00-04:00

Nonstop0h 00m

£757

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Showing 1-10 of 43 resultsSorted by cheapest first

...

Best time to book a flight from Heathrow to Buenos Aires

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

LHR-BUE

LHR-EZE

LHR-AEP

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 Heathrow Airport to Buenos Aires

LHR-BUE

LHR-EZE

LHR-AEP

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

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Buenos Aires (average of £848). Flying from London Heathrow Airport to Buenos Aires in December is currently the most expensive (average of £1,304). 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.

Weekly flight availability from London Heathrow Airport to Buenos Aires

The most flights from LHR 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 Heathrow Airport to Buenos Aires?

Airfare is typical for this route at the moment.

London Heathrow Airport to Buenos Aires flights typically cost between £937 and £1,171 in November.
The cheapest return price found within the last 5 days was £966 on LATAM Airlines (26 Nov–17 Dec).

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

Madrid (MAD) – chosen by Cheapflights users on 30% of one-stop itineraries from London Heathrow Airport to Buenos Aires on Cheapflights.

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

Bogotá (BOG) is the most affordable one-stop option, with an average return flight price of £752.

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

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Buenos Aires

Read through reviews of airlines operating flights from London Heathrow Airport to Buenos Aires, such as LATAM Airlines,Iberia, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

LATAM Airlines

7.5

Good

1,971 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2026

GRU - JNB

No communication from captain about the delay long waiting time. Shitty airline with incompetent employees especially employees from Brazil.

LATAM Airlines

7.5

Good

1,971 reviews

LATAM Airlines

7.5

Good

1,971 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2026

GRU - JNB

No communication from captain about the delay long waiting time. Shitty airline with incompetent employees especially employees from Brazil.

Iberia

7.0

Good

3,228 reviews

LATAM Airlines

7.5

Good

1,971 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2026

GRU - JNB

No communication from captain about the delay long waiting time. Shitty airline with incompetent employees especially employees from Brazil.

Lufthansa

6.8

Okay

8,294 reviews

LATAM Airlines

7.5

Good

1,971 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2026

GRU - JNB

No communication from captain about the delay long waiting time. Shitty airline with incompetent employees especially employees from Brazil.

British Airways

6.7

Okay

8,285 reviews

LATAM Airlines

7.5

Good

1,971 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2026

GRU - JNB

No communication from captain about the delay long waiting time. Shitty airline with incompetent employees especially employees from Brazil.

Avianca

6.5

Okay

2,546 reviews

LATAM Airlines

7.5

Good

1,971 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2026

GRU - JNB

No communication from captain about the delay long waiting time. Shitty airline with incompetent employees especially employees from Brazil.

Related info for your journey

How long is the flight from London Heathrow Airport to Buenos Aires?
A quick flight from London Heathrow Airport to Buenos Aires can take about 22h 15m. United Airlines provides one of the quickest options available for as low as £974. London Heathrow Airport and Buenos Aires are separated by a distance of 6915 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from London Heathrow Airport to Buenos Aires round-trip?
Our cheapest airline available from London Heathrow Airport to Buenos Aires is Avianca. Our recent data shows that you can find tickets from as low as £662 on this airline. Additional options worth looking into are British Airways and Iberia, starting at £831 and £835 round-trip. Avianca is 37% 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 Heathrow Airport to Buenos Aires one-way?
£414 is the cheapest one-way deal found within the past few days, from Avianca. You may also be able to find cheap deals on KLM and LATAM Airlines, with prices starting from £503 and £539, respectively.
What are the cheapest flights from London Heathrow Airport to Buenos Aires?
Looking at all options, your cheapest flight can be booked for £825. While the most popular route (London Heathrow - Buenos Aires Ministro Pistarini) can be booked for £817 on average, our data indicates £889 when flying from London Heathrow Airport to Buenos Aires.
Can I find deals for flights from Heathrow to Buenos Aires that include hotel bookings?
Yes. In addition to deals on Heathrow to Buenos Aires flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Buenos Aires?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Buenos Aires.
Can I find deals for business class flights from Heathrow to Buenos Aires?
Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Buenos Aires?
Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Buenos Aires (average of £848). Flying from London Heathrow Airport to Buenos Aires in December is currently the most expensive (average of £1,304). 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

Alternative routes

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Alternative routes for Heathrow to Buenos Aires

Heathrow to Ministro Pistarini flights

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Gatwick to Ushuaia flights

Gatwick to San Carlos de Bariloche flights

London City to Cordoba flights

Heathrow to Rosario flights

Heathrow to Salta flights

Gatwick to Rosario flights

Top 7 airlines flying from Heathrow to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
Avianca	Cheapest£662	Average£766	FlexibilityNo cancel fee	On-time71%	Search Avianca flights
British Airways	Cheapest£831	Average£1,093	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Iberia	Cheapest£835	Average£1,015	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
LATAM Airlines	Cheapest£855	Average£1,050	FlexibilityNo cancel fee	On-time81%	Search LATAM Airlines flights
American Airlines	Cheapest£879	Average£988	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Lufthansa	Cheapest£936	Average£1,118	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
ITA Airways	Cheapest£954	Average£1,340	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights

Fly with Cheapflights

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

When you search for this flight from Heathrow to Buenos Aires, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Buenos Aires?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Buenos Aires.

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

Yes, we can. To see specific flights from Heathrow 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 Heathrow to Buenos Aires become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Buenos Aires from Heathrow today and book when prices fit your budget.

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Cheap flights from London Heathrow Airport to Buenos Aires from £554

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Buenos Aires

Cheapest flights from Heathrow to Buenos AiresExplore the most affordable flight options available from Heathrow to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Explore the most affordable flight options available from Heathrow to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Best flights from Heathrow to Buenos AiresDiscover carefully curated flight deals from Heathrow to Buenos Aires that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Discover carefully curated flight deals from Heathrow to Buenos Aires that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Direct flights from Heathrow to Buenos AiresExplore direct flight options from Heathrow to Buenos Aires based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 November 2026.

Explore direct flight options from Heathrow to Buenos Aires based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 November 2026.

Last-minute flights from Heathrow to Buenos AiresDiscover last-minute flight deals from Heathrow to Buenos Aires. Data last updated 12 November 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Buenos Aires. Data last updated 12 November 2026 and is based on user searches.

One-way flights from Heathrow to Buenos AiresSearch for one-way flight options from Heathrow to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.

Search for one-way flight options from Heathrow to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.

Find flight deals from Heathrow 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 Heathrow Airport to Buenos Aires that are best for you.

Best time to book a flight from Heathrow to Buenos Aires

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

Cheapflights Insights

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

Weekly flight availability from London Heathrow Airport to Buenos Aires

The most flights from LHR 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 Heathrow Airport to Buenos Aires?

Airfare is typical for this route at the moment.

London Heathrow Airport to Buenos Aires flights typically cost between £937 and £1,171 in November.The cheapest return price found within the last 5 days was £966 on LATAM Airlines (26 Nov–17 Dec).

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

Share of one-stop return flights from London Heathrow Airport 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 30% of one-stop itineraries from London Heathrow Airport to Buenos Aires on Cheapflights.

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

Average return fare for one-stop flights from London Heathrow Airport 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 £752.

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

Shortest average travel time for one-stop one-way flights from London Heathrow Airport 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 Heathrow Airport to Buenos Aires?

Average stopover duration for one-stop one-way flights from London Heathrow Airport 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 Heathrow Airport to Buenos Aires?

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Buenos Aires

Read through reviews of airlines operating flights from London Heathrow Airport to Buenos Aires, such as LATAM Airlines,Iberia, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from London Heathrow Airport to Buenos Aires?

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

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

What are the cheapest flights from London Heathrow Airport to Buenos Aires?

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

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

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Alternative routes for Heathrow to Buenos Aires

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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 12 November 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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Heathrow and Buenos Aires flights

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Other flights from Heathrow

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Top 7 airlines flying from Heathrow to Buenos Aires

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Cheapest flights from Heathrow to Buenos Aires
Explore the most affordable flight options available from Heathrow to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 November 2026.

Best flights from Heathrow to Buenos Aires
Discover carefully curated flight deals from Heathrow to Buenos Aires that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 November 2026.

Direct flights from Heathrow to Buenos Aires
Explore direct flight options from Heathrow to Buenos Aires based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 November 2026.

Last-minute flights from Heathrow to Buenos Aires
Discover last-minute flight deals from Heathrow to Buenos Aires. Data last updated 12 November 2026 and is based on user searches.

One-way flights from Heathrow to Buenos Aires
Search for one-way flight options from Heathrow to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated 12 November 2026.

London Heathrow Airport to Buenos Aires flights typically cost between £937 and £1,171 in November.
The cheapest return price found within the last 5 days was £966 on LATAM Airlines (26 Nov–17 Dec).