What is the cheapest airline that flies from London to Buenos Aires?

United Airlines, ITA Airways, and Turkish Airlines are the most popular carriers operating from London to Buenos Aires

Which airport is the most popular layover for flights between London and Buenos Aires?

Paris (CDG) was the most common stop: 29% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from London to Buenos Aires?

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 05m.

How many flights depart from London to Buenos Aires on average per week?

21 flights are operational weekly from London to Buenos Aires as of September 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

Which layover airport has the shortest travel time from London to Buenos Aires?

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 16h 05m.

Which layover airport offers the lowest fares from London to Buenos Aires?

Flights via Bogotá (BOG) offer the lowest average round-trip price of $1,088.

How many flights depart from London to Buenos Aires on average per day?

As of September 2026, there are 3 flights per day flying from London to Buenos Aires. The most common time of day flights depart is 9:00PM, with 100% of flights taking off in the evening.

When did momondo last update prices for flights from London to Buenos Aires?

Prices for flights from London to Buenos Aires refresh daily.

How old do you have to be to fly from London to Buenos Aires?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Buenos Aires.

What documentation or ID do you need to fly to Buenos Aires?

The travel and health documents required for your trip to Buenos Aires can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$660 Cheap Flights from London to Buenos Aires in 2026/27

Find the cheapest flights from London to Buenos Aires

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One-way

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9:35 pm - 5:40 amLHR London Heathrow-AEP Buenos Aires Jorge Newbery

35h 05m1 stop Bogotá El Dorado

7:05 am - 2:35 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

28h 30m1 stop Bogotá El Dorado

$1,179Avianca

Wed, Oct 28 - Thu, Nov 26

10:05 pm - 5:40 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

35h 35m1 stop Bogotá El Dorado

7:10 am - 3:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 25m1 stop Bogotá El Dorado

$1,179Avianca

Tue, Oct 6 - Thu, Oct 15

9:35 pm - 5:40 amLHR London Heathrow-AEP Buenos Aires Jorge Newbery

35h 05m1 stop Bogotá El Dorado

7:05 am - 2:35 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

28h 30m1 stop Bogotá El Dorado

$1,181Avianca

Tue, Oct 27 - Tue, Nov 3

10:05 pm - 5:40 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

35h 35m1 stop Bogotá El Dorado

1:35 am - 3:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

34h 00m1 stop Bogotá El Dorado

$1,181Avianca

Sat, Oct 3 - Sun, Oct 11

9:35 pm - 5:40 amLHR London Heathrow-AEP Buenos Aires Jorge Newbery

35h 05m1 stop Bogotá El Dorado

7:05 am - 2:35 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

28h 30m1 stop Bogotá El Dorado

$1,182Avianca

Sun, Nov 15 - Mon, Dec 14

9:35 pm - 3:40 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

21h 05m1 stop Bogotá El Dorado

1:40 am - 2:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

33h 55m1 stop Bogotá El Dorado

$1,182Avianca

Sun, Nov 15 - Thu, Dec 10

3:45 pm - 7:45 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

19h 00m1 stop Madrid Barajas

2:25 pm - 2:55 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

21h 30m1 stop Madrid Barajas

$1,186Multiple Airlines

Mon, Feb 22 - Wed, Mar 3

3:35 pm - 5:30 pmLGW London Gatwick-EZE Buenos Aires Ministro Pistarini

28h 55m1 stop Barcelona-El Prat

1:00 pm - 9:20 amEZE Buenos Aires Ministro Pistarini-LGW London Gatwick

17h 20m1 stop Barcelona-El Prat

$1,188LEVEL

Mon, Feb 8 - Tue, Feb 23

5:25 pm - 8:50 amLGW London Gatwick-EZE Buenos Aires Ministro Pistarini

18h 25m1 stop Madrid Barajas

1:15 pm - 4:25 pmEZE Buenos Aires Ministro Pistarini-LGW London Gatwick

24h 10m1 stop Madrid Barajas

$1,191Air Europa

Thu, Jan 21 - Mon, Feb 22

10:05 pm - 12:25 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

30h 20m1 stop Bogotá El Dorado

7:10 am - 3:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 25m1 stop Bogotá El Dorado

$1,192Avianca

Sun, Oct 11 - Sun, Oct 18

Cheap last minute flights

Enter your travel dates to find the best prices.

6:15 am - 6:50 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

16h 35m1 stop Paris Charles de Gaulle

9:10 pm - 4:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

15h 25m1 stop Paris Charles de Gaulle

$1,179Air France

Thu, Sep 17 - Thu, Sep 24

10:05 pm - 5:40 amLHR London Heathrow-AEP Buenos Aires Jorge Newbery

35h 35m1 stop Bogotá El Dorado

7:00 am - 3:35 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

28h 35m1 stop Bogotá El Dorado

$1,182Avianca

Wed, Sep 16 - Wed, Sep 30

10:05 pm - 5:40 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

35h 35m1 stop Bogotá El Dorado

7:10 am - 3:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 25m1 stop Bogotá El Dorado

$1,182Avianca

Wed, Sep 16 - Wed, Sep 30

8:55 pm - 6:50 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 55m2 stops Amsterdam Schiphol Paris Charles de Gaulle

10:40 pm - 6:20 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

16h 40m1 stop Paris Charles de Gaulle

$1,192Multiple Airlines

Wed, Sep 16 - Wed, Dec 16

8:55 pm - 6:50 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 55m2 stops Amsterdam Schiphol Paris Charles de Gaulle

10:40 pm - 6:20 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

16h 40m1 stop Paris Charles de Gaulle

$1,196Multiple Airlines

Wed, Sep 16 - Wed, Dec 16

8:55 pm - 6:50 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 55m2 stops Amsterdam Schiphol Paris Charles de Gaulle

10:40 pm - 6:20 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

16h 40m1 stop Paris Charles de Gaulle

$1,201Multiple Airlines

Wed, Sep 16 - Wed, Dec 16

8:55 pm - 6:50 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 55m2 stops Amsterdam Schiphol Paris Charles de Gaulle

11:55 pm - 7:40 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

27h 45m2 stops Paris Charles de Gaulle Amsterdam Schiphol

$1,202KLM

Wed, Sep 16 - Fri, Sep 25

10:05 pm - 5:40 amLHR London Heathrow-AEP Buenos Aires Jorge Newbery

35h 35m1 stop Bogotá El Dorado

7:00 am - 3:35 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

28h 35m1 stop Bogotá El Dorado

$1,221Avianca

Thu, Sep 17 - Tue, Oct 6

10:45 am - 9:45 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

27h 00m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

8:10 pm - 7:10 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

31h 00m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

$1,268Delta

Wed, Sep 16 - Fri, Oct 2

5:50 pm - 5:50 amLCY London City-EZE Buenos Aires Ministro Pistarini

16h 00m1 stop Amsterdam Schiphol

3:05 pm - 5:20 pmEZE Buenos Aires Ministro Pistarini-LCY London City

22h 15m1 stop Amsterdam Schiphol

$1,270KLM

Wed, Sep 16 - Wed, Sep 23

Save money when you book flights with momondo

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LATAM Airlines flights from London to Buenos Aires

Our best LATAM Airlines deals on London to Buenos Aires flight tickets

LATAM Airlines

Feb 19

LHR6:15 amLondon Heathrow

27h 05m

2 stops

EZE6:20 amBuenos Aires Ministro Pistarini

Mar 8

EZE7:20 amBuenos Aires Ministro Pistarini

32h 30m

2 stops

LHR6:50 pmLondon Heathrow

$1,220

LATAM Airlines

Nov 16

LHR7:05 pmLondon Heathrow

23h 55m

2 stops

AEP4:00 pmBuenos Aires Jorge Newbery

Dec 16

AEP9:25 amBuenos Aires Jorge Newbery

26h 55m

2 stops

LHR3:20 pmLondon Heathrow

$1,221

LATAM Airlines

Feb 19

LHR6:15 amLondon Heathrow

27h 05m

2 stops

EZE6:20 amBuenos Aires Ministro Pistarini

Mar 7

EZE5:00 pmBuenos Aires Ministro Pistarini

18h 05m

1 stop

LHR2:05 pmLondon Heathrow

$1,231

KLM flights from London to Buenos Aires

Our best KLM deals on London to Buenos Aires flight tickets

KLM

Sep 16

LHR8:55 pmLondon Heathrow

25h 55m

2 stops

EZE6:50 pmBuenos Aires Ministro Pistarini

Sep 25

EZE11:55 pmBuenos Aires Ministro Pistarini

27h 45m

2 stops

LHR7:40 amLondon Heathrow

$1,202

KLM

Sep 16

LCY5:50 pmLondon City

16h 00m

1 stop

EZE5:50 amBuenos Aires Ministro Pistarini

Sep 23

EZE3:05 pmBuenos Aires Ministro Pistarini

22h 15m

1 stop

LCY5:20 pmLondon City

$1,270

KLM

Sep 16

LHR8:55 pmLondon Heathrow

25h 55m

2 stops

EZE6:50 pmBuenos Aires Ministro Pistarini

Dec 16

EZE10:40 pmBuenos Aires Ministro Pistarini

19h 10m

2 stops

LHR8:50 pmLondon Heathrow

$1,290

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Wed 10/28

9:35 pm-5:40 am

1 stop35h 05m

Buenos Aires Jorge Newbery

Thu 11/26

7:05 am-2:35 pm

1 stop28h 30m

$1,179

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Tue 10/6

10:05 pm-5:40 am

1 stop35h 35m

Buenos Aires Ministro Pistarini

Thu 10/15

7:10 am-3:35 pm

1 stop28h 25m

$1,179

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Tue 10/27

9:35 pm-5:40 am

1 stop35h 05m

Buenos Aires Jorge Newbery

Tue 11/3

7:05 am-2:35 pm

1 stop28h 30m

$1,181

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sat 10/3

10:05 pm-5:40 am

1 stop35h 35m

Buenos Aires Ministro Pistarini

Sun 10/11

1:35 am-3:35 pm

1 stop34h 00m

$1,181

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Sun 11/15

9:35 pm-5:40 am

1 stop35h 05m

Buenos Aires Jorge Newbery

Mon 12/14

7:05 am-2:35 pm

1 stop28h 30m

$1,182

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sun 11/15

9:35 pm-3:40 pm

1 stop21h 05m

Buenos Aires Ministro Pistarini

Thu 12/10

1:40 am-2:35 pm

1 stop33h 55m

$1,182

Quickest round-trip

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 2/22

3:45 pm-7:45 am

1 stop19h 00m

Buenos Aires Ministro Pistarini

Wed 3/3

2:25 pm-2:55 pm

1 stop21h 30m

$1,186

LondonBuenos Aires

LGW London Gatwick - EZE Buenos Aires Ministro Pistarini

LGWEZE

London Gatwick

Mon 2/8

3:35 pm-5:30 pm

1 stop28h 55m

Buenos Aires Ministro Pistarini

Tue 2/23

1:00 pm-9:20 am

1 stop17h 20m

$1,188

LondonBuenos Aires

LGW London Gatwick - EZE Buenos Aires Ministro Pistarini

LGWEZE

London Gatwick

Thu 1/21

5:25 pm-8:50 am

1 stop18h 25m

Buenos Aires Ministro Pistarini

Mon 2/22

1:15 pm-4:25 pm

1 stop24h 10m

$1,191

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sun 10/11

10:05 pm-12:25 am

1 stop30h 20m

Buenos Aires Ministro Pistarini

Sun 10/18

7:10 am-3:35 pm

1 stop28h 25m

$1,192

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between London and Buenos Aires?

Prices are currently typical for flights on this route.

Typical prices usually range from $1,072 to $1,472.
The lowest price recently found on this route was $1,179.

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from London is in May. Flight prices, which tend to average around $1,166, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Buenos Aires from London during April instead. Flights to Buenos Aires in April, while not as cheap as those in May, still average around $1,233.

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

You are more likely to see cheaper flights to Buenos Aires from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,384 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from London for as low as $1,138 on momondo.

Can stopping save me money on London to Buenos Aires flights?

You could potentially save up to 19% on your flight if you consider stops on a London to Buenos Aires flight.

How have London to Buenos Aires flight prices changed over time?

As of September 2026, prices for London to Buenos Aires flights are approximately 31% cheaper when compared to flights at the same time last year.

When to book flights from London to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from London to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap London to Buenos Aires (LON to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Buenos Aires

Best Price Found	$660
Fastest flight time	16h 15m
Direct flights	None

The best one-way flight to Buenos Aires from London in the past 72 hours is $660. The best round-trip flight deal from London to Buenos Aires found on momondo in the last 72 hours is $1,179.

The fastest flight from London to Buenos Aires takes 16h 15m

There are no direct flights from London to Buenos Aires. There are no popular flight routes from London to Buenos Aires.

Search flight deals

Frequently asked questions about flying from London to Buenos Aires

How far is London to Buenos Aires by plane?
Buenos Aires is 6909.8 mi away from London. A reasonable flight in good conditions will take 16h 15m.
When did momondo last update prices for flights from London to Buenos Aires?
Prices for flights from London to Buenos Aires refresh daily.
How old do you have to be to fly from London to Buenos Aires?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The travel and health documents required for your trip to Buenos Aires can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London to Buenos Aires?
Based on momondo bookings for flights between London and Buenos Aires, the leading plane model is Boeing 777, making up 100.00% of the total bookings.
What is the most popular airline from London to Buenos Aires?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London to Buenos Aires is British Airways (51% of total bookings). The next most popular airlines are Avianca (26%) and LATAM Airlines (22%).

Why use momondo?

Why should I use momondo to find a flight deal from London to Buenos Aires?

Finding the right flight to Buenos Aires from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

Can I find flights from London to Buenos Aires with flexible booking policies on momondo?

All flight searches from London to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Buenos Aires?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Buenos Aires.

I’m not ready to book a flight from London to Buenos Aires right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Buenos Aires, momondo offers a useful price alert feature which will track prices for flights to Buenos Aires from London and alert you when they change.

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Complete your trip

Feeling lucky

Fly into one of these airports located in Buenos Aires

Buenos Aires Jorge Newbery Airport

Buenos Aires Ministro Pistarini Airport

Cheap flights from London to Buenos Aires from $660

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Buenos Aires departing on 11/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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LATAM Airlines flights from London to Buenos Aires

Our best LATAM Airlines deals on London to Buenos Aires flight tickets

KLM flights from London to Buenos Aires

Our best KLM deals on London to Buenos Aires flight tickets

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

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from London to Buenos Aires

What is the typical price of a round-trip flight between London and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

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

Can stopping save me money on London to Buenos Aires flights?

How have London to Buenos Aires flight prices changed over time?

What is the cheapest airline that flies from London to Buenos Aires?

Which airport is the most popular layover for flights between London and Buenos Aires?

Which layover airport offers the lowest fares from London to Buenos Aires?

Which layover airport has the shortest travel time from London to Buenos Aires?

Which layover airport has the shortest connection time from London to Buenos Aires?

How many flights depart from London to Buenos Aires on average per day?

How many flights depart from London to Buenos Aires on average per week?

When to book flights from London to Buenos Aires

Cheap London to Buenos Aires (LON to BUE) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from London to Buenos Aires

Why use momondo?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires

Cabin classes currently available on flights to Buenos Aires

List of cabin classes available on flights landing in Buenos Aires. Availability may vary depending on flight origin and airline.

Popular cities in Argentina

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from London

According to popular flight searches on momondo this year

Complete your trip to Buenos Aires

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According to popular flight searches on momondo this year