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.

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

Paris (CDG) was the most common stop: 27% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Bogotá (BOG) offer the lowest average round-trip price of $1,099.

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.

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

Aeromexico, ITA Airways, and Avianca are the most popular carriers operating from London to Buenos Aires

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.

$674 Cheap Flights from London to Buenos Aires in 2026/27

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

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

$1,152Avianca

Wed, Oct 14 - Tue, Oct 20

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

$1,152Avianca

Wed, Oct 14 - Wed, Oct 21

9:55 am - 5:30 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

34h 35m1 stop Barcelona-El Prat

1:00 pm - 8:05 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 05m1 stop Barcelona-El Prat

$1,153LEVEL

Thu, Feb 25 - Mon, Mar 8

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

21h 05m1 stop Bogotá El Dorado

4:50 pm - 3:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

18h 45m1 stop Bogotá El Dorado

$1,159Avianca

Tue, Nov 3 - Tue, Jun 1

9:35 pm - 6:05 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

35h 30m1 stop Bogotá El Dorado

4:50 pm - 3:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

18h 45m1 stop Bogotá El Dorado

$1,170Avianca

Mon, Nov 2 - Tue, Jun 1

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

$1,170Avianca

Sat, Oct 10 - Fri, Oct 23

7:40 pm - 5:25 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

24h 45m1 stop Madrid Barajas

3:10 pm - 8:30 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

13h 20mnonstop

$1,173British Airways

Tue, Jan 26 - Tue, Apr 27

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

21h 05m1 stop Bogotá El Dorado

4:50 pm - 3:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

18h 45m1 stop Bogotá El Dorado

$1,174Avianca

Thu, Mar 18 - Wed, Mar 31

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

21h 05m1 stop Bogotá El Dorado

7:25 am - 2:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 10m1 stop Bogotá El Dorado

$1,175Avianca

Mon, Nov 23 - Mon, Feb 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

$1,175Avianca

Mon, Nov 23 - Fri, Feb 12

Cheap last minute flights

Enter your travel dates to find the best prices.

11:45 am - 9:45 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

26h 00m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

8:10 pm - 6:45 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

30h 35m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

$1,264Delta

Thu, Sep 24 - Thu, Oct 1

8:40 pm - 8:00 pmLGW London Gatwick-EZE Buenos Aires Ministro Pistarini

27h 20m1 stop Madrid Barajas

1:00 pm - 10:50 amEZE Buenos Aires Ministro Pistarini-LGW London Gatwick

17h 50m1 stop Madrid Barajas

$1,329British Airways

Sat, Sep 26 - Tue, Sep 29

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

$1,343Avianca

Thu, Sep 24 - Wed, Oct 7

11:45 am - 9:45 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

26h 00m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

8:10 pm - 8:50 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

32h 40m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

$1,344Delta

Thu, Sep 24 - Sat, Sep 26

10:00 am - 8:00 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

26h 00m1 stop Houston George Bush Intcntl

9:00 pm - 6:45 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

29h 45m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

$1,363United Airlines

Fri, Sep 25 - Sun, Oct 4

8:40 pm - 4:05 pmLGW London Gatwick-EZE Buenos Aires Ministro Pistarini

23h 25m1 stop Madrid Barajas

9:45 pm - 8:00 pmEZE Buenos Aires Ministro Pistarini-LGW London Gatwick

18h 15m1 stop Madrid Barajas

$1,367British Airways

Sat, Sep 26 - Mon, Sep 28

4:30 pm - 10:30 amLHR London Heathrow-AEP Buenos Aires Jorge Newbery

22h 00m2 stops Madrid Barajas Sao Paulo Guarulhos Intl

10:35 am - 4:20 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

25h 45m2 stops Sao Paulo Guarulhos Intl Madrid Barajas

$1,371British Airways

Wed, Sep 23 - Mon, Apr 12

10:00 am - 8:00 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

26h 00m1 stop Houston George Bush Intcntl

9:00 pm - 8:40 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

43h 40m2 stops Houston George Bush Intcntl Newark

$1,374United Airlines

Thu, Sep 24 - Thu, Oct 1

8:40 pm - 4:05 pmLGW London Gatwick-EZE Buenos Aires Ministro Pistarini

23h 25m1 stop Madrid Barajas

1:00 pm - 10:50 amEZE Buenos Aires Ministro Pistarini-LGW London Gatwick

17h 50m1 stop Madrid Barajas

$1,374British Airways

Sat, Sep 26 - Mon, Oct 5

11:45 am - 9:45 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

26h 00m2 stops New York John F Kennedy Intl 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

$1,387Delta

Tue, Sep 22 - Wed, Apr 14

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ITA Airways flights from London to Buenos Aires

Our best ITA Airways deals on London to Buenos Aires flight tickets

ITA Airways

Nov 24

LHR10:30 amLondon Heathrow

25h 20m

1 stop

EZE8:50 amBuenos Aires Ministro Pistarini

Nov 29

EZE1:55 pmBuenos Aires Ministro Pistarini

22h 45m

1 stop

LHR3:40 pmLondon Heathrow

$1,206

ITA Airways

Nov 25

LHR10:30 amLondon Heathrow

25h 20m

1 stop

EZE8:50 amBuenos Aires Ministro Pistarini

Nov 29

EZE1:55 pmBuenos Aires Ministro Pistarini

22h 45m

1 stop

LHR3:40 pmLondon Heathrow

$1,212

ITA Airways

Mar 1

LHR10:30 amLondon Heathrow

36h 25m

1 stop

EZE7:55 pmBuenos Aires Ministro Pistarini

Mar 7

EZE10:20 pmBuenos Aires Ministro Pistarini

38h 20m

1 stop

LHR3:40 pmLondon Heathrow

$1,222

American Airlines flights from London to Buenos Aires

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

American Airlines

Oct 9

LHR6:05 pmLondon Heathrow

21h 00m

1 stop

EZE11:05 amBuenos Aires Ministro Pistarini

Oct 22

EZE9:10 pmBuenos Aires Ministro Pistarini

20h 30m

1 stop

LHR9:40 pmLondon Heathrow

$1,218

American Airlines

Jan 27

LHR10:05 amLondon Heathrow

24h 20m

1 stop

EZE7:25 amBuenos Aires Ministro Pistarini

Feb 14

EZE9:10 pmBuenos Aires Ministro Pistarini

22h 00m

1 stop

LHR10:10 pmLondon Heathrow

$1,232

American Airlines

Feb 26

LHR5:00 pmLondon Heathrow

20h 45m

1 stop

EZE10:45 amBuenos Aires Ministro Pistarini

Mar 15

EZE10:40 pmBuenos Aires Ministro Pistarini

29h 05m

1 stop

LHR6:45 amLondon Heathrow

$1,237

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Wed 10/14

10:05 pm-5:40 am

1 stop35h 35m

Buenos Aires Ministro Pistarini

Tue 10/20

1:35 am-3:35 pm

1 stop34h 00m

$1,152

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Wed 10/14

10:05 pm-5:40 am

1 stop35h 35m

Buenos Aires Jorge Newbery

Wed 10/21

7:00 am-3:35 pm

1 stop28h 35m

$1,152

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 2/25

9:55 am-5:30 pm

1 stop34h 35m

Buenos Aires Ministro Pistarini

Mon 3/8

1:00 pm-8:05 pm

1 stop28h 05m

$1,153

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Tue 11/3

9:35 pm-3:40 pm

1 stop21h 05m

Buenos Aires Ministro Pistarini

Tue 6/1

4:50 pm-3:35 pm

1 stop18h 45m

$1,159

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 11/2

9:35 pm-6:05 am

1 stop35h 30m

Buenos Aires Ministro Pistarini

Tue 6/1

4:50 pm-3:35 pm

1 stop18h 45m

$1,170

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Sat 10/10

10:05 pm-5:40 am

1 stop35h 35m

Buenos Aires Jorge Newbery

Fri 10/23

7:00 am-3:35 pm

1 stop28h 35m

$1,170

Quickest round-trip

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Tue 1/26

7:40 pm-5:25 pm

1 stop24h 45m

Buenos Aires Ministro Pistarini

Tue 4/27

3:10 pm-8:30 am

Nonstop13h 20m

$1,173

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 3/18

9:35 pm-3:40 pm

1 stop21h 05m

Buenos Aires Ministro Pistarini

Wed 3/31

4:50 pm-3:35 pm

1 stop18h 45m

$1,174

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 11/23

9:35 pm-3:40 pm

1 stop21h 05m

Buenos Aires Ministro Pistarini

Mon 2/15

7:25 am-2:35 pm

1 stop28h 10m

$1,175

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Mon 11/23

9:35 pm-5:40 am

1 stop35h 05m

Buenos Aires Jorge Newbery

Fri 2/12

7:05 am-2:35 pm

1 stop28h 30m

$1,175

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 $1,132 to $1,519.
The lowest price recently found on this route was $1,152.

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 $1,219.

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 $1,385 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 18% 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	$674
Fastest flight time	16h 15m
Direct flights	None

The best one-way flight to Buenos Aires from London in the past 72 hours is $674. The best round-trip flight deal from London to Buenos Aires found on momondo in the last 72 hours is $1,152.

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 (53% of total bookings). The next most popular airlines are Avianca (26%) and LATAM Airlines (21%).

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

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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 $674

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 10/18. 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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ITA Airways flights from London to Buenos Aires

Our best ITA Airways deals on London to Buenos Aires flight tickets

American Airlines flights from London to Buenos Aires

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

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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

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According to popular flight searches on momondo this year