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

3 flights are operational daily from London Heathrow Airport to Buenos Aires as of October 2026. The most popular departure time for this route is 9:00PM, with 100% of flights per day taking off in the evening.

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

United Airlines, Avianca, and TAP AIR PORTUGAL are the most popular carriers operating from London Heathrow to Buenos Aires

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

As of October 2026, there are 21 flights per week flying from London Heathrow Airport to Buenos Aires. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Buenos Aires.

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

The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$710 Cheap Flights from London Heathrow Airport to Buenos Aires in 2026/27

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8:15 am - 12:40 pmLHR London Heathrow-AEP Buenos Aires Jorge Newbery

31h 25m2 stops Lisbon Humberto Delgado Sao Paulo Guarulhos Intl

3:15 am - 10:40 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

40h 25m2 stops Sao Paulo Guarulhos Intl Lisbon Humberto Delgado

$1,235TAP AIR PORTUGAL

Thu, Nov 26 - Sat, Dec 5

3:00 pm - 3:05 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

27h 05m2 stops Toronto Pearson Intl Sao Paulo Guarulhos Intl

4:50 pm - 8:30 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

36h 40m2 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl

$1,238Air Canada

Thu, Feb 11 - Thu, Mar 4

8:15 pm - 4:00 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

22h 45m1 stop Sao Paulo Guarulhos Intl

5:00 pm - 6:15 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

22h 15m2 stops Sao Paulo Guarulhos Intl Madrid Barajas

$1,240LATAM Airlines

Thu, Nov 19 - Mon, Dec 14

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

$1,241Avianca

Sun, Nov 15 - Tue, Dec 15

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

$1,241Avianca

Sun, Nov 15 - Tue, Dec 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

$1,242Avianca

Thu, Nov 19 - Wed, Dec 2

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

35h 30m1 stop Bogotá El Dorado

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

28h 10m1 stop Bogotá El Dorado

$1,242Avianca

Sun, Nov 1 - Sun, Nov 22

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

35h 30m1 stop Bogotá El Dorado

4:50 pm - 2:35 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

18h 45m1 stop Bogotá El Dorado

$1,245Avianca

Tue, Jan 5 - Tue, Feb 2

7:40 pm - 4:00 pmLHR London Heathrow-AEP Buenos Aires Jorge Newbery

23h 20m2 stops Madrid Barajas Lima J Chavez Intl

9:25 am - 3:20 pmAEP Buenos Aires Jorge Newbery-LHR London Heathrow

26h 55m2 stops Santiago Arturo Merino Benitez Madrid Barajas

$1,247LATAM Airlines

Wed, Jan 27 - Sun, Feb 14

11:50 am - 9:10 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

24h 20m1 stop Miami

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

22h 00m1 stop New York John F Kennedy Intl

$1,248American Airlines

Mon, Feb 1 - Sun, Feb 28

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6:00 pm - 8:00 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

42h 00m2 stops Newark Houston George Bush Intcntl

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

28h 45m1 stop Houston George Bush Intcntl

$1,281United Airlines

Sat, Oct 10 - Wed, Nov 25

4:40 pm - 8:00 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

43h 20m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl

9:00 pm - 5:55 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 55m2 stops Houston George Bush Intcntl Newark

$1,283United Airlines

Sat, Oct 10 - Tue, Oct 13

11:25 am - 8:00 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

24h 35m2 stops Denver Intl 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

$1,285United Airlines

Thu, Oct 8 - Sun, Oct 18

2:10 pm - 8:00 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

45h 50m2 stops Chicago O'Hare Intl 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

$1,351United Airlines

Sat, Oct 10 - Mon, Oct 12

6:00 pm - 8:00 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

42h 00m2 stops Newark Houston George Bush Intcntl

9:00 pm - 5:55 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 55m2 stops Houston George Bush Intcntl Newark

$1,353United Airlines

Tue, Oct 6 - Tue, Oct 13

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

$1,375Delta

Thu, Oct 8 - Sun, Oct 18

1:40 pm - 8:00 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

22h 20m1 stop Houston George Bush Intcntl

9:00 pm - 5:55 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

28h 55m2 stops Houston George Bush Intcntl Newark

$1,388United Airlines

Tue, Oct 6 - Tue, Oct 13

9:15 am - 6:45 amLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

25h 30m2 stops Madrid Barajas Punta Cana

11:50 am - 9:10 amEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

17h 20m1 stop Barcelona-El Prat

$1,396Multiple Airlines

Wed, Oct 7 - Wed, Oct 14

8:00 pm - 4:05 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

24h 05m1 stop Madrid Barajas

9:45 pm - 6:15 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

16h 30m1 stop Madrid Barajas

$1,407British Airways

Wed, Oct 7 - Wed, Oct 14

8:00 pm - 4:05 pmLHR London Heathrow-EZE Buenos Aires Ministro Pistarini

24h 05m1 stop Madrid Barajas

9:45 pm - 6:15 pmEZE Buenos Aires Ministro Pistarini-LHR London Heathrow

16h 30m1 stop Madrid Barajas

$1,409British Airways

Sat, Oct 10 - Sat, Oct 17

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Avianca flights from London Heathrow Airport to Buenos Aires

Our best Avianca deals on London Heathrow Airport to Buenos Aires flight tickets

Avianca

Nov 15

LHR9:35 pmLondon Heathrow

21h 05m

1 stop

EZE3:40 pmBuenos Aires Ministro Pistarini

Dec 15

EZE7:25 amBuenos Aires Ministro Pistarini

28h 10m

1 stop

LHR2:35 pmLondon Heathrow

$1,241

Avianca

Nov 1

LHR9:35 pmLondon Heathrow

35h 30m

1 stop

EZE6:05 amBuenos Aires Ministro Pistarini

Nov 22

EZE7:25 amBuenos Aires Ministro Pistarini

28h 10m

1 stop

LHR2:35 pmLondon Heathrow

$1,242

Avianca

Jan 5

LHR9:35 pmLondon Heathrow

35h 30m

1 stop

EZE6:05 amBuenos Aires Ministro Pistarini

Feb 2

EZE4:50 pmBuenos Aires Ministro Pistarini

18h 45m

1 stop

LHR2:35 pmLondon Heathrow

$1,245

United Airlines flights from London Heathrow Airport to Buenos Aires

Our best United Airlines deals on London Heathrow Airport to Buenos Aires flight tickets

United Airlines

Nov 23

LHR6:35 amLondon Heathrow

27h 45m

2 stops

EZE7:20 amBuenos Aires Ministro Pistarini

Dec 8

EZE10:05 pmBuenos Aires Ministro Pistarini

29h 35m

2 stops

LHR6:40 amLondon Heathrow

$1,268

United Airlines

Nov 13

LHR6:35 amLondon Heathrow

29h 45m

2 stops

EZE9:20 amBuenos Aires Ministro Pistarini

Nov 20

EZE10:05 pmBuenos Aires Ministro Pistarini

29h 15m

2 stops

LHR6:20 amLondon Heathrow

$1,270

United Airlines

Nov 16

LHR6:35 amLondon Heathrow

27h 45m

2 stops

EZE7:20 amBuenos Aires Ministro Pistarini

Nov 22

EZE10:05 pmBuenos Aires Ministro Pistarini

30h 50m

2 stops

LHR7:55 amLondon Heathrow

$1,272

momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Thu 11/26

8:15 am-12:40 pm

2 stops31h 25m

Buenos Aires Jorge Newbery

Sat 12/5

3:15 am-10:40 pm

2 stops40h 25m

$1,235

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 2/11

3:00 pm-3:05 pm

2 stops27h 05m

Buenos Aires Ministro Pistarini

Thu 3/4

4:50 pm-8:30 am

2 stops36h 40m

$1,238

Quickest round-trip

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Thu 11/19

8:15 pm-4:00 pm

1 stop22h 45m

Buenos Aires Ministro Pistarini

Mon 12/14

5:00 pm-6:15 pm

2 stops22h 15m

$1,240

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

Tue 12/15

7:05 am-2:35 pm

1 stop28h 30m

$1,241

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

Tue 12/15

7:25 am-2:35 pm

1 stop28h 10m

$1,241

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Thu 11/19

9:35 pm-5:40 am

1 stop35h 05m

Buenos Aires Jorge Newbery

Wed 12/2

7:05 am-2:35 pm

1 stop28h 30m

$1,242

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Sun 11/1

9:35 pm-6:05 am

1 stop35h 30m

Buenos Aires Ministro Pistarini

Sun 11/22

7:25 am-2:35 pm

1 stop28h 10m

$1,242

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Tue 1/5

9:35 pm-6:05 am

1 stop35h 30m

Buenos Aires Ministro Pistarini

Tue 2/2

4:50 pm-2:35 pm

1 stop18h 45m

$1,245

LondonBuenos Aires

LHR London Heathrow - AEP Buenos Aires Jorge Newbery

LHRAEP

London Heathrow

Wed 1/27

7:40 pm-4:00 pm

2 stops23h 20m

Buenos Aires Jorge Newbery

Sun 2/14

9:25 am-3:20 pm

2 stops26h 55m

$1,247

LondonBuenos Aires

LHR London Heathrow - EZE Buenos Aires Ministro Pistarini

LHREZE

London Heathrow

Mon 2/1

11:50 am-9:10 am

1 stop24h 20m

Buenos Aires Ministro Pistarini

Sun 2/28

9:10 pm-10:10 pm

1 stop22h 00m

$1,248

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from London Heathrow Airport 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

Other information

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

Prices are currently low for flights on this route.

Typical prices usually range from $1,269 to $1,502.
The lowest price recently found on this route was $1,235.

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from London Heathrow Airport is in May. Flight prices, which tend to average around $1,143, 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 Heathrow Airport during November instead. Flights to Buenos Aires in November, while not as cheap as those in May, still average around $1,235.

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

You are more likely to see cheaper flights to Buenos Aires from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,371 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 Heathrow Airport for as low as $1,138 on momondo.

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

You could potentially save up to 18% on your flight if you consider stops on a London Heathrow Airport to Buenos Aires flight.

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

As of October 2026, prices for London Heathrow Airport to Buenos Aires flights are approximately 15% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Buenos Aires

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

Estimated round-trip price

Cheap London Heathrow Airport to Buenos Aires (LHR to BUE) flight deals and tips

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

Best Price Found	$710
Fastest flight time	16h 00m
Direct flights	Every day
Airports in Buenos Aires	2 airports

The best one-way flight to Buenos Aires from London Heathrow Airport in the past 72 hours is $710. The best round-trip flight deal from London Heathrow Airport to Buenos Aires found on momondo in the last 72 hours is $1,235.

The fastest flight from London Heathrow Airport to Buenos Aires takes 16h 00m

Direct flights go from London Heathrow Airport to Buenos Aires every day.

There are 2 airports in Buenos Aires. From London Heathrow Airport there are direct flights to Buenos Aires Ministro Pistarini (EZE).

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Frequently asked questions about flying from London Heathrow Airport to Buenos Aires

How far is London Heathrow to Buenos Aires by plane?
The distance between London Heathrow and Buenos Aires is about 6898.3 mi. By plane, this route typically takes 16h 00m.
When did momondo last update prices for flights from London Heathrow Airport to Buenos Aires?
Prices for flights from London Heathrow Airport to Buenos Aires are updated daily.
How old do you have to be to fly from London Heathrow Airport to Buenos Aires?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to Buenos Aires?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to Buenos Aires is Boeing 777 (100.00% of total bookings).
What is the most popular airline from London Heathrow Airport to Buenos Aires?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Buenos Aires is British Airways (100% of total bookings).

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?

Yes. All flights to Buenos Aires from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential London to Buenos Aires flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for London to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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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 Heathrow Airport to Buenos Aires from $710

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Avianca flights from London Heathrow Airport to Buenos Aires

Our best Avianca deals on London Heathrow Airport to Buenos Aires flight tickets

United Airlines flights from London Heathrow Airport to Buenos Aires

Our best United Airlines deals on London Heathrow Airport to Buenos Aires flight tickets

momondo Fare Finder

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

See travel insights to Buenos Aires from

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

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

What is the cheapest month to fly to Buenos Aires?

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

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

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

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

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

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

When to book flights from London Heathrow Airport to Buenos Aires

Cheap London Heathrow Airport to Buenos Aires (LHR to BUE) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Buenos Aires

Frequently asked questions about flying from London Heathrow Airport 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 Heathrow Airport

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year