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

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 11m.

What airlines fly to London Heathrow Airport?

American Airlines, British Airways and Iberia are the top three most popular airlines that fly to London Heathrow Airport from Buenos Aires according to our data. American Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 4 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

Frankfurt am Main (FRA) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 16h 03m.

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

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

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

The number of flights available between Buenos Aires and London Heathrow Airport is 14 per week as of April 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

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

2 flights are operational daily from Buenos Aires to London Heathrow Airport as of April 2026. The most popular departure time for this route is 1:00PM, with 100% of flights per day taking off in the afternoon.

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

Flights via Rome (FCO) offer the lowest average round-trip price of $1,419.

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

Prices for flights from Buenos Aires to London Heathrow Airport were last updated today.

How many operators does momondo search for flights from Buenos Aires to London Heathrow Airport?

There are 4 operators available for flights from Buenos Aires to London Heathrow Airport as of April 2026.

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

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 Buenos Aires to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$619 Cheap Flights from Buenos Aires to London Heathrow Airport in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $1,547 to $1,274. The lowest price recently found on this route was $1,283.

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Enter your travel dates to find the best prices.

4:35 pm - 9:35 am

EZE

LHR

37h 00m

2 stops

2:10 pm - 3:40 pm

LHR

EZE

29h 30m

2 stops

$1,283Multiple Airlines

Thu, May 21 - Mon, Jun 1

10:20 am - 10:00 pm

AEP

LHR

31h 40m

2 stops

6:45 pm - 9:20 am

LHR

AEP

42h 35m

2 stops

$1,290TAP AIR PORTUGAL

Tue, Sep 22 - Tue, Oct 13

10:20 am - 10:20 am

AEP

LHR

44h 00m

2 stops

6:45 pm - 9:20 am

LHR

AEP

42h 35m

2 stops

$1,291TAP AIR PORTUGAL

Tue, Sep 22 - Tue, Oct 13

1:40 pm - 6:30 am

AEP

LHR

36h 50m

2 stops

2:05 pm - 5:20 pm

LHR

AEP

31h 15m

2 stops

$1,300Air Canada

Mon, Sep 14 - Sun, Sep 20

1:40 pm - 6:30 am

AEP

LHR

36h 50m

2 stops

5:40 pm - 5:20 pm

LHR

AEP

27h 40m

2 stops

$1,305Multiple Airlines

Mon, Sep 14 - Mon, Sep 21

9:00 pm - 9:40 am

EZE

LHR

32h 40m

2 stops

11:25 am - 8:00 am

LHR

EZE

48h 35m

2 stops

$1,306United Airlines

Sat, Apr 4 - Sat, Apr 18

1:40 pm - 11:50 am

AEP

LHR

42h 10m

2 stops

5:40 pm - 5:20 pm

LHR

AEP

27h 40m

2 stops

$1,308Air Canada

Tue, Sep 22 - Thu, Oct 22

4:50 pm - 9:35 am

EZE

LHR

36h 45m

2 stops

2:05 pm - 2:30 pm

LHR

EZE

52h 25m

3 stops

$1,308Multiple Airlines

Sat, May 16 - Mon, May 25

9:00 pm - 7:45 am

EZE

LHR

30h 45m

1 stop

1:40 pm - 8:00 am

LHR

EZE

22h 20m

1 stop

$1,316United Airlines

Sun, Apr 5 - Sun, Apr 19

4:50 pm - 3:35 pm

EZE

LHR

18h 45m

1 stop

10:05 pm - 3:40 pm

LHR

EZE

21h 35m

1 stop

$1,323Avianca

Wed, Jun 3 - Wed, Jun 24

Avianca flights from Buenos Aires to London Heathrow Airport

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

Avianca

Jun 3

EZE4:50 pmBuenos Aires Ministro Pistarini

18h 45m

1 stop

LHR3:35 pmLondon Heathrow

Jun 24

LHR10:05 pmLondon Heathrow

21h 35m

1 stop

EZE3:40 pmBuenos Aires Ministro Pistarini

$1,323

Avianca

May 6

EZE4:50 pmBuenos Aires Ministro Pistarini

18h 45m

1 stop

LHR3:35 pmLondon Heathrow

May 27

LHR10:05 pmLondon Heathrow

21h 35m

1 stop

EZE3:40 pmBuenos Aires Ministro Pistarini

$1,342

Avianca

Sep 22

EZE7:10 amBuenos Aires Ministro Pistarini

28h 25m

1 stop

LHR3:35 pmLondon Heathrow

Oct 13

LHR10:05 pmLondon Heathrow

30h 20m

1 stop

EZE12:25 amBuenos Aires Ministro Pistarini

$1,350

TAP AIR PORTUGAL flights from Buenos Aires to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Buenos Aires to London Heathrow Airport flight tickets

TAP AIR PORTUGAL

Sep 22

AEP10:20 amBuenos Aires Jorge Newbery

31h 40m

2 stops

LHR10:00 pmLondon Heathrow

Oct 13

LHR6:45 pmLondon Heathrow

42h 35m

2 stops

AEP9:20 amBuenos Aires Jorge Newbery

$1,290

TAP AIR PORTUGAL

Sep 22

AEP10:20 amBuenos Aires Jorge Newbery

44h 00m

2 stops

LHR10:20 amLondon Heathrow

Oct 13

LHR6:45 pmLondon Heathrow

42h 35m

2 stops

AEP9:20 amBuenos Aires Jorge Newbery

$1,291

TAP AIR PORTUGAL

May 25

AEP2:30 pmBuenos Aires Jorge Newbery

28h 25m

2 stops

LHR10:55 pmLondon Heathrow

Jun 12

LHR6:00 amLondon Heathrow

34h 40m

2 stops

AEP12:40 pmBuenos Aires Jorge Newbery

$1,329

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 5/21

4:35 pm-9:35 am

2 stops37h 00m

London Heathrow

Mon 6/1

2:10 pm-3:40 pm

2 stops29h 30m

$1,283

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Tue 9/22

10:20 am-10:00 pm

2 stops31h 40m

London Heathrow

Tue 10/13

6:45 pm-9:20 am

2 stops42h 35m

$1,290

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Tue 9/22

10:20 am-10:20 am

2 stops44h 00m

London Heathrow

Tue 10/13

6:45 pm-9:20 am

2 stops42h 35m

$1,291

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 9/14

1:40 pm-6:30 am

2 stops36h 50m

London Heathrow

Sun 9/20

2:05 pm-5:20 pm

2 stops31h 15m

$1,300

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Mon 9/14

1:40 pm-6:30 am

2 stops36h 50m

London Heathrow

Mon 9/21

5:40 pm-5:20 pm

2 stops27h 40m

$1,305

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sat 4/4

9:00 pm-9:40 am

2 stops32h 40m

London Heathrow

Sat 4/18

11:25 am-8:00 am

2 stops48h 35m

$1,306

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Tue 9/22

1:40 pm-11:50 am

2 stops42h 10m

London Heathrow

Thu 10/22

5:40 pm-5:20 pm

2 stops27h 40m

$1,308

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sat 5/16

4:50 pm-9:35 am

2 stops36h 45m

London Heathrow

Mon 5/25

2:05 pm-2:30 pm

3 stops52h 25m

$1,308

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 4/5

9:00 pm-7:45 am

1 stop30h 45m

London Heathrow

Sun 4/19

1:40 pm-8:00 am

1 stop22h 20m

$1,316

Quickest round-trip

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 6/3

4:50 pm-3:35 pm

1 stop18h 45m

London Heathrow

Wed 6/24

10:05 pm-3:40 pm

1 stop21h 35m

$1,323

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 Buenos Aires to London Heathrow Airport

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 Buenos Aires and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Buenos Aires, with most prices found around $1,137. If you’re not able to fly to London Heathrow Airport in February, then March is your next best option. Flight prices from Buenos Aires to London Heathrow Airport during March average around $1,317.

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

You are more likely to see cheaper flights to London Heathrow Airport from Buenos Aires when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,678 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Buenos Aires for as low as $1,332 on momondo.

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

You could potentially save up to 3% on your flight if you consider stops on a Buenos Aires to London Heathrow Airport flight.

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

When to book flights from Buenos Aires to London Heathrow Airport

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

Estimated round-trip price

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

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

Fastest flight time	15h 45m
Direct flights	Mon, Tue, Fri and Sat

The fastest flight from Buenos Aires to London Heathrow Airport takes 15h 45m

Direct flights go from Buenos Aires to London Heathrow Airport on Monday, Tuesday, Friday and Saturday. There are no airlines offering direct flights.

Search flight deals

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

How far is Buenos Aires to London Heathrow by plane?
A flight from Buenos Aires to London Heathrow will travel around 6898.3 mi. Typically, this will take 15h 45m by plane in normal conditions.
When did momondo last update prices for flights from Buenos Aires to London Heathrow Airport?
Prices for flights from Buenos Aires to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Buenos Aires to London Heathrow Airport?
There are 4 operators available for flights from Buenos Aires to London Heathrow Airport as of April 2026.
How old do you have to be to fly from Buenos Aires to London Heathrow Airport?
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 Buenos Aires to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Buenos Aires to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from Buenos Aires to London Heathrow Airport is Boeing 777, representing 67.24% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 12.07%, Airbus A350-900 at 8.62%, and Airbus A330 at 5.17%.
What is the most popular airline from Buenos Aires to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from Buenos Aires to London Heathrow Airport is LATAM Airlines, representing 78% of all bookings. The subsequent popular airline is British Airways at 22%.

Best airlines flying from Buenos Aires to London Heathrow Airport

Compare and see reviews for airlines that fly from Buenos Aires to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $1,308	Free Cancellation	Rating 7.1 11,548 reviews	Search American Airlines flights
Iberia	PriceFrom $1,390	Free Cancellation	Rating 7.0 3,164 reviews	Search Iberia flights
Lufthansa	PriceFrom $1,395	Free Cancellation	Rating 6.8 7,882 reviews	Search Lufthansa flights
British Airways	PriceFrom $1,440	Free Cancellation	Rating 6.7 7,841 reviews	Search British Airways flights

British Airways Flights From Buenos Aires to London Heathrow Airport
The lowest priced British Airways flight from Buenos Aires to London Heathrow Airport from the last 72 hours was $1,440. Generally, British Airways has 7 flights on this route every week with an average price of $1,888. British Airways is rated 6.7/10 by our users.

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Stratford-upon-Avon

Crawley

Hayes

Wembley

Stansted

Croydon

Dartford

Brentwood

Guildford

Cobham

Folkestone

Romford

Harrow

Watford

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Buenos Aires.

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

Flights from Buenos Aires to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Buenos Aires and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

An easier way to manage your London Heathrow Airport trip

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Flights to London Gatwick Airportfrom $475

Flights to London City Airportfrom $645

Flights to London Stansted Airportfrom $508

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Flights to Belfast Intl Airportfrom $704

Flights to London Southend Airportfrom $680

Flights to Belfast City Airportfrom $687

Cheap flights from Buenos Aires to London from $619

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buenos Aires to London departing on 5/6. 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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Avianca flights from Buenos Aires to London Heathrow Airport

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

TAP AIR PORTUGAL flights from Buenos Aires to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Buenos Aires to London Heathrow Airport flight tickets

momondo Fare Finder

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

See travel insights to London from

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

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

What is the cheapest month to fly to London Heathrow Airport?

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

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

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

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

What airlines fly to London Heathrow Airport?

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

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

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

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

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

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

When to book flights from Buenos Aires to London Heathrow Airport

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

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

Fastest flight time

Direct flights

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

Best airlines flying from Buenos Aires to London Heathrow Airport

Compare and see reviews for airlines that fly from Buenos Aires to London Heathrow Airport with momondo

British Airways Flights From Buenos Aires to London Heathrow Airport

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An easier way to manage your London Heathrow Airport trip

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

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