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Cheap flights from Buenos Aires to London from $662

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 9/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Buenos Aires to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:00 pm - 7:55 am
EZE
-
LHR
30h 55m
1 stop
United Airlines Logo
1:40 pm - 8:00 am
LHR
-
EZE
22h 20m
1 stop
$1,371United Airlines
Mon, Aug 31 - Tue, Sep 8
United Airlines Logo
9:00 pm - 7:55 am
EZE
-
LHR
30h 55m
1 stop
United Airlines Logo
1:40 pm - 8:00 am
LHR
-
EZE
22h 20m
1 stop
$1,375United Airlines
Fri, Sep 18 - Thu, Oct 8
Multiple Airlines Logo
12:15 pm - 3:35 pm
EZE
-
LHR
23h 20m
2 stops
Multiple Airlines Logo
10:05 pm - 3:40 pm
LHR
-
EZE
21h 35m
1 stop
$1,377Multiple Airlines
Fri, Sep 25 - Mon, Oct 5
LEVEL Logo
10:50 am - 8:05 pm
EZE
-
LHR
29h 15m
1 stop
LEVEL Logo
9:55 am - 8:55 am
LHR
-
EZE
27h 00m
1 stop
$1,378LEVEL
Tue, Jul 7 - Tue, Jul 14
United Airlines Logo
9:00 pm - 6:45 am
EZE
-
LHR
29h 45m
2 stops
United Airlines Logo
1:40 pm - 8:00 am
LHR
-
EZE
22h 20m
1 stop
$1,380United Airlines
Fri, Sep 18 - Fri, Oct 9
Air Canada Logo
1:40 pm - 6:30 am
AEP
-
LHR
36h 50m
2 stops
Air Canada Logo
2:05 pm - 5:20 pm
LHR
-
AEP
31h 15m
2 stops
$1,381Air Canada
Thu, Jul 30 - Fri, Aug 28
Air Canada Logo
4:35 pm - 6:30 am
EZE
-
LHR
33h 55m
3 stops
Air Canada Logo
2:05 pm - 2:30 pm
LHR
-
EZE
52h 25m
3 stops
$1,382Air Canada
Thu, Aug 13 - Thu, Sep 17
Multiple Airlines Logo
1:40 pm - 6:30 am
AEP
-
LHR
36h 50m
2 stops
Multiple Airlines Logo
2:05 pm - 5:20 pm
LHR
-
AEP
31h 15m
2 stops
$1,382Multiple Airlines
Thu, Jul 30 - Wed, Aug 12
American Airlines Logo
9:05 pm - 9:40 pm
EZE
-
LHR
20h 35m
1 stop
American Airlines Logo
12:30 pm - 11:05 am
LHR
-
EZE
26h 35m
1 stop
$1,383American Airlines
Thu, Aug 13 - Thu, Sep 17
American Airlines Logo
9:05 pm - 6:25 am
EZE
-
LHR
29h 20m
1 stop
American Airlines Logo
3:20 pm - 11:05 am
LHR
-
EZE
23h 45m
1 stop
$1,384American Airlines
Wed, Aug 26 - Sat, Sep 12

ITA Airways flights from Buenos Aires to London Heathrow Airport

Our best ITA Airways deals on Buenos Aires to London Heathrow Airport flight tickets
ITA Airways
Nov 9
EZE1:50 pmBuenos Aires Ministro Pistarini
16h 50m
1 stop
LHR9:40 amLondon Heathrow
Nov 16
LHR4:30 pmLondon Heathrow
30h 20m
1 stop
EZE7:50 pmBuenos Aires Ministro Pistarini
$1,402
ITA Airways
Aug 6
EZE12:55 pmBuenos Aires Ministro Pistarini
16h 45m
1 stop
LHR9:40 amLondon Heathrow
Aug 19
LHR4:30 pmLondon Heathrow
19h 00m
1 stop
EZE7:30 amBuenos Aires Ministro Pistarini
$1,404
ITA Airways
Jun 30
EZE1:30 amBuenos Aires Ministro Pistarini
28h 10m
1 stop
LHR9:40 amLondon Heathrow
Jul 14
LHR4:30 pmLondon Heathrow
19h 00m
1 stop
EZE7:30 amBuenos Aires Ministro Pistarini
$1,421

LATAM Airlines flights from Buenos Aires to London Heathrow Airport

Our best LATAM Airlines deals on Buenos Aires to London Heathrow Airport flight tickets
LATAM Airlines
Aug 5
AEP6:20 pmBuenos Aires Jorge Newbery
16h 45m
1 stop
LHR3:05 pmLondon Heathrow
Aug 26
LHR9:20 pmLondon Heathrow
16h 05m
1 stop
AEP9:25 amBuenos Aires Jorge Newbery
$1,467
LATAM Airlines
Aug 5
AEP6:20 pmBuenos Aires Jorge Newbery
16h 45m
1 stop
LHR3:05 pmLondon Heathrow
Aug 26
LHR9:20 pmLondon Heathrow
17h 10m
1 stop
AEP10:30 amBuenos Aires Jorge Newbery
$1,468
LATAM Airlines
Aug 5
AEP6:20 pmBuenos Aires Jorge Newbery
16h 45m
1 stop
LHR3:05 pmLondon Heathrow
Aug 26
LHR9:20 pmLondon Heathrow
17h 10m
1 stop
AEP10:30 amBuenos Aires Jorge Newbery
$1,473

momondo Fare Finder

 
Customize your flight search to find flights from Buenos Aires to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 5, 2026.
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

Mon 8/31

9:00 pm-7:55 am

1 stop30h 55m

London Heathrow

Tue 9/8

1:40 pm-8:00 am

1 stop22h 20m

$1,371

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Fri 9/18

9:00 pm-7:55 am

1 stop30h 55m

London Heathrow

Thu 10/8

1:40 pm-8:00 am

1 stop22h 20m

$1,375
Quickest round-trip

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Fri 9/25

12:15 pm-3:35 pm

2 stops23h 20m

London Heathrow

Mon 10/5

10:05 pm-3:40 pm

1 stop21h 35m

$1,377

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Tue 7/7

10:50 am-8:05 pm

1 stop29h 15m

London Heathrow

Tue 7/14

9:55 am-8:55 am

1 stop27h 00m

$1,378

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Fri 9/18

9:00 pm-6:45 am

2 stops29h 45m

London Heathrow

Fri 10/9

1:40 pm-8:00 am

1 stop22h 20m

$1,380

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 7/30

1:40 pm-6:30 am

2 stops36h 50m

London Heathrow

Fri 8/28

2:05 pm-5:20 pm

2 stops31h 15m

$1,381

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 8/13

4:35 pm-6:30 am

3 stops33h 55m

London Heathrow

Thu 9/17

2:05 pm-2:30 pm

3 stops52h 25m

$1,382

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 7/30

1:40 pm-6:30 am

2 stops36h 50m

London Heathrow

Wed 8/12

2:05 pm-5:20 pm

2 stops31h 15m

$1,382

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Thu 8/13

9:05 pm-9:40 pm

1 stop20h 35m

London Heathrow

Thu 9/17

12:30 pm-11:05 am

1 stop26h 35m

$1,383

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 8/26

9:05 pm-6:25 am

1 stop29h 20m

London Heathrow

Sat 9/12

3:20 pm-11:05 am

1 stop23h 45m

$1,384

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

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 July is, on average, the cheapest month to fly to London Heathrow Airport from Buenos Aires, with most prices found around $115. If you’re not able to fly to London Heathrow Airport in July, then February is your next best option. Flight prices from Buenos Aires to London Heathrow Airport during February average around $130.

What is the cheapest Buenos Aires to London Heathrow flight route?

Fly from Buenos Aires Ministro Pistarini to London Heathrow for the best Buenos Aires - London Heathrow flight prices

How far in advance should I book a flight from Buenos Aires 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 $1,625 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.

What cabin class options are available on Buenos Aires to London Heathrow Airport flights?

There is only 1 cabin class available to choose from on Buenos Aires to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

Thu
The fastest flight from Buenos Aires to London Heathrow Airport takes 15h 45m
Direct flights go from Buenos Aires to London Heathrow Airport on Thursday. 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?

  • 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?

  • What is the most popular airline 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
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $1,308Free CancellationRating
7.1
11,644 reviews
Search American Airlines flights
IberiaPriceFrom $1,390Free CancellationRating
7.0
3,224 reviews
Search Iberia flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Luton
Dover
Hayes
Crawley
Croydon
Wembley
Stratford-upon-Avon
Stansted
Slough
Harrow
Brentwood
Watford
Cobham
Guildford
Folkestone
Uxbridge
Romford

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.

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