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Cheap flights from Buenos Aires to London from $697

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 3/4. 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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Find the cheapest flights from Buenos Aires to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:45 pm - 11:20 am
EZE
-
LHR
39h 35m
2 stops
Air Canada Logo
1:25 pm - 3:10 pm
LHR
-
EZE
52h 45m
3 stops
$1,000Air Canada
Wed, Mar 4 - Mon, Mar 16
Air Canada Logo
4:45 pm - 7:10 am
EZE
-
LHR
35h 25m
3 stops
Air Canada Logo
1:25 pm - 3:10 pm
LHR
-
EZE
52h 45m
3 stops
$1,007Air Canada
Wed, Mar 4 - Mon, Mar 16
Air Canada Logo
4:30 pm - 6:35 am
EZE
-
LHR
34h 05m
2 stops
Air Canada Logo
5:40 pm - 2:30 pm
LHR
-
EZE
24h 50m
2 stops
$1,048Air Canada
Mon, Apr 27 - Wed, May 6
Multiple Airlines Logo
4:50 pm - 11:50 am
EZE
-
LHR
39h 00m
2 stops
Multiple Airlines Logo
2:05 pm - 2:30 pm
LHR
-
EZE
52h 25m
3 stops
$1,073Multiple Airlines
Sat, May 16 - Mon, May 25
United Airlines Logo
10:05 pm - 9:40 am
EZE
-
LHR
32h 35m
2 stops
United Airlines Logo
12:05 pm - 7:20 am
LHR
-
EZE
22h 15m
1 stop
$1,078United Airlines
Sun, Feb 15 - Tue, Mar 3
United Airlines Logo
11:55 pm - 10:15 am
EZE
-
LHR
31h 20m
1 stop
United Airlines Logo
10:00 am - 7:20 am
LHR
-
EZE
24h 20m
1 stop
$1,080United Airlines
Fri, Feb 20 - Tue, Mar 3
United Airlines Logo
9:05 pm - 9:40 am
EZE
-
LHR
33h 35m
2 stops
United Airlines Logo
1:40 pm - 8:00 am
LHR
-
EZE
22h 20m
1 stop
$1,086United Airlines
Mon, Mar 23 - Mon, Mar 30
United Airlines Logo
10:55 pm - 10:15 am
EZE
-
LHR
32h 20m
1 stop
United Airlines Logo
10:00 am - 8:20 am
LHR
-
EZE
25h 20m
1 stop
$1,087United Airlines
Mon, Mar 9 - Tue, Mar 24
LATAM Airlines Logo
2:55 pm - 5:15 pm
AEP
-
LHR
23h 20m
2 stops
LATAM Airlines Logo
6:15 am - 9:40 am
LHR
-
AEP
30h 25m
2 stops
$1,300LATAM Airlines
Fri, Mar 13 - Mon, Mar 23
LATAM Airlines Logo
11:45 am - 3:05 pm
AEP
-
LHR
23h 20m
1 stop
LATAM Airlines Logo
8:00 pm - 4:00 pm
LHR
-
AEP
24h 00m
2 stops
$1,301LATAM Airlines
Sun, Apr 26 - Thu, May 7

Air Canada flights from Buenos Aires to London Heathrow Airport

Our best Air Canada deals on Buenos Aires to London Heathrow Airport flight tickets
Air Canada
Mar 4
EZE4:45 pmBuenos Aires Ministro Pistarini
39h 35m
2 stops
LHR11:20 amLondon Heathrow
Mar 16
LHR1:25 pmLondon Heathrow
52h 45m
3 stops
EZE3:10 pmBuenos Aires Ministro Pistarini
$1,000
Air Canada
Mar 4
EZE4:45 pmBuenos Aires Ministro Pistarini
35h 25m
3 stops
LHR7:10 amLondon Heathrow
Mar 16
LHR1:25 pmLondon Heathrow
52h 45m
3 stops
EZE3:10 pmBuenos Aires Ministro Pistarini
$1,007
Air Canada
Apr 27
EZE4:30 pmBuenos Aires Ministro Pistarini
34h 05m
2 stops
LHR6:35 amLondon Heathrow
May 6
LHR5:40 pmLondon Heathrow
24h 50m
2 stops
EZE2:30 pmBuenos Aires Ministro Pistarini
$1,048

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
Mar 13
AEP2:55 pmBuenos Aires Jorge Newbery
23h 20m
2 stops
LHR5:15 pmLondon Heathrow
Mar 23
LHR6:15 amLondon Heathrow
30h 25m
2 stops
AEP9:40 amBuenos Aires Jorge Newbery
$1,300
LATAM Airlines
Apr 26
AEP11:45 amBuenos Aires Jorge Newbery
23h 20m
1 stop
LHR3:05 pmLondon Heathrow
May 7
LHR8:00 pmLondon Heathrow
24h 00m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
$1,301
LATAM Airlines
Mar 4
AEP6:20 pmBuenos Aires Jorge Newbery
16h 45m
1 stop
LHR2:05 pmLondon Heathrow
Mar 16
LHR7:40 pmLondon Heathrow
23h 20m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
$1,303

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 February 3, 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

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 3/4

4:45 pm-11:20 am

2 stops39h 35m

London Heathrow

Mon 3/16

1:25 pm-3:10 pm

3 stops52h 45m

$1,000

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 3/4

4:45 pm-7:10 am

3 stops35h 25m

London Heathrow

Mon 3/16

1:25 pm-3:10 pm

3 stops52h 45m

$1,007

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 4/27

4:30 pm-6:35 am

2 stops34h 05m

London Heathrow

Wed 5/6

5:40 pm-2:30 pm

2 stops24h 50m

$1,048

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sat 5/16

4:50 pm-11:50 am

2 stops39h 00m

London Heathrow

Mon 5/25

2:05 pm-2:30 pm

3 stops52h 25m

$1,073

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 2/15

10:05 pm-9:40 am

2 stops32h 35m

London Heathrow

Tue 3/3

12:05 pm-7:20 am

1 stop22h 15m

$1,078

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Fri 2/20

11:55 pm-10:15 am

1 stop31h 20m

London Heathrow

Tue 3/3

10:00 am-7:20 am

1 stop24h 20m

$1,080

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 3/23

9:05 pm-9:40 am

2 stops33h 35m

London Heathrow

Mon 3/30

1:40 pm-8:00 am

1 stop22h 20m

$1,086

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 3/9

10:55 pm-10:15 am

1 stop32h 20m

London Heathrow

Tue 3/24

10:00 am-8:20 am

1 stop25h 20m

$1,087

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Fri 3/13

2:55 pm-5:15 pm

2 stops23h 20m

London Heathrow

Mon 3/23

6:15 am-9:40 am

2 stops30h 25m

$1,300

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Sun 4/26

11:45 am-3:05 pm

1 stop23h 20m

London Heathrow

Thu 5/7

8:00 pm-4:00 pm

2 stops24h 00m

$1,301

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 February is, on average, the cheapest month to fly to London Heathrow Airport from Buenos Aires, with most prices found around $1,164. 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 $1,664 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 $1,423 on momondo.

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

You could potentially save up to 18% 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

16h 15m

Direct flights

None
The fastest flight from Buenos Aires to London Heathrow Airport takes 16h 15m
There are no direct flights from Buenos Aires to London Heathrow Airport. There are no popular flight routes from Buenos Aires to London Heathrow Airport.
Search flight deals

  • 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 16h 15m 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
IberiaPriceFrom $1,390Free CancellationRating
7.0
3,102 reviews
Search Iberia flights
LufthansaPriceFrom $1,395Free CancellationRating
6.8
7,758 reviews
Search Lufthansa flights
British AirwaysPriceFrom $1,504Free CancellationRating
6.7
7,711 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 $1,504. Generally, British Airways has 7 flights on this route every week with an average price of $1,827. British Airways is rated 6.7/10 by our users.

Traveling to a place near London?

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

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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