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Cheap flights from Buenos Aires to London Heathrow Airport from $670

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 Heathrow Airport departing on 5/7. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Buenos Aires to London.
 Logo
1:25 pm - 3:05 pmAEP-LHR
21h 40m1 stop
 Logo
9:20 pm - 2:20 pmLHR-AEP
21h 00m1 stop
$1,170
Find Deal
Mon, Jun 9 - Sun, Jun 15
 Logo
1:25 pm - 3:05 pmAEP-LHR
21h 40m1 stop
 Logo
9:20 pm - 2:20 pmLHR-AEP
21h 00m1 stop
$1,179
Find Deal
Mon, Jun 9 - Sun, Jun 15
Air Canada Logo
4:35 pm - 10:00 amEZE-LHR
37h 25m2 stops
Air Canada Logo
6:00 pm - 3:25 pmLHR-EZE
24h 25m2 stops
$1,193Air Canada
Find Deal
Wed, Oct 15 - Fri, Nov 14
Aeromexico Logo
11:25 pm - 4:00 pmEZE-LHR
36h 35m1 stop
Aeromexico Logo
10:30 pm - 9:25 pmLHR-EZE
26h 55m1 stop
$1,205Aeromexico
Find Deal
Tue, Aug 26 - Tue, Sep 23
Air Canada Logo
4:35 pm - 11:50 amEZE-LHR
39h 15m2 stops
Air Canada Logo
8:30 am - 2:30 pmLHR-EZE
34h 00m2 stops
$1,247Air Canada
Find Deal
Mon, Sep 8 - Wed, Oct 8
LATAM Airlines Logo
8:40 am - 3:05 pmAEP-LHR
26h 25m2 stops
LATAM Airlines Logo
8:15 pm - 7:40 amLHR-AEP
38h 25m2 stops
$1,255LATAM Airlines
Find Deal
Sat, Oct 11 - Mon, Nov 3
LATAM Airlines Logo
2:55 pm - 3:05 pmAEP-LHR
20h 10m1 stop
LATAM Airlines Logo
9:20 pm - 12:00 pmLHR-AEP
18h 40m1 stop
$1,258LATAM Airlines
Find Deal
Tue, Jun 3 - Mon, Jun 9
British Airways Logo
12:15 pm - 8:10 amEZE-LHR
15h 55m1 stop
British Airways Logo
10:10 pm - 11:50 amLHR-EZE
16h 40m1 stop
$1,441British Airways
Find Deal
Sat, Oct 11 - Mon, Nov 3
Aeromexico Logo
11:25 pm - 4:00 pmEZE-LHR
36h 35m1 stop
Aeromexico Logo
10:30 pm - 9:25 pmLHR-EZE
26h 55m1 stop
$1,550Aeromexico
Find Deal
Tue, Aug 26 - Thu, Sep 18
British Airways Logo
12:15 pm - 8:15 amEZE-LHR
16h 00m1 stop
British Airways Logo
9:55 pm - 10:35 amLHR-EZE
16h 40m1 stop
$1,578British Airways
Find Deal
Fri, Sep 19 - Sat, Oct 11

United Airlines flights from Buenos Aires to London Heathrow Airport

Our best United Airlines deals on Buenos Aires to London Heathrow Airport flight tickets
United Airlines
May 7
EZE9:00 pmBuenos Aires Ministro Pistarini
30h 40m
1 stop
LHR7:40 amLondon Heathrow
May 18
LHR1:40 pmLondon Heathrow
22h 20m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
United Airlines
Aug 31
EZE9:00 pmBuenos Aires Ministro Pistarini
30h 40m
1 stop
LHR7:40 amLondon Heathrow
Sep 16
LHR10:00 amLondon Heathrow
26h 00m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
United Airlines
Aug 31
EZE9:00 pmBuenos Aires Ministro Pistarini
59h 20m
2 stops
LHR12:20 pmLondon Heathrow
Sep 16
LHR10:00 amLondon Heathrow
26h 00m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini

Ethiopian Air flights from Buenos Aires to London Heathrow Airport

Our best Ethiopian Air deals on Buenos Aires to London Heathrow Airport flight tickets
Ethiopian Air
Jun 3
EZE9:55 pmBuenos Aires Ministro Pistarini
31h 10m
2 stops
LHR9:05 amLondon Heathrow
Jun 9
LHR9:00 pmLondon Heathrow
27h 25m
2 stops
EZE8:25 pmBuenos Aires Ministro Pistarini
Ethiopian Air
May 7
EZE9:55 pmBuenos Aires Ministro Pistarini
29h 05m
2 stops
LHR7:00 amLondon Heathrow
May 21
LHR9:00 pmLondon Heathrow
27h 25m
2 stops
EZE8:25 pmBuenos Aires Ministro Pistarini
Ethiopian Air
Jun 1
EZE9:55 pmBuenos Aires Ministro Pistarini
39h 05m
2 stops
LHR5:00 pmLondon Heathrow
Jun 15
LHR9:00 pmLondon Heathrow
27h 25m
2 stops
EZE8:25 pmBuenos Aires Ministro Pistarini

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 March is, on average, the cheapest month to fly to London Heathrow Airport from Buenos Aires, with most prices found around $1,399. If you’re not able to fly to London Heathrow Airport in March, then February is your next best option. Flight prices from Buenos Aires to London Heathrow Airport during February average around $1,403.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $1,389. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $1,436.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Buenos Aires to London Heathrow Airport in the afternoon for as low as $1,225. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $2,027.

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 to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Buenos Aires when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,740 when searching 13 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 $1,381 on momondo.

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

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

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

As of April 2025, prices for Buenos Aires to London Heathrow Airport flights are approximately 9% more expensive when compared to flights at the same time last year.

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

Best Price Found

$670

Fastest flight time

15h 25m

Direct flights

None
The best one-way flight to London Heathrow Airport from Buenos Aires in the past 72 hours is $670. The best round-trip flight deal from Buenos Aires to London Heathrow Airport found on momondo in the last 72 hours is $1,170.
The fastest flight from Buenos Aires to London Heathrow Airport takes 15h 25m
There are no direct flights from Buenos Aires to London Heathrow Airport. Popular non-direct routes for this connection are Buenos Aires Ministro Pistarini Airport - London Heathrow Airport and Buenos Aires Jorge Newbery Airport - 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 25m 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
LufthansaPriceFrom $1,007Free CancellationRating
6.7
7,042 reviews
Search Lufthansa flights
British AirwaysPriceFrom $1,302Free CancellationRating
6.6
6,830 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 $1,302. Generally, British Airways has 7 flights on this route every week with an average price of $1,555. British Airways is rated 6.6/10 by our users.


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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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