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Cheap flights from Buenos Aires to London Heathrow Airport from £496

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 21/5. 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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Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from Buenos Aires to London.
Aeromexico Logo
23:25 - 16:00EZE-LHR
36h 35m1 stop
Aeromexico Logo
22:30 - 21:25LHR-EZE
26h 55m1 stop
£865Aeromexico
Find Deal
Thu, 8 May - Thu, 22 May
Air Canada Logo
16:35 - 09:35EZE-LHR
37h 00m2 stops
Air Canada Logo
08:30 - 14:30LHR-EZE
34h 00m2 stops
£878Air Canada
Find Deal
Mon, 29 Sep - Wed, 8 Oct
 Logo
00:05 - 10:20AEP-LHR
30h 15m2 stops
 Logo
18:45 - 02:20LHR-AEP
35h 35m2 stops
Mon, 2 Jun - Sat, 7 Jun
 Logo
10:20 - 10:20AEP-LHR
20h 00m2 stops
 Logo
18:45 - 02:20LHR-AEP
35h 35m2 stops
Tue, 3 Jun - Sat, 7 Jun
LATAM Airlines Logo
18:20 - 15:05AEP-LHR
16h 45m1 stop
LATAM Airlines Logo
21:20 - 17:00LHR-AEP
23h 40m1 stop
£981LATAM Airlines
Find Deal
Thu, 22 May - Thu, 12 Jun
LATAM Airlines Logo
12:58 - 15:05EZE-LHR
22h 07m2 stops
LATAM Airlines Logo
21:20 - 01:25LHR-EZE
32h 05m2 stops
£993LATAM Airlines
Find Deal
Tue, 27 May - Sun, 22 Jun
British Airways Logo
12:15 - 07:55EZE-LHR
15h 40mdirect
British Airways Logo
21:55 - 10:35LHR-EZE
16h 40mdirect
£1,038British Airways
Find Deal
Wed, 17 Sep - Sun, 28 Sep
British Airways Logo
12:15 - 07:55EZE-LHR
15h 40mdirect
British Airways Logo
21:55 - 10:35LHR-EZE
16h 40mdirect
£1,104British Airways
Find Deal
Thu, 22 May - Thu, 12 Jun
Iberia Logo
21:30 - 21:45EZE-LHR
20h 15m1 stop
Iberia Logo
19:40 - 17:25LHR-EZE
24h 45m1 stop
£1,124Iberia
Find Deal
Mon, 22 Sep - Tue, 23 Dec
Iberia Logo
21:30 - 18:15EZE-LHR
16h 45m1 stop
Iberia Logo
22:10 - 11:50LHR-EZE
16h 40m1 stop
£1,139Iberia
Find Deal
Mon, 22 Sep - Sat, 27 Dec

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
29 Sept
EZE16:35Buenos Aires Ministro Pistarini
37h 00m
2 stops
LHR09:35London Heathrow
8 Oct
LHR08:30London Heathrow
34h 00m
2 stops
EZE14:30Buenos Aires Ministro Pistarini
Air Canada
27 Sept
EZE16:35Buenos Aires Ministro Pistarini
34h 00m
2 stops
LHR06:35London Heathrow
8 Oct
LHR08:30London Heathrow
34h 00m
2 stops
EZE14:30Buenos Aires Ministro Pistarini
Air Canada
29 Sept
EZE16:35Buenos Aires Ministro Pistarini
39h 15m
2 stops
LHR11:50London Heathrow
8 Oct
LHR09:30London Heathrow
33h 00m
3 stops
EZE14:30Buenos Aires Ministro Pistarini

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
22 May
AEP18:20Buenos Aires Jorge Newbery
16h 45m
1 stop
LHR15:05London Heathrow
12 Jun
LHR21:20London Heathrow
23h 40m
1 stop
AEP17:00Buenos Aires Jorge Newbery
LATAM Airlines
27 May
EZE12:58Buenos Aires Ministro Pistarini
22h 07m
2 stops
LHR15:05London Heathrow
22 Jun
LHR21:20London Heathrow
32h 05m
2 stops
EZE01:25Buenos Aires Ministro Pistarini
LATAM Airlines
22 May
AEP18:20Buenos Aires Jorge Newbery
16h 45m
1 stop
LHR15:05London Heathrow
12 Jun
LHR21:20London Heathrow
23h 40m
1 stop
AEP17:00Buenos Aires Jorge Newbery

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 cheapest month to fly to London Heathrow Airport?

In general, March is the cheapest month to fly from Buenos Aires to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £1,086. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Buenos Aires averaging around £1,131.

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

On average, the least expensive day to fly to London Heathrow Airport from Buenos Aires is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £0. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Tuesday is £1,638.

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 £1,088. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £1,315 on average. Flights to London Heathrow Airport from Buenos Aires in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £1,325 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 £1,063 on momondo.

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

There are 2 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 return 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

£496

Fastest flight time

15h 40m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Buenos Aires in the past 72 hours is £496. The best return flight deal from Buenos Aires to London Heathrow Airport found on momondo in the last 72 hours is £865.
The fastest flight from Buenos Aires to London Heathrow Airport takes 15h 40m
Direct flights go from Buenos Aires to London Heathrow Airport every day.

  • How far is Buenos Aires to London Heathrow by plane?

    London Heathrow is 6898.3 mi away from Buenos Aires. 15h 40m is a normal flight duration for this route.

  • 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 refresh daily.

  • 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buenos Aires to London Heathrow Airport.

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

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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
Air FrancePriceFrom £853Free CancellationRating
7.4
1,427 reviews
Search Air France flights
IberiaPriceFrom £924Free CancellationRating
7.0
2,657 reviews
Search Iberia flights
LATAM AirlinesPriceFrom £1,053Free CancellationRating
7.5
1,754 reviews
Search LATAM Airlines flights
British AirwaysPriceFrom £1,102Free CancellationRating
6.6
6,715 reviews
Search British Airways flights
  • British Airways Flights From Buenos Aires to London Heathrow Airport

    British Airways flight deals from Buenos Aires to London Heathrow Airport start from £1,424 round-trip. Over the 6 British Airways flights for this route in a normal week, average airfare is usually £1,819 round-trip - but some users have found much cheaper deals with momondo.


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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Buenos Aires to London for you.

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

Yes. momondo enables you to select and highlight flights to London from Buenos Aires with this policy.

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?

Price alerts on flights to London from Buenos Aires are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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