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Cheap flights from London Heathrow Airport to Buenos Aires from $533

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Buenos Aires departing on 3/30. 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 London Heathrow Airport to Buenos Aires

Cheap round-trip flights

These are some of the best round-trip flight deals from London Heathrow Airport to Buenos Aires that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London Heathrow Airport to Buenos Aires.

Cheap last minute flights

Planning a quick getaway from London Heathrow Airport to Buenos Aires? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Buenos Aires, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from London Heathrow Airport to Buenos Aires

Find recent round-trip train or bus tickets from London Heathrow Airport to Buenos Aires.

All round-trip flight deals from London Heathrow Airport to Buenos Aires

The cheapest plane tickets from London Heathrow Airport to Buenos Aires found on KAYAK recently.
11:10 am - 2:25 pmLHR-EZE
30h 15m2 stops
4:00 pm - 11:50 amEZE-LHR
40h 50m2 stops
$931Air Canada
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Mon, Mar 17 - Wed, Mar 26
11:10 am - 2:25 pmLHR-EZE
30h 15m2 stops
4:00 pm - 8:35 pmEZE-LHR
25h 35m3 stops
$981Air Canada
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Mon, Mar 17 - Wed, Mar 26
6:15 pm - 10:25 pmLHR-EZE
56h 10m2 stops
11:55 pm - 3:05 pmEZE-LHR
35h 10m2 stops
$989Turkish Airlines
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Tue, Jun 3 - Wed, Jun 11
6:30 am - 10:25 pmLHR-EZE
43h 55m2 stops
11:55 pm - 4:40 pmEZE-LHR
36h 45m2 stops
$1,001Turkish Airlines
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Wed, Jun 18 - Mon, Sep 15
5:25 pm - 5:25 pmLHR-EZE
27h 00m1 stop
6:10 pm - 2:55 pmEZE-LHR
16h 45m1 stop
$1,002
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Tue, Feb 18 - Mon, Jun 16
7:05 pm - 5:25 pmLHR-EZE
25h 20m1 stop
1:35 pm - 8:35 amEZE-LHR
16h 00m1 stop
$1,004
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Tue, Feb 4 - Thu, Feb 13
8:45 am - 7:55 amLHR-EZE
26h 10m2 stops
4:40 pm - 6:25 pmEZE-LHR
21h 45m2 stops
$1,044Lufthansa
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Thu, Mar 20 - Wed, Apr 2
7:10 pm - 4:20 pmLHR-EZE
25h 10m1 stop
9:30 pm - 5:15 pmEZE-LHR
15h 45m1 stop
$1,056British Airways
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Mon, Jul 14 - Mon, Jul 21
7:40 pm - 5:25 pmLHR-EZE
24h 45m1 stop
1:35 pm - 8:35 amEZE-LHR
16h 00m1 stop
$1,074British Airways
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Sat, Feb 8 - Tue, Feb 25
6:30 pm - 7:55 amLHR-EZE
16h 25m1 stop
4:40 pm - 7:40 pmEZE-LHR
23h 00m2 stops
$1,079Lufthansa
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Sat, Mar 22 - Mon, Mar 31
9:55 am - 10:15 amLHR-EZE
28h 20m1 stop
$533Vueling
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Sun, Mar 30
9:55 am - 1:00 pmLHR-AEP
30h 05m3 stops
Thu, Mar 20
9:10 am - 7:20 amLHR-EZE
25h 10m2 stops
$690United Airlines
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Tue, Jan 28
1:40 pm - 8:00 amLHR-EZE
22h 20m1 stop
$693United Airlines
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Sun, May 4
9:40 pm - 12:15 amLHR-EZE
29h 35m1 stop
$694Avianca
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Tue, Feb 18
9:40 pm - 5:40 amLHR-AEP
35h 00m1 stop
$710Avianca
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Tue, Feb 18
10:35 pm - 10:25 pmLHR-EZE
26h 50m2 stops
$747Turkish Airlines
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Tue, Mar 18
10:35 pm - 10:25 pmLHR-EZE
26h 50m2 stops
$772Turkish Airlines
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Sun, Mar 16
9:55 pm - 10:35 amLHR-EZE
16h 40mnonstop
$820British Airways
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Sun, Mar 30
10:00 pm - 10:35 amLHR-EZE
16h 35m1 stop
$1,297British Airways
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Fri, Jul 11
6:30 am - 9:00 amLHR-EZE
29h 30m2 stops
9:00 pm - 7:05 amEZE-LHR
31h 05m2 stops
$1,136Delta
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Fri, Jan 24 - Sat, Feb 15
3:50 pm - 9:45 amLHR-EZE
20h 55m1 stop
9:00 pm - 7:05 amEZE-LHR
31h 05m2 stops
$1,141Delta
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Fri, Jan 24 - Sat, Feb 15
8:40 am - 9:00 amLHR-EZE
27h 20m2 stops
9:00 pm - 7:05 amEZE-LHR
31h 05m2 stops
$1,145Delta
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Fri, Jan 24 - Sat, Feb 15
8:15 pm - 9:40 amLHR-AEP
16h 25m1 stop
10:55 pm - 2:05 pmAEP-LHR
36h 10m1 stop
$1,317LATAM Airlines
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Fri, Jan 24 - Sat, Feb 15
8:15 pm - 9:40 amLHR-AEP
16h 25m1 stop
11:45 am - 2:05 pmAEP-LHR
23h 20m2 stops
$1,330LATAM Airlines
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Fri, Jan 24 - Sat, Feb 15
12:05 pm - 11:50 amLHR-EZE
26h 45m2 stops
2:40 pm - 1:40 pmEZE-LHR
44h 00m3 stops
$1,450SWISS
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Fri, Jan 24 - Sat, Feb 15
6:40 pm - 11:50 amLHR-EZE
20h 10m2 stops
2:40 pm - 1:40 pmEZE-LHR
44h 00m3 stops
$1,459SWISS
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Fri, Jan 24 - Sat, Feb 15
9:40 pm - 6:05 amLHR-EZE
35h 25m1 stop
1:45 am - 2:35 pmEZE-LHR
33h 50m1 stop
$1,570Avianca
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Fri, Jan 24 - Fri, Feb 14
9:40 pm - 6:05 amLHR-EZE
35h 25m1 stop
1:45 am - 2:35 pmEZE-LHR
33h 50m1 stop
$1,577Avianca
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Fri, Jan 24 - Fri, Feb 14
6:30 pm - 11:25 amLHR-EZE
19h 55m2 stops
2:40 pm - 1:00 pmEZE-LHR
19h 20m2 stops
$3,392
Find Deal
Sun, Jan 26 - Wed, Feb 12
10:10 pm - 11:50 amLHR-EZE
16h 40mnonstop
1:35 pm - 8:35 amEZE-LHR
16h 00mnonstop
$1,571British Airways
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Mon, Feb 17 - Mon, Feb 24

Air Canada flights from London Heathrow Airport to Buenos Aires

Our best Air Canada deals on London Heathrow Airport to Buenos Aires flight tickets
Air Canada
Mar 17
LHR11:10 amLondon Heathrow
30h 15m
2 stops
EZE2:25 pmBuenos Aires Ministro Pistarini
Mar 26
EZE4:00 pmBuenos Aires Ministro Pistarini
40h 50m
2 stops
LHR11:50 amLondon Heathrow
Air Canada
Mar 17
LHR11:10 amLondon Heathrow
30h 15m
2 stops
EZE2:25 pmBuenos Aires Ministro Pistarini
Mar 26
EZE4:00 pmBuenos Aires Ministro Pistarini
25h 35m
3 stops
LHR8:35 pmLondon Heathrow
Air Canada
May 11
LHR5:40 pmLondon Heathrow
27h 40m
2 stops
AEP5:20 pmBuenos Aires Jorge Newbery
May 25
AEP1:40 pmBuenos Aires Jorge Newbery
39h 55m
2 stops
LHR9:35 amLondon Heathrow

American Airlines flights from London Heathrow Airport to Buenos Aires

Our best American Airlines deals on London Heathrow Airport to Buenos Aires flight tickets
American Airlines
Mar 17
LHR12:35 pmLondon Heathrow
22h 10m
1 stop
EZE7:45 amBuenos Aires Ministro Pistarini
Mar 26
EZE8:30 pmBuenos Aires Ministro Pistarini
22h 40m
2 stops
LHR10:10 pmLondon Heathrow
American Airlines
Mar 19
LHR12:35 pmLondon Heathrow
22h 10m
1 stop
EZE7:45 amBuenos Aires Ministro Pistarini
Mar 23
EZE11:59 pmBuenos Aires Ministro Pistarini
30h 41m
1 stop
LHR9:40 amLondon Heathrow
American Airlines
Mar 19
LHR6:00 pmLondon Heathrow
20h 05m
1 stop
EZE11:05 amBuenos Aires Ministro Pistarini
Mar 23
EZE11:00 pmBuenos Aires Ministro Pistarini
31h 40m
1 stop
LHR9:40 amLondon Heathrow

See travel insights to Buenos Aires from

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

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 Buenos Aires?

The cheapest month to fly to Buenos Aires from London Heathrow Airport is in May. Flight prices, which tend to average around $1,096, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Buenos Aires from London Heathrow Airport during March instead. Flights to Buenos Aires in March, while not as cheap as those in May, still average around $1,107.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from London Heathrow Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $1,177. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Wednesday is $1,412.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our most recent data shows that the best time of day to fly to Buenos Aires is in the afternoon. Flights from London Heathrow Airport to Buenos Aires during this time can be as low as $1,156. Try not to purchase tickets at noon because they tend to be around $1,377. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from London Heathrow Airport when booking 3 weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,254 when searching 3 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from London Heathrow Airport for as low as $1,148 on momondo.

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

There are 2 cabin classes available to choose from on London Heathrow to Buenos Aires flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of January 2025, prices for London Heathrow Airport to Buenos Aires flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Buenos Aires

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

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

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

Best Price Found

$533

Fastest flight time

16h 25m

Direct flights

Mon and Tue

Airports in Buenos Aires

2 airports
The best one-way flight to Buenos Aires from London Heathrow Airport in the past 72 hours is $533. The best round-trip flight deal from London Heathrow Airport to Buenos Aires found on momondo in the last 72 hours is $931.
The fastest flight from London Heathrow Airport to Buenos Aires takes 16h 25m
Direct flights go from London Heathrow Airport to Buenos Aires on Monday and Tuesday. The only airline offering direct flights is British Airways.
There are 2 airports near Buenos Aires: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP)

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

    The distance between London Heathrow and Buenos Aires is about 6898.3 mi. By plane, this route typically takes 16h 25m.

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

    Prices for flights from London Heathrow Airport to Buenos Aires are updated daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Buenos Aires.

  • What documentation or ID do you need to fly to Buenos Aires?

    The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Buenos Aires?

  • What is the most popular airline from London Heathrow Airport to Buenos Aires?


Best airlines flying from London Heathrow Airport to Buenos Aires

Compare and see reviews for airlines that fly from London Heathrow Airport to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $934Free CancellationRating
6.6
6,834 reviews
Search British Airways flights
  • British Airways Flights From London Heathrow Airport to Buenos Aires

    British Airways operates around 7 flights from London Heathrow Airport to Buenos Aires every week. The average price of these flights found in the last 72 hours has been $1,412, but momondo users have found British Airways deals from London Heathrow Airport to Buenos Aires from as low as $934 round-trip. British Airways has been scored 6.6/10 in 6,834 reviews.


Why use momondo?

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

Finding the right flight to Buenos Aires from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

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

Yes. All flights to Buenos Aires from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential London to Buenos Aires flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for London to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires