Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Buenos Aires from $564

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 5/19. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from London Heathrow Airport to Buenos Aires

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from London Heathrow Airport to Buenos Aires.
Lufthansa Logo
9:30 am - 6:25 amLHR-EZE
24h 55m1 stop
Lufthansa Logo
4:40 pm - 4:40 pmEZE-LHR
20h 00m1 stop
$1,082Lufthansa
Find Deal
Sun, Aug 24 - Mon, Sep 29
 Logo
1:30 pm - 6:25 amLHR-EZE
20h 55m1 stop
 Logo
1:30 pm - 5:50 pmEZE-LHR
24h 20m2 stops
$1,096
Find Deal
Thu, May 8 - Wed, Jun 11
LATAM Airlines Logo
9:20 pm - 10:30 amLHR-AEP
17h 10m1 stop
LATAM Airlines Logo
6:20 pm - 3:05 pmAEP-LHR
16h 45m1 stop
$1,147LATAM Airlines
Find Deal
Wed, Jun 4 - Mon, Jun 16
British Airways Logo
8:00 pm - 8:05 pmLHR-EZE
28h 05m1 stop
British Airways Logo
1:00 pm - 9:55 pmEZE-LHR
28h 55m1 stop
$1,171British Airways
Find Deal
Tue, May 6 - Wed, Jun 25
British Airways Logo
10:00 pm - 10:35 amLHR-EZE
16h 35m1 stop
British Airways Logo
1:00 pm - 9:55 pmEZE-LHR
28h 55m1 stop
$1,180British Airways
Find Deal
Mon, May 5 - Wed, Jun 25
LATAM Airlines Logo
9:20 pm - 7:40 pmLHR-AEP
26h 20m2 stops
LATAM Airlines Logo
6:20 pm - 3:05 pmAEP-LHR
16h 45m1 stop
$1,188LATAM Airlines
Find Deal
Wed, Jun 4 - Mon, Jun 16
Avianca Logo
10:05 pm - 3:20 pmLHR-EZE
21h 15m1 stop
Avianca Logo
4:45 pm - 3:35 pmEZE-LHR
18h 50m1 stop
$1,206Avianca
Find Deal
Mon, May 5 - Tue, May 20
Delta Logo
11:45 am - 9:45 amLHR-EZE
26h 00m2 stops
Delta Logo
8:10 pm - 6:45 amEZE-LHR
30h 35m2 stops
$1,223Delta
Find Deal
Thu, Sep 11 - Tue, Sep 23
Delta Logo
9:40 am - 9:45 amLHR-EZE
28h 05m2 stops
Delta Logo
8:10 pm - 6:45 amEZE-LHR
30h 35m2 stops
$1,229Delta
Find Deal
Thu, Aug 21 - Tue, Sep 2
Avianca Logo
10:05 pm - 3:20 pmLHR-EZE
21h 15m1 stop
Avianca Logo
6:50 am - 3:35 pmEZE-LHR
28h 45m1 stop
$1,329Avianca
Find Deal
Mon, May 5 - Tue, May 20

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
Jul 24
LHR4:20 pmLondon Heathrow
21h 55m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Aug 4
EZE10:00 pmBuenos Aires Ministro Pistarini
28h 55m
1 stop
LHR6:55 amLondon Heathrow
American Airlines
Jul 24
LHR4:20 pmLondon Heathrow
21h 55m
1 stop
EZE10:15 amBuenos Aires Ministro Pistarini
Aug 4
EZE10:00 pmBuenos Aires Ministro Pistarini
28h 55m
1 stop
LHR6:55 amLondon Heathrow

Avianca flights from London Heathrow Airport to Buenos Aires

Our best Avianca deals on London Heathrow Airport to Buenos Aires flight tickets
Avianca
May 5
LHR10:05 pmLondon Heathrow
21h 15m
1 stop
EZE3:20 pmBuenos Aires Ministro Pistarini
May 20
EZE4:45 pmBuenos Aires Ministro Pistarini
18h 50m
1 stop
LHR3:35 pmLondon Heathrow
Avianca
May 5
LHR10:05 pmLondon Heathrow
21h 15m
1 stop
EZE3:20 pmBuenos Aires Ministro Pistarini
May 20
EZE6:50 amBuenos Aires Ministro Pistarini
28h 45m
1 stop
LHR3:35 pmLondon Heathrow
Avianca
Jun 10
LHR10:05 pmLondon Heathrow
30h 05m
1 stop
EZE12:10 amBuenos Aires Ministro Pistarini
Jun 19
EZE4:45 pmBuenos Aires Ministro Pistarini
18h 50m
1 stop
LHR3:35 pmLondon 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 typical price of a round-trip flight between London Heathrow Airport and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from London Heathrow Airport is in January. Flight prices, which tend to average around $1,120, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Buenos Aires from London Heathrow Airport during February instead. Flights to Buenos Aires in February, while not as cheap as those in January, still average around $1,135.

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 Thursday. momondo users have found tickets for Thursday departures for as low as $1,211. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Thursday is $1,211.

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 21 weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,297 when searching 21 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 $1,112 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 April 2025, prices for London Heathrow Airport to Buenos Aires flights are approximately 11% cheaper 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

$564

Fastest flight time

16h 35m

Direct flights

None

Airports in Buenos Aires

2 airports
The best one-way flight to Buenos Aires from London Heathrow Airport in the past 72 hours is $564. The best round-trip flight deal from London Heathrow Airport to Buenos Aires found on momondo in the last 72 hours is $1,082.
The fastest flight from London Heathrow Airport to Buenos Aires takes 16h 35m
There are no direct flights from London Heathrow Airport to Buenos Aires. Popular non-direct routes for this connection are London Heathrow Airport - Buenos Aires Jorge Newbery Airport and London Heathrow Airport - Buenos Aires Ministro Pistarini Airport.
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 35m.

  • 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?


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
IberiaPriceFrom $1,021Free CancellationRating
7.0
2,686 reviews
Search Iberia flights
  • Iberia Flights From London Heathrow Airport to Buenos Aires

    Iberia operates around 6 flights from London Heathrow Airport to Buenos Aires every week. The average price of these flights found in the last 72 hours has been $1,301, but momondo users have found Iberia deals from London Heathrow Airport to Buenos Aires from as low as $1,021 round-trip. Iberia has been scored 7.0/10 in 2,686 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.


An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Wed 4/30
Wed 5/7

Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

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