Latest deals
Insights
When to book
FAQs
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 6/2. 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

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.
Search flight deals

Find the cheapest flights from London Heathrow Airport to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
10:05 pm - 3:40 pm
LHR
-
EZE
21h 35m
1 stop
Avianca Logo
7:10 am - 3:35 pm
EZE
-
LHR
28h 25m
1 stop
$1,018Avianca
Sun, Jun 14 - Tue, Jun 23
Avianca Logo
10:05 pm - 3:40 pm
LHR
-
EZE
21h 35m
1 stop
Avianca Logo
1:35 am - 3:35 pm
EZE
-
LHR
34h 00m
1 stop
$1,068Avianca
Thu, Oct 8 - Tue, Oct 20
Lufthansa Logo
6:30 am - 6:25 am
LHR
-
EZE
27h 55m
1 stop
Lufthansa Logo
4:35 pm - 5:40 pm
EZE
-
LHR
21h 05m
1 stop
$1,091Lufthansa
Sun, Jun 14 - Mon, Jun 29
Lufthansa Logo
8:30 am - 6:25 am
LHR
-
EZE
25h 55m
1 stop
Lufthansa Logo
4:35 pm - 10:10 pm
EZE
-
LHR
25h 35m
1 stop
$1,097Lufthansa
Sun, Jun 14 - Mon, Jun 29
Avianca Logo
10:05 pm - 3:40 pm
LHR
-
EZE
21h 35m
1 stop
Avianca Logo
4:50 pm - 3:35 pm
EZE
-
LHR
18h 45m
1 stop
$1,118Avianca
Wed, May 27 - Wed, Jun 3
Turkish Airlines Logo
10:40 pm - 10:25 pm
LHR
-
EZE
27h 45m
2 stops
Turkish Airlines Logo
11:55 pm - 9:50 am
EZE
-
LHR
29h 55m
2 stops
$1,122Turkish Airlines
Mon, Jun 15 - Mon, Jun 22
Turkish Airlines Logo
4:45 pm - 10:25 pm
LHR
-
EZE
33h 40m
2 stops
Turkish Airlines Logo
11:55 pm - 3:10 pm
EZE
-
LHR
35h 15m
2 stops
$1,123Turkish Airlines
Tue, Jun 9 - Tue, Jun 16
SWISS Logo
8:55 am - 9:40 am
LHR
-
AEP
28h 45m
3 stops
SWISS Logo
12:55 pm - 9:30 pm
AEP
-
LHR
28h 35m
3 stops
$1,206SWISS
Sun, Sep 6 - Sun, Sep 27
SWISS Logo
8:55 am - 9:40 am
LHR
-
AEP
28h 45m
3 stops
SWISS Logo
12:55 pm - 1:00 pm
AEP
-
LHR
20h 05m
2 stops
$1,231SWISS
Sun, Sep 6 - Sun, Sep 27
LATAM Airlines Logo
9:20 pm - 10:30 am
LHR
-
AEP
17h 10m
1 stop
LATAM Airlines Logo
10:35 am - 3:05 pm
AEP
-
LHR
24h 30m
1 stop
$1,266LATAM Airlines
Tue, Jun 9 - Tue, Jun 16

Lufthansa flights from London Heathrow Airport to Buenos Aires

Our best Lufthansa deals on London Heathrow Airport to Buenos Aires flight tickets
Lufthansa
Jun 14
LHR6:30 amLondon Heathrow
27h 55m
1 stop
EZE6:25 amBuenos Aires Ministro Pistarini
Jun 29
EZE4:35 pmBuenos Aires Ministro Pistarini
21h 05m
1 stop
LHR5:40 pmLondon Heathrow
$1,091
Lufthansa
Jun 14
LHR8:30 amLondon Heathrow
25h 55m
1 stop
EZE6:25 amBuenos Aires Ministro Pistarini
Jun 29
EZE4:35 pmBuenos Aires Ministro Pistarini
25h 35m
1 stop
LHR10:10 pmLondon Heathrow
$1,097
Lufthansa
Jun 14
LHR7:30 amLondon Heathrow
26h 55m
1 stop
EZE6:25 amBuenos Aires Ministro Pistarini
Jun 28
EZE4:35 pmBuenos Aires Ministro Pistarini
24h 05m
1 stop
LHR8:40 pmLondon Heathrow
$1,132

British Airways flights from London Heathrow Airport to Buenos Aires

Our best British Airways deals on London Heathrow Airport to Buenos Aires flight tickets
British Airways
May 20
LHR6:45 pmLondon Heathrow
25h 40m
1 stop
EZE4:25 pmBuenos Aires Ministro Pistarini
Jun 11
EZE12:25 pmBuenos Aires Ministro Pistarini
15h 45m
1 stop
LHR8:10 amLondon Heathrow
$1,206
British Airways
May 27
LHR9:45 pmLondon Heathrow
17h 00m
1 stop
EZE10:45 amBuenos Aires Ministro Pistarini
Jun 15
EZE12:25 pmBuenos Aires Ministro Pistarini
15h 45m
1 stop
LHR8:10 amLondon Heathrow
$1,228
British Airways
May 16
LHR9:45 pmLondon Heathrow
17h 00m
1 stop
EZE10:45 amBuenos Aires Ministro Pistarini
Jun 11
EZE12:25 pmBuenos Aires Ministro Pistarini
15h 45m
1 stop
LHR8:10 amLondon Heathrow
$1,233

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Buenos Aires 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 May 5, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 6/14

10:05 pm-3:40 pm

1 stop21h 35m

Buenos Aires Ministro Pistarini

Tue 6/23

7:10 am-3:35 pm

1 stop28h 25m

$1,018

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Thu 10/8

10:05 pm-3:40 pm

1 stop21h 35m

Buenos Aires Ministro Pistarini

Tue 10/20

1:35 am-3:35 pm

1 stop34h 00m

$1,068

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 6/14

6:30 am-6:25 am

1 stop27h 55m

Buenos Aires Ministro Pistarini

Mon 6/29

4:35 pm-5:40 pm

1 stop21h 05m

$1,091

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 6/14

8:30 am-6:25 am

1 stop25h 55m

Buenos Aires Ministro Pistarini

Mon 6/29

4:35 pm-10:10 pm

1 stop25h 35m

$1,097
Quickest round-trip

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 5/27

10:05 pm-3:40 pm

1 stop21h 35m

Buenos Aires Ministro Pistarini

Wed 6/3

4:50 pm-3:35 pm

1 stop18h 45m

$1,118

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 6/15

10:40 pm-10:25 pm

2 stops27h 45m

Buenos Aires Ministro Pistarini

Mon 6/22

11:55 pm-9:50 am

2 stops29h 55m

$1,122

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Tue 6/9

4:45 pm-10:25 pm

2 stops33h 40m

Buenos Aires Ministro Pistarini

Tue 6/16

11:55 pm-3:10 pm

2 stops35h 15m

$1,123

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sun 9/6

8:55 am-9:40 am

3 stops28h 45m

Buenos Aires Jorge Newbery

Sun 9/27

12:55 pm-9:30 pm

3 stops28h 35m

$1,206

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sun 9/6

8:55 am-9:40 am

3 stops28h 45m

Buenos Aires Jorge Newbery

Sun 9/27

12:55 pm-1:00 pm

2 stops20h 05m

$1,231

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Tue 6/9

9:20 pm-10:30 am

1 stop17h 10m

Buenos Aires Jorge Newbery

Tue 6/16

10:35 am-3:05 pm

1 stop24h 30m

$1,266

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 March. Flight prices, which tend to average around $231, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of March, then book flights to Buenos Aires from London Heathrow Airport during April instead. Flights to Buenos Aires in April, while not as cheap as those in March, still average around $525.

How far in advance should I book a flight from London Heathrow Airport to Buenos Aires?

You are more likely to see cheaper flights to Buenos Aires from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,369 when searching 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 $1,138 on momondo.

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

You could potentially save up to 49% on your flight if you consider stops on a London Heathrow Airport to Buenos Aires flight.

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

As of May 2026, prices for London Heathrow Airport to Buenos Aires flights are approximately 20% 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

Fastest flight time

16h 05m

Direct flights

Tue and Sun

Airports in Buenos Aires

2 airports
The fastest flight from London Heathrow Airport to Buenos Aires takes 16h 05m
Direct flights go from London Heathrow Airport to Buenos Aires on Tuesday and Sunday. There are no airlines offering direct flights.
There are 2 airports in Buenos Aires. From London Heathrow Airport there are direct flights to Buenos Aires Ministro Pistarini (EZE).
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Buenos Aires

  • 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 05m.

  • 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 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?

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 6/4
Thu 6/11
By creating a price alert you accept our terms of use and privacy policy.

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
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport