Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London to Buenos Aires from €523

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 to Buenos Aires departing on 22/1. 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
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise 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 to Buenos Aires

Cheap return flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
17:45 - 22:25
LHR
-
EZE
31h 40m2 stops
Turkish Airlines Logo
23:55 - 21:05
EZE
-
LHR
42h 10m2 stops
€952Turkish Airlines
Wed, 21 Jan - Sun, 15 Feb
ITA Airways Logo
07:25 - 19:50
LCY
-
EZE
39h 25m2 stops
ITA Airways Logo
13:50 - 10:55
EZE
-
LCY
18h 05m1 stop
€954ITA Airways
Mon, 2 Mar - Thu, 12 Mar
United Airlines Logo
12:05 - 09:20
LHR
-
EZE
24h 15m1 stop
United Airlines Logo
22:05 - 07:30
EZE
-
LHR
30h 25m1 stop
€954United Airlines
Wed, 28 Jan - Wed, 4 Feb
United Airlines Logo
10:00 - 07:20
LHR
-
EZE
24h 20m1 stop
United Airlines Logo
23:55 - 10:15
EZE
-
LHR
31h 20m1 stop
€955United Airlines
Wed, 21 Jan - Sun, 15 Feb
United Airlines Logo
10:00 - 09:20
LHR
-
EZE
26h 20m1 stop
United Airlines Logo
22:05 - 07:30
EZE
-
LHR
30h 25m1 stop
€956United Airlines
Tue, 3 Feb - Sun, 15 Feb
Turkish Airlines Logo
10:15 - 22:25
LGW
-
EZE
39h 10m2 stops
Turkish Airlines Logo
23:55 - 16:10
EZE
-
LGW
37h 15m2 stops
€957Turkish Airlines
Sat, 7 Mar - Tue, 24 Mar
British Airways Logo
19:15 - 17:55
LCY
-
EZE
25h 40m1 stop
British Airways Logo
14:20 - 14:05
EZE
-
LCY
20h 45m1 stop
€997British Airways
Wed, 4 Mar - Tue, 17 Mar
British Airways Logo
19:15 - 17:55
LCY
-
EZE
25h 40m1 stop
British Airways Logo
14:20 - 08:50
EZE
-
LCY
15h 30m1 stop
€998British Airways
Mon, 23 Feb - Thu, 12 Mar
Avianca Logo
21:40 - 05:40
LHR
-
AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35
AEP
-
LHR
28h 35m1 stop
€1,048Avianca
Mon, 2 Mar - Tue, 17 Mar
Avianca Logo
21:40 - 05:40
LHR
-
AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35
AEP
-
LHR
28h 35m1 stop
€1,135Avianca
Tue, 24 Feb - Thu, 12 Mar

Turkish Airlines flights from London to Buenos Aires

Our best Turkish Airlines deals on London to Buenos Aires flight tickets
Turkish Airlines
21 Jan
LHR17:45London Heathrow
31h 40m
2 stops
EZE22:25Buenos Aires Ministro Pistarini
15 Feb
EZE23:55Buenos Aires Ministro Pistarini
42h 10m
2 stops
LHR21:05London Heathrow
€952
Find similar
Turkish Airlines
7 Mar
LGW10:15London Gatwick
39h 10m
2 stops
EZE22:25Buenos Aires Ministro Pistarini
24 Mar
EZE23:55Buenos Aires Ministro Pistarini
37h 15m
2 stops
LGW16:10London Gatwick
€957
Find similar
Turkish Airlines
2 Mar
LGW17:05London Gatwick
32h 20m
2 stops
EZE22:25Buenos Aires Ministro Pistarini
11 Mar
EZE23:55Buenos Aires Ministro Pistarini
30h 25m
2 stops
LGW09:20London Gatwick
€961
Find similar

ITA Airways flights from London to Buenos Aires

Our best ITA Airways deals on London to Buenos Aires flight tickets
ITA Airways
2 Mar
LCY07:25London City
39h 25m
2 stops
EZE19:50Buenos Aires Ministro Pistarini
13 Mar
EZE13:50Buenos Aires Ministro Pistarini
18h 05m
1 stop
LCY10:55London City
€954
Find similar
ITA Airways
2 Mar
LCY11:30London City
35h 20m
2 stops
EZE19:50Buenos Aires Ministro Pistarini
13 Mar
EZE13:50Buenos Aires Ministro Pistarini
19h 00m
2 stops
LCY11:50London City
€968
Find similar
ITA Airways
19 Mar
LCY16:45London City
30h 05m
1 stop
EZE19:50Buenos Aires Ministro Pistarini
5 Apr
EZE12:55Buenos Aires Ministro Pistarini
28h 10m
2 stops
LCY21:05London City
€1,015
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London 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 13,528 searches. Data last updated 14 December 2025.
Use the filters below to find and compare flights from London to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 21/1

17:45-22:25

2 stops31h 40m

Buenos Aires Ministro Pistarini

Sun 15/2

23:55-21:05

2 stops42h 10m

€952

LondonBuenos Aires

LCY - EZE

LCYEZE

London City

Mon 2/3

07:25-19:50

2 stops39h 25m

Buenos Aires Ministro Pistarini

Thu 12/3

13:50-10:55

1 stop18h 05m

€954

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 28/1

12:05-09:20

1 stop24h 15m

Buenos Aires Ministro Pistarini

Wed 4/2

22:05-07:30

1 stop30h 25m

€954

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 21/1

10:00-07:20

1 stop24h 20m

Buenos Aires Ministro Pistarini

Sun 15/2

23:55-10:15

1 stop31h 20m

€955

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Tue 3/2

10:00-09:20

1 stop26h 20m

Buenos Aires Ministro Pistarini

Sun 15/2

22:05-07:30

1 stop30h 25m

€956

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Sat 7/3

10:15-22:25

2 stops39h 10m

Buenos Aires Ministro Pistarini

Tue 24/3

23:55-16:10

2 stops37h 15m

€957

LondonBuenos Aires

LCY - EZE

LCYEZE

London City

Wed 4/3

19:15-17:55

1 stop25h 40m

Buenos Aires Ministro Pistarini

Tue 17/3

14:20-14:05

1 stop20h 45m

€997

LondonBuenos Aires

LCY - EZE

LCYEZE

London City

Mon 23/2

19:15-17:55

1 stop25h 40m

Buenos Aires Ministro Pistarini

Thu 12/3

14:20-08:50

1 stop15h 30m

€998

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 2/3

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Tue 17/3

07:00-14:35

1 stop28h 35m

€1,048

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Tue 24/2

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Thu 12/3

07:00-14:35

1 stop28h 35m

€1,135

Flights are sorted by cheapest return 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 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?

In general, September is the cheapest month to fly from London to Buenos Aires. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €980. If you aren’t able to travel to Buenos Aires during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of €1,008.

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

According to our data, Monday is the cheapest day to fly to Buenos Aires from London. The lowest ticket price found for a Monday departure recently was €764. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Buenos Aires is Thursday, with ticket prices averaging around €1,738.

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

Our data shows that the cheapest London to Buenos Aires flights are usually those with departure times in the afternoon. Our users have found flights to Buenos Aires in the afternoon for as low as €756. In contrast, the most expensive time of day to depart to Buenos Aires is in the evening when prices are around €1,050.

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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around €1,173 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from London for as low as €985 on momondo.

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

As of December 2025, prices for London to Buenos Aires flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from London to Buenos Aires

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

Cheap London to Buenos Aires (LON to BUE) flight deals and tips

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

Fastest flight time

16h 45m

Direct flights

Sun

Airports in Buenos Aires

2 airports
The fastest flight from London to Buenos Aires takes 16h 45m
Direct flights go from London to Buenos Aires on Sunday. There are no airlines offering direct flights..
There are 2 airports in Buenos Aires. From London there are direct flights to Buenos Aires Ministro Pistarini (EZE).
Search flight deals

  • How far is London to Buenos Aires by plane?

    London and Buenos Aires are 11120.2 km apart from one another. By plane, this route typically takes 16h 45m.

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

    Prices for flights from London to Buenos Aires were last updated today.

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

    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 London to Buenos Aires.

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

    The necessary travel and health documents for your Buenos Aires 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 licence 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 London 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?

momondo provides multiple filters to help you find the best flight to Buenos Aires from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Buenos Aires from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organise 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
Tue 13/1
Tue 20/1
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 27.4 km from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport