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Cheap flights from the United Kingdom to Buenos Aires from £366

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BUE
1 Sep — 8 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Buenos Aires

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Buenos Aires
Explore the most affordable flight options available from United Kingdom to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 August 2026.

Wed 18/1112:15
MAN
-
EZE
2 stops23h 30m
Lufthansa
Sun 13/1222:20
EZE
-
MAN
2 stops21h 30m
Lufthansa
Deal found 28/7£755
Sat 21/1117:00
MAN
-
EZE
2 stops29h 55m
Lufthansa
Sat 12/1213:50
EZE
-
MAN
2 stops29h 55m
Lufthansa
Deal found 28/7£762
Thu 19/1112:15
MAN
-
EZE
2 stops23h 30m
Lufthansa
Sun 13/1222:20
EZE
-
MAN
2 stops21h 30m
Lufthansa
Deal found 28/7£778
Wed 18/1112:15
MAN
-
EZE
2 stops23h 30m
Lufthansa
Mon 14/1213:50
EZE
-
MAN
2 stops23h 25m
Lufthansa
Deal found 28/7£814
Wed 18/1112:15
MAN
-
EZE
2 stops23h 30m
Lufthansa
Sat 12/1213:50
EZE
-
MAN
2 stops24h 10m
Lufthansa
Deal found 28/7£820
Mon 14/910:35
MAN
-
EZE
2 stops24h 55m
Lufthansa
Tue 29/912:55
EZE
-
MAN
2 stops29h 55m
Lufthansa
Deal found 30/7£822
Thu 19/1112:15
MAN
-
EZE
2 stops23h 30m
Lufthansa
Mon 14/1213:50
EZE
-
MAN
2 stops23h 25m
Lufthansa
Deal found 28/7£839
Thu 19/1112:15
MAN
-
EZE
2 stops23h 30m
Lufthansa
Sat 12/1213:50
EZE
-
MAN
2 stops24h 10m
Lufthansa
Deal found 28/7£844
Thu 3/914:00
MAN
-
EZE
2 stops24h 45m
British Airways
Thu 17/912:25
EZE
-
MAN
2 stops26h 50m
British Airways
Deal found 1/8£851
Wed 2/1207:00
MAN
-
EZE
2 stops28h 45m
Lufthansa
Wed 16/1213:50
EZE
-
MAN
2 stops23h 25m
Lufthansa
Deal found 2/8£853
Tue 15/918:10
LGW
-
EZE
1 stop16h 35m
Multiple Airlines
Tue 29/913:25
EZE
-
LGW
2 stops22h 10m
Multiple Airlines
Deal found 2/8£853
Mon 9/1121:40
LHR
-
EZE
1 stop21h 10m
Multiple Airlines
Mon 30/1107:30
EZE
-
LHR
2 stops21h 55m
Multiple Airlines
Deal found 28/7£853

Find flight deals from United Kingdom to Buenos Aires

Keep the following information in mind while searching for United Kingdom to Buenos Aires flight deals. Data was last updated 2 August 2026.

Round-trip from

£755

One-way from

£366

Popular in

December

Cheapest in

September

Average price

£1,033

Good round-trip deal

£1,000 or less
Lufthansa
  • Lufthansa
  • 18/11-13/12
  • 4 total stops
  • 45h 00m total
  • United Kingdom to Buenos Aires
Search Deals
13/9
  • 13/9
  • 3 total stops
  • 57h 35m total
  • United Kingdom to Buenos Aires
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from United Kingdom to Buenos Aires (BUE).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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, Cheapflights users made 858,174 searches. Data last updated 2 August 2026.
Use the filters below to find and compare flights from the United Kingdom to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBuenos Aires

LTN - EZE

LTNEZE

London Luton

Mon 21/9

20:35-01:05

3 stops32h 30m

Buenos Aires Ministro Pistarini

Tue 6/10

16:45-19:55

3 stops23h 10m

£867

LondonBuenos Aires

LGW - AEP

LGWAEP

London Gatwick

Mon 16/11

11:00-09:20

2 stops25h 20m

Buenos Aires Jorge Newbery

Tue 8/12

09:00-09:50

2 stops21h 50m

£901

ManchesterBuenos Aires

MAN - EZE

MANEZE

Manchester

Wed 2/12

12:15-08:45

2 stops23h 30m

Buenos Aires Ministro Pistarini

Wed 16/12

17:45-17:00

1 stop20h 15m

£902

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Tue 10/11

16:35-01:55

2 stops36h 20m

Buenos Aires Ministro Pistarini

Wed 25/11

04:15-09:50

2 stops26h 35m

£905

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Fri 6/11

08:15-09:20

2 stops28h 05m

Buenos Aires Jorge Newbery

Thu 26/11

13:35-18:55

2 stops26h 20m

£906

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Tue 8/9

08:00-16:15

3 stops36h 15m

Buenos Aires Ministro Pistarini

Tue 22/9

13:15-22:55

2 stops29h 40m

£907

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 14/9

06:00-09:20

2 stops31h 20m

Buenos Aires Jorge Newbery

Sun 27/9

14:30-10:20

2 stops39h 50m

£913

LondonBuenos Aires

LCY - EZE

LCYEZE

London City

Mon 16/11

19:15-17:25

1 stop25h 10m

Buenos Aires Ministro Pistarini

Tue 8/12

14:20-08:50

1 stop15h 30m

£918

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 13/9

15:15-09:45

1 stop22h 30m

Buenos Aires Ministro Pistarini

Sun 20/9

20:10-07:10

2 stops31h 00m

£927

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 5/10

06:15-09:45

2 stops31h 30m

Buenos Aires Ministro Pistarini

Wed 14/10

20:10-10:20

2 stops34h 10m

£928

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from United Kingdom to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from United Kingdom with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Buenos Aires

What is the cheapest month to book a flight from United Kingdom to Buenos Aires?

Currently, May is the cheapest month in which you can book a flight from United Kingdom to Buenos Aires (average of £871). Flying from United Kingdom to Buenos Aires in December is currently the most expensive (average of £1,326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to BUE?

Find hourly flight availability from United Kingdom to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Buenos Aires as you normally would.

Weekly flight availability from United Kingdom to Buenos Aires

Explore weekly flight availability from United Kingdom to Buenos Aires. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 2 August 2026.

The most flights from GB0 to BUE are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How far ahead should I book a flight from United Kingdom to Buenos Aires?

The best time to book flights from United Kingdom to Buenos Aires is 12 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated 2 August 2026.
Check out reviews from past customers who have flown with LATAM Airlines,Iberia, andLufthansa from the United Kingdom to Buenos Aires to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Food

6.7

Entertainment

7.0

Crew

8.0

Overall

7.4

Boarding

7.5

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
LATAM Airlines
7.4
Good
1,968 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Food

6.7

Entertainment

7.0

Crew

8.0

Overall

7.4

Boarding

7.5

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
Iberia
7.0
Good
3,265 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Food

6.7

Entertainment

7.0

Crew

8.0

Overall

7.4

Boarding

7.5

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
Lufthansa
6.8
Okay
8,172 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Food

6.7

Entertainment

7.0

Crew

8.0

Overall

7.4

Boarding

7.5

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
British Airways
6.7
Okay
8,136 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Food

6.7

Entertainment

7.0

Crew

8.0

Overall

7.4

Boarding

7.5

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!
Avianca
6.5
Okay
2,523 reviews
LATAM Airlines
7.4
Good
1,968 reviews
Check prices

Food

6.7

Entertainment

7.0

Crew

8.0

Overall

7.4

Boarding

7.5

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from United Kingdom to Buenos Aires?

    Airlines like TAP AIR PORTUGAL, Lufthansa, and British Airways fly from United Kingdom to Buenos Aires in about 23h 30m. The time it takes to get you to your destination can typically vary by up to 1h 50m. United Kingdom and Buenos Aires are separated by a distance of 6954 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from United Kingdom to Buenos Aires one-way?

    One-way options have recently been found by users for as low as £376 on Avianca. Other airlines that offer cheap prices include KLM from £494 and LATAM Airlines from £547 one-way.

  • What are the most popular routes from United Kingdom to Buenos Aires?

    The most popular route from United Kingdom to Buenos Aires is London Heathrow - Buenos Aires Ministro Pistarini. You may also consider London Heathrow - Buenos Aires Jorge Newbery or London Gatwick - Buenos Aires Ministro Pistarini.

  • What are the cheapest flights from United Kingdom to Buenos Aires?

    Looking at all options, your cheapest flight can be booked for £866. While the most popular route (London Heathrow - Buenos Aires Ministro Pistarini) can be booked for £664 on average, our data indicates £1,115 when flying from United Kingdom to Buenos Aires.

  • Can I find deals for flights from United Kingdom to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Buenos Aires flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Buenos Aires.

  • Can I find deals for business class flights from United Kingdom to Buenos Aires?

    Yes. Cheapflights offers flight deals from United Kingdom to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Buenos Aires?

    Currently, May is the cheapest month in which you can book a flight from United Kingdom to Buenos Aires (average of £871). Flying from United Kingdom to Buenos Aires in December is currently the most expensive (average of £1,326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from United Kingdom to Buenos Aires

Discover the top 9 airlines that operate flights from United Kingdom to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£677Average£932FlexibilityNo cancel feeOn-time70%
Search British Airways flights
AviancaCheapest£689Average£783FlexibilityNo cancel feeOn-time71%
Search Avianca flights
IberiaCheapest£689Average£1,015FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Turkish AirlinesCheapest£747Average£775FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air FranceCheapest£786Average£1,137FlexibilityNo cancel feeOn-time77%
Search Air France flights
LufthansaCheapest£806Average£1,082FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
LATAM AirlinesCheapest£840Average£1,080FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
American AirlinesCheapest£864Average£880FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest£1,013Average£1,304FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Buenos Aires?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Buenos Aires from United Kingdom today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Buenos Aires?

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Buenos Aires by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from United Kingdom to Buenos Aires with no change fees?

Need flexible booking options for your flight to Buenos Aires from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to Buenos Aires become cheaper?

Yes! Start tracking prices for United Kingdom to Buenos Aires flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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