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Cheap flights from the United Kingdom to Buenos Aires from £353

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BUE
2 Jul — 9 Jul1
1 adult

Cheap 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 27 June 2025.

Round-trip from

£779

One-way from

£353

Popular in

December

Cheapest in

November

Average price

£850

Good round-trip deal

£935 or less

Good one-way deal

£753 or less
Iberia
  • Iberia
  • 20/8-21/10
  • 2 total stops
  • 51h 00m total
  • United Kingdom to Buenos Aires
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 38h 00m total
  • United Kingdom to Buenos Aires
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£31 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to Buenos Aires (BUE).
Search Deals
Price to beat on a one-way flight from United Kingdom to Buenos Aires (BUE).
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Find flight deals from United Kingdom to Buenos Aires

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 27 June 2025.

Sun 23/1118:30LHR - EZE
2 stops23h 55mMultiple Airlines
Fri 5/1217:00EZE - LHR
2 stops21h 30mMultiple Airlines
Deal found 24/6£776
Wed 20/811:35LGW - EZE
1 stop32h 45mIberia
Wed 22/1018:10EZE - LGW
1 stop21h 50mIberia
Deal found 24/6£779
Mon 18/822:05LHR - AEP
1 stop35h 35mAvianca
Wed 22/1007:00AEP - LHR
1 stop28h 35mAvianca
Deal found 24/6£779
Mon 8/911:20LHR - AEP
2 stops26h 00mMultiple Airlines
Sun 5/1009:00AEP - LHR
2 stops21h 20mMultiple Airlines
Deal found 23/6£780
Thu 4/1218:00LHR - EZE
2 stops24h 25mAir Canada
Tue 20/117:00EZE - LHR
3 stops35h 10mAir Canada
Deal found 25/6£780
Wed 8/1010:35LGW - AEP
2 stops26h 45mMultiple Airlines
Thu 16/1009:00AEP - LGW
2 stops31h 25mMultiple Airlines
Deal found 24/6£781
Wed 8/1022:05LHR - EZE
1 stop21h 15mAvianca
Thu 16/1016:45EZE - LHR
1 stop18h 50mAvianca
Deal found 24/6£786
Sun 24/819:45LHR - EZE
1 stop30h 00mAir France
Sat 11/1023:55EZE - LHR
1 stop17h 30mAir France
Deal found 26/6£790
Tue 2/1213:25LHR - AEP
2 stops30h 45mAir Canada
Wed 25/313:35AEP - LHR
2 stops38h 35mAir Canada
Deal found 25/6£793
Wed 19/1118:40LGW - AEP
2 stops20h 00mSWISS
Mon 1/1214:55AEP - LGW
2 stops23h 55mSWISS
Deal found 24/6£796
Thu 17/710:00LGW - EZE
1 stop25h 35mAir Europa
Wed 30/712:15EZE - LGW
1 stop24h 10mAir Europa
Deal found 24/6£797
Wed 19/1108:55LHR - AEP
2 stops29h 45mSWISS
Thu 4/1214:55AEP - LHR
2 stops22h 25mSWISS
Deal found 24/6£799

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 27 June 2025.
Use the filters below to find and compare flights from the United Kingdom to Buenos Aires that are best for you.

Fly from

United Kingdom

Fly to

Buenos Aires

Route

Depart

Return

Price

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Wed 20/8

11:35-16:20

1 stop32h 45m

Buenos Aires Ministro Pistarini

Wed 22/10

18:10-20:00

1 stop21h 50m

£779

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 18/8

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Wed 22/10

07:00-15:35

1 stop28h 35m

£779

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 8/9

11:20-09:20

2 stops26h 00m

Buenos Aires Jorge Newbery

Sun 5/10

09:00-10:20

2 stops21h 20m

£780

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Fri 12/9

09:00-01:25

2 stops20h 25m

Buenos Aires Ministro Pistarini

Wed 22/10

14:25-19:25

1 stop25h 00m

£783

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 24/9

22:05-00:10

1 stop30h 05m

Buenos Aires Ministro Pistarini

Thu 23/10

16:45-15:35

1 stop18h 50m

£788

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 24/8

19:45-21:45

1 stop30h 00m

Buenos Aires Ministro Pistarini

Sat 11/10

23:55-21:25

1 stop17h 30m

£790

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Thu 17/7

10:00-07:35

1 stop25h 35m

Buenos Aires Ministro Pistarini

Wed 30/7

12:15-16:25

1 stop24h 10m

£797

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 24/8

08:30-14:30

2 stops34h 00m

Buenos Aires Ministro Pistarini

Mon 22/9

16:35-10:00

2 stops37h 25m

£798

LondonBuenos Aires

LGW - AEP

LGWAEP

London Gatwick

Mon 8/9

10:35-06:40

2 stops24h 05m

Buenos Aires Jorge Newbery

Wed 24/9

06:20-09:45

2 stops23h 25m

£812

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 8/9

21:20-10:30

1 stop17h 10m

Buenos Aires Jorge Newbery

Sun 5/10

12:55-15:05

1 stop22h 10m

£813

Flights are sorted by cheapest return flights first.

Deals found on 26/6

Showing 1-10 of 60 results
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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 £1,012). Flying from United Kingdom to Buenos Aires in December is currently the most expensive (average of £1,250). 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 27 June 2025.

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.

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 27 June 2025.
Check out reviews from past customers who have flown with Emirates, Aerolineas Argentinas, andDelta 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.
Emirates
8.1
Very Good
3,274 reviews
Check prices

Food

7.8

Entertainment

8.2

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Emirates
8.1
Very Good
3,274 reviews
Emirates
8.1
Very Good
3,274 reviews
Check prices

Food

7.8

Entertainment

8.2

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Aerolineas Argentinas
8.1
Very Good
886 reviews
Emirates
8.1
Very Good
3,274 reviews
Check prices

Food

7.8

Entertainment

8.2

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Delta
8.0
Very Good
7,963 reviews
Emirates
8.1
Very Good
3,274 reviews
Check prices

Food

7.8

Entertainment

8.2

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
KLM
7.8
Good
1,365 reviews
Emirates
8.1
Very Good
3,274 reviews
Check prices

Food

7.8

Entertainment

8.2

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Finnair
7.6
Good
1,298 reviews
Emirates
8.1
Very Good
3,274 reviews
Check prices

Food

7.8

Entertainment

8.2

Overall

8.1

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

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.

  • 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 £541 on Aeromexico. Other airlines that offer cheap prices include United Airlines from £557 and LATAM Airlines from £584 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 City - 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 £748. While the most popular route (London Heathrow - Buenos Aires Ministro Pistarini) can be booked for £710 on average our data indicates £937 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 £1,012). Flying from United Kingdom to Buenos Aires in December is currently the most expensive (average of £1,250). 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.

Alternative routes for United Kingdom to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Ministro Pistarini flights
Heathrow to Jorge Newbery flights
London City to Ministro Pistarini flights
Gatwick to Ministro Pistarini flights
London City to Jorge Newbery flights
Luton to Ministro Pistarini flights
Manchester to Ministro Pistarini flights
Manchester to Jorge Newbery flights
Birmingham to Ministro Pistarini flights
Madrid to Ministro Pistarini flights
Edinburgh to Ministro Pistarini flights
Glasgow Intl to Ministro Pistarini flights
Heathrow to Cordoba flights
Gatwick to Cordoba flights
Gatwick to Ushuaia flights
Heathrow to Ushuaia flights
Newcastle upon Tyne to Ministro Pistarini flights
Heathrow to Mendoza flights
London City to Cordoba flights
Gatwick to San Carlos de Bariloche flights
Heathrow to San Carlos de Bariloche flights
London City to Mendoza flights
Bristol to Ministro Pistarini flights
Leeds to Ministro Pistarini flights
Stansted to Mendoza flights
Charles de Gaulle to Ministro Pistarini flights

Top 10 airlines flying from United Kingdom to Buenos Aires

Discover the top 10 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 27 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£436Average£960FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air EuropaCheapest£570Average£832FlexibilityNo cancel feeOn-time83%
Search Air Europa flights
Air CanadaCheapest£630Average£671FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Turkish AirlinesCheapest£633Average£680FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
LufthansaCheapest£678Average£1,101FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£679Average£924FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£697Average£941FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£720Average£854FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£769Average£1,268FlexibilityNo cancel feeOn-time75%
Search KLM flights
LATAM AirlinesCheapest£847Average£1,078FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

Fly with Cheapflights

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

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

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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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