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Cheap flights from the United Kingdom to Buenos Aires from £458

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 19/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BUE
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 11 November 2025.

Wed 3/1218:30LHR - EZE
1 stop16h 25mLufthansa
Thu 11/1217:45EZE - LHR
1 stop18h 00mLufthansa
Deal found 9/11£819
Wed 3/1208:00LHR - EZE
2 stops26h 20mLufthansa
Mon 8/1222:05EZE - LHR
2 stops29h 15mLufthansa
Deal found 9/11£820
Wed 3/1209:50LGW - EZE
2 stops25h 55mMultiple Airlines
Thu 11/1213:50EZE - LGW
2 stops29h 10mMultiple Airlines
Deal found 9/11£823
Thu 4/1219:05LCY - EZE
2 stops27h 45mITA Airways
Thu 11/1213:50EZE - LCY
1 stop18h 05mITA Airways
Deal found 9/11£823
Wed 3/1208:25LCY - EZE
1 stop27h 20mITA Airways
Thu 11/1213:50EZE - LCY
1 stop23h 20mITA Airways
Deal found 9/11£823
Mon 1/1218:50MAN - EZE
1 stop19h 55mMultiple Airlines
Thu 11/1222:45EZE - MAN
1 stop15h 55mMultiple Airlines
Deal found 9/11£824
Mon 17/1110:00LHR - EZE
1 stop24h 20mUnited Airlines
Fri 28/1123:55EZE - LHR
1 stop28h 35mUnited Airlines
Deal found 9/11£840
Fri 21/1111:20LGW - EZE
2 stops48h 40mAmerican Airlines
Tue 25/1121:40EZE - LGW
2 stops56h 20mAmerican Airlines
Deal found 9/11£841
Tue 18/1119:10LCY - EZE
2 stops19h 40mSWISS
Wed 26/1114:40EZE - LCY
2 stops19h 15mSWISS
Deal found 9/11£851
Wed 19/1117:25MAN - EZE
2 stops21h 20mBritish Airways
Fri 5/1213:35EZE - MAN
2 stops21h 45mBritish Airways
Deal found 10/11£854
Mon 17/1121:40LHR - EZE
1 stop29h 55mAvianca
Mon 15/1207:30EZE - LHR
1 stop28h 05mAvianca
Deal found 10/11£855
Sun 7/1208:30LHR - EZE
1 stop26h 25mLufthansa
Sun 14/1217:45EZE - LHR
1 stop16h 05mLufthansa
Deal found 9/11£856

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 11 November 2025.

Round-trip from

£677

One-way from

£458

Popular in

December

Cheapest in

September

Average price

£907

Good round-trip deal

£1,105 or less

Good one-way deal

£796 or less
Lufthansa
  • Lufthansa
  • 4/5-17/6
  • 2 total stops
  • 43h 55m total
  • United Kingdom to Buenos Aires
Search Deals
19/2
  • 19/2
  • 2 total stops
  • 35h 35m total
  • United Kingdom to Buenos Aires
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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).
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 11 November 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

ManchesterBuenos Aires

MAN - AEP

MANAEP

Manchester

Mon 4/5

13:40-09:40

2 stops24h 00m

Buenos Aires Jorge Newbery

Tue 16/6

03:40-10:25

2 stops26h 45m

£781

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Wed 4/3

11:10-17:20

2 stops33h 10m

Buenos Aires Jorge Newbery

Wed 18/3

13:40-06:30

2 stops37h 50m

£829

LondonBuenos Aires

LGW - AEP

LGWAEP

London Gatwick

Thu 5/3

07:00-05:40

2 stops25h 40m

Buenos Aires Jorge Newbery

Mon 9/3

07:00-13:50

2 stops27h 50m

£832

ManchesterBuenos Aires

MAN - EZE

MANEZE

Manchester

Tue 20/1

10:50-22:25

2 stops38h 35m

Buenos Aires Ministro Pistarini

Tue 10/2

23:55-15:50

2 stops36h 55m

£835

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Sun 8/2

10:00-09:20

1 stop26h 20m

Buenos Aires Ministro Pistarini

Thu 19/2

22:05-09:40

2 stops32h 35m

£840

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Fri 21/11

11:20-09:00

2 stops48h 40m

Buenos Aires Ministro Pistarini

Tue 25/11

21:40-09:00

2 stops56h 20m

£841

LondonBuenos Aires

LGW - EZE

LGWEZE

London Gatwick

Tue 3/3

10:15-22:25

2 stops39h 10m

Buenos Aires Ministro Pistarini

Sun 5/4

23:55-22:25

2 stops42h 30m

£842

ManchesterBuenos Aires

MAN - EZE

MANEZE

Manchester

Sat 9/5

11:10-06:25

1 stop23h 15m

Buenos Aires Ministro Pistarini

Sat 23/5

13:30-17:55

2 stops24h 25m

£849

ManchesterBuenos Aires

MAN - AEP

MANAEP

Manchester

Thu 22/1

18:20-14:40

2 stops23h 20m

Buenos Aires Jorge Newbery

Wed 4/3

18:20-17:40

2 stops20h 20m

£854

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Fri 13/3

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Fri 20/3

07:00-14:35

1 stop28h 35m

£859

Flights are sorted by cheapest return flights first.

Deals found on 10/11

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, December is the cheapest month in which you can book a flight from United Kingdom to Buenos Aires (average of £563). Flying from United Kingdom to Buenos Aires in April is currently the most expensive (average of £829). 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 11 November 2025.

It’s optimal to fly from United Kingdom to Buenos Aires in the evening. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from United Kingdom to Buenos Aires?

Use this chart to determine the cheapest time to fly return from United Kingdom to Buenos Aires. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their United Kingdom to Buenos Aires flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 11 November 2025.

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).

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 11 November 2025.
Check out reviews from past customers who have flown with LATAM Airlines, Air Europa, andIberia 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
7.5
Good
1,871 reviews
Check prices

Overall

7.5

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

7.0

Food

6.7

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
7.5
Good
1,871 reviews
LATAM Airlines
7.5
Good
1,871 reviews
Check prices

Overall

7.5

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

7.0

Food

6.7

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!
Air Europa
7.0
Good
569 reviews
LATAM Airlines
7.5
Good
1,871 reviews
Check prices

Overall

7.5

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

7.0

Food

6.7

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
3,008 reviews
LATAM Airlines
7.5
Good
1,871 reviews
Check prices

Overall

7.5

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

7.0

Food

6.7

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
7,564 reviews
LATAM Airlines
7.5
Good
1,871 reviews
Check prices

Overall

7.5

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

7.0

Food

6.7

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
7,509 reviews
LATAM Airlines
7.5
Good
1,871 reviews
Check prices

Overall

7.5

Boarding

7.6

Crew

8.0

Comfort

7.3

Entertainment

7.0

Food

6.7

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 Air Canada, Turkish Airlines, and United Airlines fly from United Kingdom to Buenos Aires in about 26h 20m. The time it takes to get you to your destination can typically vary by up to 12h 15m. United Kingdom and Buenos Aires are separated by a distance of 6915 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 £460 on United Airlines. Other airlines that offer cheap prices include LEVEL from £494 and Aerolineas Argentinas from £576 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 £747. While the most popular route (London Heathrow - Buenos Aires Ministro Pistarini) can be booked for £756 on average, our data indicates £1,022 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, December is the cheapest month in which you can book a flight from United Kingdom to Buenos Aires (average of £563). Flying from United Kingdom to Buenos Aires in April is currently the most expensive (average of £829). 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

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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
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Manchester to Ministro Pistarini flights
London City to Jorge Newbery flights
Manchester to Jorge Newbery flights
Madrid to Ministro Pistarini flights
Edinburgh to Ministro Pistarini flights
Heathrow to Mendoza flights
Heathrow to Cordoba flights
Barcelona-El Prat to Ministro Pistarini flights
Budapest to Ministro Pistarini flights
Glasgow Intl to Ministro Pistarini flights
Heathrow to Ushuaia flights
Birmingham to Ministro Pistarini flights
Gatwick to Ushuaia flights
Gatwick to Cordoba flights
Amsterdam to Ministro Pistarini flights
Leeds to Ministro Pistarini flights
London City to Mendoza flights
London City to Cordoba flights
Newcastle upon Tyne to Ministro Pistarini flights
Bristol to Ministro Pistarini flights
Manchester to Mendoza flights
Aberdeen to Ministro Pistarini flights
Stansted to Mendoza flights
Charles de Gaulle to Ministro Pistarini flights
Inverness 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 11 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£455Average£1,182FlexibilityNo cancel feeOn-time77%
Search Air France flights
LufthansaCheapest£520Average£1,201FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£706Average£1,036FlexibilityNo cancel feeOn-time77%
Search Iberia flights
AviancaCheapest£714Average£813FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Air EuropaCheapest£724Average£1,187FlexibilityNo cancel feeOn-time83%
Search Air Europa flights
FinnairCheapest£751Average£1,102FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£815Average£988FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LATAM AirlinesCheapest£889Average£1,050FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights
American AirlinesCheapest£893Average£1,000FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest£980Average£1,368FlexibilityNo 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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