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Cheap flights from London Heathrow Airport to Buenos Aires from £515

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BUE
22 Jan — 29 Jan1
1 adult

The best prices from London Heathrow to Buenos Aires are usually found in April or May, booked 83 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Heathrow to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

£833

One-way from

£515

Popular in

December

Cheapest in

April

Average price

£918
Air Canada
  • Air Canada
  • 10/3-25/3
  • 2 total stops
  • 65h 45m total
  • London to Buenos Aires
18/6
  • 18/6
  • 2 total stops
  • 27h 35m total
  • London to Buenos Aires
High demand for flights, 8% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for round-trip flights in January 2025

Find flight deals from Heathrow to Buenos Aires

Cheapest flights from Heathrow to Buenos Aires
Explore the most affordable flight options available from Heathrow to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Thu 16/1011:20LHR - EZE
2 stops39h 05mTurkish Airlines
Sun 26/1023:55EZE - LHR
1 stop31h 00mTurkish Airlines
Deal found 16/1£819
Fri 10/1015:50LHR - EZE
2 stops26h 40mAir Canada
Sat 8/1117:00EZE - LHR
2 stops39h 50mAir Canada
Deal found 16/1£829
Sat 18/1020:00LHR - EZE
1 stop24h 20mIberia
Mon 20/1011:50EZE - LHR
1 stop17h 20mIberia
Deal found 16/1£834
Mon 20/106:20LHR - EZE
1 stop17h 05mMultiple Airlines
Tue 28/122:45EZE - LHR
2 stops19h 05mMultiple Airlines
Deal found 16/1£835
Wed 15/1015:50LHR - EZE
1 stop26h 40mLufthansa
Thu 23/1016:35EZE - LHR
1 stop34h 00mLufthansa
Deal found 16/1£838
Thu 8/506:15LHR - AEP
2 stops19h 15mMultiple Airlines
Tue 20/522:55AEP - LHR
2 stops37h 40mMultiple Airlines
Deal found 16/1£839
Mon 6/1019:10LHR - EZE
1 stop25h 10mBritish Airways
Thu 13/1113:35EZE - LHR
1 stop16h 00mBritish Airways
Deal found 16/1£857
Wed 5/215:00LHR - AEP
2 stops29h 20mAir Canada
Tue 11/213:35AEP - LHR
2 stops37h 55mAir Canada
Deal found 16/1£862
Mon 20/106:20LHR - EZE
1 stop17h 05mAir France
Mon 27/122:45EZE - LHR
1 stop16h 35mAir France
Deal found 16/1£865
Thu 23/118:00LHR - EZE
1 stop20h 05mAmerican Airlines
Sun 9/222:30EZE - LHR
1 stop28h 50mAmerican Airlines
Deal found 16/1£877
Mon 3/220:15LHR - AEP
1 stop16h 25mLATAM Airlines
Sun 9/218:20AEP - LHR
1 stop16h 45mLATAM Airlines
Deal found 16/1£883
Wed 7/522:05LHR - EZE
1 stop30h 05mAvianca
Tue 20/501:40EZE - LHR
1 stop33h 55mAvianca
Deal found 17/1£895

Find flights from Heathrow to Buenos Aires within your budget

Customise your flight search to find flights from Heathrow 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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 10/3

11:10-14:25

1 stop30h 15m

Buenos Aires Ministro Pistarini

Tue 25/3

16:00-06:30

1 stop35h 30m

£833

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 19/3

19:40-08:40

1 stop16h 00m

Buenos Aires Ministro Pistarini

Sun 23/3

22:45-14:00

1 stop36h 15m

£837

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Thu 8/5

06:15-21:30

2 stops19h 15m

Buenos Aires Jorge Newbery

Tue 20/5

22:55-16:35

2 stops37h 40m

£839

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Tue 20/5

09:00-21:55

1 stop16h 55m

Buenos Aires Ministro Pistarini

Tue 10/6

14:40-10:45

1 stop16h 05m

£841

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 7/5

12:05-14:30

1 stop30h 25m

Buenos Aires Ministro Pistarini

Wed 21/5

16:35-11:50

1 stop39h 15m

£856

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Wed 5/2

15:00-17:20

2 stops29h 20m

Buenos Aires Jorge Newbery

Tue 11/2

13:35-06:30

2 stops37h 55m

£862

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 21/5

21:55-10:35

Nonstop16h 40m

Buenos Aires Ministro Pistarini

Wed 11/6

12:15-07:55

Nonstop15h 40m

£868

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Mon 27/1

15:35-11:05

1 stop22h 30m

Buenos Aires Ministro Pistarini

Thu 27/2

22:30-06:20

1 stop28h 50m

£877

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 3/2

20:15-09:40

1 stop16h 25m

Buenos Aires Jorge Newbery

Sun 9/2

18:20-14:05

1 stop16h 45m

£883

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 7/5

22:05-00:10

1 stop30h 05m

Buenos Aires Ministro Pistarini

Tue 20/5

01:40-15:35

1 stop33h 55m

£895

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 39 results
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Best time to book a flight from Heathrow to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Heathrow 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.

Travel insights for flights from Heathrow to Buenos Aires

Get recent, data-driven insights about flights from Heathrow to Buenos Aires including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Buenos Aires. Price data was last updated on 10 January 2025.

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London Heathrow Airport to Buenos Aires?

Currently, June is the cheapest month in which you can book a flight from London Heathrow Airport to Buenos Aires (average of £994). Flying from London Heathrow Airport 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 LHR to BUE?

Find hourly flight availability from Heathrow 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 17 January 2025.

It’s typically best to fly out from London Heathrow Airport to Buenos Aires in the morning. Doing so could potentially save you 13% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from London Heathrow Airport to Buenos Aires?

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

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

Weekly flight availability from London Heathrow Airport to Buenos Aires

Explore weekly flight availability from Heathrow 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 17 January 2025.

The most flights from LHR to BUE are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buenos Aires ranges from 50.0 - 100.0 inches per month. January is typically the wettest month, when rainfall can reach 100.0 mm. June is typically the driest time to visit Buenos Aires when rainfall is around 50.0 mm.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 11.0 C).

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 17 January 2025.
To help decide which airline to fly from London to Buenos Aires, see what other customers have to say about Air France, SWISS and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

8.0
Very Good
8,513 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

7.8
Good
1,339 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

7.6
Good
1,285 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

7.5
Good
1,598 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

7.5
Good
1,849 reviews
8.0
Very Good
8,513 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 flying from London Heathrow Airport to Buenos Aires round-trip?

    Our cheapest airline available from London Heathrow Airport to Buenos Aires is Air Canada. Our recent data shows that you can find tickets from as low as £833 on this airline. Additional options worth looking into are Iberia and Lufthansa, starting at £837 and £856 round-trip. Air Canada is 15% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Buenos Aires one-way?

    £536 is the cheapest one-way deal found within the past few days, from LATAM Airlines. You may also be able to find cheap deals on Iberia and Aeromexico, with prices starting from £550 and £565, respectively.

  • What are the cheapest flights from London Heathrow Airport to Buenos Aires?

    Looking at all options, your cheapest flight can be booked for £919. While the most popular route (London Heathrow - Buenos Aires Ministro Pistarini) can be booked for £808 on average our data indicates £1,739 when flying from London Heathrow Airport to Buenos Aires.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 London Heathrow Airport to Buenos Aires?

    Currently, June is the cheapest month in which you can book a flight from London Heathrow Airport to Buenos Aires (average of £994). Flying from London Heathrow Airport 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.

Top 9 airlines flying from Heathrow to Buenos Aires

Discover the top 9 airlines that operate flights from Heathrow 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 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£490Average£890FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest£708Average£742FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Turkish AirlinesCheapest£714Average£732FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
IberiaCheapest£755Average£1,013FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest£771Average£990FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£809Average£894FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£813Average£1,047FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£864Average£1,225FlexibilityNo cancel feeOn-time75%
Search KLM flights
LATAM AirlinesCheapest£923Average£1,296FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

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

When you search for this flight from Heathrow to Buenos Aires, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Buenos Aires.

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

Yes, we can. To see specific flights from Heathrow to Buenos Aires with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Buenos Aires from Heathrow today and book when prices fit your budget.

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