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Cheap flights from London Heathrow Airport to Buenos Aires from £525

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 Heathrow Airport to Buenos Aires departing on 18/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Buenos Aires

Cheap return flights

Avianca Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35AEP-LHR
28h 35m1 stop
£765Avianca
Find Deal
Wed, 12 Nov - Mon, 24 Nov
Avianca Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35AEP-LHR
28h 35m1 stop
£766Avianca
Find Deal
Mon, 3 Nov - Wed, 19 Nov
Avianca Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35AEP-LHR
28h 35m1 stop
£767Avianca
Find Deal
Wed, 5 Nov - Thu, 13 Nov
Avianca Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35AEP-LHR
28h 35m1 stop
£768Avianca
Find Deal
Wed, 5 Nov - Thu, 13 Nov
Avianca Logo
21:40 - 05:40LHR-AEP
35h 00m1 stop
Avianca Logo
07:00 - 14:35AEP-LHR
28h 35m1 stop
£770Avianca
Find Deal
Sun, 8 Mar - Sun, 22 Mar
Multiple Airlines Logo
14:05 - 17:30LHR-AEP
31h 25m2 stops
Multiple Airlines Logo
00:05 - 07:10AEP-LHR
52h 05m2 stops
£832Multiple Airlines
Find Deal
Sun, 12 Oct - Sat, 25 Oct
LATAM Airlines Logo
20:15 - 14:00LHR-AEP
20h 45m1 stop
LATAM Airlines Logo
12:40 - 14:05AEP-LHR
22h 25m1 stop
£874LATAM Airlines
Find Deal
Sun, 16 Nov - Mon, 1 Dec
LATAM Airlines Logo
17:25 - 09:40LHR-AEP
19h 15m2 stops
LATAM Airlines Logo
18:20 - 14:05AEP-LHR
16h 45m1 stop
£875LATAM Airlines
Find Deal
Thu, 12 Mar - Thu, 26 Mar
LATAM Airlines Logo
15:45 - 09:40LHR-AEP
20h 55m2 stops
LATAM Airlines Logo
18:20 - 14:05AEP-LHR
16h 45m1 stop
£876LATAM Airlines
Find Deal
Sun, 15 Mar - Wed, 25 Mar
LATAM Airlines Logo
19:40 - 18:40LHR-AEP
26h 00m2 stops
LATAM Airlines Logo
11:30 - 14:05AEP-LHR
23h 35m2 stops
£878LATAM Airlines
Find Deal
Sat, 7 Feb - Sat, 7 Mar

Avianca flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on London Heathrow Airport to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
12 Nov
LHR21:40London Heathrow
35h 00m
1 stop
AEP05:40Buenos Aires Jorge Newbery
24 Nov
AEP07:00Buenos Aires Jorge Newbery
28h 35m
1 stop
LHR14:35London Heathrow
£765
Find similar
Avianca
3 Nov
LHR21:40London Heathrow
35h 00m
1 stop
AEP05:40Buenos Aires Jorge Newbery
19 Nov
AEP07:00Buenos Aires Jorge Newbery
28h 35m
1 stop
LHR14:35London Heathrow
£766
Find similar
Avianca
5 Nov
LHR21:40London Heathrow
35h 00m
1 stop
AEP05:40Buenos Aires Jorge Newbery
13 Nov
AEP07:00Buenos Aires Jorge Newbery
28h 35m
1 stop
LHR14:35London Heathrow
£767
Find similar

LATAM Airlines flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on London Heathrow Airport to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
16 Nov
LHR20:15London Heathrow
20h 45m
1 stop
AEP14:00Buenos Aires Jorge Newbery
1 Dec
AEP12:40Buenos Aires Jorge Newbery
22h 25m
1 stop
LHR14:05London Heathrow
£874
Find similar
LATAM Airlines
12 Mar
LHR17:25London Heathrow
19h 15m
2 stops
AEP09:40Buenos Aires Jorge Newbery
26 Mar
AEP18:20Buenos Aires Jorge Newbery
16h 45m
1 stop
LHR14:05London Heathrow
£875
Find similar
LATAM Airlines
15 Mar
LHR15:45London Heathrow
20h 55m
2 stops
AEP09:40Buenos Aires Jorge Newbery
25 Mar
AEP18:20Buenos Aires Jorge Newbery
16h 45m
1 stop
LHR14:05London Heathrow
£876
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport 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 279,928 searches. Data last updated 16 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Wed 12/11

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Mon 24/11

07:00-14:35

1 stop28h 35m

£765

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 3/11

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Wed 19/11

07:00-14:35

1 stop28h 35m

£766

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Wed 5/11

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Thu 13/11

07:00-14:35

1 stop28h 35m

£767

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Wed 5/11

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Thu 13/11

07:00-14:35

1 stop28h 35m

£768

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sun 8/3

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Sun 22/3

07:00-14:35

1 stop28h 35m

£770

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sun 12/10

14:05-17:30

2 stops31h 25m

Buenos Aires Jorge Newbery

Sat 25/10

00:05-07:10

2 stops52h 05m

£832

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sun 16/11

20:15-14:00

1 stop20h 45m

Buenos Aires Jorge Newbery

Mon 1/12

12:40-14:05

1 stop22h 25m

£874

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Thu 12/3

17:25-09:40

2 stops19h 15m

Buenos Aires Jorge Newbery

Thu 26/3

18:20-14:05

1 stop16h 45m

£875

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sun 15/3

15:45-09:40

2 stops20h 55m

Buenos Aires Jorge Newbery

Wed 25/3

18:20-14:05

1 stop16h 45m

£876

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sat 7/2

19:40-18:40

2 stops26h 00m

Buenos Aires Jorge Newbery

Sat 7/3

11:30-14:05

2 stops23h 35m

£878

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from London Heathrow Airport to Buenos Aires Jorge Newbery Airport

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 day to depart on your flight to Buenos Aires Jorge Newbery Airport?

According to our data, Sunday is the cheapest day to fly to Buenos Aires Jorge Newbery Airport from London Heathrow Airport. The lowest ticket price found for a Sunday departure recently was £769. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Buenos Aires Jorge Newbery Airport for around £1,433.

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

Flying to Buenos Aires Jorge Newbery Airport from London Heathrow Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as £877 when looking at flights departing in the afternoon. Try not to purchase tickets in the evening because they tend to be around £1,071. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on London Heathrow Airport to Buenos Aires Jorge Newbery Airport flights?

You could potentially save up to 6% on your flight if you consider stops on a London Heathrow Airport to Buenos Aires Jorge Newbery Airport flight.

When to book flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport

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

Cheap London Heathrow Airport to Buenos Aires Jorge Newbery Airport (LHR to AEP) flight deals and tips

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

Direct flights

None
There are no direct flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from London Heathrow Airport to Buenos Aires Jorge Newbery Airport.
Search flight deals

  • How far is London Heathrow to Buenos Aires Jorge Newbery by plane?

    London Heathrow and Buenos Aires Jorge Newbery are 6896.3 mi apart from one another. 16h 25m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport?

    Prices for flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport?

  • How old do you have to be to fly from London Heathrow Airport to Buenos Aires Jorge Newbery Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Buenos Aires Jorge Newbery Airport.

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

    The travel and health documents you'll need for your trip to Buenos Aires Jorge Newbery Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires Jorge Newbery Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from London Heathrow Airport to Buenos Aires Jorge Newbery Airport?

Best airlines flying from London Heathrow Airport to Buenos Aires Jorge Newbery Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Buenos Aires Jorge Newbery Airport with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom £861Free CancellationRating
7.5
1,847 reviews
Search LATAM Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Buenos Aires?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Buenos Aires for you.

Can I find flights from London to Buenos Aires with flexible booking policies on momondo?

momondo does allow users to show only those flights to Buenos Aires from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Buenos Aires?

Once all potential London to Buenos Aires flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Buenos Aires from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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