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Cheap flights from London Heathrow Airport to Buenos Aires from £413

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 22/9. 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
22:05 - 05:40LHR-AEP
35h 35m1 stop
Avianca Logo
07:00 - 15:35AEP-LHR
28h 35m1 stop
£767Avianca
Find Deal
Sun, 7 Sep - Mon, 22 Sep
Avianca Logo
22:05 - 05:40LHR-AEP
35h 35m1 stop
Avianca Logo
07:00 - 15:35AEP-LHR
28h 35m1 stop
£769Avianca
Find Deal
Thu, 9 Oct - Sat, 25 Oct
Avianca Logo
22:05 - 05:40LHR-AEP
35h 35m1 stop
Avianca Logo
07:00 - 15:35AEP-LHR
28h 35m1 stop
£771Avianca
Find Deal
Thu, 4 Sep - Wed, 1 Oct
Avianca Logo
22:05 - 05:40LHR-AEP
35h 35m1 stop
Avianca Logo
07:00 - 15:35AEP-LHR
28h 35m1 stop
£772Avianca
Find Deal
Sun, 31 Aug - Fri, 26 Sep
SWISS Logo
18:40 - 11:40LHR-AEP
20h 00m2 stops
SWISS Logo
14:55 - 16:20AEP-LHR
22h 25m2 stops
£816SWISS
Find Deal
Tue, 11 Nov - Tue, 25 Nov
LATAM Airlines Logo
21:20 - 10:30LHR-AEP
17h 10m1 stop
LATAM Airlines Logo
14:55 - 14:05AEP-LHR
20h 10m1 stop
£830LATAM Airlines
Find Deal
Wed, 20 Aug - Sat, 6 Dec
LATAM Airlines Logo
21:20 - 12:00LHR-AEP
18h 40m1 stop
LATAM Airlines Logo
14:55 - 14:05AEP-LHR
20h 10m1 stop
£832LATAM Airlines
Find Deal
Wed, 20 Aug - Sat, 6 Dec
Air Canada Logo
13:25 - 17:20LHR-AEP
30h 55m2 stops
Air Canada Logo
13:40 - 07:10AEP-LHR
38h 30m2 stops
£853Air Canada
Find Deal
Tue, 11 Nov - Sat, 22 Nov
Air Canada Logo
13:25 - 17:20LHR-AEP
30h 55m2 stops
Air Canada Logo
13:40 - 06:30AEP-LHR
37h 50m2 stops
£861Air Canada
Find Deal
Thu, 13 Nov - Tue, 18 Nov
Logo
06:00 - 17:30LHR-AEP
39h 30m2 stops
Logo
10:55 - 15:35AEP-LHR
24h 40m2 stops
£882
Find Deal
Wed, 17 Sep - Wed, 22 Oct

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
20 Aug
LHR21:20London Heathrow
17h 10m
1 stop
AEP10:30Buenos Aires Jorge Newbery
6 Dec
AEP14:55Buenos Aires Jorge Newbery
20h 10m
1 stop
LHR14:05London Heathrow
£830
Find similar
LATAM Airlines
20 Aug
LHR21:20London Heathrow
18h 40m
1 stop
AEP12:00Buenos Aires Jorge Newbery
6 Dec
AEP14:55Buenos Aires Jorge Newbery
20h 10m
1 stop
LHR14:05London Heathrow
£832
Find similar
LATAM Airlines
12 Sept
LHR21:20London Heathrow
17h 10m
1 stop
AEP10:30Buenos Aires Jorge Newbery
22 Oct
AEP14:55Buenos Aires Jorge Newbery
20h 10m
1 stop
LHR15:05London Heathrow
£866
Find similar

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
7 Sept
LHR22:05London Heathrow
35h 35m
1 stop
AEP05:40Buenos Aires Jorge Newbery
22 Sept
AEP07:00Buenos Aires Jorge Newbery
28h 35m
1 stop
LHR15:35London Heathrow
£767
Find similar
Avianca
9 Oct
LHR22:05London Heathrow
35h 35m
1 stop
AEP05:40Buenos Aires Jorge Newbery
25 Oct
AEP07:00Buenos Aires Jorge Newbery
28h 35m
1 stop
LHR15:35London Heathrow
£769
Find similar
Avianca
4 Sept
LHR22:05London Heathrow
35h 35m
1 stop
AEP05:40Buenos Aires Jorge Newbery
1 Oct
AEP07:00Buenos Aires Jorge Newbery
28h 35m
1 stop
LHR15:35London Heathrow
£771
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 1 August 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

Sun 7/9

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Mon 22/9

07:00-15:35

1 stop28h 35m

£767

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Thu 9/10

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Sat 25/10

07:00-15:35

1 stop28h 35m

£769

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Thu 4/9

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Wed 1/10

07:00-15:35

1 stop28h 35m

£771

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sun 31/8

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Fri 26/9

07:00-15:35

1 stop28h 35m

£772

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Tue 11/11

18:40-11:40

2 stops20h 00m

Buenos Aires Jorge Newbery

Tue 25/11

14:55-16:20

2 stops22h 25m

£816

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Wed 20/8

21:20-10:30

1 stop17h 10m

Buenos Aires Jorge Newbery

Sat 6/12

14:55-14:05

1 stop20h 10m

£830

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Wed 20/8

21:20-12:00

1 stop18h 40m

Buenos Aires Jorge Newbery

Sat 6/12

14:55-14:05

1 stop20h 10m

£832

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Tue 11/11

13:25-17:20

2 stops30h 55m

Buenos Aires Jorge Newbery

Sat 22/11

13:40-07:10

2 stops38h 30m

£853

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Thu 13/11

13:25-17:20

2 stops30h 55m

Buenos Aires Jorge Newbery

Tue 18/11

13:40-06:30

2 stops37h 50m

£861

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Wed 17/9

06:00-17:30

2 stops39h 30m

Buenos Aires Jorge Newbery

Wed 22/10

10:55-15:35

2 stops24h 40m

£882

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 month to fly to Buenos Aires Jorge Newbery Airport?

In general, September is the cheapest month to fly from London Heathrow Airport to Buenos Aires Jorge Newbery Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £852. If you aren’t able to travel to Buenos Aires Jorge Newbery Airport during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of £918.

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 £790. 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 £1,471.

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 £901 when looking at flights departing in the afternoon. Try not to purchase tickets in the evening because they tend to be around £1,100. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Best price found

£413

Fastest flight time

16h 25m

Direct flights

None
The best one-way flight to Buenos Aires Jorge Newbery Airport from London Heathrow Airport in the past 72 hours is £413. The best return flight deal from London Heathrow Airport to Buenos Aires Jorge Newbery Airport found on momondo in the last 72 hours is £767.
The fastest flight from London Heathrow Airport to Buenos Aires Jorge Newbery Airport takes 16h 25m
There are no direct flights from London Heathrow Airport to Buenos Aires Jorge Newbery Airport. Popular non-direct route for this connection is London Heathrow Airport - Buenos Aires Jorge Newbery Airport.
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  • 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 £884Free CancellationRating
7.5
1,822 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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