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Cheap flights from London Heathrow Airport to Argentina from £452

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 Argentina departing on 15/3. 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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0 bags

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Find the cheapest flights from London Heathrow Airport to Argentina

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:05 - 00:23
LHR
-
COR
63h 18m
2 stops
United Airlines Logo
05:29 - 07:55
COR
-
LHR
47h 26m
2 stops
£785United Airlines
Thu, 12 Mar - Mon, 16 Mar
Multiple Airlines Logo
12:05 - 03:53
LHR
-
ROS
42h 48m
2 stops
Multiple Airlines Logo
01:26 - 05:55
ROS
-
LHR
25h 29m
2 stops
£787Multiple Airlines
Wed, 18 Mar - Tue, 24 Mar
United Airlines Logo
12:05 - 09:20
LHR
-
EZE
24h 15m
1 stop
United Airlines Logo
21:05 - 08:25
EZE
-
LHR
32h 20m
2 stops
£796United Airlines
Thu, 26 Feb - Thu, 19 Mar
Lufthansa Logo
11:30 - 06:25
LHR
-
EZE
22h 55m
1 stop
Lufthansa Logo
16:35 - 20:40
EZE
-
LHR
24h 05m
1 stop
£798Lufthansa
Thu, 7 May - Fri, 29 May
Avianca Logo
21:40 - 05:40
LHR
-
AEP
35h 00m
1 stop
Avianca Logo
07:00 - 14:35
AEP
-
LHR
28h 35m
1 stop
£798Avianca
Tue, 3 Mar - Tue, 10 Mar
Avianca Logo
21:40 - 05:40
LHR
-
AEP
35h 00m
1 stop
Avianca Logo
07:00 - 14:35
AEP
-
LHR
28h 35m
1 stop
£799Avianca
Sun, 15 Mar - Thu, 26 Mar
Air Canada Logo
13:25 - 15:10
LHR
-
EZE
52h 45m
3 stops
Air Canada Logo
16:45 - 06:30
EZE
-
LHR
34h 45m
2 stops
£802Air Canada
Wed, 18 Mar - Wed, 25 Mar
Air Canada Logo
13:25 - 15:10
LHR
-
EZE
52h 45m
3 stops
Air Canada Logo
16:45 - 06:30
EZE
-
LHR
34h 45m
2 stops
£804Air Canada
Wed, 18 Mar - Wed, 25 Mar
LATAM Airlines Logo
18:45 - 11:05
LHR
-
MDZ
19h 20m
2 stops
LATAM Airlines Logo
10:20 - 14:05
MDZ
-
LHR
24h 45m
2 stops
£918LATAM Airlines
Wed, 18 Mar - Wed, 25 Mar
LATAM Airlines Logo
20:15 - 11:55
LHR
-
MDZ
18h 40m
1 stop
LATAM Airlines Logo
10:20 - 14:05
MDZ
-
LHR
24h 45m
2 stops
£929LATAM Airlines
Wed, 18 Mar - Wed, 25 Mar

SWISS flights from London Heathrow Airport to Argentina

Our best SWISS deals on London Heathrow Airport to Argentina flight tickets
SWISS
10 Mar
LHR18:40London Heathrow
20h 10m
2 stops
EZE11:50Buenos Aires Ministro Pistarini
11 Mar
EZE14:40Buenos Aires Ministro Pistarini
27h 45m
3 stops
LHR21:25London Heathrow
£798
SWISS
9 Mar
LHR20:05London Heathrow
42h 45m
2 stops
EZE11:50Buenos Aires Ministro Pistarini
25 Mar
EZE14:40Buenos Aires Ministro Pistarini
27h 45m
3 stops
LHR21:25London Heathrow
£809
SWISS
16 Mar
LHR20:05London Heathrow
42h 45m
2 stops
EZE11:50Buenos Aires Ministro Pistarini
25 Mar
EZE14:40Buenos Aires Ministro Pistarini
23h 00m
3 stops
LHR16:40London Heathrow
£809

Air Canada flights from London Heathrow Airport to Argentina

Our best Air Canada deals on London Heathrow Airport to Argentina flight tickets
Air Canada
23 Apr
LHR14:05London Heathrow
52h 25m
3 stops
EZE14:30Buenos Aires Ministro Pistarini
14 May
EZE16:35Buenos Aires Ministro Pistarini
36h 00m
2 stops
LHR08:35London Heathrow
£799
Air Canada
18 Mar
LHR13:25London Heathrow
52h 45m
3 stops
EZE15:10Buenos Aires Ministro Pistarini
25 Mar
EZE16:45Buenos Aires Ministro Pistarini
34h 45m
2 stops
LHR06:30London Heathrow
£802
Air Canada
6 May
LHR14:05London Heathrow
28h 25m
3 stops
EZE14:30Buenos Aires Ministro Pistarini
14 May
EZE16:35Buenos Aires Ministro Pistarini
36h 00m
2 stops
LHR08:35London Heathrow
£807

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Argentina 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 2 February 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Argentina that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonCordoba

LHR - COR

LHRCOR

London Heathrow

Thu 12/3

12:05-00:23

2 stops63h 18m

Cordoba Pajas Blancas

Mon 16/3

05:29-07:55

2 stops47h 26m

£785

LondonRosario

LHR - ROS

LHRROS

London Heathrow

Wed 18/3

12:05-03:53

2 stops42h 48m

Rosario Fisherton

Tue 24/3

01:26-05:55

2 stops25h 29m

£787

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Thu 26/2

12:05-09:20

1 stop24h 15m

Buenos Aires Ministro Pistarini

Thu 19/3

21:05-08:25

2 stops32h 20m

£796

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Thu 7/5

11:30-06:25

1 stop22h 55m

Buenos Aires Ministro Pistarini

Fri 29/5

16:35-20:40

1 stop24h 05m

£798

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Tue 3/3

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Tue 10/3

07:00-14:35

1 stop28h 35m

£798

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sun 15/3

21:40-05:40

1 stop35h 00m

Buenos Aires Jorge Newbery

Thu 26/3

07:00-14:35

1 stop28h 35m

£799

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 18/3

13:25-15:10

3 stops52h 45m

Buenos Aires Ministro Pistarini

Wed 25/3

16:45-06:30

2 stops34h 45m

£802

LondonBuenos Aires

LHR - EZE

LHREZE

London Heathrow

Wed 18/3

13:25-15:10

3 stops52h 45m

Buenos Aires Ministro Pistarini

Wed 25/3

16:45-06:30

2 stops34h 45m

£804

LondonMendoza

LHR - MDZ

LHRMDZ

London Heathrow

Wed 18/3

18:45-11:05

2 stops19h 20m

Mendoza El Plumerillo

Wed 25/3

10:20-14:05

2 stops24h 45m

£918

LondonMendoza

LHR - MDZ

LHRMDZ

London Heathrow

Wed 18/3

20:15-11:55

1 stop18h 40m

Mendoza El Plumerillo

Wed 25/3

10:20-14:05

2 stops24h 45m

£929

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Argentina from

How to get the cheapest flight ticket from London Heathrow Airport to Argentina

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 Argentina?

The month of May is, on average, the cheapest month to fly to Argentina from London Heathrow Airport, with most prices found around £886. If you aren’t able to travel to Argentina during the month of May, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £888.

What is the cheapest day to depart on your flight to Argentina?

The cheapest day to depart on your flight to Argentina is on a Monday when prices can be found for as low as £961. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,118.

What is the cheapest London Heathrow to Argentina flight route?

Fly from London Heathrow to Buenos Aires Ministro Pistarini for the best London Heathrow - Argentina flight prices

How far in advance should I book a flight to Argentina?

You are more likely to see cheaper flights to Argentina from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Argentina for around £1,006 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Argentina from London Heathrow Airport for as low as £845 on momondo.

What cabin class options are available on London Heathrow to Argentina flights?

There are 2 cabin classes available to choose from on London Heathrow to Argentina flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Argentina flights?

You could potentially save up to 26% on your flight if you consider stops on a London Heathrow Airport to Argentina flight.

Cheap London Heathrow Airport to Argentina flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Argentina

Best price found

£904

Fastest flight time

16h 10m

Direct flights

Every day

Airports in Argentina

58 airports
The best flight deal from London Heathrow Airport to Argentina found on momondo in the last 72 hours is £904
The fastest flight from London Heathrow Airport to Argentina takes 16h 10m
Direct flights go from London Heathrow Airport to Argentina every day.
There are 58 airports in Argentina. From London Heathrow Airport there are direct flights to Buenos Aires Ministro Pistarini (EZE).
Search flight deals

  • When did momondo last update prices for flights from London Heathrow Airport to Argentina?

    Prices for flights from London Heathrow Airport to Argentina refresh daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Argentina?

  • How old do you have to be to fly from London Heathrow Airport to Argentina?

    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 Argentina.

  • What documentation or ID do you need to fly to Argentina?

    The travel and health documents you'll need for your trip to Argentina 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 Argentina. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Argentina?

Best airlines flying from London Heathrow Airport to Argentina

Compare and see reviews for airlines that fly from London Heathrow Airport to Argentina with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom £687Free CancellationRating
6.5
2,496 reviews
Search Avianca flights
IberiaPriceFrom £708Free CancellationRating
7.0
3,102 reviews
Search Iberia flights
FinnairPriceFrom £740Free CancellationRating
7.6
1,357 reviews
Search Finnair flights
Air FrancePriceFrom £754Free CancellationRating
7.4
1,531 reviews
Search Air France flights
British AirwaysPriceFrom £813Free CancellationRating
6.7
7,711 reviews
Search British Airways flights
LATAM AirlinesPriceFrom £834Free CancellationRating
7.5
1,918 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom £852Free CancellationRating
7.2
11,213 reviews
Search American Airlines flights
LufthansaPriceFrom £904Free CancellationRating
6.8
7,758 reviews
Search Lufthansa flights

Why use momondo?

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

Finding the right flight to Argentina from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Argentina quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Argentina 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 Argentina?

Once all potential London to Argentina 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 Argentina right now. Can momondo alert me if prices change?

Price alerts on flights to Argentina 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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