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Cheap flights from London to Buenos Aires from £425

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 to Buenos Aires departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
21:20 - 09:40
LHR
-
AEP
16h 20m
1 stop
LATAM Airlines Logo
17:00 - 15:05
AEP
-
LHR
18h 05m
1 stop
£739LATAM Airlines
Mon, 25 May - Mon, 8 Jun
Avianca Logo
22:05 - 05:40
LHR
-
AEP
35h 35m
1 stop
Avianca Logo
07:00 - 15:35
AEP
-
LHR
28h 35m
1 stop
£745Avianca
Thu, 23 Apr - Thu, 14 May
Avianca Logo
22:05 - 05:40
LHR
-
AEP
35h 35m
1 stop
Avianca Logo
07:00 - 15:35
AEP
-
LHR
28h 35m
1 stop
£749Avianca
Thu, 16 Apr - Mon, 1 Jun
Avianca Logo
22:05 - 05:40
LHR
-
AEP
35h 35m
1 stop
Avianca Logo
07:00 - 15:35
AEP
-
LHR
28h 35m
1 stop
£752Avianca
Sat, 4 Apr - Wed, 13 May
Avianca Logo
22:05 - 05:40
LHR
-
AEP
35h 35m
1 stop
Avianca Logo
07:00 - 15:35
AEP
-
LHR
28h 35m
1 stop
£753Avianca
Wed, 15 Apr - Mon, 11 May
LATAM Airlines Logo
21:20 - 12:00
LHR
-
AEP
18h 40m
1 stop
LATAM Airlines Logo
17:00 - 15:05
AEP
-
LHR
18h 05m
1 stop
£769LATAM Airlines
Mon, 25 May - Sat, 6 Jun
TAP AIR PORTUGAL Logo
21:15 - 17:20
LGW
-
AEP
48h 05m
2 stops
TAP AIR PORTUGAL Logo
18:20 - 11:20
AEP
-
LGW
61h 00m
2 stops
£1,013TAP AIR PORTUGAL
Mon, 11 May - Mon, 18 May
TAP AIR PORTUGAL Logo
21:15 - 09:20
LGW
-
AEP
40h 05m
2 stops
TAP AIR PORTUGAL Logo
14:30 - 11:20
AEP
-
LGW
40h 50m
2 stops
£1,052TAP AIR PORTUGAL
Sun, 13 Sep - Mon, 21 Sep
SWISS Logo
18:00 - 09:40
LCY
-
AEP
19h 40m
2 stops
SWISS Logo
12:55 - 12:35
AEP
-
LCY
19h 40m
2 stops
£1,141SWISS
Wed, 13 May - Thu, 18 Jun
SWISS Logo
18:00 - 09:40
LCY
-
AEP
19h 40m
2 stops
SWISS Logo
12:55 - 12:35
AEP
-
LCY
19h 40m
2 stops
£1,235SWISS
Mon, 27 Apr - Sun, 10 May

LATAM Airlines flights from London to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on London to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
25 May
LHR21:20London Heathrow
16h 20m
1 stop
AEP09:40Buenos Aires Jorge Newbery
8 Jun
AEP17:00Buenos Aires Jorge Newbery
18h 05m
1 stop
LHR15:05London Heathrow
£739
LATAM Airlines
25 May
LHR21:20London Heathrow
18h 40m
1 stop
AEP12:00Buenos Aires Jorge Newbery
6 Jun
AEP17:00Buenos Aires Jorge Newbery
18h 05m
1 stop
LHR15:05London Heathrow
£769
LATAM Airlines
25 May
LHR21:20London Heathrow
16h 20m
1 stop
AEP09:40Buenos Aires Jorge Newbery
3 Jun
AEP17:00Buenos Aires Jorge Newbery
18h 05m
1 stop
LHR15:05London Heathrow
£789

Avianca flights from London to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on London to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
23 Apr
LHR22:05London Heathrow
35h 35m
1 stop
AEP05:40Buenos Aires Jorge Newbery
14 May
AEP07:00Buenos Aires Jorge Newbery
28h 35m
1 stop
LHR15:35London Heathrow
£745
Avianca
16 Apr
LHR22:05London Heathrow
35h 35m
1 stop
AEP05:40Buenos Aires Jorge Newbery
1 Jun
AEP07:00Buenos Aires Jorge Newbery
28h 35m
1 stop
LHR15:35London Heathrow
£749
Avianca
23 Apr
LHR22:05London Heathrow
35h 35m
1 stop
AEP05:40Buenos Aires Jorge Newbery
14 May
AEP07:00Buenos Aires Jorge Newbery
28h 35m
1 stop
LHR15:35London Heathrow
£751

momondo Fare Finder

 
Customise your flight search to find flights from London 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 18 March 2026.
Use the filters below to find and compare flights from London to Buenos Aires Jorge Newbery Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 25/5

21:20-09:40

1 stop16h 20m

Buenos Aires Jorge Newbery

Mon 8/6

17:00-15:05

1 stop18h 05m

£739

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Thu 23/4

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Thu 14/5

07:00-15:35

1 stop28h 35m

£745

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Thu 16/4

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Mon 1/6

07:00-15:35

1 stop28h 35m

£749

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Sat 4/4

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Wed 13/5

07:00-15:35

1 stop28h 35m

£752

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Wed 15/4

22:05-05:40

1 stop35h 35m

Buenos Aires Jorge Newbery

Mon 11/5

07:00-15:35

1 stop28h 35m

£753

LondonBuenos Aires

LHR - AEP

LHRAEP

London Heathrow

Mon 25/5

21:20-12:00

1 stop18h 40m

Buenos Aires Jorge Newbery

Sat 6/6

17:00-15:05

1 stop18h 05m

£769

LondonBuenos Aires

LGW - AEP

LGWAEP

London Gatwick

Mon 11/5

21:15-17:20

2 stops48h 05m

Buenos Aires Jorge Newbery

Mon 18/5

18:20-11:20

2 stops61h 00m

£1,013

LondonBuenos Aires

LGW - AEP

LGWAEP

London Gatwick

Sun 13/9

21:15-09:20

2 stops40h 05m

Buenos Aires Jorge Newbery

Mon 21/9

14:30-11:20

2 stops40h 50m

£1,052

LondonBuenos Aires

LCY - AEP

LCYAEP

London City

Wed 13/5

18:00-09:40

2 stops19h 40m

Buenos Aires Jorge Newbery

Thu 18/6

12:55-12:35

2 stops19h 40m

£1,141

LondonBuenos Aires

LCY - AEP

LCYAEP

London City

Mon 27/4

18:00-09:40

2 stops19h 40m

Buenos Aires Jorge Newbery

Sun 10/5

12:55-12:35

2 stops19h 40m

£1,235

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from London 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

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

You could potentially save up to 24% on your flight if you consider stops on a London to Buenos Aires Jorge Newbery Airport flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from London 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 to Buenos Aires Jorge Newbery Airport (LON to AEP) flight deals and tips

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

Fastest flight time

16h 10m

Direct flights

None
The fastest flight from London to Buenos Aires Jorge Newbery Airport takes 16h 10m
There are no direct flights from London to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from London to Buenos Aires Jorge Newbery Airport.
Search flight deals

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

    There are 6907.8 mi between London and Buenos Aires Jorge Newbery. Typically, this will take 16h 10m by plane in normal conditions.

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

    Prices for flights from London to Buenos Aires Jorge Newbery Airport are updated daily.

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

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

Best airlines flying from London to Buenos Aires Jorge Newbery Airport

Compare and see reviews for airlines that fly from London to Buenos Aires Jorge Newbery Airport with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom £850Free CancellationRating
7.4
1,914 reviews
Search LATAM Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Buenos Aires from London.

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

Flights from London to Buenos Aires with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for London to Buenos Aires flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Buenos Aires, momondo offers a useful price alert feature which will track prices for flights to Buenos Aires from London and alert you when they change.

An easier way to manage your Buenos Aires Jorge Newbery Airport trip

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