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London To Buenos Aires Flights

  • One-Way
  • Round-Trip
  • Multi-City

From

Indira Gandhi International Airport

To

Chhatrapati Shivaji International Airport

DEPARTURE DATE

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Friday

Return Date

Book a round trip
to save more

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TRAVELLER & CLASS

1 Traveller

Economy

November
December
January
February
March
April
August
September
October

February is by far the best month, wherein you can get cheapest flights for London to Buenos Aires. Meanwhile, December is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.

Things to know
arrow One Way Fare
February

February- During this month the footfall is less so, the flight is gradually inexpensive.

round Round Trip Fare
February

February - is the cheapest month to book round trip flights.

Cheaper Fare
£ 749

Cheapest Fare- Currently, this is the fare price based on the current demand.

disclDisclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Best Flight From London To Buenos Aires

Cheapest
Avianca
Avianca

LHR

21:40

London

London Heathrow Airport

Sat , 22 Nov 2025

35h 00m
ellipse
1 Stop

AEP

05:40

Buenos Aires

Jorge Newbery Airpark

Mon, 24 Nov 2025

£669
British Airways
British Airways

LHR

21:15

London

London Heathrow Airport

Sat , 22 Nov 2025

23h 05m
ellipse
1 Stop

AEP

17:20

Buenos Aires

Jorge Newbery Airpark

Sun, 23 Nov 2025

£849
British Airways
British Airways

LHR

21:15

London

London Heathrow Airport

Sat , 22 Nov 2025

15h 25m
ellipse
1 Stop

AEP

09:40

Buenos Aires

Jorge Newbery Airpark

Sun, 23 Nov 2025

£859
Lan Airlines
Lan Airlines

LHR

20:15

London

London Heathrow Airport

Sat , 22 Nov 2025

18h 25m
ellipse
1 Stop

AEP

11:40

Buenos Aires

Jorge Newbery Airpark

Sun, 23 Nov 2025

£860
Swiss
Swiss

LHR

20:05

London

London Heathrow Airport

Sat , 22 Nov 2025

42h 35m
ellipse
2 Stop

AEP

11:40

Buenos Aires

Jorge Newbery Airpark

Mon, 24 Nov 2025

£892
Lan Airlines
Lan Airlines

LHR

20:15

London

London Heathrow Airport

Sat , 22 Nov 2025

16h 25m
ellipse
1 Stop

AEP

09:40

Buenos Aires

Jorge Newbery Airpark

Sun, 23 Nov 2025

£992
Swiss
Swiss

LHR

18:40

London

London Heathrow Airport

Sat , 22 Nov 2025

20h 00m
ellipse
2 Stop

AEP

11:40

Buenos Aires

Jorge Newbery Airpark

Sun, 23 Nov 2025

£1092
TAP Air Portugal
TAP Air Portugal

LHR

08:15

London

London Heathrow Airport

Sat , 22 Nov 2025

20h 25m
ellipse
2 Stop

AEP

01:40

Buenos Aires

Jorge Newbery Airpark

Sun, 23 Nov 2025

£1431
KLM Royal Dutch Airlines
KLM Royal Dutch Airlines

LHR

17:50

London

London Heathrow Airport

Sat , 22 Nov 2025

18h 50m
ellipse
2 Stop

AEP

09:40

Buenos Aires

Jorge Newbery Airpark

Sun, 23 Nov 2025

£3598
Austrian Airlines
Austrian Airlines

LHR

10:00

London

London Heathrow Airport

Sat , 22 Nov 2025

24h 55m
ellipse
2 Stop

AEP

07:55

Buenos Aires

Jorge Newbery Airpark

Sun, 23 Nov 2025

£5691
ellipse

Find the Lowest Airfare London to Buenos Aires

Cheapest Fares
Fare
Date
Airline
Departure
Lowest Airfare
£749
13 November 2025
Air Canada
14:30 PM
Cheapest Airfare Within 30 Days
£749
13 November 2025
Air Canada
14:30 PM
Cheapest Airfare Within 90 Days
£532
02 February 2026
United Airlines
12:50 AM
ellipse

Early Morning Flight London to Buenos Aires

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Cheapest Flight
Found
£1431
group
Average Flight
Time
20h 25m
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Date/Time
22 Nov 2025
08:15 AM
plane
Airlines
TAP Air Portugal
Ellipse

Late Night Flight London to Buenos Aires

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Cheapest Flight
Found
£669
group
Average Flight
Time
35h 00m
calendar
Date/Time
22 Nov 2025
21:40 PM
plane
Airlines
Avianca

Flights from London to Buenos Aires with Easemytrip

Flying from London to Buenos Aires has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.

The air route between London to Buenos Aires is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between London Heathrow Airport (LHR) and Jorge Newbery Airpark (AEP). You can expect a flight distance of approximately 11106 km, and most direct services cover it in around 20:02.

Let’s take a closer look at everything you need to know before booking your flight from London to Buenos Aires.

Travel Overview: London to Buenos Aires

Flight Details Information
Route Distance 11106 km
Average Flight Time 20:02 hrs
Departure Airport London Heathrow Airport (LHR)
Arrival Airport Jorge Newbery Airpark (AEP)
Cabin Classes Available Economy Class, Premium Economy, Business Class, First Class
Direct Flights NO
Common Airlines Avianca, British Airways, Lan Airlines, Swiss

The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.

Read more

FAQs about flights from London to Buenos Aires

Are there direct flights from London to Buenos Aires?

How early should I book?

Which airlines offer the most frequent service?

Is it cheaper to fly round-trip or one-way?

Can I mix airlines for departure and return?

Is it possible to change or cancel my booking after confirmation?

Can I book additional baggage or in-flight services in advance?