Are direct flights from London to Buenos Aires always the best option?

Direct flights offer convenience by minimizing travel time and avoiding layovers. However, they are not always the most budget-friendly choice. Flights with one or more connections can sometimes be significantly cheaper, depending on the route and airline.

Can flexible travel dates help on London to Buenos Aires flights?

Yes, being flexible with your travel dates can significantly impact flight prices. Flying during off-peak seasons or on weekdays, rather than weekends, often results in lower fares. Adjusting your departure or return by even a few days may unlock better deals.

What extra costs should I check before booking London to Buenos Aires flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget to avoid surprises.

Flights From London

To Buenos Aires

Cheap Flights from London to Buenos Aires

Browse current best options from London. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

London

RatePunk searches hundreds of travel sites at once for deals on flights to Buenos Aires

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from London to Buenos Aires

Explore current cheapest deals departing from London to Buenos Aires

2026-09-14 – 2026-09-30
LON - Buenos Aires
86% AI deal score
£942
£704
Round trip
2026-09-11 – 2026-09-20
LON - Buenos Aires
92% AI deal score
£1,053
£708
Round trip
2026-09-17 – 2026-09-26
LON - Buenos Aires
92% AI deal score
£1,040
£708
Round trip
2026-10-07 – 2026-10-16
LON - Buenos Aires
93% AI deal score
£1,137
£708
Round trip
2026-11-10 – 2026-11-19
LON - Buenos Aires
92% AI deal score
£1,056
£708
Round trip
2026-11-03 – 2026-11-10
LON - Buenos Aires
91% AI deal score
£1,118
£724
Round trip
2026-09-01 – 2026-09-29
LON - Buenos Aires
87% AI deal score
£921
£726
Round trip
2026-11-16 – 2026-11-25
LON - Buenos Aires
85% AI deal score
£956
£730
Round trip
2026-09-07 – 2026-09-30
LON - Buenos Aires
88% AI deal score
£931
£731
Round trip
2026-09-01 – 2026-09-16
LON - Buenos Aires
90% AI deal score
£1,098
£734
Round trip

London to Buenos Aires: Overview

Insights for flights from London to Buenos Aires

A typical journey from London to Buenos Aires takes about 23h 58m, including connections. Given that most itineraries connect at least once, with a median of 2 stopovers, this extended travel time is common for the route. This reflects the long-haul nature of flights between these two cities.

For travelers looking for cheap flights from London to Buenos Aires, fares typically range from $1052–$1829, with a median of $1512. Right now, current fares are above the typical level. Only 5% of recent fares were classified as a good price, indicating that finding deals can be challenging.

When is the cheapest time to fly from London to Buenos Aires? The data shows that April is the most affordable month, with a median fare of $695. Following April, June offers a median fare of $960, and March presents a median of $997. Planning your trip during these months could result in significant savings.

Flights from London to Buenos Aires cover a considerable distance of 11137 km, classifying this as a long-haul route. This substantial distance means that itineraries almost always involve connections. Most itineraries connect at least once, with a median of 2 stopovers, as there are no direct flights available on this route. New deals for this long-haul route appear almost daily, suggesting frequent opportunities to find fares.

How much is a round trip from London to Buenos Aires

Regular price: £929 - £1,343

Prices are currently below the regular range.

The regular price range for flights from London to Buenos Aires is typically between 929 GBP and 1343 GBP. The current lowest deal is 708 GBP with Avianca, for travel from Sep 11-Sep 20.

now £708

Low £929

High £1,343

The cheapest time to fly from London to Buenos Aires

The cheapest month to fly from London to Buenos Aires is March, with a median price of $940. The most expensive month is December, with a median price of $1775. Prices are generally lower from January to November.

March

Cheapest

Flights from £940

December

Most Expensive

Flights from £1,775

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from London to Buenos Aires

Avianca

Aero Services Executive

Air Canada

Iberia Airlines

Last-minute flights going from London to Buenos Aires

Tue, Aug 18

⌛ Last-Minute

STN - Buenos Aires

London (STN) - Buenos Aires (EZE)

Ryanair

£1,283

£751

One-way

Mon, Aug 31

⌛ Last-Minute

LHR - Buenos Aires

London (LHR) - Buenos Aires (AEP)

£1,060

£756

One-way

Tue, Sep 1

⌛ Last-Minute

STN - Buenos Aires

London (STN) - Buenos Aires (EZE)

Ryanair

£1,082

£749

One-way

Mon, Sep 7

⌛ Last-Minute

LHR - Buenos Aires

London (LHR) - Buenos Aires (EZE)

Avianca

£1,053

£736

One-way

Tue, Sep 8

⌛ Last-Minute

LTN - Buenos Aires

London (LTN) - Buenos Aires (EZE)

Aero Services Executive

£941

£735

One-way

Tue, Sep 8

⌛ Last-Minute

LHR - Buenos Aires

London (LHR) - Buenos Aires (EZE)

Avianca

£1,046

£736

One-way

Biggest price drops on these dates for flights from London to Buenos Aires

9 nights

Dec 4 - Dec 13

£1,378 → £750

46%

16 nights

Dec 1 - Dec 17

£1,394 → £792

43%

12 nights

Dec 2 - Dec 14

£1,298 → £763

41%

5 nights

Aug 18 - Aug 23

£1,283 → £751

41%

Popular Airports to fly from London to Buenos Aires

London - Buenos Aires route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from London to Buenos Aires are above the typical level at $708.

📅 Best time to fly

Fly in March for the cheapest deals

Historically, March is the cheapest month to fly, with a median price of $940.

⏱️ Flight duration

Flights typically take 23h 58m

The typical flight duration from London to Buenos Aires is 23h 58m with connecting flights.

✈️ Airlines & availability

Connecting flights are dominant on this route

There are no direct flights; connecting flights are dominant, typically with 2 stopovers.

🏆 Airline highlight

Avianca offers many deals

Avianca has 64 deals for connecting flights, more than any other airline on this route.

🎯 Booking tip

Deals are frequent for this route

Deals for flights from London to Buenos Aires are frequent, appearing often.

London main airports to depart from

Heathrow (LHR)

Cheapest

Heathrow is a major international hub, offering many flight options from London to Buenos Aires.

📍 ~23 km from city center (reachable by car or train)

💸 Flights from ~£716

Gatwick (LGW)

Gatwick provides a good alternative for flights from London to Buenos Aires.

📍 ~40 km from city center (reachable by car or train)

💸 Flights from ~£790

London City (LCY)

London City Airport offers a convenient departure point for flights to Buenos Aires.

📍 ~13 km from city center (reachable by car or train)

💸 Flights from ~£884

London Southend (SEN)

London Southend is an option for travelers flying from London to Buenos Aires.

📍 ~57 km from city center (reachable by car or train)

💸 Flights from ~£854

London Stansted (STN)

London Stansted is another viable departure airport for your trip to Buenos Aires.

📍 ~49 km from city center (reachable by car or train)

💸 Flights from ~£778

Luton (LTN)

Luton Airport can be considered for flights from London to Buenos Aires.

📍 ~44 km from city center (reachable by car or train)

💸 Flights from ~£725

Buenos Aires main airports to arrive at

Ministro Pistarini International (EZE)

Cheapest

Ministro Pistarini International Airport is a good option for flights to Buenos Aires from London.

📍 ~28 km from city center (reachable by car)

💸 Flights from ~£716

Airports nearby Buenos Aires used as alternative

Carrasco International (MVD)

Cheapest

Carrasco International is a major international hub with high connectivity, easily accessible from Buenos Aires via frequent ferry services.

📍 ~220 km from Buenos Aires (reachable by ferry)

💸 Flights from ~£831

Business & First Class Flight Deals to Buenos Aires

92% AI deal score

$5,344

$3,430

Save $1,914

Frequently Asked Questions About Flights to Buenos Aires

To find more affordable flights, consider being flexible with your travel dates and times. Using flight comparison sites can help you compare options across various airlines. Looking into different airports in both your origin and destination regions may also reveal better deals.

Booking in advance often provides more competitive prices, especially for long-haul routes. However, prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Mid-week bookings can sometimes offer slight advantages over weekend purchases.

Comparing nearby airports can often lead to finding more economical flight options. Sometimes, flying into or out of a smaller airport in the region may reduce the overall ticket cost. Remember to factor in potential ground transportation expenses and time when considering this.

Related routes

More routes from London

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Flights to Buenos Aires from other cities

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London to Buenos Aires: Overview

Insights for flights from London to Buenos Aires

How much is a round trip from London to Buenos Aires

Regular price: £929 - £1,343

Prices are currently below the regular range.

The regular price range for flights from London to Buenos Aires is typically between 929 GBP and 1343 GBP. The current lowest deal is 708 GBP with Avianca, for travel from Sep 11-Sep 20.

now £708

Low £929

High £1,343

The cheapest time to fly from London to Buenos Aires

March

Cheapest

Flights from £940

December

Most Expensive

Flights from £1,775

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from London to Buenos Aires

Avianca

Aero Services Executive

Air Canada

Iberia Airlines

Last-minute flights going from London to Buenos Aires

Tue, Aug 18

⌛ Last-Minute

STN - Buenos Aires

London (STN) - Buenos Aires (EZE)

Ryanair

£1,283

£751

One-way

Mon, Aug 31

⌛ Last-Minute

LHR - Buenos Aires

London (LHR) - Buenos Aires (AEP)

£1,060

£756

One-way

Tue, Sep 1

⌛ Last-Minute

STN - Buenos Aires

London (STN) - Buenos Aires (EZE)

Ryanair

£1,082

£749

One-way

Mon, Sep 7

⌛ Last-Minute

LHR - Buenos Aires

London (LHR) - Buenos Aires (EZE)

Avianca

£1,053

£736

One-way

Tue, Sep 8

⌛ Last-Minute

LTN - Buenos Aires

London (LTN) - Buenos Aires (EZE)

Aero Services Executive

£941

£735

One-way

Tue, Sep 8

⌛ Last-Minute

LHR - Buenos Aires

London (LHR) - Buenos Aires (EZE)

Avianca

£1,046

£736

One-way

Biggest price drops on these dates for flights from London to Buenos Aires

9 nights

Dec 4 - Dec 13

£1,378 → £750

46%

16 nights

Dec 1 - Dec 17

£1,394 → £792

43%

12 nights

Dec 2 - Dec 14

£1,298 → £763

41%

5 nights

Aug 18 - Aug 23

£1,283 → £751

41%

Popular Airports to fly from London to Buenos Aires