Question 1

What is the cheapest day to depart on your flight to Buenos Aires?

Accepted Answer

The cheapest day to depart on your flight to Buenos Aires is on a Monday when prices can be found for as low as £985. 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 because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,145.

Question 2

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

Accepted Answer

You could potentially save up to 30% on your flight if you consider stops on a London to Buenos Aires flight.

Question 3

Which stopover airport offers the lowest fares from London to Buenos Aires?

Accepted Answer

Flights via Toronto (YYZ) offer the lowest average return price of £639.

Question 4

How often are flights from London to Buenos Aires delayed?

Accepted Answer

Historically, on average around 0% of flights between London and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

Question 5

How many flights depart from London to Buenos Aires on average per day?

Accepted Answer

As of January 2026, 3 flights take off from London and land in Buenos Aires each day. The most common flight departure time for this route is 22:00, with 100% of daily flights taking off in the evening.

Question 6

How many flights depart from London to Buenos Aires on average per week?

Accepted Answer

The number of flights available between London and Buenos Aires is 21 per week as of January 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Question 7

What cabin class options are available on London to Buenos Aires flights?

Accepted Answer

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

Question 8

Which stopover airport has the shortest connection time from London to Buenos Aires?

Accepted Answer

Frankfurt am Main (FRA) has the shortest average stopover time for this route: 1h 28m.

Question 9

Which airlines fly to Buenos Aires?

Accepted Answer

British Airways, Iberia and Lufthansa are the top three most popular airlines that fly to Buenos Aires from London according to our data. British Airways is the first choice among our users, with 34% of people opting to fly with this airline when travelling to Buenos Aires. Keep in mind that there are 9 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

Question 10

Which stopover airport has the shortest travel time from London to Buenos Aires?

Accepted Answer

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 16h 26m.

Question 11

What is the cheapest London to Buenos Aires flight route?

Accepted Answer

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

Question 12

Which airport is the most popular for stopovers for flights between London and Buenos Aires?

Accepted Answer

Madrid (MAD) was the most common stop: 39% of momondo users choosing one-stop flights on this route connected there.

Question 13

What is the typical price of a round-trip flight between London and Buenos Aires?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from £820 to £990.
The lowest price recently found on this route was £813.

Question 14

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 15

How far in advance should I book a flight to Buenos Aires?

Accepted Answer

You are more likely to see cheaper flights to Buenos Aires from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around £1,022 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from London for as low as £855 on momondo.

Question 16

What is the cheapest month to fly to Buenos Aires?

Accepted Answer

In general, September is the cheapest month to fly from London to Buenos Aires. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £861. If you don’t want to visit Buenos Aires in September, then you should wait until May to fly from London, when ticket prices are also cheap, with an average price of £880.

Question 17

What is the cheapest airline that flies from London to Buenos Aires?

Accepted Answer

United Airlines, Lufthansa, and SWISS are the most popular carriers operating from London to Buenos Aires

Question 18

What is the most punctual flight time for London to Buenos Aires flights?

Accepted Answer

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Question 19

How have London to Buenos Aires flight prices changed over time?

Accepted Answer

As of January 2026, prices for London to Buenos Aires flights are approximately 29% more expensive when compared to flights at the same time last year.

Question 20

Which airlines fly direct from London to Buenos Aires?

Accepted Answer

You can take direct flights from London to Buenos Aires with one airline, but there are also lots of indirect routes with other airlines too. British Airways offers one-way flights from London to Buenos Aires which take approximately 15 hours and 55 minutes, which is one of the more convenient ways to complete this journey. You can also get cheap flights from London to Buenos Aires with Iberia, which tend to take approximately 15 hours and 45 minutes. These require one stop along the way, most commonly at Madrid Airport (MAD). You can also take London to Buenos Aires flights with KLM in around 16 hours and five minutes. The most likely stopover on this route is at Amsterdam Airport Schiphol (AMS). No matter which route your decide to take, you will be able to fly between these two cities with ease when booking through momondo.

What is the best way to get to and from airports in London to Buenos Aires?

You can easily get to London airports ahead of your flight to Buenos Aires, which makes it a great city to depart from. For example, you can get to London Heathrow Airport (LHR) easily using the Heathrow Express, which takes around 15 minutes from Paddington train station. Similarly, if you are travelling to Gatwick Airport then you can take the Gatwick Express in about 30 minutes from London Victoria train station. For those that are departing from London City Airport then you can reach the terminal from Bank Underground station using the DLR in about 21 minutes. From Ezeiza Airport (EZE) one of the fastest ways to reach the centre of Buenos Aires is by taxi, which takes approximately 40 minutes from the front of the terminal building. Whereas if you were travelling from Jorge Newbery Airport (AEP) to the centre of Buenos Aires, then you could take the number 33 or 45 bus, which take around 43 minutes in total to complete the journey.

What are the benefits of the different airports in London to Buenos Aires?

No matter which airport you depart from in London, you will be able to reach it with ease. Should you be departing from Heathrow Airport (LHR), Gatwick Airport (LGW) or London City Airport (LCY), you will be able to take advantage of a hotel the night before your departure so that you are not in a rush the next morning. At LHR and LGW you can also utilise fast track services and lounges before you leave. Whilst this isn’t possible at LCY, it is a good airport to leave from if you are travelling on business as it’s so close to the financial district in London. All the airports have a good selection of currency exchange, food outlets and shops to keep you occupied before take-off too. You will find that there is a larger selection of flights to Ezeiza Airport (EZE) than that of Jorge Newbery Airport (AEP) as this is where most long-haul flights go to in Buenos Aires. As a result, there are also more facilities there for you to access on arrival. That being said, AEP is closer to the city centre by car, should you want quicker access upon landing, so it has that advantage.

Question 21

Which cities can you reach easily once you arrive at Buenos Aires Airport?

Accepted Answer

From both Ezeiza Airport (EZE) and Jorge Newbery Airport (AEP) you can reach Buenos Aires with ease, but also other parts of the country too. For example, you can reach Campana in about one hour by car or Pergamino in around three hours driving from AEP. If you are arriving to EZE, then you can reach La Plata in about one hour and 20 minutes driving or Canuelas in approximately 35 minutes by car. In general, it is better to drive to other cities if they are close by as this is faster than taking public transport. Therefore, you could hire a car from the airport terminals to get your journey underway. Alternatively if you are travelling further afield then you might want to consider an internal flight as this will be a convenient way to travel.

Question 22

When did momondo last update prices for flights from London to Buenos Aires?

Accepted Answer

Prices for flights from London to Buenos Aires are refreshed on a daily basis.

Question 23

How many operators does momondo search for flights from London to Buenos Aires?

Accepted Answer

There are 9 operators available for flights from London to Buenos Aires as of January 2026.

Question 24

How old do you have to be to fly from London to Buenos Aires?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Buenos Aires.

Question 25

What documentation or ID do you need to fly to Buenos Aires?

Accepted Answer

The required travel and health documents for your Buenos Aires trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best price found	£960
Fastest flight time	16h 00m
Direct flights	Every day
Airports in Buenos Aires	2 airports

Airline	Rating	Free Cancellation	Price
Avianca	PriceFrom £695	Free Cancellation	Rating 6.6 2,497 reviews	Search Avianca flights
Air Europa	PriceFrom £705	Free Cancellation	Rating 7.0 580 reviews	Search Air Europa flights
Iberia	PriceFrom £713	Free Cancellation	Rating 7.0 3,074 reviews	Search Iberia flights
Finnair	PriceFrom £748	Free Cancellation	Rating 7.6 1,345 reviews	Search Finnair flights
Air France	PriceFrom £762	Free Cancellation	Rating 7.4 1,519 reviews	Search Air France flights
British Airways	PriceFrom £799	Free Cancellation	Rating 6.7 7,655 reviews	Search British Airways flights
American Airlines	PriceFrom £861	Free Cancellation	Rating 7.2 11,090 reviews	Search American Airlines flights
Lufthansa	PriceFrom £884	Free Cancellation	Rating 6.8 7,691 reviews	Search Lufthansa flights
LATAM Airlines	PriceFrom £898	Free Cancellation	Rating 7.5 1,897 reviews	Search LATAM Airlines flights

Cheap flights from London to Buenos Aires from £449

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 25/3. 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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How to get the cheapest flight ticket from London to Buenos Aires

What is the typical price of a round-trip flight between London and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

What is the cheapest day to depart on your flight to Buenos Aires?

What is the cheapest London to Buenos Aires flight route?

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

How far in advance should I book a flight to Buenos Aires?

What cabin class options are available on London to Buenos Aires flights?

There are 2 cabin classes available to choose from on London to Buenos Aires 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 to Buenos Aires flights?

You could potentially save up to 30% on your flight if you consider stops on a London to Buenos Aires flight.

How have London to Buenos Aires flight prices changed over time?

As of January 2026, prices for London to Buenos Aires flights are approximately 29% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from London to Buenos Aires?

United Airlines, Lufthansa, and SWISS are the most popular carriers operating from London to Buenos Aires

Which airlines fly to Buenos Aires?

How often are flights from London to Buenos Aires delayed?

Historically, on average around 0% of flights between London and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

What is the most punctual flight time for London to Buenos Aires flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airport is the most popular for stopovers for flights between London and Buenos Aires?

Madrid (MAD) was the most common stop: 39% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London to Buenos Aires?

Flights via Toronto (YYZ) offer the lowest average return price of £639.

Which stopover airport has the shortest travel time from London to Buenos Aires?

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 16h 26m.

Which stopover airport has the shortest connection time from London to Buenos Aires?

Frankfurt am Main (FRA) has the shortest average stopover time for this route: 1h 28m.

How many flights depart from London to Buenos Aires on average per day?

As of January 2026, 3 flights take off from London and land in Buenos Aires each day. The most common flight departure time for this route is 22:00, with 100% of daily flights taking off in the evening.

How many flights depart from London to Buenos Aires on average per week?

The number of flights available between London and Buenos Aires is 21 per week as of January 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

When to book flights from London to Buenos Aires

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