How long is the flight from London Heathrow Airport to South America?

Airlines like Avianca, British Airways, and KLM fly from London Heathrow Airport to South America in about 11h. The time it takes to get you to your destination can typically vary by up to 12h 40m. Airlines will cover a distance of 5262 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to fly from London Heathrow Airport to South America one-way?

One-way options have recently been found by users for as low as £301 on Iberia. Other airlines that offer cheap prices include Avianca from £309 and Aeromexico from £325 one-way.

In terms of precipitation, rainfall in South America ranges from 20.0 - 240.0 inches per month. January is typically the wettest month, when rainfall can reach 240.0 mm. July is typically the driest time to visit South America when rainfall is around 20.0 mm.

If weather is an important factor for your trip to South America, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 17.0 C).

What are the most popular routes from London Heathrow Airport to South America?

While some choose either London Heathrow - Rio de Janeiro–Galeão Intl or London Heathrow - Buenos Aires Ministro Pistarini, London Heathrow - Sao Paulo Guarulhos Intl is the most popular route from London Heathrow Airport to South America.

What are the cheapest flights from London Heathrow Airport to South America?

While on average a flight from London Heathrow Airport to South America is generally £729, our data shows the cheapest flight currently is £479. When looking at the most popular route, (London Heathrow - Sao Paulo Guarulhos Intl), you can expect to pay £652 for that flight.

What are the most reliable airlines from London Heathrow Airport to South America?

Before booking your flight to South America from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Etihad Airways (100%), Avianca (100%), Emirates( 100%).

What are the most popular airlines that fly from London Heathrow Airport to South America?

When booking a flight from London Heathrow Airport to South America, you may want to consider flying on LATAM Airlines, Avianca or British Airways as they are the most popular for this route.

Can I find deals for flights from Heathrow to South America that include hotel bookings?

Yes. In addition to deals on Heathrow to South America flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to South America?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to South America.

Can I find deals for business class flights from Heathrow to South America?

Yes. Cheapflights offers flight deals from Heathrow to South America by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£398+ Cheap Flights from London Heathrow Airport to South America

Cheap flight deals from Heathrow to South America

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Heathrow to South America
Explore the most affordable flight options available from Heathrow to South America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 October 2026.

Mon 2/1121:35 -

1 stop33h 15m

Sat 21/1101:50 -

1 stop31h 45m

Deal found 19/10£665

Wed 4/1121:35 -

2 stops35h 05m

Sun 15/1117:55 -

1 stop15h 40m

Deal found 16/10£665

Sat 31/1021:35 -

1 stop32h 25m

Thu 19/1102:55 -

1 stop30h 40m

Deal found 18/10£666

Thu 19/1121:35 -

2 stops35h 05m

Thu 26/1102:55 -

1 stop30h 40m

Deal found 17/10£667

Wed 4/1121:35 -

2 stops35h 05m

Sat 7/1107:25 -

1 stop26h 10m

Deal found 17/10£668

Mon 2/1121:35 -

1 stop33h 15m

Mon 23/1103:05 -

2 stops30h 30m

Deal found 19/10£670

Sun 6/1213:00 -

1 stop19h 15m

Sun 13/1208:00 -

2 stops42h 10m

Deal found 14/10£671

Mon 16/1121:35 -

2 stops35h 05m

Wed 25/1103:05 -

2 stops30h 30m

Deal found 17/10£671

Tue 1/1220:05 -

2 stops36h 10m

Wed 9/1208:00 -

2 stops32h 00m

Deal found 17/10£672

Sun 15/1113:00 -

1 stop19h 15m

Sun 22/1108:00 -

2 stops32h 00m

Deal found 16/10£673

Sat 31/1021:35 -

2 stops35h 05m

Tue 3/1102:55 -

1 stop30h 40m

Deal found 15/10£674

Thu 26/1116:30 -

3 stops30h 40m

Thu 10/1219:20 -

3 stops35h 05m

Deal found 16/10£674

Best flights from Heathrow to South America
Discover carefully curated flight deals from Heathrow to South America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 October 2026.

Sun 8/1121:35 -

Nonstop11h 00m

Sun 22/1123:25 -

Nonstop10h 10m

Deal found 17/10£711

Sat 23/111:25 -

1 stop23h 40m

Tue 9/207:00 -

1 stop18h 45m

Deal found 16/10£766

Thu 26/1106:30 -

2 stops19h 40m

Fri 11/1220:45 -

1 stop14h 40m

Deal found 14/10£806

Mon 16/1116:00 -

1 stop27h 25m

Wed 18/1121:35 -

1 stop15h 45m

Deal found 18/10£832

Thu 26/1108:30 -

1 stop15h 55m

Sun 6/1223:15 -

1 stop13h 30m

Deal found 19/10£854

Thu 26/1110:30 -

1 stop23h 10m

Fri 11/1215:35 -

1 stop15h 05m

Deal found 17/10£859

Wed 10/306:00 -

2 stops31h 25m

Tue 30/323:50 -

2 stops35h 55m

Deal found 18/10£912

Wed 2/1216:20 -

2 stops43h 30m

Sun 6/1222:45 -

1 stop29h 55m

Deal found 15/10£924

Tue 16/216:10 -

2 stops30h 05m

Fri 26/217:05 -

3 stops48h 25m

Deal found 19/10£975

Sun 1/1109:50 -

2 stops26h 45m

Mon 30/1121:15 -

2 stops30h 35m

Deal found 14/10£980

Thu 29/1020:15 -

1 stop25h 45m

Sat 21/1105:05 -

1 stop30h 00m

Deal found 16/10£995

Mon 16/1120:05 -

2 stops28h 20m

Wed 18/1121:10 -

2 stops15h 40m

Deal found 18/10£1,015

Sat 7/1121:35 -

2 stops35h 05m

Thu 26/1103:05 -

2 stops30h 30m

Deal found 18/10£729

Thu 26/1121:35 -

1 stop30h 30m

Fri 11/1207:30 -

1 stop28h 05m

Deal found 18/10£772

Tue 1/1214:30 -

1 stop19h 44m

Tue 29/1221:05 -

1 stop18h 35m

Deal found 16/10£863

Sat 31/1012:15 -

3 stops30h 51m

Sat 7/1122:30 -

3 stops31h 20m

Deal found 14/10£883

Sat 5/1214:05 -

2 stops29h 20m

Mon 21/1216:05 -

2 stops19h 55m

Deal found 18/10£887

Tue 1/1216:30 -

1 stop29h 10m

Sat 12/1215:45 -

1 stop14h 55m

Deal found 19/10£917

Fri 12/206:00 -

2 stops21h 00m

Sat 20/220:10 -

1 stop32h 20m

Deal found 15/10£937

Mon 9/1114:30 -

1 stop19h 45m

Sun 22/1121:05 -

1 stop16h 10m

Deal found 17/10£867

Fri 30/1010:00 -

1 stop18h 30m

Fri 6/1101:35 -

1 stop25h 05m

Deal found 15/10£962

Fri 19/216:30 -

2 stops36h 05m

Mon 26/411:10 -

3 stops29h 15m

Deal found 14/10£976

Mon 9/1109:40 -

2 stops27h 15m

Fri 20/1123:45 -

2 stops28h 30m

Deal found 16/10£982

Tue 1/1220:25 -

1 stop24h 55m

Wed 9/1217:40 -

2 stops18h 20m

Deal found 17/10£897

Fri 20/1106:30 -

2 stops20h 05m

Fri 4/1211:35 -

2 stops27h 45m

Deal found 14/10£935

Mon 2/1106:00 -

2 stops18h 25m

Tue 3/1123:15 -

2 stops17h 25m

Deal found 15/10£1,040

Thu 29/1010:00 -

1 stop18h 30m

Mon 9/1101:35 -

2 stops23h 20m

Deal found 15/10£962

Wed 20/122:40 -

2 stops30h 15m

Mon 1/310:10 -

3 stops31h 20m

Deal found 14/10£1,003

Thu 1/408:00 -

2 stops31h 10m

Sun 2/520:00 -

1 stop31h 30m

Deal found 19/10£1,003

Sat 23/117:25 -

1 stop18h 55m

Fri 12/213:15 -

Nonstop14h 20m

Deal found 17/10£914

Find flight deals from Heathrow to South America

Round-trip from	£660
One-way from	£398
Popular in	July
Cheapest in	February
Average price	£898
Good round-trip deal	£752 or less
Good one-way deal	£498 or less

Avianca
9/11-21/11
4 total stops
65h 35m total
London to South America

Search Deals

17/11-31/12
2 total stops
38h 15m total
London to South America

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£102 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from London Heathrow to South America.

Search Deals

Price to beat on a one-way flight from London Heathrow to South America.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to South America that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonCali

LHR London Heathrow - CLO Cali Alfonso B. Aragon Intl

LHRCLO

London Heathrow

Thu 19/11

22:30-18:30

1 stop25h 00m

Cali Alfonso B. Aragon Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£420

LondonMedellín

LHR London Heathrow - MDE Medellín Jose Maria Cordova Intl

LHRMDE

London Heathrow

Fri 20/11

19:55-05:35

3 stops38h 40m

Medellín Jose Maria Cordova Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£448

LondonCali

LHR London Heathrow - CLO Cali Alfonso B. Aragon Intl

LHRCLO

London Heathrow

Fri 13/11

20:50-17:32

3 stops49h 42m

Cali Alfonso B. Aragon Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£459

LondonMedellín

LHR London Heathrow - MDE Medellín Jose Maria Cordova Intl

LHRMDE

London Heathrow

Sat 30/1

18:45-22:49

2 stops33h 04m

Medellín Jose Maria Cordova Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£464

LondonMedellín

LHR London Heathrow - MDE Medellín Jose Maria Cordova Intl

LHRMDE

London Heathrow

Wed 28/10

16:15-19:40

3 stops56h 25m

Medellín Jose Maria Cordova Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£473

LondonMedellín

LHR London Heathrow - MDE Medellín Jose Maria Cordova Intl

LHRMDE

London Heathrow

Tue 17/11

08:15-10:55

3 stops31h 40m

Medellín Jose Maria Cordova Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£479

LondonRio de Janeiro

LHR London Heathrow - GIG Rio de Janeiro–Galeão Intl

LHRGIG

London Heathrow

Tue 27/10

21:35-00:30

1 stop29h 55m

Rio de Janeiro–Galeão Intl

Wed 31/12

00:00-04:00

Nonstop0h 00m

£489

LondonCali

LHR London Heathrow - CLO Cali Alfonso B. Aragon Intl

LHRCLO

London Heathrow

Mon 16/11

09:15-06:09

3 stops49h 54m

Cali Alfonso B. Aragon Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£504

LondonLima

LHR London Heathrow - LIM Lima J Chavez Intl

LHRLIM

London Heathrow

Fri 27/11

21:35-03:40

2 stops35h 05m

Lima J Chavez Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£527

LondonLima

LHR London Heathrow - LIM Lima J Chavez Intl

LHRLIM

London Heathrow

Sat 31/10

21:35-01:00

1 stop32h 25m

Lima J Chavez Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£542

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Heathrow to South America

Have a flexible travel schedule? Discover the best time to fly to South America from Heathrow with our price prediction graph.

LHR-LIM

LHR-BOG

LHR-GIG

LHR-MDE

LHR-SCL

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to South America

LHR-0SA

LHR-LIM

LHR-BOG

LHR-GIG

LHR-MDE

What is the cheapest month to book a flight from London Heathrow Airport to South America?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to South America (average of £822). Flying from London Heathrow Airport to South America in December is currently the most expensive (average of £1,231). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to SA?

When flying from London Heathrow Airport to South America, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to South America

The most flights from LHR to 0SA are scheduled on a Monday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

How often are flights from London to South America delayed?

About 12% of weekly flights between London and South America have experienced delays in the past year, with the average delay time being 88 minutes.

What is the most punctual flight time for London to South America flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

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

Saturday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to South America flights?

Over the past year, Avianca have had the lowest number of delays on this route, with just 7% of flights being delayed.

How far ahead should I book a flight from London Heathrow Airport to South America?

The price you pay for your flight from London Heathrow Airport to South America may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing South America

Read reviews from past customers who have flown with Virgin Atlantic,LATAM Airlines, andTAP AIR PORTUGAL from London Heathrow Airport to South America. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Virgin Atlantic

7.5

Good

696 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Virgin Atlantic

7.5

Good

696 reviews

Virgin Atlantic

7.5

Good

696 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

LATAM Airlines

7.4

Good

1,974 reviews

Virgin Atlantic

7.5

Good

696 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

TAP AIR PORTUGAL

7.2

Good

2,381 reviews

Virgin Atlantic

7.5

Good

696 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

British Airways

6.7

Okay

8,265 reviews

Virgin Atlantic

7.5

Good

696 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Avianca

6.5

Okay

2,554 reviews

Virgin Atlantic

7.5

Good

696 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

How long is the flight from London Heathrow Airport to South America?
Airlines like Avianca, British Airways, and KLM fly from London Heathrow Airport to South America in about 11h. The time it takes to get you to your destination can typically vary by up to 12h 40m. Airlines will cover a distance of 5262 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from London Heathrow Airport to South America one-way?
One-way options have recently been found by users for as low as £301 on Iberia. Other airlines that offer cheap prices include Avianca from £309 and Aeromexico from £325 one-way.
What are the most popular routes from London Heathrow Airport to South America?
While some choose either London Heathrow - Rio de Janeiro–Galeão Intl or London Heathrow - Buenos Aires Ministro Pistarini, London Heathrow - Sao Paulo Guarulhos Intl is the most popular route from London Heathrow Airport to South America.
What are the most reliable airlines from London Heathrow Airport to South America?
Before booking your flight to South America from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Etihad Airways (100%), Avianca (100%), Emirates( 100%).
What are the cheapest flights from London Heathrow Airport to South America?
While on average a flight from London Heathrow Airport to South America is generally £729, our data shows the cheapest flight currently is £479. When looking at the most popular route, (London Heathrow - Sao Paulo Guarulhos Intl), you can expect to pay £652 for that flight.
Can I find deals for flights from Heathrow to South America that include hotel bookings?
Yes. In addition to deals on Heathrow to South America flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to South America?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to South America.
Can I find deals for business class flights from Heathrow to South America?
Yes. Cheapflights offers flight deals from Heathrow to South America by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to South America?
Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to South America (average of £822). Flying from London Heathrow Airport to South America in December is currently the most expensive (average of £1,231). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from Heathrow to South America

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£81	Average£985	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Iberia	Cheapest£149	Average£961	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Air Europa	Cheapest£339	Average£798	FlexibilityNo cancel fee	On-time83%	Search Air Europa flights
Avianca	Cheapest£396	Average£803	FlexibilityNo cancel fee	On-time71%	Search Avianca flights
JetBlue	Cheapest£535	Average£623	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Turkish Airlines	Cheapest£567	Average£702	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
Air Canada	Cheapest£574	Average£769	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
TAP AIR PORTUGAL	Cheapest£578	Average£959	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
ITA Airways	Cheapest£606	Average£1,120	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
KLM	Cheapest£608	Average£982	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to South America?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to South America. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to South America?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to South America for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Heathrow to South America with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to South America with no change fees.

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Cheap flights from London Heathrow Airport to South America from £398

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to South America

Cheapest flights from Heathrow to South AmericaExplore the most affordable flight options available from Heathrow to South America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 October 2026.

Explore the most affordable flight options available from Heathrow to South America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 October 2026.

Best flights from Heathrow to South AmericaDiscover carefully curated flight deals from Heathrow to South America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 October 2026.

Discover carefully curated flight deals from Heathrow to South America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 October 2026.

Direct flights from Heathrow to South AmericaExplore direct flight options from Heathrow to South America based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 October 2026.

Explore direct flight options from Heathrow to South America based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 October 2026.

Last-minute flights from Heathrow to South AmericaDiscover last-minute flight deals from Heathrow to South America. Data last updated 19 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to South America. Data last updated 19 October 2026 and is based on user searches.

One-way flights from Heathrow to South AmericaSearch for one-way flight options from Heathrow to South America. Find affordable one-way fares based on user searches. Data last updated 19 October 2026.

Search for one-way flight options from Heathrow to South America. Find affordable one-way fares based on user searches. Data last updated 19 October 2026.

Find flight deals from Heathrow to South America

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to South America that are best for you.

Best time to book a flight from Heathrow to South America

Have a flexible travel schedule? Discover the best time to fly to South America from Heathrow with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from London Heathrow Airport to South America?

What is the cheapest time of day to fly from LHR to SA?

Find hourly flight availability from Heathrow to South America. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 October 2026.

When flying from London Heathrow Airport to South America, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to South America

The most flights from LHR to 0SA are scheduled on a Monday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

How often are flights from London to South America delayed?

About 12% of weekly flights between London and South America have experienced delays in the past year, with the average delay time being 88 minutes.

What is the most punctual flight time for London to South America flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

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

Saturday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to South America flights?

Over the past year, Avianca have had the lowest number of delays on this route, with just 7% of flights being delayed.

How far ahead should I book a flight from London Heathrow Airport to South America?

The price you pay for your flight from London Heathrow Airport to South America may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing South America

Related info for your journey

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What are the most popular routes from London Heathrow Airport to South America?

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What are the cheapest flights from London Heathrow Airport to South America?

Can I find deals for flights from Heathrow to South America that include hotel bookings?

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What is the cheapest month to book a flight from London Heathrow Airport to South America?

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Cheapest flights from Heathrow to South America
Explore the most affordable flight options available from Heathrow to South America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 October 2026.

Best flights from Heathrow to South America
Discover carefully curated flight deals from Heathrow to South America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 October 2026.

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