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Cheap flights from South America to London from £273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South America to London departing on 5/11. 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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Cheap return flights

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Multiple Airlines Logo
20:40 - 16:35GRU-LHR
16h 55m1 stop
Multiple Airlines Logo
06:20 - 18:25LHR-GRU
15h 05m1 stop
£514Multiple Airlines
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Mon, 24 Nov - Mon, 1 Dec
Avianca Logo
02:40 - 14:35GRU-LHR
32h 55m1 stop
Avianca Logo
21:40 - 01:35LHR-GRU
30h 55m1 stop
£517Avianca
Find Deal
Mon, 10 Nov - Tue, 18 Nov
Avianca Logo
17:25 - 14:35GRU-LHR
18h 10m1 stop
Avianca Logo
21:40 - 16:15LHR-GRU
21h 35m1 stop
£517Avianca
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Wed, 18 Feb - Wed, 18 Mar
Avianca Logo
02:40 - 14:35GRU-LHR
32h 55m1 stop
Avianca Logo
21:40 - 16:15LHR-GRU
21h 35m1 stop
£518Avianca
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Wed, 25 Feb - Mon, 2 Mar
TAP AIR PORTUGAL Logo
01:35 - 21:35GRU-LHR
17h 00m1 stop
TAP AIR PORTUGAL Logo
06:00 - 19:55LHR-GRU
16h 55m1 stop
£539TAP AIR PORTUGAL
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Sun, 15 Mar - Mon, 23 Mar
TAP AIR PORTUGAL Logo
01:35 - 22:40GRU-LHR
18h 05m1 stop
TAP AIR PORTUGAL Logo
08:15 - 19:55LHR-GRU
14h 40m1 stop
£549TAP AIR PORTUGAL
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Sun, 8 Mar - Mon, 16 Mar
LATAM Airlines Logo
15:15 - 14:05SDU-LHR
19h 50m2 stops
LATAM Airlines Logo
20:15 - 09:25LHR-SDU
16h 10m1 stop
£636LATAM Airlines
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Sun, 8 Mar - Mon, 23 Mar
LATAM Airlines Logo
13:40 - 14:05SDU-LHR
21h 25m2 stops
LATAM Airlines Logo
20:15 - 14:25LHR-SDU
21h 10m2 stops
£637LATAM Airlines
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Mon, 22 Dec - Thu, 8 Jan
British Airways Logo
23:55 - 18:50SCL-LHR
15h 55m1 stop
British Airways Logo
22:15 - 09:50LHR-SCL
14h 35mdirect
£696British Airways
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Mon, 1 Dec - Mon, 9 Mar
Iberia Logo
20:50 - 17:15LIM-LHR
15h 25m1 stop
Iberia Logo
19:05 - 06:30LHR-LIM
16h 25m1 stop
£823Iberia
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Wed, 3 Dec - Tue, 17 Feb

British Airways flights from South America to London Heathrow Airport

Our best British Airways deals on South America to London Heathrow Airport flight tickets
British Airways
1 Dec
SCL23:55Santiago Arturo Merino Benitez
15h 55m
1 stop
LHR18:50London Heathrow
9 Mar
LHR22:15London Heathrow
14h 35m
SCL09:50Santiago Arturo Merino Benitez
£696
Find similar
British Airways
4 Nov
SCL13:05Santiago Arturo Merino Benitez
14h 20m
LHR06:25London Heathrow
20 Nov
LHR22:15London Heathrow
14h 35m
SCL09:50Santiago Arturo Merino Benitez
£748
Find similar

LATAM Airlines flights from South America to London Heathrow Airport

Our best LATAM Airlines deals on South America to London Heathrow Airport flight tickets
LATAM Airlines
8 Mar
SDU15:15Rio de Janeiro Santos Dumont
19h 50m
2 stops
LHR14:05London Heathrow
23 Mar
LHR20:15London Heathrow
16h 10m
1 stop
SDU09:25Rio de Janeiro Santos Dumont
£636
Find similar
LATAM Airlines
22 Dec
SDU13:40Rio de Janeiro Santos Dumont
21h 25m
2 stops
LHR14:05London Heathrow
8 Jan
LHR20:15London Heathrow
21h 10m
2 stops
SDU14:25Rio de Janeiro Santos Dumont
£637
Find similar
LATAM Airlines
10 Nov
SDU20:05Rio de Janeiro Santos Dumont
15h 00m
1 stop
LHR14:05London Heathrow
24 Nov
LHR20:15London Heathrow
20h 00m
1 stop
SDU13:15Rio de Janeiro Santos Dumont
£676
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momondo Fare Finder

 
Customise your flight search to find flights from South America to London Heathrow 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 22 October 2025.
Use the filters below to find and compare flights from South America to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Mon 24/11

20:40-16:35

1 stop16h 55m

London Heathrow

Mon 1/12

06:20-18:25

1 stop15h 05m

£514

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Mon 10/11

02:40-14:35

1 stop32h 55m

London Heathrow

Tue 18/11

21:40-01:35

1 stop30h 55m

£517

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Wed 18/2

17:25-14:35

1 stop18h 10m

London Heathrow

Wed 18/3

21:40-16:15

1 stop21h 35m

£517

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Wed 25/2

02:40-14:35

1 stop32h 55m

London Heathrow

Mon 2/3

21:40-16:15

1 stop21h 35m

£518

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Sun 15/3

01:35-21:35

1 stop17h 00m

London Heathrow

Mon 23/3

06:00-19:55

1 stop16h 55m

£539

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Sun 8/3

01:35-22:40

1 stop18h 05m

London Heathrow

Mon 16/3

08:15-19:55

1 stop14h 40m

£549

Rio de JaneiroLondon

SDU - LHR

SDULHR

Rio de Janeiro Santos Dumont

Sun 8/3

15:15-14:05

2 stops19h 50m

London Heathrow

Mon 23/3

20:15-09:25

1 stop16h 10m

£636

Rio de JaneiroLondon

SDU - LHR

SDULHR

Rio de Janeiro Santos Dumont

Mon 22/12

13:40-14:05

2 stops21h 25m

London Heathrow

Thu 8/1

20:15-14:25

2 stops21h 10m

£637

SantiagoLondon

SCL - LHR

SCLLHR

Santiago Arturo Merino Benitez

Mon 1/12

23:55-18:50

1 stop15h 55m

London Heathrow

Mon 9/3

22:15-09:50

Nonstop14h 35m

£696

LimaLondon

LIM - LHR

LIMLHR

Lima J Chavez Intl

Wed 3/12

20:50-17:15

1 stop15h 25m

London Heathrow

Tue 17/2

19:05-06:30

1 stop16h 25m

£823

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from South America to London Heathrow 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

What is the cheapest month to fly to London Heathrow Airport?

In general, March is the cheapest month to fly from South America to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £667. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from South America averaging around £725.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from South America is on a Monday. momondo users have found tickets for Monday departures for as low as £858. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Friday is £1,009.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from South America to London Heathrow Airport in the morning for as low as £675. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £896 on average. Flights to London Heathrow Airport from South America in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest South America to London Heathrow flight route?

Fly from Sao Paulo Guarulhos Intl to London Heathrow for the best South America - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from South America when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £830 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from South America for as low as £742 on momondo.

What cabin class options are available on South America to London Heathrow flights?

There are 3 cabin classes available to choose from on South America to London Heathrow 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 South America to London Heathrow Airport flights?

You could potentially save up to 14% on your flight if you consider stops on a South America to London Heathrow Airport flight.

Cheap South America to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South America to London Heathrow Airport

Best price found

£319

Fastest flight time

10h 10m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from South America in the past 72 hours is £319. The best return flight deal from South America to London Heathrow Airport found on momondo in the last 72 hours is £678.
The fastest flight from South America to London Heathrow Airport takes 10h 10m
Direct flights go from South America to London Heathrow Airport every day.
Search flight deals

  • When did momondo last update prices for flights from South America to London Heathrow Airport?

    Prices for flights from South America to London Heathrow Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from South America to London Heathrow Airport?

  • How old do you have to be to fly from South America to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from South America to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from South America to London Heathrow Airport?

Best airlines flying from South America to London Heathrow Airport

Compare and see reviews for airlines that fly from South America to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom £448Free CancellationRating
6.8
7,514 reviews
Search Lufthansa flights
Air FrancePriceFrom £521Free CancellationRating
7.4
1,477 reviews
Search Air France flights
LATAM AirlinesPriceFrom £538Free CancellationRating
7.5
1,870 reviews
Search LATAM Airlines flights
TAP AIR PORTUGALPriceFrom £538Free CancellationRating
7.1
2,030 reviews
Search TAP AIR PORTUGAL flights
GOLPriceFrom £540Free CancellationRating
7.3
1,117 reviews
Search GOL flights
British AirwaysPriceFrom £562Free CancellationRating
6.7
7,467 reviews
Search British Airways flights
AviancaPriceFrom £562Free CancellationRating
6.6
2,460 reviews
Search Avianca flights
IberiaPriceFrom £601Free CancellationRating
7.0
2,997 reviews
Search Iberia flights
KLMPriceFrom £675Free CancellationRating
7.7
1,404 reviews
Search KLM flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Ipswich
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Poole
Swanage
Colchester
Dover
Hayes
Chelmsford

Why use momondo?

Why should I use momondo to find a flight deal from South America to London?

It is quick and easy to find South America to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from South America to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from South America with this policy.

How can momondo help me find flights from South America to London?

Once you have performed a search for South America to London 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 South America to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for South America to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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