Cheap flights from South America to London from £310

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 24/2. 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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Air Canada Logo
20:00 - 11:20
GIG
-
LHR
36h 20m1 stop
Air Canada Logo
09:00 - 11:05
LHR
-
GIG
29h 05m2 stops
£571Air Canada
Sun, 15 Mar - Thu, 26 Mar
Air Canada Logo
20:00 - 06:30
GIG
-
LHR
31h 30m1 stop
Air Canada Logo
13:25 - 11:05
LHR
-
GIG
48h 40m2 stops
£572Air Canada
Sun, 8 Mar - Wed, 25 Mar
Air Canada Logo
20:00 - 11:20
GIG
-
LHR
36h 20m1 stop
Air Canada Logo
13:25 - 11:05
LHR
-
GIG
48h 40m2 stops
£573Air Canada
Sun, 8 Mar - Wed, 25 Mar
Avianca Logo
07:30 - 14:35
GIG
-
LHR
28h 05m1 stop
Avianca Logo
21:40 - 00:40
LHR
-
GIG
30h 00m1 stop
£582Avianca
Tue, 17 Feb - Thu, 26 Feb
TAP AIR PORTUGAL Logo
20:30 - 18:50
GIG
-
LHR
18h 20m2 stops
TAP AIR PORTUGAL Logo
18:45 - 17:45
LHR
-
GIG
27h 00m1 stop
£588TAP AIR PORTUGAL
Mon, 30 Mar - Wed, 15 Apr
Avianca Logo
07:30 - 14:35
GIG
-
LHR
28h 05m1 stop
Avianca Logo
21:40 - 00:40
LHR
-
GIG
30h 00m1 stop
£595Avianca
Wed, 18 Feb - Wed, 18 Mar
LATAM Airlines Logo
23:55 - 22:10
SCL
-
LHR
19h 15m1 stop
LATAM Airlines Logo
18:45 - 08:50
LHR
-
SCL
17h 05m1 stop
£636LATAM Airlines
Mon, 9 Mar - Mon, 16 Mar
LATAM Airlines Logo
23:55 - 19:00
SCL
-
LGW
16h 05m1 stop
LATAM Airlines Logo
11:45 - 08:50
LGW
-
SCL
24h 05m1 stop
£663LATAM Airlines
Mon, 9 Mar - Mon, 16 Mar
GOL Logo
22:00 - 13:45
CGH
-
LHR
36h 45m2 stops
GOL Logo
09:00 - 11:15
LHR
-
CGH
30h 15m2 stops
£673GOL
Mon, 16 Mar - Tue, 31 Mar
GOL Logo
18:10 - 16:35
CGH
-
LHR
19h 25m2 stops
GOL Logo
06:20 - 06:05
LHR
-
CGH
26h 45m2 stops
£707GOL
Thu, 5 Feb - Fri, 6 Mar

Lufthansa flights from South America to London

Our best Lufthansa deals on South America to London flight tickets
Lufthansa
12 Mar
GIG15:35Rio de Janeiro–Galeão Intl
18h 25m
2 stops
LHR13:00London Heathrow
23 Mar
LHR07:40London Heathrow
30h 05m
2 stops
GIG10:45Rio de Janeiro–Galeão Intl
Lufthansa
16 Mar
GIG15:35Rio de Janeiro–Galeão Intl
20h 10m
2 stops
LHR14:45London Heathrow
25 Mar
LHR07:40London Heathrow
19h 40m
2 stops
GIG00:20Rio de Janeiro–Galeão Intl
Lufthansa
9 Mar
GIG15:40Rio de Janeiro–Galeão Intl
14h 05m
1 stop
LHR08:45London Heathrow
18 Mar
LHR17:30London Heathrow
15h 30m
1 stop
GIG06:00Rio de Janeiro–Galeão Intl

Avianca flights from South America to London

Our best Avianca deals on South America to London flight tickets
Avianca
17 Feb
GIG07:30Rio de Janeiro–Galeão Intl
28h 05m
1 stop
LHR14:35London Heathrow
3 Mar
LHR21:40London Heathrow
35h 45m
1 stop
GIG06:25Rio de Janeiro–Galeão Intl
Avianca
29 Mar
GRU04:10Sao Paulo Guarulhos Intl
31h 25m
1 stop
LHR15:35London Heathrow
6 Apr
LHR22:05London Heathrow
32h 05m
1 stop
GRU02:10Sao Paulo Guarulhos Intl
Avianca
17 Feb
GIG07:30Rio de Janeiro–Galeão Intl
28h 05m
1 stop
LHR14:35London Heathrow
25 Feb
LHR21:40London Heathrow
30h 00m
1 stop
GIG00:40Rio de Janeiro–Galeão Intl

momondo Fare Finder

 
Customise your flight search to find flights from South America to London 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 15 December 2025.
Use the filters below to find and compare flights from South America to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Sun 15/3

20:00-11:20

1 stop36h 20m

London Heathrow

Thu 26/3

09:00-11:05

2 stops29h 05m

£571

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Sun 8/3

20:00-06:30

1 stop31h 30m

London Heathrow

Wed 25/3

13:25-11:05

2 stops48h 40m

£572

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Sun 8/3

20:00-11:20

1 stop36h 20m

London Heathrow

Wed 25/3

13:25-11:05

2 stops48h 40m

£573

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Tue 17/2

07:30-14:35

1 stop28h 05m

London Heathrow

Thu 26/2

21:40-00:40

1 stop30h 00m

£582

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Mon 30/3

20:30-18:50

2 stops18h 20m

London Heathrow

Wed 15/4

18:45-17:45

1 stop27h 00m

£588

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Wed 18/2

07:30-14:35

1 stop28h 05m

London Heathrow

Wed 18/3

21:40-00:40

1 stop30h 00m

£595

SantiagoLondon

SCL - LHR

SCLLHR

Santiago Arturo Merino Benitez

Mon 9/3

23:55-22:10

1 stop19h 15m

London Heathrow

Mon 16/3

18:45-08:50

1 stop17h 05m

£636

SantiagoLondon

SCL - LGW

SCLLGW

Santiago Arturo Merino Benitez

Mon 9/3

23:55-19:00

1 stop16h 05m

London Gatwick

Mon 16/3

11:45-08:50

1 stop24h 05m

£663

Sao PauloLondon

CGH - LHR

CGHLHR

Sao Paulo Congonhas

Mon 16/3

22:00-13:45

2 stops36h 45m

London Heathrow

Tue 31/3

09:00-11:15

2 stops30h 15m

£673

Sao PauloLondon

CGH - LHR

CGHLHR

Sao Paulo Congonhas

Thu 5/2

18:10-16:35

2 stops19h 25m

London Heathrow

Fri 6/3

06:20-06:05

2 stops26h 45m

£707

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

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?

The cheapest month to fly to London from South America is in March. Flight prices, which tend to average around £669, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from South America averaging around £673.

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

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £876. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from South America to London for around £1,022.

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

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as £671. Flights in the evening are often more expensive, with an average ticket price of £922.

What is the cheapest South America to London flight route?

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

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

You are more likely to see cheaper flights to London from South America when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £815 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from South America for as low as £763 on momondo.

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

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

You could potentially save up to 37% on your flight if you consider stops on a South America to London flight.

Cheap South America to London flight deals and tips

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

Best price found

£300

Fastest flight time

0h 00m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in London

6 airports
The best one-way flight to London from South America in the past 72 hours is £300. The best return flight deal from South America to London found on momondo in the last 72 hours is £612.
The fastest flight from South America to London takes 0h 00m
Direct flights go from South America to London on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. Airlines offering direct flights are: Avianca and British Airways..
There are 6 airports in London. From South America there are direct flights to London Heathrow (LHR).
  • When did momondo last update prices for flights from South America to London?

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

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

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

    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.

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

    The necessary travel and health documents for your London 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?

Best airlines flying from South America to London

Compare and see reviews for airlines that fly from South America to London with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom £519Free CancellationRating
7.4
1,506 reviews
Search Air France flights
LufthansaPriceFrom £528Free CancellationRating
6.8
7,631 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom £538Free CancellationRating
7.2
2,090 reviews
Search TAP AIR PORTUGAL flights
GOLPriceFrom £539Free CancellationRating
7.3
1,131 reviews
Search GOL flights
IberiaPriceFrom £600Free CancellationRating
7.0
3,052 reviews
Search Iberia flights
British AirwaysPriceFrom £602Free CancellationRating
6.7
7,580 reviews
Search British Airways flights
LATAM AirlinesPriceFrom £615Free CancellationRating
7.5
1,891 reviews
Search LATAM Airlines flights
AviancaPriceFrom £638Free CancellationRating
6.6
2,484 reviews
Search Avianca flights
Air CanadaPriceFrom £669Free CancellationRating
7.1
10,527 reviews
Search Air Canada flights
KLMPriceFrom £695Free CancellationRating
7.7
1,430 reviews
Search KLM flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Hayes
Chelmsford
Dover
Worthing
Colchester
Bedford
Ramsgate
Hounslow
Stansted

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from South America to London for 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 in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from South America.

I’m not ready to book a flight from South America to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of South America to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Wed 14/1
Wed 21/1

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London