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Cheap flights from South America to the United Kingdom from £307

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 the United Kingdom departing on 11/3. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:35 - 13:50
GRU
-
LGW
27h 15m2 stops
Multiple Airlines Logo
07:20 - 05:35
LGW
-
GRU
26h 15m2 stops
£558Multiple Airlines
Mon, 9 Mar - Tue, 31 Mar
Air Canada Logo
21:15 - 07:10
GRU
-
LHR
30h 55m1 stop
Air Canada Logo
06:50 - 09:00
LHR
-
GRU
29h 10m2 stops
£558Air Canada
Wed, 11 Mar - Tue, 17 Mar
Avianca Logo
07:35 - 14:35
GRU
-
LHR
28h 00m1 stop
Avianca Logo
21:40 - 01:35
LHR
-
GRU
30h 55m1 stop
£560Avianca
Fri, 6 Feb - Mon, 23 Feb
Avianca Logo
17:25 - 14:35
GRU
-
LHR
18h 10m1 stop
Avianca Logo
21:40 - 22:40
LHR
-
GRU
28h 00m1 stop
£561Avianca
Mon, 16 Feb - Mon, 23 Feb
TAP AIR PORTUGAL Logo
20:20 - 18:50
GIG
-
LHR
18h 30m1 stop
TAP AIR PORTUGAL Logo
06:00 - 17:20
LHR
-
GIG
15h 20m1 stop
£575TAP AIR PORTUGAL
Tue, 5 May - Tue, 12 May
TAP AIR PORTUGAL Logo
22:05 - 17:30
GIG
-
LHR
16h 25m1 stop
TAP AIR PORTUGAL Logo
06:00 - 17:20
LHR
-
GIG
15h 20m1 stop
£576TAP AIR PORTUGAL
Thu, 26 Mar - Tue, 26 May
GOL Logo
22:00 - 10:30
CGH
-
LHR
33h 30m2 stops
GOL Logo
09:00 - 11:15
LHR
-
CGH
30h 15m2 stops
£712GOL
Mon, 9 Mar - Tue, 31 Mar
GOL Logo
10:00 - 13:45
CGH
-
LHR
24h 45m2 stops
GOL Logo
06:20 - 16:30
LHR
-
CGH
37h 10m2 stops
£717GOL
Fri, 13 Mar - Wed, 25 Mar
LATAM Airlines Logo
16:45 - 15:05
EZE
-
LHR
18h 20m1 stop
LATAM Airlines Logo
19:10 - 12:22
LHR
-
EZE
21h 12m2 stops
£938LATAM Airlines
Sun, 10 May - Tue, 2 Jun
LATAM Airlines Logo
21:55 - 14:05
EZE
-
LHR
37h 10m1 stop
LATAM Airlines Logo
19:40 - 02:50
LHR
-
EZE
34h 10m2 stops
£942LATAM Airlines
Mon, 23 Feb - Mon, 9 Mar

Avianca flights from South America to United Kingdom

Our best Avianca deals on South America to United Kingdom flight tickets
Avianca
9 Feb
GRU17:25Sao Paulo Guarulhos Intl
18h 10m
1 stop
LHR14:35London Heathrow
25 Feb
LHR21:40London Heathrow
28h 00m
1 stop
GRU22:40Sao Paulo Guarulhos Intl
£560
Find similar
Avianca
16 Feb
GRU17:25Sao Paulo Guarulhos Intl
18h 10m
1 stop
LHR14:35London Heathrow
23 Feb
LHR21:40London Heathrow
21h 35m
1 stop
GRU16:15Sao Paulo Guarulhos Intl
£561
Find similar
Avianca
10 Dec
GRU17:25Sao Paulo Guarulhos Intl
18h 10m
1 stop
LHR14:35London Heathrow
19 May
LHR22:05London Heathrow
32h 05m
1 stop
GRU02:10Sao Paulo Guarulhos Intl
£570
Find similar

LATAM Airlines flights from South America to United Kingdom

Our best LATAM Airlines deals on South America to United Kingdom flight tickets
LATAM Airlines
17 Feb
GIG16:40Rio de Janeiro–Galeão Intl
18h 25m
2 stops
LHR14:05London Heathrow
10 Mar
LHR13:25London Heathrow
22h 15m
2 stops
GIG08:40Rio de Janeiro–Galeão Intl
£615
Find similar
LATAM Airlines
26 Feb
GIG16:40Rio de Janeiro–Galeão Intl
18h 25m
2 stops
LHR14:05London Heathrow
9 Mar
LHR19:40London Heathrow
26h 00m
1 stop
GIG18:40Rio de Janeiro–Galeão Intl
£618
Find similar
LATAM Airlines
17 Feb
GIG16:40Rio de Janeiro–Galeão Intl
18h 25m
2 stops
LHR14:05London Heathrow
13 Mar
LHR20:15London Heathrow
25h 10m
2 stops
GIG18:25Rio de Janeiro–Galeão Intl
£630
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from South America to United Kingdom 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 5 December 2025.
Use the filters below to find and compare flights from South America to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sao PauloLondon

GRU - LGW

GRULGW

Sao Paulo Guarulhos Intl

Mon 9/3

07:35-13:50

2 stops27h 15m

London Gatwick

Tue 31/3

07:20-05:35

2 stops26h 15m

£558

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Wed 11/3

21:15-07:10

1 stop30h 55m

London Heathrow

Tue 17/3

06:50-09:00

2 stops29h 10m

£558

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Fri 6/2

07:35-14:35

1 stop28h 00m

London Heathrow

Mon 23/2

21:40-01:35

1 stop30h 55m

£560

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Mon 16/2

17:25-14:35

1 stop18h 10m

London Heathrow

Mon 23/2

21:40-22:40

1 stop28h 00m

£561

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Tue 5/5

20:20-18:50

1 stop18h 30m

London Heathrow

Tue 12/5

06:00-17:20

1 stop15h 20m

£575

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Thu 26/3

22:05-17:30

1 stop16h 25m

London Heathrow

Tue 26/5

06:00-17:20

1 stop15h 20m

£576

Sao PauloLondon

CGH - LHR

CGHLHR

Sao Paulo Congonhas

Mon 9/3

22:00-10:30

2 stops33h 30m

London Heathrow

Tue 31/3

09:00-11:15

2 stops30h 15m

£712

Sao PauloLondon

CGH - LHR

CGHLHR

Sao Paulo Congonhas

Fri 13/3

10:00-13:45

2 stops24h 45m

London Heathrow

Wed 25/3

06:20-16:30

2 stops37h 10m

£717

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Sun 10/5

16:45-15:05

1 stop18h 20m

London Heathrow

Tue 2/6

19:10-12:22

2 stops21h 12m

£938

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Mon 23/2

21:55-14:05

1 stop37h 10m

London Heathrow

Mon 9/3

19:40-02:50

2 stops34h 10m

£942

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 the United Kingdom from

How to get the cheapest flight ticket from South America to United Kingdom

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 United Kingdom?

The cheapest month to fly to United Kingdom from South America is in March. Flight prices, which tend to average around £671, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of March, then departing from South America during the month February is also very affordable. Most momondo users find prices during this month for around £681.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from South America to United Kingdom is on a Friday. Travellers who choose to depart for United Kingdom on a Friday will often find tickets for as low as £865. 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 United Kingdom for around £1,016.

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

The cheapest time of day to fly to United Kingdom is in the morning when flights can be purchased for as low as £673. Try not to purchase tickets in the evening because they tend to be around £908. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest South America to United Kingdom flight route?

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

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from South America when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £838 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from South America for as low as £737 on momondo.

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

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

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

Cheap South America to United Kingdom flight deals and tips

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

Best price found

£312

Fastest flight time

0h 00m

Direct flights

Every day

Airports in United Kingdom

1 airport
The best one-way flight to United Kingdom from South America in the past 72 hours is £312. The best return flight deal from South America to United Kingdom found on momondo in the last 72 hours is £691.
The fastest flight from South America to United Kingdom takes 0h 00m
Direct flights go from South America to United Kingdom every day.
There is 1 airport near United Kingdom: London Heathrow (LHR)
Search flight deals

  • When did momondo last update prices for flights from South America to United Kingdom?

    Prices for flights from South America to United Kingdom were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South America to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from South America to United Kingdom?

Best airlines flying from South America to United Kingdom

Compare and see reviews for airlines that fly from South America to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom £426Free CancellationRating
7.1
10,500 reviews
Search Air Canada flights
TAP AIR PORTUGALPriceFrom £506Free CancellationRating
7.1
2,081 reviews
Search TAP AIR PORTUGAL flights
Air FrancePriceFrom £520Free CancellationRating
7.4
1,502 reviews
Search Air France flights
LufthansaPriceFrom £525Free CancellationRating
6.8
7,612 reviews
Search Lufthansa flights
GOLPriceFrom £540Free CancellationRating
7.3
1,128 reviews
Search GOL flights
KLMPriceFrom £568Free CancellationRating
7.7
1,430 reviews
Search KLM flights
IberiaPriceFrom £601Free CancellationRating
7.0
3,040 reviews
Search Iberia flights
British AirwaysPriceFrom £604Free CancellationRating
6.7
7,562 reviews
Search British Airways flights
AviancaPriceFrom £615Free CancellationRating
6.6
2,479 reviews
Search Avianca flights
LATAM AirlinesPriceFrom £616Free CancellationRating
7.5
1,890 reviews
Search LATAM Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from South America.

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

All flight searches from South America to United Kingdom on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential South America to United Kingdom flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from South America to United Kingdom now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United Kingdom and let you know when they change.

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Find better results for your trip to the United Kingdom

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom £30
Flights to Manchesterfrom £28
Flights to Birminghamfrom £30
Flights to Edinburghfrom £29
Flights to Belfastfrom £28
Flights to Glasgowfrom £26
Flights to Bristolfrom £26
Flights to Newcastle upon Tynefrom £30
Flights to Aberdeenfrom £37
Flights to Liverpoolfrom £28
Flights to Leedsfrom £48
Flights to Invernessfrom £31