Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from South America to the United Kingdom from £261

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 21/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from South America to the United Kingdom

Cheap return flights

Ethiopian Air Logo
01:45 - 07:00GRU-LHR
25h 15m1 stop
Ethiopian Air Logo
21:00 - 16:20LHR-GRU
23h 20m1 stop
£416Ethiopian Air
Find Deal
Wed, 3 Sep - Thu, 11 Sep
Avianca Logo
07:20 - 15:35GRU-LHR
28h 15m1 stop
Avianca Logo
22:05 - 02:10LHR-GRU
32h 05m1 stop
£496Avianca
Find Deal
Sun, 10 Aug - Mon, 25 Aug
TAP AIR PORTUGAL Logo
00:05 - 20:35GRU-LGW
17h 30m1 stop
TAP AIR PORTUGAL Logo
21:25 - 22:30LGW-GRU
28h 05m1 stop
£536TAP AIR PORTUGAL
Find Deal
Mon, 17 Nov - Sun, 23 Nov
TAP AIR PORTUGAL Logo
23:50 - 20:35GRU-LGW
17h 45m1 stop
TAP AIR PORTUGAL Logo
10:40 - 23:55LGW-GRU
16h 15m1 stop
£552TAP AIR PORTUGAL
Find Deal
Thu, 13 Nov - Mon, 24 Nov
British Airways Logo
18:00 - 08:35GIG-LHR
11h 35mdirect
British Airways Logo
07:30 - 18:40LHR-GIG
14h 10m1 stop
£576British Airways
Find Deal
Wed, 19 Nov - Thu, 27 Nov
British Airways Logo
18:00 - 08:35GIG-LHR
11h 35mdirect
British Airways Logo
06:15 - 18:40LHR-GIG
15h 25m1 stop
£577British Airways
Find Deal
Thu, 13 Nov - Thu, 20 Nov
Iberia Logo
19:10 - 16:20GIG-LHR
17h 10m1 stop
Iberia Logo
17:25 - 18:40LHR-GIG
28h 15m1 stop
£588Iberia
Find Deal
Wed, 22 Oct - Thu, 6 Nov
Iberia Logo
19:10 - 14:55GIG-LHR
15h 45m1 stop
Iberia Logo
17:25 - 18:40LHR-GIG
28h 15m1 stop
£589Iberia
Find Deal
Wed, 22 Oct - Thu, 6 Nov
LATAM Airlines Logo
18:20 - 14:05AEP-LHR
16h 45m1 stop
LATAM Airlines Logo
20:15 - 09:40LHR-AEP
16h 25m1 stop
£915LATAM Airlines
Find Deal
Thu, 20 Nov - Wed, 3 Dec
LATAM Airlines Logo
10:05 - 14:05EZE-LHR
25h 00m2 stops
LATAM Airlines Logo
19:40 - 14:55LHR-EZE
22h 15m2 stops
£924LATAM Airlines
Find Deal
Wed, 12 Nov - Thu, 4 Dec

Ethiopian Air flights from South America to United Kingdom

Our best Ethiopian Air deals on South America to United Kingdom flight tickets
Ethiopian Air
3 Sept
GRU01:45Sao Paulo Guarulhos Intl
25h 15m
1 stop
LHR07:00London Heathrow
11 Sept
LHR21:00London Heathrow
23h 20m
1 stop
GRU16:20Sao Paulo Guarulhos Intl
£416
Find similar
Ethiopian Air
15 Aug
EZE21:55Buenos Aires Ministro Pistarini
29h 05m
2 stops
LHR07:00London Heathrow
20 Aug
LHR21:00London Heathrow
27h 25m
2 stops
EZE20:25Buenos Aires Ministro Pistarini
£875
Find similar

Avianca flights from South America to United Kingdom

Our best Avianca deals on South America to United Kingdom flight tickets
Avianca
10 Aug
GRU07:20Sao Paulo Guarulhos Intl
28h 15m
1 stop
LHR15:35London Heathrow
25 Aug
LHR22:05London Heathrow
32h 05m
1 stop
GRU02:10Sao Paulo Guarulhos Intl
£496
Find similar
Avianca
8 Aug
GRU04:10Sao Paulo Guarulhos Intl
31h 25m
1 stop
LHR15:35London Heathrow
26 Aug
LHR22:05London Heathrow
21h 15m
1 stop
GRU15:20Sao Paulo Guarulhos Intl
£498
Find similar
Avianca
10 Aug
GRU04:10Sao Paulo Guarulhos Intl
31h 25m
1 stop
LHR15:35London Heathrow
19 Aug
LHR22:05London Heathrow
30h 35m
1 stop
GRU00:40Sao Paulo Guarulhos Intl
£499
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 1 August 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 - LHR

GRULHR

Sao Paulo Guarulhos Intl

Wed 3/9

01:45-07:00

1 stop25h 15m

London Heathrow

Thu 11/9

21:00-16:20

1 stop23h 20m

£416

Sao PauloLondon

GRU - LHR

GRULHR

Sao Paulo Guarulhos Intl

Sun 10/8

07:20-15:35

1 stop28h 15m

London Heathrow

Mon 25/8

22:05-02:10

1 stop32h 05m

£496

Sao PauloLondon

GRU - LGW

GRULGW

Sao Paulo Guarulhos Intl

Mon 17/11

00:05-20:35

1 stop17h 30m

London Gatwick

Sun 23/11

21:25-22:30

1 stop28h 05m

£536

Sao PauloLondon

GRU - LGW

GRULGW

Sao Paulo Guarulhos Intl

Thu 13/11

23:50-20:35

1 stop17h 45m

London Gatwick

Mon 24/11

10:40-23:55

1 stop16h 15m

£552

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Wed 19/11

18:00-08:35

Nonstop11h 35m

London Heathrow

Thu 27/11

07:30-18:40

1 stop14h 10m

£576

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Thu 13/11

18:00-08:35

Nonstop11h 35m

London Heathrow

Thu 20/11

06:15-18:40

1 stop15h 25m

£577

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Wed 22/10

19:10-16:20

1 stop17h 10m

London Heathrow

Thu 6/11

17:25-18:40

1 stop28h 15m

£588

Rio de JaneiroLondon

GIG - LHR

GIGLHR

Rio de Janeiro–Galeão Intl

Wed 22/10

19:10-14:55

1 stop15h 45m

London Heathrow

Thu 6/11

17:25-18:40

1 stop28h 15m

£589

Buenos AiresLondon

AEP - LHR

AEPLHR

Buenos Aires Jorge Newbery

Thu 20/11

18:20-14:05

1 stop16h 45m

London Heathrow

Wed 3/12

20:15-09:40

1 stop16h 25m

£915

Buenos AiresLondon

EZE - LHR

EZELHR

Buenos Aires Ministro Pistarini

Wed 12/11

10:05-14:05

2 stops25h 00m

London Heathrow

Thu 4/12

19:40-14:55

2 stops22h 15m

£924

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 February. Flight prices, which tend to average around £547, 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 February, then departing from South America during the month March is also very affordable. Most momondo users find prices during this month for around £567.

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 Monday. Travellers who choose to depart for United Kingdom on a Monday will often find tickets for as low as £866. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from South America to United Kingdom for around £1,017.

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 £678. Try not to purchase tickets in the evening because they tend to be around £886. 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 £735 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 £637 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 8% 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

£261

Fastest flight time

11h 20m

Direct flights

Every day

Airports in United Kingdom

3 airports
The best one-way flight to United Kingdom from South America in the past 72 hours is £261. The best return flight deal from South America to United Kingdom found on momondo in the last 72 hours is £416.
The fastest flight from South America to United Kingdom takes 11h 20m
Direct flights go from South America to United Kingdom every day.
There are 3 airports near United Kingdom: London City (LCY), London Heathrow (LHR), London Gatwick (LGW)
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
LufthansaPriceFrom £452Free CancellationRating
6.8
7,275 reviews
Search Lufthansa flights
GOLPriceFrom £528Free CancellationRating
7.3
1,091 reviews
Search GOL flights
TAP AIR PORTUGALPriceFrom £535Free CancellationRating
7.1
1,933 reviews
Search TAP AIR PORTUGAL flights
Air FrancePriceFrom £557Free CancellationRating
7.5
1,465 reviews
Search Air France flights
British AirwaysPriceFrom £557Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
IberiaPriceFrom £565Free CancellationRating
7.0
2,859 reviews
Search Iberia flights
AviancaPriceFrom £567Free CancellationRating
6.7
2,388 reviews
Search Avianca flights
LATAM AirlinesPriceFrom £605Free CancellationRating
7.5
1,822 reviews
Search LATAM Airlines flights
KLMPriceFrom £624Free CancellationRating
7.8
1,383 reviews
Search KLM flights
SWISSPriceFrom £661Free CancellationRating
7.5
1,686 reviews
Search SWISS 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.

An easier way to manage your United Kingdom trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 6/8
Wed 13/8
By creating a price alert you accept our terms of use and privacy policy.

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 £32
Flights to Birminghamfrom £33
Flights to Edinburghfrom £29
Flights to Belfastfrom £30
Flights to Glasgowfrom £31
Flights to Bristolfrom £34
Flights to Newcastle upon Tynefrom £34
Flights to Aberdeenfrom £51
Flights to Liverpoolfrom £31
Flights to Leedsfrom £35
Flights to Invernessfrom £36