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Cheap flights from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport, Brazil from £427

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDU
30 Aug — 6 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Santos Dumont

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Santos Dumont
Explore the most affordable flight options available from Heathrow to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2026.

Mon 16/1120:15
LHR
-
SDU
1 stop16h 10m
LATAM Airlines
Tue 24/1106:00
SDU
-
LHR
1 stop29h 05m
LATAM Airlines
Deal found 27/7£780
Wed 28/1018:30
LHR
-
SDU
2 stops30h 55m
Multiple Airlines
Thu 12/1117:15
SDU
-
LHR
1 stop17h 50m
Multiple Airlines
Deal found 30/7£785
Wed 28/1006:00
LHR
-
SDU
2 stops28h 05m
Multiple Airlines
Wed 11/1117:15
SDU
-
LHR
1 stop17h 50m
Multiple Airlines
Deal found 30/7£786
Tue 6/1022:05
LHR
-
SDU
2 stops37h 35m
Multiple Airlines
Tue 17/1113:45
SDU
-
LHR
2 stops22h 55m
Multiple Airlines
Deal found 29/7£787
Tue 15/921:20
LHR
-
SDU
1 stop28h 35m
LATAM Airlines
Tue 29/906:45
SDU
-
LHR
1 stop28h 20m
LATAM Airlines
Deal found 30/7£788
Wed 28/1006:00
LHR
-
SDU
2 stops28h 05m
Multiple Airlines
Sat 14/1118:10
SDU
-
LHR
1 stop16h 55m
Multiple Airlines
Deal found 30/7£788
Tue 24/1120:15
LHR
-
SDU
1 stop16h 10m
LATAM Airlines
Tue 1/1218:50
SDU
-
LHR
1 stop16h 15m
LATAM Airlines
Deal found 27/7£789
Thu 20/821:20
LHR
-
SDU
1 stop28h 35m
LATAM Airlines
Wed 23/613:55
SDU
-
LHR
1 stop20h 10m
LATAM Airlines
Deal found 28/7£790
Sat 21/1120:15
LHR
-
SDU
1 stop16h 10m
LATAM Airlines
Thu 26/1118:50
SDU
-
LHR
1 stop16h 15m
LATAM Airlines
Deal found 28/7£792
Mon 16/1120:15
LHR
-
SDU
1 stop16h 10m
LATAM Airlines
Wed 25/1118:50
SDU
-
LHR
1 stop16h 15m
LATAM Airlines
Deal found 29/7£793
Tue 8/921:20
LHR
-
SDU
2 stops25h 05m
LATAM Airlines
Fri 18/914:15
SDU
-
LHR
2 stops20h 50m
LATAM Airlines
Deal found 28/7£794
Wed 9/921:20
LHR
-
SDU
2 stops20h 10m
LATAM Airlines
Fri 18/914:15
SDU
-
LHR
2 stops20h 50m
LATAM Airlines
Deal found 28/7£795

Find flight deals from Heathrow to Santos Dumont

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Santos Dumont (SDU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 July 2026.

Round-trip from

£779

One-way from

£427

Popular in

December

Cheapest in

March

Average price

£1,018
LATAM Airlines
  • LATAM Airlines
  • 14/9-21/9
  • 3 total stops
  • 36h 05m total
  • London to Rio de Janeiro
Search Deals
15/9
  • 15/9
  • 3 total stops
  • 30h 20m total
  • London to Rio de Janeiro
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£37 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Santos Dumont 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, Cheapflights users made 858,174 searches. Data last updated 31 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Tue 26/1

07:30-09:25

2 stops28h 55m

Rio de Janeiro Santos Dumont

Tue 23/2

10:05-09:15

2 stops20h 10m

£849

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 2/11

16:30-07:40

2 stops42h 10m

Rio de Janeiro Santos Dumont

Wed 11/11

08:15-09:40

2 stops22h 25m

£878
Fastest return journey

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Wed 27/1

21:15-09:25

1 stop15h 10m

Rio de Janeiro Santos Dumont

Tue 23/2

10:05-08:25

2 stops19h 20m

£887

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Fri 4/12

16:30-11:10

2 stops45h 40m

Rio de Janeiro Santos Dumont

Mon 14/12

08:15-09:40

2 stops22h 25m

£903

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 9/11

16:30-07:40

2 stops42h 10m

Rio de Janeiro Santos Dumont

Thu 19/11

08:15-09:40

2 stops22h 25m

£903

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Tue 26/1

16:20-16:45

2 stops27h 25m

Rio de Janeiro Santos Dumont

Thu 11/2

13:45-20:35

2 stops27h 50m

£918

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Tue 8/9

12:15-16:45

2 stops32h 30m

Rio de Janeiro Santos Dumont

Tue 22/9

13:45-06:55

2 stops37h 10m

£918

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Wed 27/1

16:20-16:45

2 stops27h 25m

Rio de Janeiro Santos Dumont

Thu 11/2

13:45-20:35

2 stops27h 50m

£918

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 7/1

21:15-09:25

1 stop15h 10m

Rio de Janeiro Santos Dumont

Fri 29/1

10:05-08:25

2 stops19h 20m

£919

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sun 13/9

16:40-16:45

2 stops28h 05m

Rio de Janeiro Santos Dumont

Sun 27/9

14:50-06:45

2 stops35h 55m

£921

Flights are sorted by cheapest return flights first.

Deals found on 27/7

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Santos Dumont

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

Reviews of airlines servicing Santos Dumont

Get insights into the airlines that provide service to Santos Dumont. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santos Dumont. Reviews last updated 31 July 2026.
Read reviews from past customers who have flown with LATAM Airlines from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport. 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.
LATAM Airlines
7.4
Good
1,967 reviews
Check prices

Entertainment

7.0

Overall

7.4

Comfort

7.3

Food

6.7

Boarding

7.5

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.
LATAM Airlines
7.4
Good
1,967 reviews
LATAM Airlines
7.4
Good
1,967 reviews
Check prices

Entertainment

7.0

Overall

7.4

Comfort

7.3

Food

6.7

Boarding

7.5

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

JC,Jan 2026

FLN - GRU

Plane was late in FLN and missed connection in GRU. No alternative was given to me until 6 hours later and I was delayed by over 12 hours total.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Santos Dumont. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport?

    For as low as £849, British Airways can have you in Rio de Janeiro Santos Dumont Airport from London Heathrow Airport in 28h 55m. Airlines will cover a distance of 5750 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport round-trip?

    According to our current data, LATAM Airlines (£792), offers the cheapest pricing from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport.

  • Can I find deals for flights from Heathrow to Santos Dumont that include hotel bookings?

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

  • How can I find direct flights from Heathrow to Santos Dumont?

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

  • Can I find deals for business class flights from Heathrow to Santos Dumont?

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Heathrow to Santos Dumont

Discover the top airline that operate flights from Heathrow to Santos Dumont. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 July 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£792Average£920FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Santos Dumont?

Deals for Heathrow to Santos Dumont flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Santos Dumont?

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

Can Cheapflights find flights from Heathrow to Santos Dumont with no change fees?

Certainly. Search results for flights to Santos Dumont from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to Santos Dumont become cheaper?

Of course! You can now track prices for flights from Heathrow to Santos Dumont and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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