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Cheap flights from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport, Brazil from £450

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 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDU
21 Apr — 28 Apr1
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 22 March 2026.

Mon 9/1116:30
LHR
-
SDU
2 stops42h 10m
Multiple Airlines
Sun 29/1108:30
SDU
-
LHR
2 stops22h 10m
Multiple Airlines
Deal found 17/3£713
Sat 7/1110:30
LHR
-
SDU
2 stops27h 40m
Multiple Airlines
Tue 17/1108:55
SDU
-
LHR
2 stops21h 45m
Multiple Airlines
Deal found 19/3£720
Mon 16/1116:30
LHR
-
SDU
2 stops27h 15m
Multiple Airlines
Thu 26/1108:15
SDU
-
LHR
2 stops22h 25m
Multiple Airlines
Deal found 17/3£726
Wed 13/516:30
LHR
-
SDU
2 stops28h 15m
ITA Airways
Tue 26/508:15
SDU
-
LHR
2 stops21h 25m
ITA Airways
Deal found 21/3£729
Tue 13/1016:30
LHR
-
SDU
2 stops43h 10m
ITA Airways
Wed 21/1008:15
SDU
-
LHR
2 stops21h 25m
ITA Airways
Deal found 18/3£736
Wed 10/616:30
LHR
-
SDU
2 stops43h 10m
ITA Airways
Sun 21/608:30
SDU
-
LHR
2 stops45h 10m
ITA Airways
Deal found 17/3£737
Wed 6/516:30
LHR
-
SDU
2 stops43h 10m
Multiple Airlines
Mon 18/513:45
SDU
-
LHR
2 stops39h 55m
Multiple Airlines
Deal found 17/3£763
Wed 8/410:30
LHR
-
SDU
2 stops34h 45m
Multiple Airlines
Fri 24/413:50
SDU
-
LHR
2 stops39h 50m
Multiple Airlines
Deal found 18/3£764
Mon 11/506:00
LHR
-
SDU
2 stops20h 25m
Multiple Airlines
Mon 18/513:45
SDU
-
LHR
2 stops21h 50m
Multiple Airlines
Deal found 20/3£765
Mon 23/1110:30
LHR
-
SDU
2 stops48h 10m
Multiple Airlines
Thu 3/1208:15
SDU
-
LHR
2 stops28h 25m
Multiple Airlines
Deal found 18/3£766
Tue 1/1210:30
LHR
-
SDU
2 stops48h 10m
Multiple Airlines
Tue 8/1213:45
SDU
-
LHR
2 stops22h 55m
Multiple Airlines
Deal found 21/3£767
Tue 19/516:30
LHR
-
SDU
2 stops43h 10m
ITA Airways
Mon 1/613:45
SDU
-
LHR
2 stops39h 55m
ITA Airways
Deal found 17/3£773

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 22 March 2026.

Round-trip from

£729

One-way from

£450

Popular in

December

Cheapest in

September

Average price

£743
ITA Airways
  • ITA Airways
  • 13/5-26/5
  • 4 total stops
  • 49h 40m total
  • London to Rio de Janeiro
Search Deals
30/3
  • 30/3
  • 2 total stops
  • 30h 35m total
  • London to Rio de Janeiro
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£25 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 22 March 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

Thu 16/4

14:10-16:45

2 stops30h 35m

Rio de Janeiro Santos Dumont

Thu 23/4

13:50-07:55

2 stops38h 05m

£925

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 13/4

10:00-16:45

2 stops34h 45m

Rio de Janeiro Santos Dumont

Wed 13/5

13:45-07:40

2 stops37h 55m

£928

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Wed 15/4

11:05-16:45

2 stops33h 40m

Rio de Janeiro Santos Dumont

Wed 13/5

13:45-07:40

2 stops37h 55m

£928

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Wed 15/4

14:10-16:45

2 stops30h 35m

Rio de Janeiro Santos Dumont

Wed 6/5

13:45-07:40

2 stops37h 55m

£928

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 17/9

08:00-16:45

2 stops36h 45m

Rio de Janeiro Santos Dumont

Tue 22/9

13:45-06:55

2 stops37h 10m

£931

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Fri 10/4

16:30-20:15

2 stops31h 45m

Rio de Janeiro Santos Dumont

Thu 14/5

08:15-09:40

2 stops21h 25m

£935

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 7/5

06:30-07:40

2 stops29h 10m

Rio de Janeiro Santos Dumont

Thu 14/5

08:15-15:10

2 stops26h 55m

£968
Fastest return journey

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 2/7

16:30-16:45

2 stops28h 15m

Rio de Janeiro Santos Dumont

Sun 12/7

08:30-09:40

2 stops21h 10m

£1,016

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sat 11/4

11:05-17:45

2 stops34h 40m

Rio de Janeiro Santos Dumont

Sat 9/5

17:30-06:55

2 stops33h 25m

£1,084

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 16/4

08:00-16:45

2 stops36h 45m

Rio de Janeiro Santos Dumont

Tue 28/4

13:50-06:45

2 stops36h 55m

£1,085

Flights are sorted by cheapest return flights first.

Deals found on 17/3

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

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 22 March 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
1,916 reviews
Check prices

Overall

7.4

Crew

8.0

Entertainment

7.0

Food

6.7

Comfort

7.3

Boarding

7.5

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
1,916 reviews
LATAM Airlines
7.4
Good
1,916 reviews
Check prices

Overall

7.4

Crew

8.0

Entertainment

7.0

Food

6.7

Comfort

7.3

Boarding

7.5

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 £925, United Airlines can have you in Rio de Janeiro Santos Dumont Airport from London Heathrow Airport in 30h 35m. Airlines will cover a distance of 5750 mi.

  • 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 (£817), 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 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£817Average£1,028FlexibilityNo 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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