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Cheap flights from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport, Brazil from £411

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDU
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 7 November 2025.

Round-trip from

£740

One-way from

£411

Popular in

December

Cheapest in

March

Average price

£720
LATAM Airlines
  • LATAM Airlines
  • 11/3-18/3
  • 2 total stops
  • 34h 00m total
  • London to Rio de Janeiro
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28/1
  • 28/1
  • 2 total stops
  • 25h 50m total
  • London to Rio de Janeiro
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find 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 7 November 2025.

Sun 23/1120:15LHR - SDU
1 stop19h 50mLATAM Airlines
Sun 7/1211:50SDU - LHR
2 stops23h 15mLATAM Airlines
Deal found 5/11£803
Thu 20/1116:05LHR - SDU
2 stops20h 20mMultiple Airlines
Thu 27/1114:00SDU - LHR
1 stop21h 05mMultiple Airlines
Deal found 5/11£810
Tue 30/1220:15LHR - SDU
2 stops24h 30mLATAM Airlines
Tue 27/121:20SDU - LHR
2 stops37h 45mLATAM Airlines
Deal found 5/11£815
Thu 20/1113:55LHR - SDU
2 stops22h 30mMultiple Airlines
Sat 6/1221:20SDU - LHR
2 stops37h 45mMultiple Airlines
Deal found 5/11£819
Thu 27/1120:15LHR - SDU
1 stop20h 00mLATAM Airlines
Sat 13/1211:50SDU - LHR
2 stops23h 15mLATAM Airlines
Deal found 6/11£847
Sun 16/1110:00LHR - SDU
2 stops33h 40mUnited Airlines
Tue 25/1113:45SDU - LHR
2 stops42h 30mUnited Airlines
Deal found 5/11£849
Sun 23/1107:10LHR - SDU
2 stops33h 05mMultiple Airlines
Sun 7/1211:50SDU - LHR
2 stops23h 15mMultiple Airlines
Deal found 5/11£855
Mon 29/1220:15LHR - SDU
2 stops21h 10mLATAM Airlines
Mon 26/121:20SDU - LHR
2 stops37h 45mLATAM Airlines
Deal found 5/11£858
Sun 30/1109:15LHR - SDU
2 stops55h 00mLATAM Airlines
Sun 7/1221:20SDU - LHR
2 stops37h 45mLATAM Airlines
Deal found 6/11£862

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 7 November 2025.
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

Heathrow

Fly to

Santos Dumont

Route

Depart

Return

Price

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 16/2

20:15-09:25

1 stop16h 10m

Rio de Janeiro Santos Dumont

Mon 23/2

21:20-14:05

2 stops37h 45m

£773

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Fri 17/4

21:20-11:15

2 stops17h 55m

Rio de Janeiro Santos Dumont

Sun 26/4

20:20-15:05

1 stop14h 45m

£803

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 12/3

17:45-09:35

2 stops42h 50m

Rio de Janeiro Santos Dumont

Thu 26/3

11:25-14:55

2 stops24h 30m

£810

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Wed 11/3

11:10-16:45

2 stops32h 35m

Rio de Janeiro Santos Dumont

Wed 18/3

11:25-07:10

2 stops40h 45m

£816

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 23/2

17:45-07:40

2 stops40h 55m

Rio de Janeiro Santos Dumont

Sun 8/3

08:30-16:00

2 stops28h 30m

£838

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 16/3

10:00-14:20

2 stops31h 20m

Rio de Janeiro Santos Dumont

Sun 22/3

14:55-05:55

2 stops36h 00m

£846

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sat 7/3

11:30-11:10

2 stops26h 40m

Rio de Janeiro Santos Dumont

Sat 14/3

11:25-14:55

2 stops24h 30m

£867

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 19/2

22:35-08:35

2 stops37h 00m

Rio de Janeiro Santos Dumont

Sun 8/3

08:30-14:55

2 stops27h 25m

£878

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Fri 20/2

06:35-08:35

2 stops29h 00m

Rio de Janeiro Santos Dumont

Sun 8/3

08:30-16:10

2 stops28h 40m

£878

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Tue 13/1

20:15-09:25

1 stop16h 10m

Rio de Janeiro Santos Dumont

Mon 26/1

13:40-14:05

2 stops21h 25m

£905

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 21 results
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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.

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 £773, LATAM Airlines can have you in Rio de Janeiro Santos Dumont Airport from London Heathrow Airport in 16h 10m. 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.

  • 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

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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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