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Cheap flights from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport, Brazil from £404

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 30/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDU
14 Nov — 21 Nov1
1 adult
1 adult, Economy

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 15 October 2025.

Round-trip from

£704

One-way from

£404

Popular in

December

Cheapest in

March

Average price

£793
24/2-13/3
  • 24/2-13/3
  • 4 total stops
  • 51h 50m total
  • London to Rio de Janeiro
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30/12
  • 30/12
  • 2 total stops
  • 46h 30m total
  • London to Rio de Janeiro
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£15 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).
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Average for round-trip flights in October 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 15 October 2025.

Wed 19/1119:05LHR - SDU
2 stops30h 20mMultiple Airlines
Tue 2/1220:05SDU - LHR
1 stop15h 00mMultiple Airlines
Deal found 14/10£708
Fri 21/1108:15LHR - SDU
2 stops25h 50mMultiple Airlines
Tue 2/1220:05SDU - LHR
1 stop15h 00mMultiple Airlines
Deal found 13/10£709
Tue 18/1108:15LHR - SDU
2 stops25h 50mMultiple Airlines
Wed 26/1120:05SDU - LHR
1 stop15h 00mMultiple Airlines
Deal found 13/10£718
Thu 20/1120:15LHR - SDU
1 stop16h 10mLATAM Airlines
Thu 27/1118:25SDU - LHR
1 stop16h 40mLATAM Airlines
Deal found 14/10£731
Fri 21/1108:15LHR - SDU
2 stops25h 50mMultiple Airlines
Mon 1/1220:05SDU - LHR
1 stop15h 00mMultiple Airlines
Deal found 13/10£733
Tue 18/1120:15LHR - SDU
1 stop16h 10mLATAM Airlines
Wed 26/1120:05SDU - LHR
1 stop15h 00mLATAM Airlines
Deal found 13/10£742
Fri 21/1108:15LHR - SDU
2 stops25h 50mMultiple Airlines
Wed 3/1220:05SDU - LHR
1 stop15h 00mMultiple Airlines
Deal found 13/10£745
Sun 2/1107:40LHR - SDU
2 stops36h 00mUnited Airlines
Mon 17/1113:45SDU - LHR
2 stops37h 55mUnited Airlines
Deal found 13/10£748
Tue 25/1120:15LHR - SDU
1 stop16h 10mLATAM Airlines
Tue 5/520:20SDU - LHR
1 stop14h 45mLATAM Airlines
Deal found 14/10£755
Sun 16/1120:15LHR - SDU
1 stop20h 00mLATAM Airlines
Tue 25/1120:05SDU - LHR
1 stop15h 00mLATAM Airlines
Deal found 14/10£756
Wed 19/1120:15LHR - SDU
1 stop16h 10mLATAM Airlines
Tue 2/1220:05SDU - LHR
1 stop15h 00mLATAM Airlines
Deal found 14/10£758

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 15 October 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

Thu 20/11

20:15-09:25

1 stop16h 10m

Rio de Janeiro Santos Dumont

Thu 27/11

18:25-14:05

1 stop16h 40m

£731

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sat 8/11

10:25-11:10

2 stops27h 45m

Rio de Janeiro Santos Dumont

Mon 17/11

13:45-05:55

2 stops37h 10m

£748

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sun 16/11

16:20-16:40

2 stops27h 20m

Rio de Janeiro Santos Dumont

Tue 25/11

13:45-05:55

2 stops37h 10m

£800

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 22/1

11:30-07:35

2 stops23h 05m

Rio de Janeiro Santos Dumont

Wed 18/3

11:25-14:10

2 stops23h 45m

£812

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sun 26/10

16:20-16:40

2 stops27h 20m

Rio de Janeiro Santos Dumont

Fri 7/11

13:45-05:55

2 stops37h 10m

£850

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sun 26/10

12:05-16:40

2 stops31h 35m

Rio de Janeiro Santos Dumont

Mon 3/11

13:45-06:40

2 stops37h 55m

£850

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sun 26/10

12:05-16:40

2 stops31h 35m

Rio de Janeiro Santos Dumont

Wed 5/11

13:45-06:40

2 stops37h 55m

£850

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Tue 28/10

10:00-16:40

2 stops33h 40m

Rio de Janeiro Santos Dumont

Wed 5/11

13:45-21:20

2 stops28h 35m

£852

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Tue 4/11

12:05-16:45

2 stops31h 40m

Rio de Janeiro Santos Dumont

Tue 25/11

13:45-05:55

2 stops37h 10m

£852

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Tue 17/2

20:15-13:15

1 stop20h 00m

Rio de Janeiro Santos Dumont

Tue 24/2

13:30-14:05

2 stops21h 35m

£863

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 20 results
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.

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 £731, 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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