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Cheap flights from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport, Brazil from £460

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDU
15 Oct — 22 Oct1
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 September 2025.

Round-trip from

£690

One-way from

£460

Popular in

December

Cheapest in

March

Average price

£708
LATAM Airlines
  • LATAM Airlines
  • 26/11-5/12
  • 3 total stops
  • 44h 45m total
  • London to Rio de Janeiro
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United Airlines
  • United Airlines
  • 21/9
  • 2 total stops
  • 33h 50m total
  • London to Rio de Janeiro
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£12 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Heathrow to Santos Dumont

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 September 2025.

Wed 26/1119:40LHR - SDU
2 stops29h 45mMultiple Airlines
Fri 5/1220:05SDU - LHR
1 stop15h 00mMultiple Airlines
Deal found 14/9£690
Fri 21/1106:00LHR - SDU
2 stops29h 25mMultiple Airlines
Sun 30/1108:30SDU - LHR
2 stops25h 10mMultiple Airlines
Deal found 14/9£710
Wed 12/1111:10LHR - SDU
2 stops32h 35mAir Canada
Wed 19/1113:45SDU - LHR
2 stops38h 25mAir Canada
Deal found 14/9£733
Mon 10/1120:15LHR - SDU
1 stop16h 10mLATAM Airlines
Sun 30/1114:00SDU - LHR
1 stop21h 05mLATAM Airlines
Deal found 14/9£748
Sat 8/1119:55LHR - SDU
2 stops29h 10mMultiple Airlines
Wed 12/1120:05SDU - LHR
1 stop15h 00mMultiple Airlines
Deal found 13/9£756
Wed 12/1120:15LHR - SDU
1 stop16h 10mLATAM Airlines
Fri 21/1121:20SDU - LHR
2 stops37h 45mLATAM Airlines
Deal found 14/9£756
Mon 10/1111:10LHR - SDU
2 stops32h 35mAir Canada
Mon 24/1113:45SDU - LHR
2 stops38h 25mAir Canada
Deal found 14/9£757
Mon 17/1120:15LHR - SDU
1 stop16h 10mLATAM Airlines
Sun 30/1121:20SDU - LHR
2 stops37h 45mLATAM Airlines
Deal found 14/9£762
Thu 13/1120:15LHR - SDU
1 stop16h 10mLATAM Airlines
Sat 22/1106:05SDU - LHR
2 stops29h 00mLATAM Airlines
Deal found 14/9£764
Wed 26/1120:15LHR - SDU
1 stop16h 10mLATAM Airlines
Fri 5/1220:05SDU - LHR
1 stop15h 00mLATAM Airlines
Deal found 14/9£766
Fri 7/1106:00LHR - SDU
2 stops28h 05mMultiple Airlines
Wed 19/1120:05SDU - LHR
1 stop15h 00mMultiple Airlines
Deal found 14/9£773

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 September 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

Wed 12/11

11:10-16:45

2 stops32h 35m

Rio de Janeiro Santos Dumont

Wed 19/11

13:45-06:30

2 stops37h 45m

£733

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sun 1/3

12:05-14:20

2 stops29h 15m

Rio de Janeiro Santos Dumont

Sun 8/3

14:55-10:15

2 stops40h 20m

£744

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 9/2

20:15-13:15

1 stop20h 00m

Rio de Janeiro Santos Dumont

Tue 17/2

16:50-14:05

1 stop18h 15m

£748

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 10/11

11:10-16:45

2 stops32h 35m

Rio de Janeiro Santos Dumont

Mon 24/11

13:45-07:10

2 stops38h 25m

£758

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 9/2

20:15-13:15

1 stop20h 00m

Rio de Janeiro Santos Dumont

Mon 16/2

21:20-14:05

2 stops37h 45m

£762

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 12/1

11:10-14:20

2 stops30h 10m

Rio de Janeiro Santos Dumont

Tue 10/2

11:25-06:30

2 stops40h 05m

£783

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sun 22/2

11:10-14:20

2 stops30h 10m

Rio de Janeiro Santos Dumont

Wed 4/3

11:25-07:10

2 stops40h 45m

£789

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 22/1

11:30-07:40

2 stops23h 10m

Rio de Janeiro Santos Dumont

Wed 18/3

11:25-14:10

2 stops23h 45m

£808

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Sat 7/3

11:30-09:35

2 stops25h 05m

Rio de Janeiro Santos Dumont

Sat 14/3

11:25-14:55

2 stops24h 30m

£827

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 22/9

12:15-14:20

2 stops30h 05m

£460

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 19 results
1
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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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport

What is the cheapest time of day to fly from LHR to SDU?

Find hourly flight availability from Heathrow to Santos Dumont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 September 2025.

When flying from London Heathrow Airport to Rio de Janeiro Santos Dumont Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 £748, Air Canada can have you in Rio de Janeiro Santos Dumont Airport from London Heathrow Airport in 20h. 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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