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Cheap flights from London to Rio de Janeiro Santos Dumont Airport, Brazil from £436

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SDU
16 Apr — 23 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Santos Dumont

Enter your travel dates to find the best prices.

Cheapest flights from London to Santos Dumont
Explore the most affordable flight options available from London to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 March 2026.

Tue 17/316:45
LCY
-
SDU
2 stops27h 00m
ITA Airways
Tue 24/308:15
SDU
-
LCY
2 stops28h 55m
ITA Airways
Deal found 12/3£704
Mon 9/1116:30
LHR
-
SDU
2 stops42h 10m
Multiple Airlines
Sun 15/1108:30
SDU
-
LHR
2 stops28h 10m
Multiple Airlines
Deal found 16/3£713
Mon 2/1110:30
LHR
-
SDU
2 stops48h 10m
Multiple Airlines
Sat 14/1107:55
SDU
-
LHR
2 stops22h 45m
Multiple Airlines
Deal found 15/3£721
Thu 12/1116:30
LHR
-
SDU
2 stops42h 25m
Multiple Airlines
Thu 26/1108:15
SDU
-
LHR
2 stops28h 25m
Multiple Airlines
Deal found 16/3£723
Tue 19/510:30
LHR
-
SDU
2 stops58h 15m
Multiple Airlines
Thu 4/613:45
SDU
-
LHR
2 stops39h 55m
Multiple Airlines
Deal found 13/3£729
Sat 14/1110:30
LHR
-
SDU
2 stops27h 40m
Multiple Airlines
Sat 28/1108:30
SDU
-
LHR
2 stops28h 10m
Multiple Airlines
Deal found 13/3£731
Sat 9/516:30
LHR
-
SDU
2 stops52h 15m
ITA Airways
Tue 9/613:45
SDU
-
LHR
2 stops39h 55m
ITA Airways
Deal found 15/3£738
Mon 11/511:20
LHR
-
SDU
2 stops24h 20m
Multiple Airlines
Mon 25/513:45
SDU
-
LHR
2 stops28h 15m
Multiple Airlines
Deal found 16/3£740
Thu 16/410:30
LHR
-
SDU
2 stops48h 50m
Multiple Airlines
Mon 27/413:50
SDU
-
LHR
2 stops39h 50m
Multiple Airlines
Deal found 13/3£743
Tue 16/616:30
LHR
-
SDU
2 stops43h 10m
ITA Airways
Tue 23/608:15
SDU
-
LHR
2 stops21h 25m
ITA Airways
Deal found 13/3£746
Tue 17/1110:30
LHR
-
SDU
2 stops33h 15m
Multiple Airlines
Tue 24/1108:15
SDU
-
LHR
2 stops22h 25m
Multiple Airlines
Deal found 16/3£748
Thu 10/910:30
LHR
-
SDU
2 stops48h 55m
Multiple Airlines
Fri 18/908:15
SDU
-
LHR
2 stops21h 25m
Multiple Airlines
Deal found 16/3£749

Find flight deals from London to Santos Dumont

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 17 March 2026.

Round-trip from

£729

One-way from

£436

Popular in

July

Cheapest in

March

Average price

£806
ITA Airways
  • ITA Airways
  • 19/5-4/6
  • 4 total stops
  • 98h 10m total
  • London to Rio de Janeiro
Search Deals
24/3
  • 24/3
  • 2 total stops
  • 28h 05m total
  • London to Rio de Janeiro
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£160 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£31 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 London 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 17 March 2026.
Use the filters below to find and compare flights from London 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 28/4

11:05-16:45

2 stops33h 40m

Rio de Janeiro Santos Dumont

Tue 5/5

13:45-06:45

2 stops37h 00m

£888

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 16/4

11:05-16:45

2 stops33h 40m

Rio de Janeiro Santos Dumont

Tue 28/4

13:50-06:45

2 stops36h 55m

£941

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

£961

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Wed 29/4

08:00-17:15

2 stops37h 15m

Rio de Janeiro Santos Dumont

Wed 13/5

13:45-11:35

2 stops41h 50m

£976

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Tue 19/5

17:25-16:45

2 stops27h 20m

Rio de Janeiro Santos Dumont

Thu 4/6

09:55-16:25

2 stops26h 30m

£1,018

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Mon 8/6

17:25-16:45

2 stops27h 20m

Rio de Janeiro Santos Dumont

Wed 17/6

08:15-09:00

2 stops20h 45m

£1,018

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Tue 19/5

17:25-16:45

2 stops27h 20m

Rio de Janeiro Santos Dumont

Wed 3/6

08:15-16:25

2 stops28h 10m

£1,018

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Wed 20/5

10:00-16:45

2 stops34h 45m

Rio de Janeiro Santos Dumont

Thu 4/6

09:55-09:00

2 stops19h 05m

£1,018

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Mon 25/5

10:00-16:45

2 stops34h 45m

Rio de Janeiro Santos Dumont

Thu 4/6

09:55-09:00

2 stops19h 05m

£1,022

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Wed 22/4

10:00-16:45

2 stops34h 45m

Rio de Janeiro Santos Dumont

Thu 14/5

08:15-09:00

2 stops20h 45m

£1,022

Flights are sorted by cheapest return flights first.

Deals found on 14/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London to Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont from London 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 to Rio de Janeiro Santos Dumont Airport

How much does it cost for a return flight from London to Rio de Janeiro Santos Dumont Airport?

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 17 March 2026.
Read through reviews of airlines operating flights from London to Rio de Janeiro Santos Dumont Airport, such as LATAM Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.4
Good
1,917 reviews
Check prices

Entertainment

7.0

Crew

8.0

Comfort

7.3

Food

6.7

Overall

7.4

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
1,917 reviews
LATAM Airlines
7.4
Good
1,917 reviews
Check prices

Entertainment

7.0

Crew

8.0

Comfort

7.3

Food

6.7

Overall

7.4

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 London 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 to Rio de Janeiro Santos Dumont Airport?

    Airlines like United Airlines, ITA Airways, and Air Europa fly from London to Rio de Janeiro Santos Dumont Airport in about 27h 20m. The time it takes to get you to your destination can typically vary by up to 6h 20m. The distance from London to Rio de Janeiro Santos Dumont Airport is about 5741 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at £820, LATAM Airlines will fly you from London to Rio de Janeiro Santos Dumont Airport and back. In addition to LATAM Airlines, many other airlines offer competitively priced options for your trip. You may be able to fly from London to Rio de Janeiro Santos Dumont Airport for 26% less than the average price by searching for this airline.

  • What are the most popular routes from London to Rio de Janeiro Santos Dumont Airport?

    The most popular flight routes from London to Rio de Janeiro Santos Dumont Airport are London Heathrow - Rio de Janeiro Santos Dumont, London Gatwick - Rio de Janeiro Santos Dumont and London City - Rio de Janeiro Santos Dumont.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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 London to Santos Dumont

Discover the top airline that operate flights from London 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 17 March 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest£820Average£1,032FlexibilityNo cancel feeOn-time81%
Search LATAM Airlines flights

Fly with Cheapflights

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

When you search for this flight from London to Santos Dumont, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to Santos Dumont for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from London to Santos Dumont with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on London to Santos Dumont flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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