Find flights
When to book
Airlines
FAQs

Cheap flights from London to Rio de Janeiro Santos Dumont Airport, Brazil from £438

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 28/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SDU
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 16 January 2026.

Round-trip from

£709

One-way from

£438

Popular in

July

Cheapest in

September

Average price

£1,031
LATAM Airlines
  • LATAM Airlines
  • 12/3-22/3
  • 2 total stops
  • 31h 10m total
  • London to Rio de Janeiro
Search Deals
28/3
  • 28/3
  • 2 total stops
  • 44h 55m total
  • London to Rio de Janeiro
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£202 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£32 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 16 January 2026.

Thu 12/320:15
LHR
-
SDU
1 stop16h 10m
LATAM Airlines
Sun 22/320:05
SDU
-
LHR
1 stop15h 00m
LATAM Airlines
Deal found 15/1£709
Sat 7/305:55
LGW
-
SDU
3 stops32h 15m
Multiple Airlines
Sun 15/306:15
SDU
-
LGW
3 stops47h 45m
Multiple Airlines
Deal found 15/1£709
Tue 10/316:45
LCY
-
SDU
2 stops26h 55m
Multiple Airlines
Wed 18/313:45
SDU
-
LCY
2 stops23h 25m
Multiple Airlines
Deal found 14/1£712
Thu 12/320:15
LHR
-
SDU
1 stop16h 10m
LATAM Airlines
Thu 19/320:05
SDU
-
LHR
1 stop15h 00m
LATAM Airlines
Deal found 14/1£713
Thu 12/320:15
LHR
-
SDU
1 stop16h 10m
LATAM Airlines
Thu 26/320:05
SDU
-
LHR
1 stop15h 00m
LATAM Airlines
Deal found 14/1£714
Tue 20/116:45
LCY
-
SDU
2 stops24h 25m
ITA Airways
Wed 18/308:15
SDU
-
LCY
2 stops23h 40m
ITA Airways
Deal found 15/1£717
Wed 11/308:25
LCY
-
SDU
2 stops59h 15m
ITA Airways
Wed 18/308:15
SDU
-
LCY
2 stops23h 40m
ITA Airways
Deal found 14/1£718
Sun 22/220:55
LGW
-
SDU
2 stops26h 30m
Multiple Airlines
Tue 17/318:50
SDU
-
LGW
2 stops20h 15m
Multiple Airlines
Deal found 14/1£719
Tue 10/320:15
LHR
-
SDU
1 stop16h 10m
LATAM Airlines
Tue 17/320:05
SDU
-
LHR
1 stop15h 00m
LATAM Airlines
Deal found 15/1£730
Sat 14/317:25
LGW
-
SDU
2 stops20h 45m
Air Europa
Thu 19/308:15
SDU
-
LGW
2 stops21h 45m
Air Europa
Deal found 15/1£735
Tue 24/313:25
LHR
-
SDU
2 stops23h 00m
LATAM Airlines
Thu 23/414:15
SDU
-
LHR
2 stops20h 50m
LATAM Airlines
Deal found 14/1£739
Sat 14/320:15
LHR
-
SDU
1 stop16h 20m
LATAM Airlines
Mon 23/318:25
SDU
-
LHR
1 stop16h 40m
LATAM Airlines
Deal found 14/1£740

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 16 January 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

London

Fly to

Santos Dumont

Route

Depart

Return

Price

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 12/3

20:15-09:25

1 stop16h 10m

Rio de Janeiro Santos Dumont

Sun 22/3

20:05-14:05

1 stop15h 00m

£709

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Tue 10/3

16:45-16:40

2 stops26h 55m

Rio de Janeiro Santos Dumont

Wed 18/3

13:45-16:10

2 stops23h 25m

£712

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Wed 11/3

08:25-16:40

2 stops59h 15m

Rio de Janeiro Santos Dumont

Wed 18/3

08:15-10:55

2 stops23h 40m

£718

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Sun 1/3

16:45-16:40

2 stops50h 55m

Rio de Janeiro Santos Dumont

Sun 15/3

08:30-10:55

2 stops23h 25m

£743

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Thu 12/3

17:25-16:40

2 stops26h 15m

Rio de Janeiro Santos Dumont

Sun 22/3

08:30-09:00

2 stops21h 30m

£752

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Tue 10/3

16:45-16:40

2 stops26h 55m

Rio de Janeiro Santos Dumont

Fri 20/3

08:15-10:55

2 stops23h 40m

£754

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 19/3

21:15-09:25

1 stop15h 10m

Rio de Janeiro Santos Dumont

Sat 28/3

18:30-05:50

1 stop32h 20m

£759

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 21/5

21:20-08:35

1 stop15h 15m

Rio de Janeiro Santos Dumont

Thu 28/5

14:15-15:05

2 stops20h 50m

£764

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Thu 19/3

20:15-13:15

1 stop20h 00m

Rio de Janeiro Santos Dumont

Sat 28/3

12:55-14:05

2 stops22h 10m

£775

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Fri 6/3

20:15-09:35

1 stop16h 20m

Rio de Janeiro Santos Dumont

Fri 13/3

20:05-14:05

1 stop15h 00m

£778

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 58 results
1
2
3
...
6

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
No data available for this route at this time. Please check back soon.

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 16 January 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
7.5
Good
1,906 reviews
Check prices

Entertainment

7.0

Food

6.7

Boarding

7.6

Overall

7.5

Comfort

7.3

Crew

8.0

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
7.5
Good
1,906 reviews
LATAM Airlines
7.5
Good
1,906 reviews
Check prices

Entertainment

7.0

Food

6.7

Boarding

7.6

Overall

7.5

Comfort

7.3

Crew

8.0

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 LATAM Airlines, ITA Airways, and Air Europa fly from London to Rio de Janeiro Santos Dumont Airport in about 16h 10m. The time it takes to get you to your destination can typically vary by up to 43h 05m. The distance from London to Rio de Janeiro Santos Dumont Airport is about 5750 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.