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Cheap flights from London to Rio de Janeiro Santos Dumont Airport, Brazil from £429

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SDU
14 Mar — 21 Mar1
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 12 February 2026.

Fri 27/208:20
LCY
-
SDU
2 stops38h 55m
Multiple Airlines
Wed 25/308:15
SDU
-
LCY
2 stops23h 40m
Multiple Airlines
Deal found 9/2£692
Tue 10/316:45
LCY
-
SDU
2 stops27h 00m
Multiple Airlines
Tue 24/308:15
SDU
-
LCY
2 stops28h 55m
Multiple Airlines
Deal found 11/2£696
Wed 25/216:45
LCY
-
SDU
2 stops27h 00m
ITA Airways
Wed 4/308:15
SDU
-
LCY
2 stops23h 40m
ITA Airways
Deal found 9/2£700
Fri 13/316:45
LCY
-
SDU
2 stops30h 30m
ITA Airways
Wed 25/308:15
SDU
-
LCY
3 stops31h 15m
ITA Airways
Deal found 11/2£702
Thu 26/208:20
LCY
-
SDU
2 stops35h 25m
ITA Airways
Wed 25/308:15
SDU
-
LCY
2 stops23h 40m
ITA Airways
Deal found 10/2£708
Thu 26/208:20
LCY
-
SDU
2 stops35h 25m
Multiple Airlines
Thu 5/313:50
SDU
-
LCY
2 stops23h 20m
Multiple Airlines
Deal found 10/2£710
Fri 27/216:45
LCY
-
SDU
2 stops30h 30m
Multiple Airlines
Thu 5/308:15
SDU
-
LCY
2 stops28h 55m
Multiple Airlines
Deal found 11/2£714
Sat 28/211:30
LCY
-
SDU
2 stops56h 15m
ITA Airways
Thu 19/308:15
SDU
-
LCY
2 stops23h 40m
ITA Airways
Deal found 11/2£715
Mon 2/306:00
LHR
-
SDU
2 stops28h 15m
Multiple Airlines
Mon 9/317:10
SDU
-
LHR
2 stops26h 30m
Multiple Airlines
Deal found 10/2£715
Thu 4/610:30
LHR
-
SDU
2 stops34h 15m
Multiple Airlines
Tue 9/617:25
SDU
-
LHR
2 stops36h 15m
Multiple Airlines
Deal found 10/2£718
Tue 10/320:15
LHR
-
SDU
1 stop16h 10m
LATAM Airlines
Tue 17/318:25
SDU
-
LHR
1 stop16h 40m
LATAM Airlines
Deal found 10/2£720
Wed 4/308:20
LCY
-
SDU
2 stops35h 25m
ITA Airways
Thu 19/313:50
SDU
-
LCY
2 stops23h 20m
ITA Airways
Deal found 9/2£722

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 12 February 2026.

Round-trip from

£692

One-way from

£429

Popular in

July

Cheapest in

September

Average price

£877
27/2-25/3
  • 27/2-25/3
  • 4 total stops
  • 62h 35m total
  • London to Rio de Janeiro
Search Deals
20/4
  • 20/4
  • 2 total stops
  • 19h 10m total
  • London to Rio de Janeiro
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£191 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£31 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 12 February 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

LCY - SDU

LCYSDU

London City

Fri 27/2

08:20-20:15

2 stops38h 55m

Rio de Janeiro Santos Dumont

Wed 25/3

08:15-10:55

2 stops23h 40m

£692

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Thu 26/2

08:20-16:45

2 stops35h 25m

Rio de Janeiro Santos Dumont

Thu 5/3

13:50-16:10

2 stops23h 20m

£710

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Fri 27/2

16:45-20:15

2 stops30h 30m

Rio de Janeiro Santos Dumont

Thu 5/3

08:15-16:10

2 stops28h 55m

£714

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Sat 28/2

11:30-16:45

2 stops56h 15m

Rio de Janeiro Santos Dumont

Thu 19/3

08:15-10:55

2 stops23h 40m

£715

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Wed 4/3

08:20-16:45

2 stops35h 25m

Rio de Janeiro Santos Dumont

Thu 19/3

13:50-16:10

2 stops23h 20m

£722

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Fri 27/2

08:20-20:15

2 stops38h 55m

Rio de Janeiro Santos Dumont

Fri 27/3

09:50-10:55

2 stops22h 05m

£725

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Mon 9/3

08:20-16:45

2 stops35h 25m

Rio de Janeiro Santos Dumont

Mon 16/3

13:50-16:10

2 stops23h 20m

£733

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Fri 13/3

19:05-11:10

3 stops43h 05m

Rio de Janeiro Santos Dumont

Wed 25/3

08:15-18:30

3 stops31h 15m

£736

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Mon 16/3

08:20-07:40

2 stops50h 20m

Rio de Janeiro Santos Dumont

Fri 27/3

08:15-10:55

2 stops23h 40m

£740

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Wed 11/3

07:40-16:45

2 stops36h 05m

Rio de Janeiro Santos Dumont

Wed 18/3

13:50-21:20

2 stops28h 30m

£742

Flights are sorted by cheapest return flights first.

Deals found on 12/2

Showing 1-10 of 57 results
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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
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 12 February 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
1,921 reviews
Check prices

Comfort

7.3

Overall

7.5

Boarding

7.5

Entertainment

7.0

Food

6.7

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
1,921 reviews
LATAM Airlines
7.5
Good
1,921 reviews
Check prices

Comfort

7.3

Overall

7.5

Boarding

7.5

Entertainment

7.0

Food

6.7

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 ITA Airways, United Airlines, and Turkish Airlines fly from London to Rio de Janeiro Santos Dumont Airport in about 25h 45m. The time it takes to get you to your destination can typically vary by up to 30h 30m. 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 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

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

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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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