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Cheap flights from London to Rio de Janeiro Santos Dumont Airport, Brazil from £434

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SDU
16 Jul — 23 Jul1
1 adult

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 11 July 2025.

Round-trip from

£759

One-way from

£434

Popular in

December

Cheapest in

January

Average price

£1,103
LATAM Airlines
  • LATAM Airlines
  • 3/9-17/9
  • 3 total stops
  • 54h 00m total
  • London to Rio de Janeiro
6/9
  • 6/9
  • 2 total stops
  • 27h 00m total
  • London to Rio de Janeiro
Highest demand for flights based on searches. 7% potential increase in price (£58 potential increase over avg. return price).
Cheapest flight prices on average. 8% potential price decrease (£52 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from London to Santos Dumont

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 11 July 2025.

Wed 3/921:20LHR - SDU
1 stop16h 15mLATAM Airlines
Wed 17/921:20SDU - LHR
2 stops37h 45mLATAM Airlines
Deal found 9/7£759
Fri 14/1113:25LHR - SDU
2 stops27h 55mAir Canada
Sun 30/1115:00SDU - LHR
2 stops37h 10mAir Canada
Deal found 10/7£762
Fri 7/1116:45LCY - SDU
2 stops45h 20mITA Airways
Mon 17/1107:50SDU - LCY
2 stops24h 05mITA Airways
Deal found 10/7£765
Sat 22/1110:00LGW - SDU
2 stops28h 05mMultiple Airlines
Fri 28/1111:25SDU - LGW
2 stops18h 35mMultiple Airlines
Deal found 10/7£773
Wed 15/1006:00LHR - SDU
2 stops20h 25mMultiple Airlines
Mon 27/1015:45SDU - LHR
1 stop19h 20mMultiple Airlines
Deal found 9/7£783
Wed 3/912:05LGW - SDU
2 stops48h 35mITA Airways
Wed 17/907:55SDU - LGW
2 stops47h 20mITA Airways
Deal found 9/7£818
Wed 5/1110:00LGW - SDU
2 stops31h 20mAir Europa
Wed 19/1107:50SDU - LGW
2 stops29h 35mAir Europa
Deal found 11/7£854
Mon 1/910:55LGW - SDU
2 stops25h 45mTurkish Airlines
Tue 30/911:25SDU - LGW
2 stops42h 30mTurkish Airlines
Deal found 10/7£882
Thu 18/908:45LCY - SDU
3 stops33h 35mMultiple Airlines
Sat 18/1011:25SDU - LCY
3 stops45h 05mMultiple Airlines
Deal found 9/7£891

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 11 July 2025.
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

Wed 3/9

21:20-09:35

1 stop16h 15m

Rio de Janeiro Santos Dumont

Wed 17/9

21:20-15:05

2 stops37h 45m

£759

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Fri 7/11

16:45-11:05

2 stops45h 20m

Rio de Janeiro Santos Dumont

Mon 17/11

07:50-10:55

2 stops24h 05m

£765

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Mon 22/9

17:25-08:40

2 stops19h 15m

Rio de Janeiro Santos Dumont

Wed 1/10

08:20-09:00

2 stops20h 40m

£782

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Mon 8/9

06:00-20:25

2 stops18h 25m

Rio de Janeiro Santos Dumont

Thu 18/9

11:25-15:35

2 stops24h 10m

£791

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Wed 3/9

12:05-08:40

2 stops48h 35m

Rio de Janeiro Santos Dumont

Wed 17/9

07:55-11:15

2 stops47h 20m

£818

LondonRio de Janeiro

LHR - SDU

LHRSDU

London Heathrow

Wed 1/10

08:30-14:20

2 stops33h 50m

Rio de Janeiro Santos Dumont

Wed 15/10

08:20-09:35

2 stops45h 15m

£868

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Mon 1/9

10:55-08:40

2 stops25h 45m

Rio de Janeiro Santos Dumont

Tue 30/9

11:25-09:55

2 stops42h 30m

£882

LondonRio de Janeiro

LCY - SDU

LCYSDU

London City

Thu 18/9

08:45-14:20

3 stops33h 35m

Rio de Janeiro Santos Dumont

Sat 18/10

11:25-12:30

3 stops45h 05m

£891

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Thu 25/9

17:25-14:20

2 stops24h 55m

Rio de Janeiro Santos Dumont

Thu 18/12

11:25-16:25

2 stops26h 00m

£918

LondonRio de Janeiro

LGW - SDU

LGWSDU

London Gatwick

Sat 6/9

14:00-13:00

2 stops27h 00m

£434

Flights are sorted by cheapest return flights first.

Deals found on 11/7

Showing 1-10 of 20 results
1
2

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

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

Find hourly flight availability from London 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 11 July 2025.

When flying from London to Rio de Janeiro Santos Dumont Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 4% versus a flight in the morning.

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 11 July 2025.
Read through reviews of airlines operating flights from London to Rio de Janeiro Santos Dumont Airport, such as LATAM Airlines, United Airlines, andTurkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

Overall

7.5

Boarding

7.6

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

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.
  • What are the cheapest airlines flying from London to Rio de Janeiro Santos Dumont Airport round-trip?

    Currently priced at £759, 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. Search Cheapflights for deals from ITA Airways and Air Canada - these airlines can fly you to your destination from £799 and £868, respectively. You may be able to fly from London to Rio de Janeiro Santos Dumont Airport for 20% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from London to Rio de Janeiro Santos Dumont Airport one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at £460. ITA Airways flights start at £572 while deals on LATAM Airlines start at £636 one-way.

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

  • 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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