Find flights
When to book
Airlines
FAQs

Cheap flights from London to São Tomé from £621

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TMS
27 Jan — 3 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to São Tomé

Enter your travel dates to find the best prices.

Cheapest flights from London to São Tomé
Explore the most affordable flight options available from London to São Tomé. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 December 2025.

Sat 27/1206:00LHR - TMS
1 stop11h 30mTAP AIR PORTUGAL
Sat 10/122:25TMS - LHR
1 stop14h 15mTAP AIR PORTUGAL
Deal found 25/12£2,119
Sat 27/1216:35LGW - TMS
2 stops25h 30mTAP AIR PORTUGAL
Sat 10/122:25TMS - LGW
1 stop11h 25mTAP AIR PORTUGAL
Deal found 26/12£2,568
Sat 27/1213:55LHR - TMS
3 stops28h 10mMultiple Airlines
Sat 10/122:25TMS - LHR
2 stops32h 15mMultiple Airlines
Deal found 26/12£4,999

Find flight deals from London to São Tomé

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to São Tomé (TMS). 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 28 December 2025.

Round-trip from

£621

Popular in

April

Cheapest in

November

Average price

£1,379
10/3-15/3
  • 10/3-15/3
  • 4 total stops
  • 33h 10m total
  • London to São Tomé
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£72 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£39 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to São Tomé 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 28 December 2025.
Use the filters below to find and compare flights from London to São Tomé that are best for you.

Fly from

London

Fly to

São Tomé

Route

Depart

Return

Price

LondonSão Tomé

LGW - TMS

LGWTMS

London Gatwick

Tue 10/3

16:05-12:10

2 stops20h 05m

Sao Tome Is

Sun 15/3

20:00-09:05

2 stops13h 05m

£621

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Tue 10/3

18:30-18:05

2 stops23h 35m

Sao Tome Is

Sun 15/3

20:00-22:40

2 stops26h 40m

£761

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Tue 5/5

19:50-17:40

2 stops22h 50m

Sao Tome Is

Sat 16/5

21:35-17:45

1 stop19h 10m

£857

LondonSão Tomé

LGW - TMS

LGWTMS

London Gatwick

Tue 10/3

21:20-18:05

3 stops20h 45m

Sao Tome Is

Sun 15/3

20:00-20:35

3 stops48h 35m

£883

LondonSão Tomé

LGW - TMS

LGWTMS

London Gatwick

Fri 27/2

21:25-18:05

3 stops44h 40m

Sao Tome Is

Sun 8/3

20:00-09:50

2 stops13h 50m

£920

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Fri 27/2

18:30-17:30

1 stop23h 00m

Sao Tome Is

Sun 8/3

20:00-12:40

2 stops16h 40m

£1,019

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Sun 8/2

13:40-12:10

2 stops22h 30m

Sao Tome Is

Sun 15/2

20:00-12:40

2 stops16h 40m

£1,173

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Sat 24/1

19:55-18:05

1 stop22h 10m

Sao Tome Is

Sat 31/1

22:25-11:25

1 stop13h 00m

£1,186

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Tue 10/3

06:00-12:10

2 stops30h 10m

Sao Tome Is

Sun 15/3

20:00-12:40

1 stop16h 40m

£1,225

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Sun 11/1

13:30-12:10

2 stops22h 40m

Sao Tome Is

Wed 21/1

20:00-11:25

1 stop15h 25m

£1,339

Flights are sorted by cheapest return flights first.

Deals found on 27/12

Best time to book a flight from London to São Tomé

Have a flexible travel schedule? Discover the best time to fly to São Tomé 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 São Tomé
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing São Tomé

Get insights into the airlines that provide service to São Tomé. 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 São Tomé. Reviews last updated 28 December 2025.
Get a feel of what it's like to fly with TAP AIR PORTUGAL from London to São Tomé by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
TAP AIR PORTUGAL
7.2
Good
2,098 reviews
Check prices

Crew

7.8

Overall

7.2

Boarding

7.0

Food

6.2

Entertainment

6.3

Comfort

7.1

Reviews

1 / 20
8.0
Excellent

Michael,Dec 2025

FNC - LIS

Long wait standing after checking in at the gate Limited juice selection.
TAP AIR PORTUGAL
7.2
Good
2,098 reviews
TAP AIR PORTUGAL
7.2
Good
2,098 reviews
Check prices

Crew

7.8

Overall

7.2

Boarding

7.0

Food

6.2

Entertainment

6.3

Comfort

7.1

Reviews

1 / 20
8.0
Excellent

Michael,Dec 2025

FNC - LIS

Long wait standing after checking in at the gate Limited juice selection.

Related info for your journey

Find useful and relevant information for your journey from London to São Tomé. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to São Tomé from London?

    Most people fly into Sao Tome Is (TMS) if they book a flight to São Tomé from London. On average, Sao Tome Is has 0 inbound flights from London per day from 1 airline. Sao Tome Is is conveniently located just 3.1 mi from São Tomé’s city center.

  • How long is the flight from London to São Tomé?

    TAP AIR PORTUGAL can get you from London to São Tomé in just under 23h 35m. Your travel time can differ by up to . The distance between London and São Tomé is about 3552 mi.

  • What is the cheapest airline to fly from London to São Tomé round-trip?

    Cheapflights users have booked flights from London to São Tomé round-trip from £756. Users have found that TAP AIR PORTUGAL is 27% cheaper than the other options available to this destination.

  • What are the most popular routes from London to São Tomé?

    While some choose either London Heathrow - Sao Tome Is or London City - Sao Tome Is, London Gatwick - Sao Tome Is is the most popular route from London to São Tomé.

  • Can I find deals for flights from London to São Tomé that include hotel bookings?

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

  • How can I find direct flights from London to São Tomé?

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

  • Can I find deals for business class flights from London to São Tomé?

    Yes. Cheapflights offers flight deals from London to São Tomé 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.

Alternative routes for London to São Tomé

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to São Tomé flights
Heathrow to São Tomé flights

Top airline flying from London to São Tomé

Discover the top airline that operate flights from London to São Tomé. 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 28 December 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£756Average£931FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

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 São Tomé?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to São Tomé. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to São Tomé?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to São Tomé from London.

Can Cheapflights find flights from London to São Tomé with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to São Tomé, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to São Tomé become cheaper?

Yes, Cheapflights offers price alerts on London to São Tomé 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.