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Cheap flights from London to São Tomé from £689

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TMS
3 Jul — 10 Jul1
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 3 June 2026.

Sat 14/1106:00
LHR
-
TMS
1 stop11h 30m
TAP AIR PORTUGAL
Wed 2/1220:00
TMS
-
LHR
2 stops19h 30m
TAP AIR PORTUGAL
Deal found 30/5£938
Tue 27/1020:10
LGW
-
TMS
2 stops22h 05m
Multiple Airlines
Sat 31/1022:25
TMS
-
LGW
2 stops35h 40m
Multiple Airlines
Deal found 31/5£955
Sat 14/1106:00
LHR
-
TMS
1 stop11h 30m
TAP AIR PORTUGAL
Fri 4/1220:00
TMS
-
LHR
2 stops15h 25m
TAP AIR PORTUGAL
Deal found 30/5£973
Sat 14/1116:35
LGW
-
TMS
2 stops25h 40m
TAP AIR PORTUGAL
Wed 2/1220:00
TMS
-
LGW
2 stops19h 05m
TAP AIR PORTUGAL
Deal found 30/5£973
Tue 27/1010:40
LGW
-
TMS
2 stops31h 35m
TAP AIR PORTUGAL
Sat 31/1022:25
TMS
-
LGW
2 stops35h 40m
TAP AIR PORTUGAL
Deal found 31/5£991
Sat 14/1116:35
LGW
-
TMS
2 stops25h 40m
TAP AIR PORTUGAL
Fri 4/1220:00
TMS
-
LGW
2 stops19h 45m
TAP AIR PORTUGAL
Deal found 2/6£1,009
Tue 27/1013:40
LHR
-
TMS
1 stop28h 35m
TAP AIR PORTUGAL
Sat 31/1022:25
TMS
-
LHR
1 stop14h 15m
TAP AIR PORTUGAL
Deal found 31/5£1,012
Mon 14/921:15
LGW
-
TMS
3 stops45h 30m
TAP AIR PORTUGAL
Sun 20/919:40
TMS
-
LGW
2 stops13h 05m
TAP AIR PORTUGAL
Deal found 1/6£1,032
Sat 12/913:45
LHR
-
TMS
1 stop29h 00m
TAP AIR PORTUGAL
Fri 18/919:40
TMS
-
LHR
1 stop13h 40m
TAP AIR PORTUGAL
Deal found 31/5£1,078
Mon 14/918:45
LHR
-
TMS
2 stops47h 45m
Multiple Airlines
Sun 20/918:20
TMS
-
LHR
2 stops27h 35m
Multiple Airlines
Deal found 1/6£1,111

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 3 June 2026.

Round-trip from

£938

One-way from

£689

Popular in

December

Cheapest in

April

Average price

£974
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 14/11-2/12
  • 3 total stops
  • 31h 00m total
  • London to São Tomé
Search Deals
15/8
  • 15/8
  • 3 total stops
  • 27h 35m total
  • London to São Tomé
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£79 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
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 3 June 2026.
Use the filters below to find and compare flights from London to São Tomé that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Sat 14/11

06:00-17:30

1 stop11h 30m

Sao Tome Is

Wed 2/12

20:00-15:30

2 stops19h 30m

£938

LondonSão Tomé

LGW - TMS

LGWTMS

London Gatwick

Sat 14/11

16:35-18:15

2 stops25h 40m

Sao Tome Is

Wed 2/12

20:00-15:05

2 stops19h 05m

£973

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Sat 14/11

06:00-17:30

1 stop11h 30m

Sao Tome Is

Fri 4/12

20:00-21:35

2 stops25h 35m

£974

LondonSão Tomé

LGW - TMS

LGWTMS

London Gatwick

Sat 14/11

16:35-18:15

2 stops25h 40m

Sao Tome Is

Fri 4/12

20:00-15:45

2 stops19h 45m

£1,009

LondonSão Tomé

LGW - TMS

LGWTMS

London Gatwick

Sat 12/9

16:30-17:45

1 stop26h 15m

Sao Tome Is

Fri 18/9

19:40-11:20

2 stops14h 40m

£1,088

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Thu 5/11

19:55-18:15

2 stops22h 20m

Sao Tome Is

Sun 8/11

20:00-12:40

2 stops16h 40m

£1,134
Cheapest one-way

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Sat 15/8

15:10-17:45

3 stops27h 35m

£689

LondonSão Tomé

LGW - TMS

LGWTMS

London Gatwick

Sat 15/8

17:25-17:45

2 stops25h 20m

£762
Fastest single journey

LondonSão Tomé

LHR - TMS

LHRTMS

London Heathrow

Sat 15/8

06:00-17:25

1 stop12h 25m

£798

LondonSão Tomé

LGW - TMS

LGWTMS

London Gatwick

Sat 15/8

16:30-17:45

1 stop26h 15m

£873

Flights are sorted by cheapest return flights first.

Deals found on 2/6

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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

What is the cheapest month to book a flight from London to São Tomé?

Currently, November is the cheapest month in which you can book a flight from London to São Tomé (average of £705). Flying from London to São Tomé in January is currently the most expensive (average of £1,056). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from London to São Tomé?

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 3 June 2026.
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
2,266 reviews
Check prices

Comfort

7.1

Overall

7.2

Crew

7.8

Entertainment

6.3

Food

6.2

Boarding

7.0

Reviews

1 / 20
10.0
Excellent

Melanie,May 2026

ORD - LIS

Seat was comfortable. Food was really good. Service from crew was great. They were really nice and solicitous.
TAP AIR PORTUGAL
7.2
Good
2,266 reviews
TAP AIR PORTUGAL
7.2
Good
2,266 reviews
Check prices

Comfort

7.1

Overall

7.2

Crew

7.8

Entertainment

6.3

Food

6.2

Boarding

7.0

Reviews

1 / 20
10.0
Excellent

Melanie,May 2026

ORD - LIS

Seat was comfortable. Food was really good. Service from crew was great. They were really nice and solicitous.

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 11h 30m. 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 £732. Users have found that TAP AIR PORTUGAL is 28% 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 Gatwick - Sao Tome Is or London City - Sao Tome Is, London Heathrow - 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.

  • What is the cheapest month to book a flight from London to São Tomé?

    Currently, November is the cheapest month in which you can book a flight from London to São Tomé (average of £705). Flying from London to São Tomé in January is currently the most expensive (average of £1,056). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to São Tomé

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to São Tomé flights
Gatwick 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 3 June 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest£732Average£854FlexibilityNo 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.

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