Cheap flights from Lisbon to São Tomé from £239

The cheapest month to fly to São Tomé from Lisbon is in February. Flight prices, which tend to average around £492, are often lower during this time because this is during the off-season. If you aren’t able to travel to São Tomé during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of £506.

The cheapest day to depart on your flight to São Tomé is on a Thursday when prices can be found for as low as £492. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Lisbon to São Tomé for around £824.

Our most recent data shows that the best time of day to fly to São Tomé is in the morning. Flights from Lisbon to São Tomé during this time can be as low as £658. Flights to São Tomé are more costly in the evening, with an average ticket price of £723. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Lisbon Humberto Delgado to Sao Tome Is for the best Lisbon Humberto Delgado - Sao Tome Is flight prices

You are more likely to see cheaper flights to São Tomé from Lisbon when booking weeks ahead of your departure date. In general, you can expect to find flights to São Tomé for around £586 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to São Tomé from Lisbon for as low as £538 on momondo.

You could potentially save up to 23% on your flight if you consider stops on a Lisbon to São Tomé flight.

As of April 2026, prices for Lisbon to São Tomé flights are approximately 5% more expensive when compared to flights at the same time last year.

TAAG, STP Airways, and TAP AIR PORTUGAL are the most popular carriers operating from Lisbon Humberto Delgado to Sao Tome Is

TAP AIR PORTUGAL, TAAG and STP Airways are the top three most popular airlines that fly to São Tomé from Lisbon according to our data. TAP AIR PORTUGAL is the first choice among our users, with 40% of people opting to fly with this airline when travelling to São Tomé. Keep in mind that there are 4 different airlines that fly to São Tomé on a routine basis, so you have a few additional options to choose from.

Historically, on average around 46% of flights between Lisbon and São Tomé have experienced a delay on any given week. The average delay length over the past 12 months has been 121 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, TAP AIR PORTUGAL have had the fewest delays on this route over the last 12 months, with about 37% of their flights experiencing any sort of delay.