Lisbon (LIS) to Sao Tome (TMS): 2,837 miles (4,566 km) great-circle, about 6h 10m nonstop by our estimate. Cheapest fare observed: $713 round-trip on TAAG Angola Airlines, with 1 stop, departing May 14, 2026.
$713 round-trip, TAAG Angola Airlines DT651, departing 2026-05-14 at 09:10, returning 2026-06-12. The recorded itinerary left on a Thursday, returning on a Friday 29 nights later; the fare was observed 19 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $713, it ranked 25th of the 30 round-trip fares we recorded from LIS (median $251). That is 25.1 cents per great-circle mile (round-trip price over one-way distance), above the LIS median of 18.5 cents across 30 round-trip routes.
Routes from LIS of similar length: Yerevan (2,813 mi) at $298 and Kazan (2,876 mi) at $727.
TAAG Angola Airlines had the cheapest fare on 2 of 30 LIS routes. It is the 5th longest of the 30 routes we track from LIS.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/Lisbon, Africa/Sao_Tome; flight time is our estimate.