This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $311 fare is the cheapest current round-trip from Porto (OPO) to STR on Lufthansa flight LH1789, departing 2026-08-23 at 06:20 with return on 2026-08-30.

Clicking "Book this flight" opens Kiwi.com with this exact flight pre-filtered — same airline, same dates, same passenger count.