This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $445 fare is the cheapest current round-trip from Lisbon (LIS) to HOR on S4 flight S4131, departing 2026-07-18 at 08:55 with return on 2026-07-26.

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