This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $245 fare is the cheapest current round-trip from Sofia (SOF) to ZRH on Swiss flight LX1391, departing 2026-05-15 at 15:50 with return on 2026-05-22.

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