This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $150 fare is the cheapest current round-trip from Sofia (SOF) to ATH on A3 flight A3981, departing 2026-08-22 at 10:55 with return on 2026-08-28.

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