For the cheapest flights to Athens book 44 days before departure.
The most popular airlines on the route Sofia - Athens: Ryanair (FR), Aegean (A3), Bulgaria Air (FB).
The cheapest flights are on the route Sofia Airport (SOF) - Eleftherios Venizelos (ATH).
Direct flights last about 1h 18min.
Direct flights are available 7 days a week.
Direct flights: Ryanair (FR), Aegean (A3), Bulgaria Air (FB).