The cheapest flight to Sofia you can get by boooking 30 days before departure.
The most popular airlines on the route Venice - Sofia: Ryanair (FR), Turkish Airlines (TK), Lufthansa (LH).
The cheapest flights you can book on the route Treviso Sant'Angelo (TSF) - Sofia Airport (SOF).
Direct flights last about 1h 55min.
Direct flights available 2 days a week - Monday, Friday.
Direct flights: Ryanair (FR).