The cheapest flight to Prague you can get by boooking 44 days before departure.
The most popular airlines on the route Sofia - Prague: Bulgaria Air (FB), KLM (KL), Turkish Airlines (TK).
The cheapest flights you can book on the route Sofia Airport (SOF) - Ruzyne (PRG).
Direct flights last about 1h 50min.
Direct flights available 5 days a week - Monday, Tuesday, Thursday, Friday, Sunday.
Direct flights: Czech Airlines (OK), Bulgaria Air (FB).