The cheapest flight to Sofia you can get by boooking 56 days before departure.
The most popular airlines on the route Hamburg - Sofia: Ryanair (FR), Lufthansa (LH), LOT (LO).
The cheapest flights you can book on the route Fuhlsbuttel (HAM) - Sofia Airport (SOF).
Direct flights last about 2h 35min.
Direct flights available 3 days a week - Tuesday, Thursday, Saturday.
Direct flights: Ryanair (FR).