Are there nonstop flights from Shenzhen (SZX) to Sofia (SOF)?

No. The fastest connection is via Budapest, about 11h 44m of total flying time.

What is the fastest connection from Shenzhen (SZX) to Sofia (SOF)?

via Budapest ≈ 11h 44m, via Tel Aviv ≈ 11h 53m, via Dubai ≈ 12h 3m (estimated flying time, excluding layovers).

from 30,000 ANA miles (economy, one way, based on the published award charts).

Shenzhen Bao'an International Airport (SZX) to Sofia Airport (SOF)・8,355 km

No nonstop flights. The fastest connection is via Budapest (BUD), about 11h 44m of flying time (layover not included).

With milesANA 30,000 miles+ (via FRA)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

15 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.