Are there nonstop flights from Shenzhen (SZX) to Guangyuan (GYS)?

Yes. China Southern Airlines fly this route. Flight time is about 2h 5m.

What is the fastest connection from Shenzhen (SZX) to Guangyuan (GYS)?

via Changsha ≈ 2h 45m, via Guiyang ≈ 2h 46m, via Nanning ≈ 3h (estimated flying time, excluding layovers).

from 10,000 ANA miles (economy, one way, based on the published award charts).

Shenzhen Bao'an International Airport (SZX) to Guangyuan Panlong Airport (GYS)・1,346 km

Nonstop flights available (1 airline). Flight time about 2h 5m. Nonstop return flights also operate.

With milesANA 10,000 miles+ (via HGH)Economy, one way, estimate. Tap a connection for miles by cabin.

14 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.