Are there nonstop flights from Jiamusi (JMU) to Shenzhen (SZX)?

Yes. China Southern Airlines fly this route. Flight time is about 4h 7m.

What is the fastest connection from Jiamusi (JMU) to Shenzhen (SZX)?

via Nanjing ≈ 4h 38m, via Yantai ≈ 4h 38m, via Qingdao ≈ 4h 38m (estimated flying time, excluding layovers).

from 10,000 ANA miles, from 15,000 JAL miles (economy, one way, based on the published award charts).

Jiamusi Songjiang International Airport (JMU) to Shenzhen Bao'an International Airport (SZX)・3,077 km

Nonstop flights available (1 airline). Flight time about 4h 7m. Nonstop return flights also operate.

With milesANA 10,000 miles+ (via PVG)JAL 15,000 miles+ (via TAO)Economy, one way, estimate. Tap a connection for miles by cabin.

13 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.