Are there nonstop flights from Doha (DOH) to Changsha (CSX)?

No. The fastest connection is via Chongqing, about 8h 8m of total flying time.

What is the fastest connection from Doha (DOH) to Changsha (CSX)?

via Chongqing ≈ 8h 8m, via Chengdu ≈ 8h 8m, via Kathmandu ≈ 8h 10m (estimated flying time, excluding layovers).

from 37,000 JAL miles (economy, one way, based on the published award charts).

Hamad International Airport (DOH) to Changsha Huanghua International Airport (CSX)・6,061 km

No nonstop flights. The fastest connection is via Chongqing (CKG), about 8h 8m of flying time (layover not included).

With milesJAL 37,000 miles+ (via KUL)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

22 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.