Are there nonstop flights from Changsha (CSX) to Kota Kinabalu (BKI)?

No. The fastest connection is via Hong Kong, about 3h 56m of total flying time.

What is the fastest connection from Changsha (CSX) to Kota Kinabalu (BKI)?

via Hong Kong ≈ 3h 56m, via Shenzhen ≈ 3h 56m, via Guangzhou ≈ 3h 57m (estimated flying time, excluding layovers).

from 18,000 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

Changsha Huanghua International Airport (CSX) to Kota Kinabalu International Airport (BKI)・2,493 km

No nonstop flights. The fastest connection is via Hong Kong (HKG), about 3h 56m of flying time (layover not included).

With milesANA 18,000 miles+ (via ICN)JAL 23,000 miles+ (via KUL)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.