Are there nonstop flights from Madrid (MAD) to Changsha (CSX)?

No. The fastest connection is via Chongqing, about 12h 51m of total flying time.

What is the fastest connection from Madrid (MAD) to Changsha (CSX)?

via Chongqing ≈ 12h 51m, via Chengdu ≈ 12h 52m, via London ≈ 13h 7m (estimated flying time, excluding layovers).

from 45,000 JAL miles (economy, one way, based on the published award charts).

Adolfo Suárez Madrid–Barajas Airport (MAD) to Changsha Huanghua International Airport (CSX)・9,978 km

No nonstop flights. The fastest connection is via Chongqing (CKG), about 12h 51m of flying time (layover not included).

With milesJAL 45,000 miles+ (via HKG)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.