Are there nonstop flights from Guiyang (KWE) to Istanbul (IST)?

No. The fastest connection is via Chengdu, about 9h 28m of total flying time.

What is the fastest connection from Guiyang (KWE) to Istanbul (IST)?

via Chengdu ≈ 9h 28m, via Ürümqi ≈ 9h 36m, via Xi'an ≈ 10h 4m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Guiyang Longdongbao International Airport (KWE) to İstanbul Airport (IST)・7,149 km

No nonstop flights. The fastest connection is via Chengdu (TFU), about 9h 28m of flying time (layover not included).

With milesANA 30,000 miles+ (via PEK)JAL 37,000 miles+ (via XIY)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.