Are there nonstop flights from Lanzhou (LHW) to Bishkek (BSZ)?

No. The fastest connection is via Ürümqi, about 4h 7m of total flying time.

What is the fastest connection from Lanzhou (LHW) to Bishkek (BSZ)?

via Ürümqi ≈ 4h 7m, via Chengdu ≈ 5h 21m, via Beijing ≈ 6h 28m (estimated flying time, excluding layovers).

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

Lanzhou Zhongchuan International Airport (LHW) to Manas International Airport (BSZ)・2,580 km

No nonstop flights. The fastest connection is via Ürümqi (URC), about 4h 7m of flying time (layover not included).

With milesANA 18,000 miles+ (via PEK)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

4 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.