Are there nonstop flights from Tumxuk (TWC) to Lanzhou (LHW)?

No. The fastest connection is via Aral, about 3h 33m of total flying time.

What is the fastest connection from Tumxuk (TWC) to Lanzhou (LHW)?

via Aral ≈ 3h 33m, via Korla ≈ 3h 37m, via Aksu ≈ 3h 39m (estimated flying time, excluding layovers).

from 10,000 ANA miles (economy, one way, based on the published award charts).

Tumxuk Tangwangcheng Airport (TWC) to Lanzhou Zhongchuan International Airport (LHW)・2,157 km

No nonstop flights. The fastest connection is via Aral (ACF), about 3h 33m of flying time (layover not included).

With milesANA 10,000 miles+ (via AKU)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

11 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.