Are there nonstop flights from Lanzhou (LHW) to Singapore (SIN)?

Yes. Hainan Airlines fly this route. Flight time is about 5h 6m.

What is the fastest connection from Lanzhou (LHW) to Singapore (SIN)?

via Chengdu ≈ 5h 36m, via Kunming ≈ 5h 37m, via Vientiane ≈ 5h 37m (estimated flying time, excluding layovers).

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

Lanzhou Zhongchuan International Airport (LHW) to Singapore Changi Airport (SIN)・3,910 km

Nonstop flights available (1 airline). Flight time about 5h 6m. Nonstop return flights also operate.

With milesANA 18,000 miles+ (via TFU)JAL 23,000 miles+ (via KMG)Economy, one way, estimate. Tap a connection for miles by cabin.

40 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.