Are there nonstop flights from Shaoyang (WGN) to Bangkok (BKK)?

No. The fastest connection is via Haikou, about 3h 22m of total flying time.

What is the fastest connection from Shaoyang (WGN) to Bangkok (BKK)?

via Haikou ≈ 3h 22m, via Shenzhen ≈ 3h 40m, via Chengdu ≈ 4h 4m (estimated flying time, excluding layovers).

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

Shaoyang Wugang Airport (WGN) to Suvarnabhumi Airport (BKK)・1,786 km

No nonstop flights. The fastest connection is via Haikou (HAK), about 3h 22m of flying time (layover not included).

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

None.

6 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.