Are there nonstop flights from Singapore (SIN) to Ji'an (JGS)?

No. The fastest connection is via Haikou, about 4h 36m of total flying time.

What is the fastest connection from Singapore (SIN) to Ji'an (JGS)?

via Haikou ≈ 4h 36m, via Nanning ≈ 4h 47m, via Xiamen ≈ 5h 1m (estimated flying time, excluding layovers).

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

Singapore Changi Airport (SIN) to Jinggangshan Airport (JGS)・3,059 km

No nonstop flights. The fastest connection is via Haikou (HAK), about 4h 36m of flying time (layover not included).

With milesANA 18,000 miles+ (via PEK)JAL 23,000 miles+ (via KMG)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.