Are there nonstop flights from Osaka (KIX) to Sanya (SYX)?

No. The fastest connection is via Xiamen, about 4h 40m of total flying time.

What is the fastest connection from Osaka (KIX) to Sanya (SYX)?

via Xiamen ≈ 4h 40m, via Hong Kong ≈ 4h 41m, via Shenzhen ≈ 4h 41m (estimated flying time, excluding layovers).

from 11,500 ANA miles, from 15,000 JAL miles (economy, one way, based on the published award charts).

Kansai International Airport (KIX) to Sanya Phoenix International Airport (SYX)・3,121 km

No nonstop flights. The fastest connection is via Xiamen (XMN), about 4h 40m of flying time (layover not included).

With milesANA 11,500 miles+ (via SZX)JAL 15,000 miles+ (via PVG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

20 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.