Are there nonstop flights from Sanya (SYX) to Jakarta (CGK)?

No. The fastest connection is via Singapore, about 4h 21m of total flying time.

What is the fastest connection from Sanya (SYX) to Jakarta (CGK)?

via Singapore ≈ 4h 21m, via Phnom Penh ≈ 4h 22m, via Kuala Lumpur ≈ 4h 36m (estimated flying time, excluding layovers).

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

Sanya Phoenix International Airport (SYX) to Soekarno-Hatta International Airport (CGK)・2,733 km

No nonstop flights. The fastest connection is via Singapore (SIN), about 4h 21m 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.

14 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.