Are there nonstop flights from Jakarta (CGK) to Xi'an (XIY)?

No. The fastest connection is via Nanning, about 6h 19m of total flying time.

What is the fastest connection from Jakarta (CGK) to Xi'an (XIY)?

via Nanning ≈ 6h 19m, via Ho Chi Minh City ≈ 6h 19m, via Hanoi ≈ 6h 21m (estimated flying time, excluding layovers).

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

Soekarno-Hatta International Airport (CGK) to Xi'an Xianyang International Airport (XIY)・4,516 km

No nonstop flights. The fastest connection is via Nanning (NNG), about 6h 19m of flying time (layover not included).

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

None.

25 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.