Are there nonstop flights from Osaka (KIX) to Shanghai (SHA)?

No. The fastest connection is via Seoul, about 3h of total flying time.

What is the fastest connection from Osaka (KIX) to Shanghai (SHA)?

via Seoul ≈ 3h, via Qingdao ≈ 3h 19m, via Tokyo ≈ 3h 35m (estimated flying time, excluding layovers).

from 8,500 ANA miles, from 11,000 JAL miles (economy, one way, based on the published award charts).

Kansai International Airport (KIX) to Shanghai Hongqiao International Airport (SHA)・1,347 km

No nonstop flights. The fastest connection is via Seoul (GMP), about 3h of flying time (layover not included).

With milesANA 8,500 miles+ (via HND)JAL 11,000 miles+ (via HND)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

8 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.