Are there nonstop flights from Zurich (ZRH) to Osaka (KIX)?

No. The fastest connection is via Munich, about 12h 10m of total flying time.

What is the fastest connection from Zurich (ZRH) to Osaka (KIX)?

via Munich ≈ 12h 10m, via Helsinki ≈ 12h 12m, via Seoul ≈ 12h 18m (estimated flying time, excluding layovers).

from 31,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Zürich Airport (ZRH) to Kansai International Airport (KIX)・9,476 km

No nonstop flights. The fastest connection is via Munich (MUC), about 12h 10m of flying time (layover not included).

With milesANA 31,000 miles+ (via MUC)JAL 37,000 miles+ (via HEL)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

18 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.