Are there nonstop flights from Osaka (KIX) to Venice (VCE)?

No. The fastest connection is via Munich, about 12h 15m of total flying time.

What is the fastest connection from Osaka (KIX) to Venice (VCE)?

via Munich ≈ 12h 15m, via Helsinki ≈ 12h 16m, via Beijing ≈ 12h 20m (estimated flying time, excluding layovers).

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

Kansai International Airport (KIX) to Venice Marco Polo Airport (VCE)・9,438 km

No nonstop flights. The fastest connection is via Munich (MUC), about 12h 15m of flying time (layover not included).

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

None.

10 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.