Are there nonstop flights from Osaka (KIX) to Amsterdam (AMS)?

Yes. KLM fly this route. Flight time is about 11h 22m.

What is the fastest connection from Osaka (KIX) to Amsterdam (AMS)?

via Helsinki ≈ 11h 53m, via Seoul ≈ 12h 5m, via Beijing ≈ 12h 17m (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 Amsterdam Airport Schiphol (AMS)・9,241 km

Nonstop flights available (1 airline). Flight time about 11h 22m. Nonstop return flights also operate.

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

24 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.