Are there nonstop flights from Sapporo (CTS) to Melbourne (MEL)?

No. The fastest connection is via Tokyo, about 11h 33m of total flying time.

What is the fastest connection from Sapporo (CTS) to Melbourne (MEL)?

via Tokyo ≈ 11h 33m, via Sydney ≈ 11h 56m, via Manila ≈ 12h 48m (estimated flying time, excluding layovers).

from 25,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

New Chitose Airport (CTS) to Melbourne Airport (MEL)・8,951 km

No nonstop flights. The fastest connection is via Tokyo (NRT), about 11h 33m of flying time (layover not included).

With milesANA 25,000 miles+ (via SIN)JAL 37,000 miles+ (via SYD)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

9 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.