Are there nonstop flights from Busan (PUS) to Sydney (SYD)?

No. The fastest connection is via Osaka, about 10h 50m of total flying time.

What is the fastest connection from Busan (PUS) to Sydney (SYD)?

via Osaka ≈ 10h 50m, via Taipei ≈ 11h 9m, via Shanghai ≈ 11h 12m (estimated flying time, excluding layovers).

from 27,500 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Gimhae International Airport (PUS) to Sydney Kingsford Smith International Airport (SYD)・8,027 km

No nonstop flights. The fastest connection is via Osaka (KIX), about 10h 50m of flying time (layover not included).

With milesANA 27,500 miles+ (via PEK)JAL 37,000 miles+ (via PVG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

20 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.