Are there nonstop flights from Seoul (ICN) to Perth (PER)?

No. The fastest connection is via Manila, about 10h 11m of total flying time.

What is the fastest connection from Seoul (ICN) to Perth (PER)?

via Manila ≈ 10h 11m, via Bali (Denpasar) ≈ 10h 14m, via Hong Kong ≈ 10h 32m (estimated flying time, excluding layovers).

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

Incheon International Airport (ICN) to Perth International Airport (PER)・7,794 km

No nonstop flights. The fastest connection is via Manila (MNL), about 10h 11m of flying time (layover not included).

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

None.

15 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.