Are there nonstop flights from Istanbul (IST) to Busan (PUS)?

No. The fastest connection is via Seoul, about 10h 43m of total flying time.

What is the fastest connection from Istanbul (IST) to Busan (PUS)?

via Seoul ≈ 10h 43m, via Ulaanbaatar ≈ 10h 43m, via Beijing ≈ 10h 44m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

İstanbul Airport (IST) to Gimhae International Airport (PUS)・8,258 km

No nonstop flights. The fastest connection is via Seoul (ICN), about 10h 43m of flying time (layover not included).

With milesANA 30,000 miles+ (via PEK)JAL 37,000 miles+ (via ICN)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

17 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.