AirHint found the following cheapest return flights from Busan (PUS) to Istanbul (IST) in September 2026 (see full year).

Return flights

17 Sep - 27 Sep	Singapore Airlines
13 Sep - 19 Sep	Korean Air
09 Sep - 18 Sep	Korean Air
11 Sep - 19 Sep	Korean Air
25 Sep - 02 Oct	Korean Air
28 Sep - 09 Oct	Vietnam Airlines
19 Sep - 27 Sep	Singapore Airlines

Also check the deals for one-way flights from Busan to Istanbul in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Busan to Istanbul in September from $920

Return flights