AirHint found the following cheapest return flights from Busan (PUS) to Istanbul (IST) in August 2025 (see full year).

Return flights

20 Aug - 26 Aug	Shanghai Airlines
23 Aug - 27 Aug	Korean Air
22 Aug - 27 Aug	Korean Air
18 Aug - 25 Aug	Korean Air
25 Aug - 15 Sep	Korean Air
02 Aug - 18 Aug	China Eastern
15 Aug - 18 Aug	T'way Air
29 Aug - 06 Sep	Korean Air
17 Aug - 23 Aug	Korean Air
11 Aug - 23 Aug	Korean Air
16 Aug - 23 Aug	Korean Air
15 Aug - 23 Aug	Korean Air
31 Aug - 06 Sep	Korean Air

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

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 August from $833

Return flights