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

Return flights

10 Dec - 16 Dec	Eastar Jet
18 Dec - 24 Dec	Korean Air
16 Dec - 19 Dec	Korean Air
15 Dec - 19 Dec	Korean Air
10 Dec - 17 Dec	Korean Air
11 Dec - 24 Dec	Korean Air
08 Dec - 12 Dec	Korean Air
14 Dec - 19 Dec	Korean Air
22 Dec - 24 Dec	Korean Air
26 Dec - 02 Jan	Korean Air
25 Dec - 02 Jan	Korean Air
07 Dec - 09 Dec	EVA Air
27 Dec - 02 Jan	Singapore Airlines
29 Dec - 10 Jan	Philippine Airlines
27 Dec - 03 Jan	Philippine Airlines

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

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 December from 541€

Return flights