Cheapest return flights from Seoul to Istanbul in October from $440

AirHint found the following cheapest return flights from Seoul (ICN) to Istanbul (IST) in October 2025 (see full year).

Return flights

13 Oct - 19 Oct China Eastern
13 Oct - 20 Oct China Eastern
14 Oct - 21 Oct MIAT Mongolian Airlines
21 Oct - 30 Oct MIAT Mongolian Airlines
19 Oct - 25 Oct China Eastern
21 Oct - 02 Nov Air China
25 Oct - 02 Nov Air China
16 Oct - 22 Oct Etihad Airways
16 Oct - 20 Oct Etihad Airways
23 Oct - 19 Nov Etihad Airways
29 Oct - 05 Nov Etihad Airways
23 Oct - 27 Oct Etihad Airways
14 Oct - 22 Oct Etihad Airways
21 Oct - 29 Oct Etihad Airways
21 Oct - 04 Nov Etihad Airways
23 Oct - 03 Nov Etihad Airways
24 Oct - 06 Nov China Southern
20 Oct - 20 Nov China Southern
30 Oct - 15 Nov China Southern
22 Oct - 06 Nov China Southern

Also check the deals for one-way flights from Seoul to Istanbul in October.

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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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