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

Return flights

15 Nov - 16 Nov	Air China
06 Nov - 16 Nov	Air China
18 Nov - 28 Nov	Air China
18 Nov - 23 Nov	Air China
15 Nov - 23 Nov	Air China
06 Nov - 09 Nov	Air China
06 Nov - 14 Nov	Air China
11 Nov - 21 Nov	Air China
29 Nov - 07 Dec	Air China
11 Nov - 16 Nov	Air China
27 Nov - 05 Dec	Air China
25 Nov - 30 Nov	Air China
27 Nov - 01 Dec	Etihad Airways
27 Nov - 11 Dec	Etihad Airways
27 Nov - 04 Dec	Etihad Airways
20 Nov - 11 Dec	Etihad Airways
27 Nov - 12 Dec	Air China
28 Nov - 07 Dec	Etihad Airways
28 Nov - 02 Dec	Etihad Airways
21 Nov - 02 Dec	Etihad Airways

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

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 Seoul to Istanbul in November from 443€

Return flights