AirHint found the following cheapest return flights from Seoul (ICN) to Istanbul (IST) in January 2026 (see full year).

Return flights

13 Jan - 18 Jan	Air China
15 Jan - 21 Jan	Air China
17 Jan - 23 Jan	Air China
27 Jan - 30 Jan	Air China
13 Jan - 21 Jan	Air China
08 Jan - 14 Jan	Air China
24 Jan - 01 Feb	Air China
06 Jan - 13 Jan	Etihad Airways
15 Jan - 20 Jan	Etihad Airways
01 Jan - 15 Jan	Etihad Airways
01 Jan - 06 Jan	Etihad Airways
30 Jan - 08 Feb	Etihad Airways
23 Jan - 03 Feb	Etihad Airways
15 Jan - 04 Feb	Etihad Airways
23 Jan - 06 Feb	Qatar Airways
26 Jan - 02 Feb	Qatar Airways
26 Jan - 06 Feb	Qatar Airways
31 Jan - 08 Feb	Etihad Airways
14 Jan - 27 Feb	Qatar Airways
25 Jan - 03 Feb	Qatar Airways

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

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 January from $587

Return flights