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

Return flights

22 Jan - 23 Jan	Air China
01 Jan - 14 Jan	Air China
17 Jan - 23 Jan	Air China
27 Jan - 30 Jan	Air China
20 Jan - 28 Jan	Air China
24 Jan - 28 Jan	Air China
06 Jan - 11 Jan	Air China
06 Jan - 16 Jan	Air China
13 Jan - 16 Jan	Air China
03 Jan - 09 Jan	Air China
29 Jan - 06 Feb	Air China
24 Jan - 04 Feb	Air China
27 Jan - 04 Feb	Air China
24 Jan - 01 Feb	Air China
20 Jan - 04 Feb	Air China
28 Jan - 03 Feb	Emirates
05 Jan - 02 Feb	Emirates
05 Jan - 25 Feb	Emirates
05 Jan - 23 Feb	Emirates
28 Jan - 02 Feb	Emirates

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 $414

Return flights