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

Return flights

07 Jan - 15 Jan	Emirates
28 Jan - 05 Feb	Emirates
26 Jan - 03 Feb	Emirates
21 Jan - 27 Jan	Emirates
14 Jan - 21 Jan	Emirates
07 Jan - 14 Jan	Emirates
21 Jan - 11 Feb	Emirates
05 Jan - 02 Feb	Emirates
05 Jan - 12 Jan	Emirates
05 Jan - 16 Jan	China Southern
02 Jan - 06 Jan	China Southern
02 Jan - 17 Jan	China Southern
02 Jan - 09 Jan	China Southern
09 Jan - 17 Jan	China Southern
29 Jan - 05 Feb	Emirates
29 Jan - 12 Feb	Emirates
08 Jan - 05 Feb	Emirates
27 Jan - 05 Feb	Emirates
19 Jan - 02 Feb	Emirates
29 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 461€

Return flights