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

Return flights

08 Dec - 11 Dec	AirAsia X
05 Dec - 11 Dec	AirAsia X
05 Dec - 09 Dec	AirAsia X
07 Dec - 11 Dec	AirAsia X
01 Dec - 11 Dec	AirAsia X
01 Dec - 07 Dec	AirAsia X
08 Dec - 12 Dec	AirAsia X
08 Dec - 13 Dec	AirAsia X
08 Dec - 14 Dec	AirAsia X
07 Dec - 20 Jan	AirAsia X
01 Dec - 06 Dec	AirAsia X
31 Dec - 20 Jan	AirAsia X
31 Dec - 15 Jan	AirAsia X
29 Dec - 15 Jan	AirAsia X
28 Dec - 15 Jan	AirAsia X
30 Dec - 16 Jan	Qatar Airways
31 Dec - 13 Jan	AirAsia X
04 Dec - 24 Jan	Qatar Airways
27 Dec - 01 Jan	Qatar Airways
29 Dec - 13 Jan	AirAsia X

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

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 Istanbul to Seoul in December from $644

Return flights