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

Return flights

10 Dec - 18 Dec	Pegasus Airlines
01 Dec - 10 Dec	Pegasus Airlines
26 Dec - 06 Jan	Pegasus Airlines
11 Dec - 25 Dec	AJet
24 Dec - 31 Dec	Pegasus Airlines
04 Dec - 13 Dec	Qatar Airways
30 Dec - 05 Jan	Qatar Airways
16 Dec - 25 Dec	AJet
01 Dec - 05 Dec	AirAsia X
04 Dec - 11 Dec	Pegasus Airlines
27 Dec - 05 Jan	Qatar Airways
07 Dec - 15 Dec	Qatar Airways
01 Dec - 11 Dec	Qatar Airways
25 Dec - 22 Jan	Qatar Airways
29 Dec - 29 Jan	Qatar Airways
20 Dec - 11 Jan	Flynas
29 Dec - 08 Jan	Qatar Airways
24 Dec - 05 Jan	Qatar Airways
25 Dec - 06 Jan	Qatar Airways
22 Dec - 22 Jan	Qatar Airways

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 566€

Return flights