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

Return flights

10 Dec - 16 Dec	Pegasus Airlines
31 Dec - 02 Jan	Flynas
11 Dec - 31 Jan	Flynas
31 Dec - 08 Jan	AJet
11 Dec - 18 Dec	AJet
21 Dec - 10 Jan	AJet
29 Dec - 26 Jan	Pegasus Airlines
26 Dec - 07 Jan	Flynas
13 Dec - 18 Dec	Pegasus Airlines
24 Dec - 26 Jan	AJet
11 Dec - 31 Dec	Qatar Airways
19 Dec - 02 Jan	AJet
10 Dec - 17 Dec	Pegasus Airlines
14 Dec - 29 Dec	Qatar Airways
25 Dec - 02 Jan	AJet
21 Dec - 29 Dec	Qatar Airways
18 Dec - 29 Dec	Qatar Airways
07 Dec - 30 Dec	Pegasus Airlines
08 Dec - 16 Dec	Qatar Airways
21 Dec - 26 Jan	AJet

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 529€

Return flights