Cheapest return flights from Seoul to Istanbul in December from 402€

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

Return flights

06 Dec - 12 Dec Air China
20 Dec - 04 Jan Air China
20 Dec - 28 Dec Air China
03 Dec - 09 Dec China Southern
08 Dec - 13 Dec China Southern
29 Dec - 06 Jan China Southern
05 Dec - 09 Dec China Southern
12 Dec - 16 Dec China Southern
08 Dec - 16 Dec China Southern
05 Dec - 11 Dec China Southern
05 Dec - 13 Dec China Southern
08 Dec - 11 Dec China Southern
29 Dec - 08 Jan China Southern
29 Dec - 13 Jan China Southern
27 Dec - 04 Jan Air China
19 Dec - 17 Jan China Southern
19 Dec - 01 Jan China Southern
24 Dec - 20 Jan Asiana Airlines
28 Dec - 02 Jan Air China
29 Dec - 03 Jan China Southern

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

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