Cheapest return flights from Seoul to Istanbul in December from $425

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

Return flights

05 Dec - 16 Dec China Southern
05 Dec - 13 Dec China Southern
01 Dec - 11 Dec China Southern
03 Dec - 09 Dec China Southern
08 Dec - 11 Dec China Southern
01 Dec - 13 Dec China Southern
01 Dec - 06 Dec China Southern
05 Dec - 11 Dec China Southern
01 Dec - 16 Dec China Southern
08 Dec - 13 Dec China Southern
31 Dec - 10 Jan China Southern
31 Dec - 06 Jan China Southern
19 Dec - 03 Jan China Southern
19 Dec - 10 Jan China Southern
26 Dec - 03 Jan China Southern
29 Dec - 06 Jan China Southern
26 Dec - 01 Jan China Southern
29 Dec - 01 Jan China Southern
27 Dec - 04 Jan Air China
30 Dec - 04 Jan Air China

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

Skyscanner

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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