Cheapest return IST–ICN flights, December

AirHint found the following cheapest return flights from Istanbul (IST) to Seoul (ICN) in December 2026 (see full year).

Return flights

02 Dec - 15 Dec LOT
05 Dec - 12 Dec LOT
07 Dec - 14 Dec LOT
03 Dec - 09 Dec MIAT Mongolian Airlines
10 Dec - 26 Dec LOT
11 Dec - 17 Dec Air China
23 Dec - 05 Jan Qanot Sharq
22 Dec - 31 Dec Air Astana
18 Dec - 31 Dec Air Astana
30 Dec - 08 Jan Air Astana
21 Dec - 03 Jan Air Astana
11 Dec - 18 Dec Air Astana
24 Dec - 06 Jan Air Astana
07 Dec - 28 Jan Qatar Airways
26 Dec - 03 Jan Air Astana
22 Dec - 05 Jan Uzbekistan Airways
01 Dec - 04 Jan Qatar Airways
20 Dec - 03 Jan MIAT Mongolian Airlines
21 Dec - 26 Dec Qatar Airways
20 Dec - 02 Jan MIAT Mongolian Airlines

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

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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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