Cheapest return flights from Istanbul to Seoul in December from $725

Best time to book flights for Istanbul (IST) to Seoul (ICN) flights at AirHint

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

Return flights

09 Dec - 23 Dec China Southern
15 Dec - 22 Dec China Southern
19 Dec - 02 Jan China Southern
08 Dec - 15 Dec China Southern
11 Dec - 22 Dec China Southern
25 Dec - 06 Jan Qatar Airways
25 Dec - 05 Jan Qatar Airways
23 Dec - 02 Jan Qatar Airways
15 Dec - 22 Dec Korean Air direct
22 Dec - 03 Jan Qatar Airways
19 Dec - 02 Jan Korean Air direct
09 Dec - 23 Dec Asiana Airlines direct
23 Dec - 02 Jan Asiana Airlines direct
25 Dec - 06 Jan Asiana Airlines direct
08 Dec - 15 Dec Turkish Airlines direct
25 Dec - 05 Jan Turkish Airlines direct
25 Dec - 25 Dec Turkish Airlines
22 Dec - 27 Dec Turkish Airlines direct

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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