Cheapest return flights from Seoul to Istanbul in December from $619

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

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

Return flights

25 Dec - 31 Dec KLM
15 Dec - 26 Dec Qatar Airways
09 Dec - 16 Dec Qatar Airways
08 Dec - 18 Dec Qatar Airways
24 Dec - 31 Dec China Southern
26 Dec - 29 Dec China Southern
01 Dec - 13 Dec China Southern
23 Dec - 29 Dec China Southern
03 Dec - 13 Dec China Southern
16 Dec - 27 Dec China Southern
25 Dec - 03 Jan China Southern
30 Dec - 12 Jan China Southern
31 Dec - 17 Jan China Southern
26 Dec - 01 Jan China Southern
22 Dec - 02 Jan China Southern
23 Dec - 03 Jan China Southern
31 Dec - 10 Jan China Southern
24 Dec - 03 Jan China Southern
21 Dec - 03 Jan China Southern
28 Dec - 06 Jan China Southern

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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