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

Return flights

28 Dec - 31 Dec	Air China
30 Dec - 05 Jan	Air China
31 Dec - 05 Jan	Air China
25 Dec - 01 Jan	Air China
31 Dec - 04 Jan	Air China
30 Dec - 10 Jan	Korean Air	direct
30 Dec - 27 Jan	Korean Air	direct
29 Dec - 06 Jan	Korean Air	direct
30 Dec - 05 Jan	Korean Air	direct
20 Dec - 03 Jan	Korean Air	direct
25 Dec - 28 Dec	Korean Air	direct
28 Dec - 31 Dec	Korean Air	direct
25 Dec - 01 Jan	Korean Air	direct
07 Dec - 14 Dec	Korean Air	direct

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

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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Cheapest return flights from Shenzhen to Seoul in December from 192€

Return flights