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

Return flights

21 Dec - 26 Dec	Air China
22 Dec - 28 Dec	Air China
23 Dec - 23 Dec	Air China
23 Dec - 28 Dec	Air China
27 Dec - 03 Jan	Air China
25 Dec - 28 Dec	Air China
25 Dec - 01 Jan	Air China
24 Dec - 01 Jan	Air China
21 Dec - 27 Dec	Air China
24 Dec - 29 Dec	Air China
24 Dec - 28 Dec	Air China
24 Dec - 02 Jan	Air China
29 Dec - 04 Jan	Shandong Airlines
24 Dec - 27 Dec	Air China
25 Dec - 29 Dec	Air China
20 Dec - 12 Jan	Air China
24 Dec - 02 Jan	Korean Air	direct
30 Dec - 03 Jan	Korean Air	direct
27 Dec - 03 Jan	Korean Air	direct
31 Dec - 05 Jan	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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Shenzhen to Seoul in December from $203

Return flights