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

Return flights

01 Dec - 08 Dec	Air China
22 Dec - 30 Dec	Air China
13 Dec - 20 Dec	Hainan Airlines
21 Dec - 26 Dec	Air China
10 Dec - 12 Dec	Air China
24 Dec - 29 Dec	Air China
01 Dec - 03 Dec	Air China
27 Dec - 07 Jan	Air China
27 Dec - 01 Jan	Air China
27 Dec - 02 Jan	Air China
06 Dec - 09 Dec	Shandong Airlines
10 Dec - 15 Dec	Air China
06 Dec - 10 Dec	Air China
26 Dec - 01 Jan	Air China
26 Dec - 02 Jan	Air China
25 Dec - 02 Jan	Air China
26 Dec - 03 Jan	Air China
27 Dec - 01 Jan	Korean Air	direct
31 Dec - 04 Jan	Korean Air	direct
30 Dec - 04 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 $175

Return flights