AirHint found the following cheapest return flights from Seoul (GMP) to Shanghai (PVG) in December 2025 (see full year).

Return flights

04 Dec - 07 Dec	Air China
12 Dec - 16 Dec	Air China
14 Dec - 20 Dec	Eastar Jet
05 Dec - 08 Dec	Jeju Air
24 Dec - 30 Dec	Jeju Air
24 Dec - 28 Dec	Jeju Air
29 Dec - 04 Jan	Eastar Jet
05 Dec - 07 Dec	Air China
17 Dec - 21 Dec	Air China
03 Dec - 05 Dec	Air China
01 Dec - 05 Dec	Air China
31 Dec - 03 Jan	Air China
29 Dec - 02 Jan	Air China
30 Dec - 02 Jan	Air China
27 Dec - 04 Jan	Air China
26 Dec - 01 Jan	Air China
27 Dec - 01 Jan	Air China
29 Dec - 01 Jan	Air China
26 Dec - 05 Jan	Air China
23 Dec - 04 Jan	ANA

Also check the deals for one-way flights from Seoul to Shanghai 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 Seoul to Shanghai in December from 193€

Return flights