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

Return flights

02 Dec - 04 Dec	Jeju Air
04 Dec - 08 Dec	Jin Air
08 Dec - 11 Dec	Eastar Jet
09 Dec - 12 Dec	Eastar Jet
20 Dec - 22 Dec	Air China
09 Dec - 11 Dec	Air China
14 Dec - 25 Dec	Air China
22 Dec - 25 Dec	Air China
10 Dec - 16 Dec	Air China
13 Dec - 16 Dec	Air China
15 Dec - 08 Jan	Jin Air
31 Dec - 04 Jan	Air China
30 Dec - 02 Jan	Air China
28 Dec - 02 Jan	Air China
04 Dec - 18 Jan	ANA
31 Dec - 06 Jan	ANA
04 Dec - 19 Jan	ANA
24 Dec - 01 Jan	ANA
31 Dec - 05 Jan	ANA
26 Dec - 01 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 145€

Return flights