AirHint found the following cheapest return flights from Seoul (GMP) to Shanghai (PVG) in January 2026 (see full year).

Return flights

06 Jan - 08 Jan	Jeju Air
06 Jan - 09 Jan	Korean Air
01 Jan - 06 Jan	T'way Air
01 Jan - 07 Jan	T'way Air
05 Jan - 09 Jan	Jeju Air
01 Jan - 08 Jan	T'way Air
22 Jan - 25 Jan	Korean Air
12 Jan - 16 Jan	Air China
05 Jan - 06 Jan	Air China
19 Jan - 23 Jan	Air China
29 Jan - 01 Feb	Air China
30 Jan - 01 Feb	ANA
27 Jan - 01 Feb	ANA
30 Jan - 02 Feb	ANA
31 Jan - 02 Feb	ANA
12 Jan - 05 Feb	ANA

Also check the deals for one-way flights from Seoul to Shanghai in January.

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 January from $144

Return flights