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

Return flights

19 Oct - 22 Oct	Air China
22 Oct - 27 Oct	Air China
23 Oct - 27 Oct	Air China
16 Oct - 23 Oct	Eastar Jet
14 Oct - 18 Oct	Jeju Air
24 Oct - 28 Oct	Eastar Jet
17 Oct - 24 Oct	Eastar Jet
24 Oct - 26 Oct	Air Busan
12 Oct - 17 Oct	Jeju Air
23 Oct - 30 Oct	Korean Air
31 Oct - 02 Nov	Korean Air
28 Oct - 04 Nov	ANA
28 Oct - 02 Nov	ANA
29 Oct - 03 Nov	ANA
31 Oct - 03 Nov	ANA
30 Oct - 04 Nov	ANA
31 Oct - 04 Nov	ANA
27 Oct - 03 Nov	ANA
30 Oct - 01 Nov	ANA
29 Oct - 01 Nov	ANA

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

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 October from 184€

Return flights