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

Return flights

09 Dec - 15 Dec	Scandinavian Airlines
03 Dec - 10 Dec	Scandinavian Airlines
01 Dec - 07 Dec	British Airways
01 Dec - 08 Dec	British Airways
02 Dec - 11 Dec	Hainan Airlines
09 Dec - 20 Dec	Ryanair
04 Dec - 14 Dec	Ryanair
08 Dec - 20 Dec	easyJet
01 Dec - 05 Dec	KLM
11 Dec - 20 Dec	Ryanair
26 Dec - 16 Jan	British Airways
27 Dec - 19 Jan	British Airways
27 Dec - 16 Jan	Ryanair
21 Dec - 05 Jan	Scandinavian Airlines
23 Dec - 01 Jan	Ryanair
26 Dec - 02 Jan	British Airways
21 Dec - 06 Jan	Korean Air
21 Dec - 01 Jan	Korean Air
14 Dec - 01 Jan	Lufthansa
20 Dec - 07 Jan	Ryanair

Also check the deals for one-way flights from Manchester 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.

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Cheapest return flights from Manchester to Seoul in December from 479€

Return flights