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

Return flights

31 Dec - 15 Jan	Wizz Air Malta
31 Dec - 19 Jan	Wizz Air Malta
31 Dec - 20 Jan	Wizz Air Malta
26 Dec - 19 Jan	easyJet
31 Dec - 11 Jan	Wizz Air Malta
31 Dec - 07 Jan	Wizz Air Malta
29 Dec - 13 Jan	Wizz Air UK
29 Dec - 22 Jan	Wizz Air
29 Dec - 14 Jan	Wizz Air UK
29 Dec - 16 Jan	Wizz Air UK
24 Dec - 29 Dec	Wizz Air
24 Dec - 27 Dec	Wizz Air
26 Dec - 31 Dec	easyJet
23 Dec - 29 Dec	Wizz Air
24 Dec - 31 Dec	Wizz Air
23 Dec - 31 Dec	Wizz Air
26 Dec - 29 Dec	Wizz Air
24 Dec - 28 Dec	Wizz Air
25 Dec - 30 Dec	Wizz Air
27 Dec - 31 Dec	Wizz Air

Also check the deals for one-way flights from London 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 London to Seoul in December from 506€

Return flights