AirHint found the following cheapest return flights from Seoul (ICN) to London (LHR) in December 2026 (see full year).

Return flights

30 Dec - 02 Jan	Lufthansa
02 Dec - 06 Dec	Lufthansa
21 Dec - 01 Jan	Lufthansa
07 Dec - 10 Dec	Lufthansa
05 Dec - 24 Dec	Lufthansa
13 Dec - 20 Dec	Lufthansa
05 Dec - 15 Dec	Lufthansa
23 Dec - 31 Dec	Lufthansa
21 Dec - 24 Dec	Lufthansa
23 Dec - 02 Jan	Lufthansa
28 Dec - 05 Jan	Lufthansa
23 Dec - 03 Jan	Lufthansa
07 Dec - 14 Dec	Scandinavian Airlines
18 Dec - 22 Dec	Lufthansa
03 Dec - 10 Dec	Lufthansa
18 Dec - 02 Jan	Air China
22 Dec - 05 Jan	Lufthansa
18 Dec - 01 Jan	Lufthansa
28 Dec - 04 Jan	Lufthansa
21 Dec - 04 Jan	Lufthansa

Also check the deals for one-way flights from Seoul to London 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 London in December from 581€

Return flights