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

Return flights

22 Jan - 25 Jan	China Eastern
13 Jan - 03 Feb	China Eastern
29 Jan - 04 Feb	China Southern
24 Jan - 06 Feb	Air China
22 Jan - 24 Jan	Air China
16 Jan - 23 Jan	Asiana Airlines
18 Jan - 25 Jan	China Eastern
16 Jan - 25 Jan	China Eastern
08 Jan - 15 Jan	China Southern
20 Jan - 25 Jan	Air China
28 Jan - 05 Feb	Emirates
26 Jan - 02 Feb	Emirates
28 Jan - 02 Feb	Emirates
28 Jan - 03 Feb	Emirates
21 Jan - 10 Feb	Emirates
28 Jan - 04 Feb	Emirates
30 Jan - 07 Feb	Asiana Airlines
15 Jan - 31 Jan	China Southern
22 Jan - 27 Jan	Emirates
17 Jan - 31 Jan	Etihad Airways

Also check the deals for one-way flights from Seoul to London 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 London in January from 531€

Return flights