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

Return flights

20 Jan - 25 Jan	Air China
28 Jan - 05 Feb	Emirates
26 Jan - 02 Feb	Emirates
26 Jan - 10 Feb	Emirates
28 Jan - 02 Feb	Emirates
28 Jan - 03 Feb	Emirates
21 Jan - 10 Feb	Emirates
28 Jan - 04 Feb	Emirates
22 Jan - 27 Jan	Emirates
14 Jan - 27 Jan	Emirates
14 Jan - 20 Jan	Emirates
17 Jan - 28 Jan	Air China
28 Jan - 31 Jan	Emirates
28 Jan - 11 Feb	Emirates
26 Jan - 11 Feb	Emirates
28 Jan - 01 Feb	Emirates
15 Jan - 26 Jan	Emirates
21 Jan - 28 Jan	Emirates
15 Jan - 27 Jan	Emirates
15 Jan - 22 Jan	Emirates

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 $728

Return flights