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

Return flights

12 Jan - 24 Jan	Hainan Airlines
13 Jan - 28 Jan	Lufthansa
14 Jan - 28 Jan	Lufthansa
16 Jan - 28 Jan	Lufthansa
20 Jan - 28 Jan	Lufthansa
19 Jan - 31 Jan	Hainan Airlines
16 Jan - 23 Jan	Lufthansa
20 Jan - 25 Jan	Lufthansa
08 Jan - 18 Jan	Lufthansa
16 Jan - 19 Jan	Lufthansa
07 Jan - 07 Feb	Lufthansa
14 Jan - 05 Feb	Lufthansa
15 Jan - 05 Feb	Lufthansa
01 Jan - 04 Feb	Lufthansa
30 Jan - 15 Feb	Lufthansa
30 Jan - 02 Feb	Lufthansa
17 Jan - 01 Feb	Lufthansa
31 Jan - 07 Feb	Lufthansa
19 Jan - 01 Feb	Lufthansa
25 Jan - 07 Feb	Lufthansa

Also check the deals for one-way flights from London to Seoul 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 London to Seoul in January from 453€

Return flights