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

Return flights

01 Jan - 28 Jan	Lufthansa
27 Jan - 17 Feb	Lufthansa
20 Jan - 31 Jan	Lufthansa
27 Jan - 05 Feb	Lufthansa
13 Jan - 28 Jan	Lufthansa
22 Jan - 28 Jan	Lufthansa
07 Jan - 09 Feb	Lufthansa
20 Jan - 26 Jan	Lufthansa
08 Jan - 24 Jan	Lufthansa
17 Jan - 31 Jan	Lufthansa
13 Jan - 25 Jan	Lufthansa
19 Jan - 25 Jan	Lufthansa
19 Jan - 29 Jan	Lufthansa
09 Jan - 21 Feb	Lufthansa
16 Jan - 21 Feb	Lufthansa
17 Jan - 21 Feb	Lufthansa
15 Jan - 04 Feb	Lufthansa
25 Jan - 08 Feb	Lufthansa
15 Jan - 05 Feb	Lufthansa
25 Jan - 05 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 459€

Return flights