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

Return flights

20 Jan - 31 Jan	Lufthansa
08 Jan - 21 Jan	Lufthansa
07 Jan - 21 Jan	Lufthansa
09 Jan - 21 Jan	Lufthansa
16 Jan - 31 Jan	Lufthansa
30 Jan - 08 Feb	Lufthansa
30 Jan - 09 Feb	Lufthansa
30 Jan - 15 Feb	Lufthansa
13 Jan - 23 Jan	Air China
18 Jan - 26 Jan	Air China
19 Jan - 29 Jan	Air China
16 Jan - 23 Jan	Lufthansa
09 Jan - 20 Jan	Lufthansa
28 Jan - 18 Feb	Lufthansa
28 Jan - 08 Feb	Lufthansa
28 Jan - 07 Feb	Lufthansa
27 Jan - 02 Feb	Lufthansa
12 Jan - 16 Feb	Lufthansa
27 Jan - 04 Feb	Lufthansa
19 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 413€

Return flights