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

Return flights

14 Jan - 20 Jan	Air China
16 Jan - 24 Jan	Air China
17 Jan - 25 Jan	China Eastern
03 Jan - 13 Jan	easyJet
03 Jan - 12 Jan	easyJet
29 Jan - 05 Feb	Wizz Air UK
03 Jan - 11 Jan	Ryanair
30 Jan - 07 Feb	Air China
11 Jan - 24 Jan	Air China
29 Jan - 06 Feb	Wizz Air UK
15 Jan - 23 Jan	SWISS
31 Jan - 08 Feb	SWISS
29 Jan - 08 Feb	Wizz Air UK
03 Jan - 26 Jan	Ryanair
01 Jan - 08 Jan	easyJet
31 Jan - 10 Feb	Wizz Air
31 Jan - 07 Feb	Wizz Air
27 Jan - 10 Feb	Turkish Airlines
27 Jan - 08 Feb	Turkish Airlines
25 Jan - 08 Feb	Turkish Airlines

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 $571

Return flights