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

Return flights

06 Jan - 16 Jan	Ryanair
05 Jan - 15 Jan	Ryanair
20 Jan - 30 Jan	Ryanair
05 Jan - 12 Jan	Ryanair
06 Jan - 14 Jan	Ryanair
04 Jan - 11 Jan	Ryanair
04 Jan - 12 Jan	Ryanair
06 Jan - 13 Jan	Ryanair
05 Jan - 13 Jan	Ryanair
18 Jan - 26 Jan	Ryanair
30 Jan - 06 Feb	Ryanair
23 Jan - 06 Feb	Ryanair
14 Jan - 02 Feb	Emirates
28 Jan - 04 Feb	Emirates
14 Jan - 11 Feb	Emirates
27 Jan - 04 Feb	Emirates
25 Jan - 03 Feb	Emirates
21 Jan - 02 Feb	Emirates
28 Jan - 06 Feb	Emirates
25 Jan - 01 Feb	Emirates

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 $689

Return flights