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

Return flights

09 Jan - 23 Jan	Ryanair
23 Jan - 06 Feb	Ryanair
09 Jan - 14 Jan	Ryanair
09 Jan - 06 Feb	Ryanair
30 Jan - 06 Feb	Ryanair
09 Jan - 04 Feb	Ryanair
09 Jan - 20 Jan	Ryanair
24 Jan - 31 Jan	Ryanair
10 Jan - 18 Jan	Ryanair
08 Jan - 18 Jan	Ryanair
19 Jan - 31 Jan	Ryanair
22 Jan - 30 Jan	Ryanair
24 Jan - 01 Feb	Ryanair
27 Jan - 06 Feb	Ryanair
20 Jan - 04 Feb	Ryanair
17 Jan - 24 Jan	Ryanair
09 Jan - 25 Jan	Ryanair
23 Jan - 01 Feb	Ryanair
16 Jan - 02 Feb	Ryanair
30 Jan - 07 Feb	Ryanair

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