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

Return flights

05 Jan - 23 Jan	Ryanair
26 Jan - 01 Feb	Ryanair
08 Jan - 18 Jan	Ryanair
25 Jan - 08 Feb	Ryanair
09 Jan - 23 Jan	Ryanair
19 Jan - 29 Jan	Ryanair
05 Jan - 18 Jan	Ryanair
05 Jan - 19 Jan	Ryanair
09 Jan - 24 Jan	Ryanair
07 Jan - 14 Jan	Ryanair
10 Jan - 25 Jan	Ryanair
10 Jan - 24 Jan	Ryanair
21 Jan - 11 Feb	Ryanair
29 Jan - 08 Feb	Ryanair
26 Jan - 09 Feb	Ryanair
29 Jan - 05 Feb	Ryanair
28 Jan - 11 Feb	Ryanair
31 Jan - 26 Feb	Ryanair
24 Jan - 07 Feb	Ryanair
21 Jan - 06 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 584€

Return flights