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

Return flights

05 Jan - 25 Jan	Ryanair
22 Jan - 31 Jan	Ryanair
05 Jan - 29 Jan	Ryanair
16 Jan - 22 Jan	Ryanair
09 Jan - 18 Jan	Ryanair
04 Jan - 18 Jan	Ryanair
04 Jan - 13 Jan	Ryanair
17 Jan - 31 Jan	Pegasus Airlines
08 Jan - 15 Jan	Ryanair
15 Jan - 29 Jan	Ryanair
29 Jan - 12 Feb	Ryanair
26 Jan - 09 Feb	Ryanair
30 Jan - 07 Feb	Ryanair
28 Jan - 08 Feb	Pegasus Airlines
24 Jan - 07 Feb	Pegasus Airlines
25 Jan - 08 Feb	Pegasus Airlines
27 Jan - 08 Feb	Ryanair
31 Jan - 14 Feb	Ryanair
19 Jan - 07 Feb	Ryanair
27 Jan - 03 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 574€

Return flights