AirHint found the following cheapest return flights from London (LTN) to Seoul (ICN) in October 2025 (see full year).

Return flights

17 Oct - 26 Oct	easyJet
18 Oct - 26 Oct	Wizz Air
22 Oct - 02 Nov	easyJet
01 Oct - 16 Oct	Wizz Air UK
29 Oct - 12 Nov	Wizz Air
18 Oct - 07 Nov	Wizz Air
24 Oct - 02 Nov	easyJet
29 Oct - 07 Nov	Wizz Air
23 Oct - 06 Nov	Wizz Air
18 Oct - 03 Nov	Ryanair
02 Oct - 20 Oct	Wizz Air
19 Oct - 26 Oct	Wizz Air
20 Oct - 27 Oct	Ryanair
23 Oct - 14 Nov	Wizz Air
23 Oct - 12 Nov	Wizz Air
23 Oct - 07 Nov	Wizz Air
19 Oct - 24 Oct	Wizz Air
14 Oct - 19 Oct	Wizz Air
14 Oct - 28 Oct	Wizz Air
01 Oct - 15 Oct	Wizz Air UK

Also check the deals for one-way flights from London to Seoul in October.

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 October from 563€

Return flights