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

Return flights

30 Oct - 07 Nov	Wizz Air Malta
03 Oct - 19 Oct	easyJet
03 Oct - 12 Oct	easyJet
27 Oct - 09 Nov	easyJet
01 Oct - 12 Oct	easyJet
01 Oct - 15 Oct	easyJet
29 Oct - 09 Nov	easyJet
27 Oct - 02 Nov	easyJet
01 Oct - 14 Oct	easyJet
22 Oct - 29 Oct	easyJet
02 Oct - 16 Oct	Wizz Air
24 Oct - 09 Nov	easyJet
28 Oct - 06 Nov	Wizz Air
24 Oct - 02 Nov	easyJet
18 Oct - 27 Oct	Wizz Air
02 Oct - 13 Oct	Wizz Air
22 Oct - 06 Nov	Wizz Air
22 Oct - 10 Nov	Wizz Air
02 Oct - 19 Oct	Wizz Air
20 Oct - 08 Nov	Fly One

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 488€

Return flights