AirHint found the following cheapest return flights from Lisbon (LIS) to Seoul (ICN) in October 2026 (see full year).

Return flights

23 Oct - 10 Nov	Vueling Airlines
22 Oct - 12 Nov	Finnair
23 Oct - 13 Nov	Air France
26 Oct - 02 Nov	Etihad Airways
20 Oct - 02 Nov	Etihad Airways
19 Oct - 25 Oct	Finnair
14 Oct - 25 Oct	Finnair
07 Oct - 25 Oct	Finnair
21 Oct - 08 Nov	Finnair
10 Oct - 16 Oct	Etihad Airways
17 Oct - 23 Oct	Etihad Airways
23 Oct - 30 Oct	easyJet
11 Oct - 28 Oct	Etihad Airways
26 Oct - 01 Nov	Etihad Airways
25 Oct - 11 Nov	Etihad Airways
25 Oct - 04 Nov	Etihad Airways
12 Oct - 19 Oct	Finnair
23 Oct - 09 Nov	Finnair
25 Oct - 31 Oct	Etihad Airways
05 Oct - 13 Oct	Finnair

Also check the deals for one-way flights from Lisbon 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 Lisbon to Seoul in October from 662€

Return flights