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

Return flights

11 Jan - 18 Jan	Ryanair
18 Jan - 25 Jan	Ryanair
18 Jan - 24 Jan	LOT
16 Jan - 23 Jan	Etihad Airways
21 Jan - 30 Jan	KLM
06 Jan - 27 Jan	Air France
11 Jan - 23 Jan	Air France
05 Jan - 12 Jan	Finnair
04 Jan - 11 Jan	Finnair
21 Jan - 30 Jan	Korean Air	direct

Also check the deals for one-way flights from Lisbon 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 Lisbon to Seoul in January from $801

Return flights