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

Return flights

12 Jan - 26 Jan	LOT
16 Jan - 20 Jan	LOT
24 Jan - 07 Feb	LOT
25 Jan - 11 Feb	LOT
14 Jan - 18 Feb	LOT
25 Jan - 08 Feb	Lufthansa
18 Jan - 25 Jan	Ryanair
14 Jan - 18 Jan	Wizz Air
18 Jan - 24 Jan	LOT
11 Jan - 25 Jan	Lufthansa
07 Jan - 15 Jan	KLM
09 Jan - 16 Jan	KLM
13 Jan - 20 Jan	Etihad Airways
07 Jan - 22 Jan	KLM
13 Jan - 17 Feb	Air France
29 Jan - 05 Feb	KLM
30 Jan - 06 Feb	Air France
30 Jan - 06 Feb	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 652€

Return flights