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

Return flights

15 Jan - 28 Jan	China Eastern
20 Jan - 27 Jan	Air China
21 Jan - 25 Jan	Etihad Airways
20 Jan - 25 Jan	Etihad Airways
28 Jan - 08 Feb	Etihad Airways
28 Jan - 10 Feb	Lufthansa
24 Jan - 28 Jan	Air France
22 Jan - 05 Feb	KLM
29 Jan - 05 Feb	Air France
24 Jan - 05 Feb	Air France
27 Jan - 05 Feb	KLM
20 Jan - 05 Feb	KLM
30 Jan - 05 Feb	Air France
28 Jan - 05 Feb	Air France
25 Jan - 04 Feb	Air China
21 Jan - 27 Jan	Lufthansa
23 Jan - 27 Jan	Lufthansa
22 Jan - 27 Jan	Air France
20 Jan - 28 Jan	KLM
24 Jan - 27 Jan	Air France

Also check the deals for one-way flights from Seoul to Lisbon 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 Seoul to Lisbon in January from 426€

Return flights