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

Return flights

21 Jan - 26 Jan	China Eastern
21 Jan - 28 Jan	Air China
20 Jan - 27 Jan	Air China
25 Jan - 04 Feb	Air China
16 Jan - 21 Jan	Air China
23 Jan - 28 Jan	China Eastern
16 Jan - 22 Jan	Lufthansa
21 Jan - 27 Jan	Lufthansa
23 Jan - 27 Jan	Lufthansa
23 Jan - 06 Feb	Lufthansa
21 Jan - 06 Feb	Lufthansa
16 Jan - 06 Feb	Lufthansa
25 Jan - 06 Feb	Lufthansa
21 Jan - 03 Feb	Lufthansa
28 Jan - 05 Feb	Lufthansa
28 Jan - 06 Feb	Lufthansa
16 Jan - 29 Jan	Lufthansa
21 Jan - 29 Jan	Lufthansa
25 Jan - 03 Feb	Lufthansa
28 Jan - 01 Feb	LOT

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 $441

Return flights