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

Return flights

12 Jan - 15 Jan	China Eastern
12 Jan - 19 Jan	LOT
21 Jan - 28 Jan	LOT
20 Jan - 27 Jan	Etihad Airways
14 Jan - 06 Feb	LOT
19 Jan - 27 Jan	Etihad Airways
12 Jan - 28 Jan	LOT
20 Jan - 30 Jan	LOT
21 Jan - 25 Jan	LOT
17 Jan - 02 Feb	LOT
20 Jan - 25 Jan	LOT
24 Jan - 30 Jan	LOT
21 Jan - 01 Feb	LOT
28 Jan - 01 Feb	LOT
12 Jan - 02 Feb	LOT
14 Jan - 01 Feb	LOT
18 Jan - 02 Feb	LOT
24 Jan - 02 Feb	LOT
27 Jan - 02 Feb	LOT
28 Jan - 04 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 461€

Return flights