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

Return flights

21 Jan - 28 Jan	LOT
13 Jan - 21 Jan	LOT
27 Jan - 04 Feb	LOT
28 Jan - 07 Feb	LOT
28 Jan - 01 Feb	LOT
28 Jan - 04 Feb	LOT
17 Jan - 28 Jan	LOT
17 Jan - 24 Jan	LOT
28 Jan - 06 Feb	Lufthansa
28 Jan - 30 Jan	Lufthansa
01 Jan - 11 Jan	Turkish Airlines
28 Jan - 11 Feb	LOT
14 Jan - 25 Jan	LOT
28 Jan - 31 Jan	Lufthansa
14 Jan - 22 Jan	Lufthansa
21 Jan - 30 Jan	Lufthansa
21 Jan - 10 Feb	Etihad Airways
28 Jan - 03 Feb	Etihad Airways
29 Jan - 10 Feb	Etihad Airways
26 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 592€

Return flights