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

Return flights

14 Jan - 17 Feb	Asiana Airlines
05 Jan - 21 Jan	Japan Airlines
12 Jan - 25 Jan	Japan Airlines
30 Jan - 01 Feb	Japan Airlines
02 Jan - 25 Jan	Japan Airlines
05 Jan - 13 Jan	Japan Airlines
16 Jan - 04 Feb	Japan Airlines
21 Jan - 04 Feb	Japan Airlines
27 Jan - 03 Feb	Japan Airlines
21 Jan - 25 Jan	Japan Airlines
20 Jan - 27 Jan	Japan Airlines
28 Jan - 04 Feb	Japan Airlines
29 Jan - 31 Jan	Japan Airlines
03 Jan - 10 Jan	Japan Airlines
28 Jan - 11 Feb	Japan Airlines
21 Jan - 28 Jan	Japan Airlines
19 Jan - 24 Jan	Japan Airlines
28 Jan - 07 Feb	Japan Airlines
26 Jan - 11 Feb	Japan Airlines
31 Jan - 07 Feb	Japan Airlines

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 $867

Return flights