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

Return flights

07 Jan - 14 Jan	Air China
25 Jan - 30 Jan	Asiana Airlines
27 Jan - 07 Feb	Japan Airlines
18 Jan - 31 Jan	Japan Airlines
17 Jan - 24 Jan	Japan Airlines
27 Jan - 02 Feb	Japan Airlines
11 Jan - 31 Jan	Japan Airlines
11 Jan - 26 Jan	Japan Airlines
13 Jan - 04 Feb	Japan Airlines
19 Jan - 28 Jan	Japan Airlines
19 Jan - 27 Jan	Japan Airlines
16 Jan - 28 Jan	Japan Airlines
13 Jan - 27 Jan	Japan Airlines
14 Jan - 04 Feb	Japan Airlines
17 Jan - 21 Feb	Japan Airlines
15 Jan - 28 Feb	Japan Airlines
16 Jan - 21 Feb	Japan Airlines
17 Jan - 01 Feb	Japan Airlines
18 Jan - 01 Feb	Japan Airlines
18 Jan - 22 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 715€

Return flights