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

Return flights

25 Jan - 08 Feb	Air China
11 Jan - 14 Jan	Air China
09 Jan - 12 Jan	Air China
07 Jan - 05 Feb	T'way Air
02 Jan - 11 Jan	Eastar Jet
21 Jan - 29 Jan	Japan Airlines
21 Jan - 27 Jan	Japan Airlines
21 Jan - 25 Jan	Japan Airlines
21 Jan - 26 Jan	Japan Airlines
21 Jan - 23 Jan	Japan Airlines
14 Jan - 23 Jan	Japan Airlines
23 Jan - 28 Jan	Japan Airlines
28 Jan - 11 Feb	Japan Airlines
29 Jan - 11 Feb	Japan Airlines
22 Jan - 02 Feb	Japan Airlines
22 Jan - 16 Feb	Japan Airlines
21 Jan - 02 Feb	Japan Airlines
21 Jan - 04 Feb	Japan Airlines
28 Jan - 04 Feb	Japan Airlines
28 Jan - 01 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 522€

Return flights