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

Return flights

23 Jan - 31 Jan	Air China
23 Jan - 30 Jan	Air China
21 Jan - 23 Jan	Air China
28 Jan - 09 Feb	Lufthansa
28 Jan - 03 Feb	Lufthansa
21 Jan - 27 Jan	Lufthansa
19 Jan - 21 Jan	China Eastern
23 Jan - 27 Jan	Air France
29 Jan - 04 Feb	Air France
27 Jan - 12 Feb	KLM
31 Jan - 04 Feb	Air France
22 Jan - 04 Feb	KLM
28 Jan - 04 Feb	Air France
23 Jan - 04 Feb	Air France
27 Jan - 04 Feb	KLM
24 Jan - 27 Jan	Air France
22 Jan - 27 Jan	KLM
20 Jan - 26 Jan	KLM
20 Jan - 27 Jan	KLM
28 Jan - 10 Feb	Lufthansa

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Cheapest return flights from Seoul to Lisbon in January from $514

Return flights