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

Return flights

22 Apr - 13 May	Japan Airlines
29 Apr - 02 May	Japan Airlines
29 Apr - 03 May	Japan Airlines
22 Apr - 26 Apr	Japan Airlines
23 Apr - 25 Apr	Japan Airlines
22 Apr - 25 Apr	Japan Airlines
20 Apr - 30 Apr	Japan Airlines
19 Apr - 02 May	Japan Airlines
19 Apr - 03 May	Japan Airlines
19 Apr - 22 Apr	Japan Airlines
01 Apr - 12 Apr	Japan Airlines
17 Apr - 26 Apr	Japan Airlines
01 Apr - 08 Apr	Japan Airlines
05 Apr - 11 Apr	Japan Airlines

Also check the deals for one-way flights from Seoul to Lisbon in April.

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 April from $2120

Return flights