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

Return flights

23 Apr - 03 May	Air China
13 Apr - 20 Apr	Japan Airlines
08 Apr - 21 Apr	Japan Airlines
14 Apr - 21 Apr	Japan Airlines
05 Apr - 08 Apr	Japan Airlines
05 Apr - 12 Apr	Japan Airlines
15 Apr - 22 Apr	Japan Airlines
08 Apr - 19 Apr	Japan Airlines
27 Apr - 10 May	Japan Airlines
05 Apr - 22 Apr	Japan Airlines
08 Apr - 15 Apr	Japan Airlines
15 Apr - 29 May	Japan Airlines
08 Apr - 20 May	Japan Airlines
01 Apr - 07 Apr	Japan Airlines
29 Apr - 07 May	Japan Airlines
29 Apr - 04 May	Japan Airlines
08 Apr - 22 May	Japan Airlines
24 Apr - 04 May	Japan Airlines
25 Apr - 07 May	Japan Airlines
30 Apr - 06 May	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.

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Cheapest return flights from Seoul to Lisbon in April from $903

Return flights