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

Return flights

17 Apr - 18 Apr	Japan Airlines
29 Apr - 10 May	EVA Air
29 Apr - 13 May	EVA Air
07 Apr - 14 Apr	Japan Airlines
19 Apr - 26 Apr	Japan Airlines
08 Apr - 18 Apr	EVA Air
15 Apr - 20 Apr	Japan Airlines
06 Apr - 13 Apr	Japan Airlines
16 Apr - 21 Apr	Japan Airlines
02 Apr - 10 Apr	Japan Airlines
09 Apr - 16 Apr	Japan Airlines
07 Apr - 12 Apr	Japan Airlines
19 Apr - 01 May	Japan Airlines
17 Apr - 17 May	Japan Airlines
26 Apr - 17 May	Japan Airlines
21 Apr - 03 May	Japan Airlines
24 Apr - 02 May	Japan Airlines
24 Apr - 03 May	Japan Airlines
26 Apr - 03 May	Japan Airlines
30 Apr - 03 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 $1358

Return flights