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

Return flights

26 Apr - 03 May	Air China
11 Apr - 19 Apr	Japan Airlines
10 Apr - 19 Apr	Japan Airlines
17 Apr - 26 Apr	Japan Airlines
22 Apr - 29 Apr	Japan Airlines
22 Apr - 26 Apr	Japan Airlines
06 Apr - 17 Apr	Japan Airlines
23 Apr - 25 Apr	Japan Airlines
22 Apr - 25 Apr	Japan Airlines
26 Apr - 10 May	Japan Airlines
12 Apr - 19 Apr	Japan Airlines
26 Apr - 22 May	Japan Airlines
05 Apr - 08 Apr	Japan Airlines
19 Apr - 02 May	Japan Airlines
24 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 $1276

Return flights