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

Return flights

30 Apr - 09 May	Japan Airlines
29 Apr - 03 May	Japan Airlines
30 Apr - 04 May	Japan Airlines
26 Apr - 08 May	Japan Airlines
26 Apr - 02 May	Japan Airlines
03 Apr - 12 Apr	Japan Airlines
05 Apr - 15 Apr	Japan Airlines
08 Apr - 19 Apr	Japan Airlines
17 Apr - 26 Apr	Japan Airlines
26 Apr - 13 May	Japan Airlines
26 Apr - 06 May	Japan Airlines
04 Apr - 13 Apr	Japan Airlines
07 Apr - 13 Apr	Japan Airlines
03 Apr - 10 Apr	Japan Airlines
01 Apr - 31 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 1923€

Return flights