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

Return flights

01 Apr - 14 Apr	Air France
01 Apr - 07 Apr	Air France
01 Apr - 22 Apr	Air France
01 Apr - 13 Apr	Air France
01 Apr - 10 Apr	Air France
01 Apr - 08 Apr	Air France
08 Apr - 21 Apr	Air France
03 Apr - 10 Apr	Air France
03 Apr - 08 Apr	Air France
03 Apr - 19 Apr	Scandinavian Airlines
01 Apr - 15 May	Air France
14 Apr - 06 May	Finnair
22 Apr - 27 May	Qatar Airways
08 Apr - 13 May	Finnair
22 Apr - 12 May	LOT
21 Apr - 20 May	LOT
08 Apr - 18 May	Air France
28 Apr - 05 May	LOT
21 Apr - 06 May	Finnair
21 Apr - 05 May	Finnair

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 566€

Return flights