Cheapest one-way flights from Seoul to Porto in September from $395

AirHint found the following cheapest one-way flights from Seoul (ICN) to Porto (OPO) in September 2026 (see full year).

One-Way flights

29 Sep Vietnam Airlines
14 Sep Vietnam Airlines
30 Sep Vietnam Airlines
09 Sep Etihad Airways
20 Sep Vietnam Airlines
12 Sep Air China
08 Sep Etihad Airways
06 Sep MIAT Mongolian Airlines
22 Sep Etihad Airways
18 Sep China Southern

Also check the deals for return flights from Seoul to Porto in September.

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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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