Cheapest return flights from Portland to Seoul in September from 757€

AirHint found the following cheapest return flights from Portland (PDX) to Seoul (ICN) in September 2025 (see full year).

Return flights

17 Sep - 30 Sep Alaska Airlines
24 Sep - 30 Sep Air Canada
03 Sep - 10 Sep Air Canada
06 Sep - 17 Sep Hawaiian Airlines
20 Sep - 27 Sep United
20 Sep - 28 Sep United
21 Sep - 27 Sep United
01 Sep - 07 Oct United
21 Sep - 02 Oct United
29 Sep - 02 Oct United
27 Sep - 04 Oct United

Also check the deals for one-way flights from Portland to Seoul in September.

Skyscanner

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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