Cheapest one-way flights from Seoul to Seattle in September from 348€

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

One-Way flights

24 Sep T'way Air
15 Sep Philippine Airlines
16 Sep Philippine Airlines
24 Sep Korean Air direct
15 Sep Asiana Airlines direct
16 Sep Delta direct

Also check the deals for return flights from Seoul to Seattle 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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