Cheapest one-way flights from Seattle to Seoul in July from $427

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

One-Way flights

16 Jul Korean Air direct
15 Jul Korean Air direct
27 Jul Korean Air direct
26 Jul Alaska Airlines direct
22 Jul Delta direct
24 Jul Delta direct
05 Jul Delta
05 Jul Delta direct
03 Jul Asiana Airlines direct

Also check the deals for return flights from Seattle to Seoul in July.

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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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