Cheapest one-way flights from Seattle to Seoul in August from $570

Best time to book flights for Seattle (SEA) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest one-way flights from Seattle (SEA) to Seoul (ICN) in August 2025 (see full year).

One-Way flights

13 Aug China Airlines
22 Aug Air Canada
06 Aug China Airlines
04 Aug EVA Air
07 Aug EVA Air
03 Aug China Airlines
10 Aug China Airlines
03 Aug Asiana Airlines direct
04 Aug Asiana Airlines direct
07 Aug Asiana Airlines direct

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

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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