AirHint found the following cheapest one-way flights from Seoul (ICN) to Seattle (SEA) in August 2026 (see full year).
One-Way flights
| 20 Aug | Scoot | ||
| 20 Aug | Asiana Airlines | direct | |
| 15 Aug | Singapore Airlines | ||
| 15 Aug | Delta | direct |
Also check the deals for return flights from Seoul to Seattle in August.
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