AirHint found the following cheapest one-way flights from Seoul (ICN) to Seattle (SEA) in June 2026 (see full year).
One-Way flights
| 19 Jun | WestJet | ||
| 06 Jun | WestJet | ||
| 10 Jun | EVA Air | ||
| 19 Jun | Asiana Airlines | direct | |
| 06 Jun | Delta | direct |
Also check the deals for return flights from Seoul to Seattle in June.
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