AirHint found the following cheapest one-way flights from Seattle (SEA) to Seoul (GMP) in May 2026 (see full year).
One-Way flights
| 05 May | EVA Air | ||
| 07 May | EVA Air | ||
| 11 May | China Airlines | ||
| 06 May | China Airlines | ||
| 18 May | Alaska Airlines | ||
| 17 May | ANA | ||
| 09 May | Frontier Airlines | ||
| 15 May | Philippine Airlines | ||
| 16 May | Frontier Airlines | ||
| 21 May | ANA |
Also check the deals for return flights from Seattle to Seoul in May.
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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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