Cheap flights from Seattle to Koh Samui from CA $1,402

Airlines that fly from Seattle to Koh Samui

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Cheap Flights from Seattle to Koh Samui (SEA-USM)

Prices were available within the past 7 days and start at CA $1,402 for one-way flights and CA $3,268 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
*Available to Expedia members.