Cheap Flights 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 €873 for one-way flights and €1,452 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

EVA Airways
Mon, 6 Jan - Mon, 13 Jan
SEA
Seattle
USM
Koh Samui
€1,452 Return, found 2 days ago
€1,452
Return
found 2 days ago
Select EVA Airways flight, departing Mon, 6 Jan from Seattle to Koh Samui, returning Mon, 13 Jan, priced at €1,452 found 2 days ago
EVA Airways
Mon, 6 Jan - Mon, 13 Jan
SEA
Seattle
USM
Koh Samui
€1,509 Return, found 2 days ago
€1,509
Return
found 2 days ago
Select EVA Airways flight, departing Mon, 6 Jan from Seattle to Koh Samui, returning Mon, 13 Jan, priced at €1,509 found 2 days ago
EVA Airways
Mon, 6 Jan - Mon, 13 Jan
SEA
Seattle
USM
Koh Samui
€1,590 Return, found 2 days ago
€1,590
Return
found 2 days ago
Select EVA Airways flight, departing Mon, 6 Jan from Seattle to Koh Samui, returning Mon, 13 Jan, priced at €1,590 found 2 days ago
Qatar Airways
Mon, 6 Jan - Mon, 13 Jan
SEA
Seattle
USM
Koh Samui
€1,740 Return, found 2 days ago
€1,740
Return
found 2 days ago
Select Qatar Airways flight, departing Mon, 6 Jan from Seattle to Koh Samui, returning Mon, 13 Jan, priced at €1,740 found 2 days ago
Qatar Airways
Mon, 6 Jan - Mon, 13 Jan
SEA
Seattle
USM
Koh Samui
€1,749 Return, found 2 days ago
€1,749
Return
found 2 days ago
Select Qatar Airways flight, departing Mon, 6 Jan from Seattle to Koh Samui, returning Mon, 13 Jan, priced at €1,749 found 2 days ago
China Airlines
Mon, 6 Jan - Mon, 13 Jan
SEA
Seattle
USM
Koh Samui
€1,803 Return, found 2 days ago
€1,803
Return
found 2 days ago
Select China Airlines flight, departing Mon, 6 Jan from Seattle to Koh Samui, returning Mon, 13 Jan, priced at €1,803 found 2 days ago
*Available to Expedia members.