Flights to Koh Samui from Seattle - $549

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

Prices were available within the past 7 days and start at $549 for one-way flights and $945 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Feb 18 - Wed, Feb 26

SEA

Seattle

USM

Ko Samui

$945 Roundtrip, found 5 days ago

$945

Roundtrip

found 5 days ago

Select Singapore Airlines flight, departing Tue, Feb 18 from Seattle to Ko Samui, returning Wed, Feb 26, priced at $945 found 5 days ago

Mon, Sep 23 - Sun, Sep 29

SEA

Seattle

USM

Ko Samui

$968 Roundtrip, found 14 hours ago

$968

Roundtrip

found 14 hours ago

Select Japan Airlines flight, departing Mon, Sep 23 from Seattle to Ko Samui, returning Sun, Sep 29, priced at $968 found 14 hours ago

Wed, Sep 18 - Sun, Sep 29

SEA

Seattle

USM

Ko Samui

$971 Roundtrip, found 4 days ago

$971

Roundtrip

found 4 days ago

Select Japan Airlines flight, departing Wed, Sep 18 from Seattle to Ko Samui, returning Sun, Sep 29, priced at $971 found 4 days ago

Tue, Feb 11 - Fri, Feb 21

SEA

Seattle

USM

Ko Samui

$1,008 Roundtrip, found 2 days ago

$1,008

Roundtrip

found 2 days ago

Select Japan Airlines flight, departing Tue, Feb 11 from Seattle to Ko Samui, returning Fri, Feb 21, priced at $1,008 found 2 days ago

Wed, Sep 18 - Mon, Sep 30

SEA

Seattle

USM

Ko Samui

$1,116 Roundtrip, found 2 days ago

$1,116

Roundtrip

found 2 days ago

Select EVA Airways flight, departing Wed, Sep 18 from Seattle to Ko Samui, returning Mon, Sep 30, priced at $1,116 found 2 days ago

Wed, Mar 26 - Wed, Apr 2

SEA

Seattle

USM

Ko Samui

$1,506 Roundtrip, found 4 days ago

$1,506

Roundtrip

found 4 days ago

Select Qatar Airways flight, departing Wed, Mar 26 from Seattle to Ko Samui, returning Wed, Apr 2, priced at $1,506 found 4 days ago