Find Cheap Flights from Seattle to Ko Samui

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Seattle to Ko Samui

(Round-trip)
Depart: Fri Nov 3 2017 Return: Fri Nov 17 2017 Trip spans 15 days
Thai Airways
Thai Airways
SEA
9:20a
USM
1:30p
53h 10m
2 stops
USM
4:10a
SEA
8:20p
40h 10m
2 stops
Depart: Fri Jun 9 2017 Return: Sun Jun 18 2017 Trip spans 10 days
$1376
Select
Singapore Airlines
Singapore Airlines
SEA
3:06a
USM
2:55p
35h 49m
3 stops
USM
7:50a
SEA
3:20a
43h 30m
3 stops
Depart: Tue Jul 4 2017 Return: Wed Jul 19 2017 Trip spans 16 days
$1592
Select
EVA Air
EVA Air
SEA
10:10p
USM
1:05p
38h 55m
2 stops
USM
2:00a
SEA
5:00p
39h 00m
2 stops
Depart: Sun Nov 5 2017 Return: Fri Nov 17 2017 Trip spans 13 days
Thai Airways
Thai Airways
SEA
8:00a
USM
12:30p
52h 30m
2 stops
USM
4:10a
SEA
8:20p
40h 10m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Seattle
$944
Destination

Ko Samui
$944