Find Deals on Flights from Washington to Ko Samui (WAS - USM)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Washington to Ko Samui

(Round-trip)
Depart: Sat Mar 25 2017 Return: Sun Apr 2 2017 Trip spans 9 days
$2066
Select
Cathay Pacific
Cathay Pacific
DCA
1:25p
USM
8:25p
31h 00m
2 stops
USM
1:25p
DCA
1:46a
36h 21m
3 stops
Depart: Thu Feb 9 2017 Return: Tue Feb 21 2017 Trip spans 13 days
$2424
Select
Cathay Pacific
Cathay Pacific
DCA
5:00a
USM
6:10p
37h 10m
2 stops
USM
6:35a
DCA
6:57p
36h 22m
3 stops
Depart: Thu Feb 16 2017 Return: Sun Feb 19 2017 Trip spans 4 days
$2878
Select
Cathay Pacific
Cathay Pacific
DCA
2:15p
USM
6:10p
27h 55m
2 stops
USM
12:25p
DCA
11:23p
34h 58m
3 stops
Depart: Mon Mar 20 2017 Return: Sat Mar 25 2017 Trip spans 6 days
$8459
Select
Cathay Pacific
Cathay Pacific
DCA
1:25p
USM
8:10p
30h 45m
3 stops
USM
7:35a
DCA
1:46a
42h 11m
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

Washington
$2066
Destination

Ko Samui
$2066