Find Cheap 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
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 Jul 22 2017 Return: Sat Aug 5 2017 Trip spans 15 days
$1247
Select
Singapore Airlines
Singapore Airlines
IAD
12:00p
USM
5:55p
53h 55m
3 stops
USM
5:55a
IAD
9:35p
63h 40m
2 stops
Depart: Fri Apr 28 2017 Return: Fri May 5 2017 Trip spans 8 days
$1815
Select
Cathay Pacific
Cathay Pacific
DCA
1:27p
USM
8:25p
54h 58m
2 stops
USM
6:55a
DCA
1:53a
42h 58m
2 stops
Depart: Wed Jun 28 2017 Return: Sun Jul 9 2017 Trip spans 12 days
$1829
Select
KLM
KLM
IAD
1:40p
USM
3:10a
37h 30m
2 stops
USM
12:35p
IAD
10:35p
34h 00m
2 stops
Depart: Thu Jun 29 2017 Return: Sat Jul 8 2017 Trip spans 10 days
$1931
Select
Emirates
Emirates
IAD
6:55a
USM
4:05p
33h 10m
2 stops
USM
11:00a
IAD
3:40p
28h 40m
2 stops
Depart: Sat May 20 2017 Return: Fri Jun 9 2017 Trip spans 21 days
$1318
Select
Singapore Airlines
Singapore Airlines
IAD
2:55p
USM
8:05p
53h 10m
2 stops
USM
5:55a
IAD
5:53a
47h 58m
2 stops
Depart: Tue Jun 27 2017 Return: Mon Jul 10 2017 Trip spans 14 days
$1359
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
8:05p
39h 05m
3 stops
USM
5:55a
IAD
2:45p
56h 50m
3 stops
Depart: Mon Jul 17 2017 Return: Fri Aug 11 2017 Trip spans 26 days
$1381
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
5:55p
36h 55m
3 stops
USM
5:55a
IAD
9:35p
63h 40m
2 stops
Depart: Wed Aug 2 2017 Return: Thu Aug 10 2017 Trip spans 9 days
$1398
Select
Singapore Airlines
Singapore Airlines
IAD
3:20a
USM
5:55p
38h 35m
2 stops
USM
5:55a
IAD
9:35p
63h 40m
2 stops
Depart: Fri Jun 30 2017 Return: Sun Jul 9 2017 Trip spans 10 days
$1442
Select
Singapore Airlines
Singapore Airlines
IAD
12:04p
USM
5:55p
53h 51m
3 stops
USM
5:55a
IAD
2:45p
56h 50m
3 stops
Depart: Thu Sep 28 2017 Return: Thu Oct 5 2017 Trip spans 8 days
$2167
Select
Cathay Pacific
Cathay Pacific
DCA
1:50p
USM
8:25p
30h 35m
3 stops
USM
1:25p
DCA
7:31p
30h 06m
3 stops
Depart: Mon Jul 3 2017 Return: Mon Jul 10 2017 Trip spans 8 days
$1459
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
5:55p
36h 55m
3 stops
USM
7:50a
IAD
2:45p
54h 55m
3 stops
Depart: Sat Jun 17 2017 Return: Fri Jul 14 2017 Trip spans 28 days
$1475
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
5:55p
36h 55m
3 stops
USM
5:55a
IAD
2:45p
56h 50m
3 stops
Depart: Sat Jul 1 2017 Return: Mon Jul 10 2017 Trip spans 10 days
$1509
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
5:55p
36h 55m
3 stops
USM
7:50a
IAD
2:45p
54h 55m
3 stops
Depart: Sun Jul 2 2017 Return: Mon Jul 10 2017 Trip spans 9 days
$1509
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
8:05p
39h 05m
3 stops
USM
7:50a
IAD
2:45p
54h 55m
3 stops
Depart: Sun Jul 30 2017 Return: Wed Aug 2 2017 Trip spans 4 days
$1537
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
8:05p
39h 05m
3 stops
USM
5:55a
IAD
9:35p
63h 40m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Washington
only $1247
only $1815
Destination

Ko Samui
$1247