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: Thu Feb 2 2017 Return: Sun Mar 19 2017 Trip spans 45 days
$1112
Select
Air France
Air France
IAD
1:35p
USM
4:05a
38h 30m
2 stops
USM
12:30p
IAD
12:10a
35h 40m
2 stops
Depart: Thu Jun 1 2017 Return: Wed Jun 21 2017 Trip spans 21 days
$1135
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
8:05p
39h 05m
3 stops
USM
7:50a
IAD
2:34a
42h 44m
3 stops
Depart: Sun Feb 12 2017 Return: Fri Feb 24 2017 Trip spans 13 days
$1198
Select
Emirates
Emirates
IAD
5:25a
USM
3:35p
34h 10m
2 stops
USM
5:55a
IAD
3:10p
33h 15m
2 stops
Depart: Mon May 1 2017 Return: Mon May 8 2017 Trip spans 8 days
$2016
Select
Cathay Pacific
Cathay Pacific
DCA
1:50p
USM
8:25p
30h 35m
2 stops
USM
1:25p
DCA
1:16a
35h 51m
3 stops
Depart: Sun Jun 4 2017 Return: Wed Jun 21 2017 Trip spans 18 days
$1129
Select
Air France
Air France
IAD
5:05p
USM
3:10a
34h 05m
2 stops
USM
12:35p
IAD
10:45p
34h 10m
2 stops
Depart: Mon Jun 5 2017 Return: Wed Jun 21 2017 Trip spans 17 days
$1129
Select
Air France
Air France
IAD
5:05p
USM
3:10a
34h 05m
2 stops
USM
12:35p
IAD
10:45p
34h 10m
2 stops
Depart: Tue Jun 27 2017 Return: Sun Jul 9 2017 Trip spans 13 days
$1269
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
8:05p
63h 05m
3 stops
USM
7:50a
IAD
2:40p
54h 50m
3 stops
Depart: Tue Jun 6 2017 Return: Wed Jun 21 2017 Trip spans 16 days
$1129
Select
Air France
Air France
IAD
5:05p
USM
3:10a
34h 05m
2 stops
USM
12:35p
IAD
10:45p
34h 10m
2 stops
Depart: Sun Jun 25 2017 Return: Mon Jul 10 2017 Trip spans 16 days
$1331
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
5:55p
36h 55m
3 stops
USM
7:50a
IAD
2:34a
42h 44m
3 stops
Depart: Wed Jun 7 2017 Return: Wed Jun 21 2017 Trip spans 15 days
$1129
Select
Air France
Air France
IAD
5:05p
USM
3:10a
34h 05m
2 stops
USM
12:35p
IAD
10:45p
34h 10m
2 stops
Depart: Mon Jun 26 2017 Return: Mon Jul 10 2017 Trip spans 15 days
$1331
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
5:55p
36h 55m
3 stops
USM
7:50a
IAD
2:34a
42h 44m
3 stops
Depart: Fri Jun 2 2017 Return: Wed Jun 21 2017 Trip spans 20 days
$1164
Select
Air France
Air France
IAD
5:05p
USM
3:10a
34h 05m
2 stops
USM
12:35p
IAD
10:45p
34h 10m
2 stops
Depart: Thu Jun 29 2017 Return: Mon Jul 10 2017 Trip spans 12 days
$1331
Select
Singapore Airlines
Singapore Airlines
IAD
5:00a
USM
5:55p
36h 55m
3 stops
USM
7:50a
IAD
2:34a
42h 44m
3 stops
Depart: Sat Jun 3 2017 Return: Wed Jun 21 2017 Trip spans 19 days
$1164
Select
Air France
Air France
IAD
5:05p
USM
3:10a
34h 05m
2 stops
USM
12:35p
IAD
10:45p
34h 10m
2 stops
Depart: Wed Jun 28 2017 Return: Mon Jul 10 2017 Trip spans 13 days
$1354
Select
Singapore Airlines
Singapore Airlines
IAD
3:20a
USM
5:55p
38h 35m
2 stops
USM
5:55a
IAD
2:34a
44h 39m
3 stops
Depart: Sat Jan 7 2017 Return: Mon Jan 23 2017 Trip spans 17 days
$2408
Select
Cathay Pacific
Cathay Pacific
DCA
2:30p
USM
6:10p
27h 40m
2 stops
USM
12:25p
DCA
7:01p
30h 36m
3 stops
Depart: Tue Jan 17 2017 Return: Sun Jan 29 2017 Trip spans 13 days
$2423
Select
Cathay Pacific
Cathay Pacific
DCA
2:30p
USM
6:10p
27h 40m
2 stops
USM
12:25p
DCA
11:23p
34h 58m
2 stops
Depart: Thu Jan 19 2017 Return: Sun Jan 29 2017 Trip spans 11 days
$2423
Select
Cathay Pacific
Cathay Pacific
DCA
12:30p
USM
6:10p
29h 40m
3 stops
USM
6:35a
DCA
11:23p
40h 48m
2 stops
Depart: Wed Jan 18 2017 Return: Sun Jan 29 2017 Trip spans 12 days
$2444
Select
Cathay Pacific
Cathay Pacific
DCA
12:30p
USM
6:10p
53h 40m
2 stops
USM
6:35a
DCA
11:23p
40h 48m
2 stops
Depart: Mon Dec 19 2016 Return: Mon Dec 26 2016 Trip spans 8 days
$2172
Select
Singapore Airlines
Singapore Airlines
IAD
12:15p
USM
4:30p
52h 15m
3 stops
USM
5:15a
IAD
2:35p
57h 20m
3 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 $1112
only $2016
Destination

Ko Samui
$1112