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Find Cheap Flights from Washington Dulles Intl to Ko Samui (IAD - USM)

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Washington Dulles Intl to Ko Samui Flight Information

Flights Arrive in Ko Samui
Flights Depart from Washington Dulles Intl
Flight Price $910
Distance 9,082 miles
Airlines Singapore Airlines, Qatar Airways, Emirates, Etihad Airways, Air France, Cathay Pacific, KLM

FAQs for Booking Washington Dulles Intl to Ko Samui Flights

How long does a flight from Washington Dulles Intl to Ko Samui take?
There are no direct flights for this route listed on KAYAK, the shortest multi-flight duration is 23h 05m.
Which airlines provide the cheapest flights from Washington Dulles Intl to Ko Samui?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($910), Singapore Airlines ($955) and Qatar Airways ($1217).
Do I need a passport to fly between Washington Dulles Intl and Ko Samui?
Yes.

Book cheap flights from Washington Dulles Intl to Ko Samui (round-trip)

Airports
Origin
Washington
$910
only
$910
Destination
Ko Samui
$910
only
$910
Fri, Oct 12
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
51h 30m
Mon, Oct 22
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
37h 20m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Nov 5
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
61h 00m
Mon, Nov 26
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
44h 12m
Trip: 22 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2,920 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
JFK
FRA
Excellent 9.0

Everything else

Food was less than marginal

SIN
DEL
Excellent 10.0

The comfort and caring staff

Food serve a bit slow with the no of pax and long queue for the washroom

LAX
ICN
Excellent 10.0

Crew was very friendly and responsive to my needs. They met it with a smile.

HKG
SFO
Excellent 10.0

check in went smoothly. helper was friendly and helpful.

LAX
PDX
Okay 5.3

They were polite.

Not as attentive as ANA or China Airlines. I had to give 4-5 request to get what I want.

Tue, Oct 2
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
25h 55m
Tue, Oct 30
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
31h 20m
$1217
Trip: 29 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8,451 reviews
Overall
8.3
Boarding
8.3
Comfort
8.1
Crew
8.6
Entertainment
8.3
Food
8.0
DAC
DOH
Excellent 9.0

Cabin crew service was very good. Flght with Airbus 350 plane was really comfortable and quite. They put extra care for kids and babies and all of kids get gift bag with toys, chocolate etc. which makes everyone happy Especially kids. I personally like to watch new release movies and enjoyed to pass my flight time.

Their south indian food was testless in both inbound and outbound flight from Philadelphia to doha. Snacks was good but meal definitely they should have better to change it.

DOH
PHL
Excellent 9.0

Cabin crew service was very good. Flght with Airbus 350 plane was really comfortable and quite. They put extra care for kids and babies and all of kids get gift bag with toys, chocolate etc. which makes everyone happy Especially kids. I personally like to watch new release movies and enjoyed to pass my flight time.

Their south indian food was testless in both inbound and outbound flight from Philadelphia to doha. Snacks was good but meal definitely they should have better to change it.

DOH
AMS
Excellent 8.0

The cabin crew was fantastic and made the experience very positive.

The food was not of the quality I would have expected from the expectation created by the airlines marketing.

NBO
DOH
Excellent 8.3

Service was great for such a long flight. It would be good to have like a snack bar for people to purchase snacks.

The wedsite for Qatar could use some work.

DOH
BKK
Excellent 10.0

Everything

Non

Mon, Oct 1
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
23h 40m
Thu, Nov 1
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
30h 05m
$1306
Trip: 32 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 12,370 reviews
Overall
8.3
Boarding
8.3
Comfort
8.2
Crew
8.4
Entertainment
8.6
Food
8.1
MNL
DXB
Good 7.0

Food

Other Crew woman

JNB
DXB
Excellent 8.0

Emirates really knows how to treat customers

Flight was long

DEL
DXB
Okay 4.6

With more focus on menat and India what used to be a good airline is slowly turning to cattle carrier.

DXB
BLR
Okay 5.6

Took a long time to get the crew together after the plane was ready

DFW
DXB
Good 7.3

Better & flavorfull food .. Qatar & KQ Airlines hands down have better tasting food

Sun, Sep 23
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
24h 10m
Mon, Oct 29
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
31h 05m
$1448
Trip: 37 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 5,727 reviews
Overall
7.4
Boarding
7.4
Comfort
7.3
Crew
7.6
Entertainment
7.4
Food
7.0
JED
AUH
Excellent 8.0

Crew On time

Very slow process for checking, only one person for business class and it took forver to finish

HYD
AUH
Excellent 8.0

Food and entertainment

JFK
AUH
Excellent 10.0

Everything is fine and good

LOS
AUH
Excellent 10.0

All the hospitality and entertainment system was great

The holy Quran I listen to

LAX
AUH
Good 6.0

The organisation of the crew & their amability was very Good

I didn’ t like the food bcs of the rice Rice & rice again & especially the dinner it was only spicy rice

Sat, Oct 13
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
27h 30m
Mon, Oct 22
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
27h 45m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Sep 25
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
29h 50m
Fri, Nov 2
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
35h 05m
$2040
Trip: 39 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 2,737 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.2
Entertainment
6.8
Food
7.1
IAD
CDG
Excellent 9.3

Good seat width Great movie selection Great food and drinks Nice and large A380

The interface of the screens seemed old Need to anticipate the needs of the customer better For example, they brought me my special meal first, but I had to wait 30 minutes later to get a drink to accompany it. The food was getting old. Did not see any newspaper/periodical selection. That would have been nice.

MUC
CDG
Excellent 9.6

Direct flight from Indy to CDG is great. The plane was not so full, so I hope business improves so we can keep it going. Very smooth flight, with good and friendly crew.

CDG
MIA
Excellent 10.0

From the boarding, to the friendly hostesses to the food and the business class seat, I was impressed all the way. My first time to fly Air France business to the US and it was great. I recommend it!

I just expected better toilet bag for business but what was given out was just basic.

JFK
CDG
Mediocre 2.0

Nothing

Airplane delay to take off 1 unknown reason After landing in Paris 50 min sitting inside airplane moving around Late for flight transfer. Sitting in Paris airport 5 hours. Customer service no working. Never fly Air France anymore !

ATL
CDG
Good 7.6

Boarding this large plane went relatively quickly and orderly.

Seats were tight and got a bit uncomfortable. This was a long flight. Could use a much better cushion.

Mon, Sep 24
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
23h 05m
Fri, Nov 2
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
53h 15m
$2101
Trip: 40 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 4,839 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.4
Entertainment
8.2
Food
7.7
HKG
SIN
Good 7.3

The a330 is showing its age and the food on board was not good. Otherwise it would have been an excellent flight

HKG
BKK
Excellent 8.0

The flight is on time

Immigration waiting time is long

BKK
HKG
Okay 5.3

Seat recline marginally more than in economy, but 2x+ the price. Boarding process for PE abysmal. Food - slapped on a tray.

HKG
SFO
Okay 4.3

There was nothing worth liking . Plane was dirty in side . Tray tables were broken. Used pillows without hygiene sealed bags. Toilets were missing basic supplies.

Crew was aggressive and impolite even with senior citizens . There is no point in speaking English with senior citizen of Asian decent. Making faces and giggling among themselves with a sarcasm.

SFO
HKG
Excellent 8.0

Food was fine. Everything was run efficiently. I have no complaints.

Sun, Oct 14
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
27h 30m
Mon, Oct 22
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
27h 45m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Sep 23
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
34h 10m
Tue, Oct 30
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
56h 25m
Trip: 38 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Mar 8
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
34h 14m
Mon, Mar 11
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
41h 30m
$1207
Trip: 3 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2,920 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SIN
DEL
Excellent 10.0

The comfort and caring staff

Food serve a bit slow with the no of pax and long queue for the washroom

JFK
FRA
Excellent 8.6

Space in economy seat was good. Huge selection of movies. Food was tasty. On flights to Frankfurt, Singapore Airlines may want to keep more sparkling water in stock, as Europeans prefer this to still water.

There was a smell in the plane when I first arrived like vomit. It may have been the cleaning supplies.

HKG
SFO
Excellent 10.0

check in went smoothly. helper was friendly and helpful.

SIN
MEL
Excellent 8.0

Movies selection was great.

Food and comfort were not as great as I thought they would be. Not bad, but not worthy of the brand Singapore airlines.

LAX
PDX
Okay 5.3

They were polite.

Not as attentive as ANA or China Airlines. I had to give 4-5 request to get what I want.

Tue, Oct 2
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
23h 40m
Thu, Nov 1
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
30h 05m
$1306
Trip: 31 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 12,370 reviews
Overall
8.3
Boarding
8.3
Comfort
8.2
Crew
8.4
Entertainment
8.6
Food
8.1
DXB
BOM
Excellent 9.6

I like the most........ very comfortable take off n landing .... special compliments to the captain.... I specifically told this to an airhostess

Everything was good

JNB
DXB
Excellent 8.0

Emirates really knows how to treat customers

Flight was long

DXB
JNB
Excellent 10.0

Efficient and good actually good for airline food

Electronic equipment a bit out dated and below standard

DMM
DXB
Excellent 8.0

I liked the cooperation of the crew.

There's no specific reason to dislike, but 1 thing that they changed my schedule now,

DXB
CAI
Okay 5.3

Plane is good as usual

Food was not available “my choice “ Movies are the same for long time Comedy movies available are not comedy and old Crew were not responding in a professional way I was disappointed

Mon, Sep 24
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
26h 15m
Tue, Oct 30
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
31h 20m
$1346
Trip: 37 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8,451 reviews
Overall
8.3
Boarding
8.3
Comfort
8.1
Crew
8.6
Entertainment
8.3
Food
8.0
BOS
DOH
Excellent 9.6

The crew, especially Martin and Imen, were fabulous!

NBO
DOH
Excellent 8.3

Service was great for such a long flight. It would be good to have like a snack bar for people to purchase snacks.

The wedsite for Qatar could use some work.

DOH
BKK
Excellent 10.0

Everything

Non

DOH
PHL
Excellent 9.0

Cabin crew service was very good. Flght with Airbus 350 plane was really comfortable and quite. They put extra care for kids and babies and all of kids get gift bag with toys, chocolate etc. which makes everyone happy Especially kids. I personally like to watch new release movies and enjoyed to pass my flight time.

Their south indian food was testless in both inbound and outbound flight from Philadelphia to doha. Snacks was good but meal definitely they should have better to change it.

DOH
CDG
Excellent 9.0

I am very pleased to travel with Qatar airways. Qatar airways and Singapore Airlines are the best companies.

I was a little bit annoyed with the staff at the Doha airport at the boarding gate because she did not let me get in to boardin in priority even though with my privilege club card, I do have to insist after the call for zone 1 to proceed for boarding.

Mon, Oct 1
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
46h 35m
Wed, Oct 31
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
43h 20m
$1018
Trip: 31 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Sep 25
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
28h 35m
Mon, Oct 29
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
24h 10m
$1158
Trip: 35 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Sep 22
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
26h 15m
Tue, Oct 30
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
29h 10m
$1592
Trip: 39 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8,451 reviews
Overall
8.3
Boarding
8.3
Comfort
8.1
Crew
8.6
Entertainment
8.3
Food
8.0
DOH
PHL
Good 7.6

The crew was attentive and polite. The flights were on time, and the entertainment options were good. The Doha airport is quite nice, with many eating and retail options. although everything is very expensive, even by airport standards.

My wife and I personally don't mind a selection that leans heavily toward Indian food, but I imagine others will not. The main courses were mediocre and the "sandwich" offered between meals on the 13+ hour flight was cold, soggy and inedible. The seats on our A350 were hard and not very comfortable, and the recline function was difficult to operate. Security at the Doha airport was confusing. We had to go through 3 separate checkpoints for our transfer, each with different rules and procedures. The final check at our departure gate was the worst, with impatient officials giving hurried instructions in heavily-accented English, and scolding if passengers didn't understand. I was sent back through a second time to remove my camera from the bag (and to be scolded by the agent), and was patted down a second time coming back through the x-ray, which had green-lighted me both times. It made me wonder if this was a reaction to the extra scrutiny that Arab passengers receive from our airport security in the USA.

DOH
JNB
Excellent 9.0

The crew were very friendly and helpful.

It seems the major airlines use older aircraft when the destination of the flight is a third world country(or Africa). The seats aren't as comfortable and the entertainment system (screens) are not as good as a Qatar and Europe bound flights.

DOH
PHL
Excellent 9.0

Cabin crew service was very good. Flght with Airbus 350 plane was really comfortable and quite. They put extra care for kids and babies and all of kids get gift bag with toys, chocolate etc. which makes everyone happy Especially kids. I personally like to watch new release movies and enjoyed to pass my flight time.

Their south indian food was testless in both inbound and outbound flight from Philadelphia to doha. Snacks was good but meal definitely they should have better to change it.

DOH
BKK
Excellent 10.0

Everything

Non

DAC
DOH
Excellent 9.0

Cabin crew service was very good. Flght with Airbus 350 plane was really comfortable and quite. They put extra care for kids and babies and all of kids get gift bag with toys, chocolate etc. which makes everyone happy Especially kids. I personally like to watch new release movies and enjoyed to pass my flight time.

Their south indian food was testless in both inbound and outbound flight from Philadelphia to doha. Snacks was good but meal definitely they should have better to change it.

Mon, Oct 1
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
24h 10m
Sat, Nov 3
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
40h 05m
$1786
Trip: 34 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 5,727 reviews
Overall
7.4
Boarding
7.4
Comfort
7.3
Crew
7.6
Entertainment
7.4
Food
7.0
AUH
DUB
Excellent 10.0

Got an upgrade to business class

JFK
AUH
Excellent 10.0

Everything is fine and good

DMM
AUH
Mediocre 2.0

Nothing

Flight delayed Baggage lost & didn’t receive upon arrival

AUH
JFK
Excellent 9.0

Head rest helped me get sleep in economy section

AUH
IAD
Excellent 8.3

One food option.. VEGETARIAN.. when asked the crew member as to why vegetarian only.. she said not sure, but may be because most of the passengers were vegetarians.. REALLY????? Also no ice with drinks.. because they didn’t have ice!!!! But apart from this, it was another quality Etihad flight. Just didn’t expect the above inconveniences from Etihad! This is the first time I experience this with them.

Tue, Oct 2
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
28h 35m
Mon, Oct 29
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
24h 10m
$1158
Trip: 28 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Sep 22
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
23h 40m
Wed, Oct 31
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
26h 50m
$1736
Trip: 40 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 12,370 reviews
Overall
8.3
Boarding
8.3
Comfort
8.2
Crew
8.4
Entertainment
8.6
Food
8.1
DXB
CAI
Okay 5.3

Plane is good as usual

Food was not available “my choice “ Movies are the same for long time Comedy movies available are not comedy and old Crew were not responding in a professional way I was disappointed

DXB
JNB
Excellent 10.0

Efficient and good actually good for airline food

Electronic equipment a bit out dated and below standard

SFO
DXB
Okay 5.0

Nothing specific

I was specifically asked for the vegetarian food n mentioned that I am highly allergic to the eggs....in spite of that no vegetarian food was served till I asked the staff about my food...i was told that there is no vegetarian food for me....n at last I was served with very basic food .....not at all good...i could not eat that n stayed hungry n could not even sleep due to headache n acidity This FOOD experience was extremely Disappointing

DEL
DXB
Okay 4.6

With more focus on menat and India what used to be a good airline is slowly turning to cattle carrier.

DXB
BOM
Okay 5.0

Had "summon the crew" light on for 40 minutes, no one showed up

Sat, Sep 29
IAD
Washington Dulles Intl
USM
Koh Samui Ko Samui
40h 25m
Sun, Oct 28
USM
Koh Samui Ko Samui
IAD
Washington Dulles Intl
35h 25m
$3831
Trip: 30 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 2,246 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.4
AMS
TLS
Excellent 9.6

The movie selection did not seem extremely varied.

SIN
DPS
Excellent 10.0

Everything is top notch for an airline company.

Nothing.... I enjoyed every moment of the flight.

BCN
AMS
Excellent 9.6

Boarding was confusing and disorganized

JFK
AMS
Excellent 10.0

The attendants took great care of us. Super smooth flight.

LOS
AMS
Excellent 10.0

Wifi on Board

Nothing

*
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