$437 Find Cheap Flights from Washington Dulles Airport to Thailand

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Thailand departing on 3/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Best Thailand Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Bangkok
Bangkok1 stop$685
Phuket City
Phuket City2 stops$971
Chiang Mai
Chiang Mai2 stops$1,148
Koh Samui
Koh Samui2 stops$1,347
Krabi
Krabi2 stops$1,197

Good to know

Low season

August

High season

November

Cheapest flight

$437
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Washington Dulles Airport to Bangkok Suvarnabhumi Airport

FAQs - booking Thailand flights

  • How early should I arrive at IAD?

    Passengers flying from Washington Dulles Airport to Thailand should arrive at the airport at least 3h prior to the flight's scheduled departure. You won't run the risk of missing your flight this way, and you'll arrive at your boarding gate on time.

  • Where can I get assistance at any of the airports in Thailand?

    At HKT, you can get help from the information desks throughout the airport if you're looking for specific knowledge. On the other hand, at FRA, you can either utilize one of the various telephone services at the airport or go to the information desks in the Departures and Arrivals areas.

  • Can I spend the night at Washington Dulles International Airport (IAD)?

    Generally, Airside at Dulles offers the best sleeping alternatives, especially in Concourses C and D, where there are numerous armrest-free seats for stretching out. The landside is quite cold and noisy, and all couches have armrests; therefore, it is worthwhile to go through security before taking a nap. A blanket, warm clothes, and noise-canceling headphones or earplugs will help you sleep better even when it's not always warm and silent in the air.

  • Which is the most suitable ground transportation option in Thailand?

    Consider hiring a car if you want to thoroughly explore Thailand and its environs once you arrive at BKK or HKT. Budget, Hertz, Asap, Europcar, National, Avis, Bizcar, and Sixt are just a few of the many car rental companies. When you check in at either of the airports, there are a number of travel agencies that can help you get acquainted with the cities. The travel agencies are found in the arrivals area.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Thailand?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Thailand.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Thailand?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Thailand from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Thailand?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Thailand with an airline and back to Washington Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Thailand?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Thailand from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Thailand

  • Morning departure is around 2% more expensive than an evening flight, on average*.
  • Hong Kong Phuket International Airport (HKT) and Bangkok Suvarnabhumi International Airport (BKK) are the major airports in Thailand, serving most international flights. BKK serves as the hub of Emirates Airlines, Bangkok Airways, Sri Lankan Airlines, Indian Airlines and Thai Airways. On the other hand, HKT is the hub of Thai Airways, Thai AirAsia and Bangkok Airways.
  • If you are flying through Washington Dulles International Airport (IAD), you will find a military lounge located at the airport’s Main terminal across from the Baggage Claim Area 11 and 12 in the Arrivals level. The lounge offers complimentary services to active US military personnel and their families.
  • The airport offers exceptional shower facilities if you want to freshen up upon your arrival at BKK. The shower facilities are found in Concourse G in the International terminal’s Airside in the Miracle CIP First Class Lounges and Miracle Transit Hotel. On the hand, if you fly through HKT, you will find the shower facilities on the Arrivals level 5 in terminal 1.
  • IAD has a designated interactive children's playground situated on the airport’s Airside near Gate B70, where you can have your kids get rid of some steam before boarding their flights. Additionally, nursing mothers will find lactation suites at the Main Terminal and Gates B70, A20 and C11.
  • IAD offers services and facilities to travelers with limited mobility. The airport is outfitted with wheelchair-accessible parking spaces, restrooms and shuttles to simplify their movement throughout the airport. On the other hand, you can request additional assistance and wheelchair services at the Thailand airports where you are flying into.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Dulles Intl to Thailand

Need help choosing which airline to fly with from Dulles Intl to Thailand? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1027 reviews
8.2Entertainment
8.3Comfort
8.1Food
8.5Boarding
8.7Crew
Airline reviews

Glad you had Bibimbap which tasted much better than mesh potato or pasta.

10.0 ExcellentJ&S, Nov 2024SIN - ICN
Read more Korean Air reviews

Glad you had Bibimbap which tasted much better than mesh potato or pasta.

Excellent service, love the extra amenities (water bottles, blankets, etc.).

Absolutely horrible. The fight member crew or not very friendly and the food was horrible.

It would be better if flight crew can clearly communicate in english. But they are kind and accommodating. Food is good, especially the sandwiches on the self-serving snack trays. They are better than the ones served. Boarding was organized.

So far one of the good one , whenever I go to Korea , I always use Korean airline .

They had the same movie choice as my previous flight, not much of a choice, movies were not up to date, music was uninteresting. Other than sitting on the ground for 40 minutes after boarding the plane, with pilot telling us that they couldn't load the plane because of rain, (bullshit) We finally got into Bangkok of course 40 minutes late.

They could have had more up to date movies/better choice of music.

Terrible experience will never fly Delta again. Delayed flight with total disorganization and inept crew who wouldn’t communicate.

Will try never to fly Delta international again. Flight delayed and staff completely inept in dealing with it. Would not communicate, rude, completely disorganized. Once we reached Seoul the staff there had no idea what to do with us and led us around the airport from one pointless line to another. They were clearly not told how to manage the situation even though they had hours to make a plan. Never again.

They texted me my gate number and then they texted me again it’s now boarding but in different gate, and the gate was so far from the gate they texted me earlier. I have to run just to get to my flight. They always do that.

The entire crew went above and beyond. This was our first flight with our 3 month old, and they were accommodating and friendly. The crew is attentive and marks a HIGE difference to the regular runs with Avianca and LATAM.

Business class on this plane was adequate, service, amenities, swag, and crew was amazing!

Airline did not have enough vegetarian meals for all guests, and crew were not adequately trained to handle this.

Worst trip ever from the beginning to the end I will never travel with that airline again. I made a big mistake by not going with my regular schedule flight with Qatar airline. Even underpriced cheat me of my 134 dollars I paid for special seats and they kept my money and didn't pay the airline for the seats for me.

Worst flight I ever had I payed for special seats with underpriced which I never recieved. I will like you to make sure that I am refunded my 134.00 dollars that I paid for the seats that I never received. I am looking forward for Kayak to look into this issue with underpriced because they took my money and never booked the seats for me with the airline.

Not too happy with ground staff at Dubai airport. We had asked for wheel chair, and we were told to walk a long distance, poorly organised. And then at boarding to Mumbai flight wecwere treated rudely by the local Emirates staff forced to check in our cabin bags, we told them we were transiting.

My favorite airline when traveling to the UAE. Great food and great service.

I have a very good experience flighting with emirates. All my expectations were fit well.

Emirates is good airlines. But there plane seats were very small and congested. Need to little good and big seats in economy class.

Meals were delicious, however I got hungry between dinner and breakfast.

I sat in comfort plus. It was fine. Seats were comfortable. I got drinks and snacks.

Crew was nice. Flight was timely. Seats could be better as well as the food considering it’s first class.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

Good and consistent Printer in lounge did not work for me :(

Most of my discomfort was going through TSA. However, the Delta seats had inadequate leg room and I tried my very best to connect to the wi-fi and it was a cumbersome process that finally gave me the info that I needed to sign in AFTER I had completed the flight...Why make it so difficult to use? That said I really really appreciate the pilot taking a little extra time to avoid a bad storm area and both landings in Atlanta and Orlando were flawless to my delight!!!

Delayed in taking off because no flight crew. The in seat entertainment was working properly.

All fine save for the abominable catering. Really gone downhill. We found it all inedible.

I upgraded to first class only to find out that I still had no access to the sky lounge without a sky miles card or AmEx (something that should be emphasized outside of the fine print!) Also, no food or drink service provided during the flight, so I basically paid 4x more just for “free” checked baggage and a bigger seat. Not worth it.

I appreciated friendly service from check-in, to boarding, to in-flight amenities! Attendants were accommodating and helpful. Thank you! Elaine

Delta was really good about being transparent with why we were delayed it’s just that’s the plane was really old and outdated and a lot of the comfort and amenities we know Delta to have did not shine through

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

Check in desk people constrained by fear. Obvious typo on Uganda visa, even though approved, caused loss of flight. Something is definitely wrong with this system.

Between Air India and Qatar my luggage was lost for three days. I eventually found my own luggage location using the Apple Air Tag. Air India used a paper form to report my lost luggage. I could never get past getting past luggage personnel with my report number before they would hang up on me. Only after them specifically telling Air India at Chandigarh airport where my luggage was located which was right under their noses did they react. After three days I finally received my luggage. The Air India luggage folks didn’t seem proactive in finding the luggage’s rightful owner.

Staff was very friendly. There is no on board entertainment, but it’s such a short flight that it doesn’t matter. We also got a meal which was nice and unexpected due to the length of the flight.

Flight was fine overall. What you would expect from economy seats. I did appreciate the amenities (eyemask, earplugs, small toothbrush and toothpaste, thin socks).

Besides the flight cancellation, everything else was prefect. Kudos to Malaysian Airlines.

Operated by American Airlines. Very chaotic and the crew was bit rough responding any enquiries. Restricted leg space.. Qatar would have been better

Qatar airways from Doha to guangzhau was excellent big bird Boeing 777 more room and smoothly flight, I Love it

It was good no problems made it on time for the next flight overseas!

Check in was not available online. It was super long line to check in

I did not have a good experience from the first point of contact to the check in person to boarding and the comfort of the seats. I would not travel on Turkish again. I will let my family and friends know about my experience which was not a pleasant one.

Food quality and the overall service of the staff and significantly decreased. The flight was delayed at the Istanbul airport and the passengers were kept onboard for more than 3 hours. The staff didn’t kept the passengers informed and everyone was upset.

Cross Atlantic flight terrible aircraft TK10 on the way back : Old configuration tacky . The boarding in Istanbul at the gate fly TK686 was a mess unorganized , very rude ground staff . Overall never again

The food served was frozen salad and hummus. The hot meal was fine. Crew was doing bare minimum

I enjoy flying with Turkish Airlines and such good hospitality among the crew memebers

Good food and wine. Some of the Guy who are in charge to board Passengers on the plane couldn’t use the word “Please” to direct them drop their hand luggage to be loaded on Plane bcos he said the inside storage may not have enough room for all.

Turkish Airlines apparently no longer gives you 2 checked bags allowance on international flights, so that pleasure cost me $165 for my second suitcase at the airport. On top of that, they damaged that very suitcase, which happens to be a designer one and part of a set - ripped one of the four wheels right off.

Pretty standard for long haul international flying. Food was fine, tv/movie selection was great, wifi did not work at all, crew was pleasant enough.

Very poor service. Not friendly and special food ordered but not served

Book cheap flights from Washington, D.C. to Thailand

Recent round-trip flight deals

4/22Tue
1 stopAir India
33h 25mIAD-BKK
4/29Tue
1 stopAir India
24h 20mBKK-IAD
$685
4/11Fri
1 stopAir India
39h 50mIAD-BKK
4/25Fri
1 stopAir India
24h 20mBKK-IAD
$700
2/9Sun
1 stopTurkish Airlines
37h 10mIAD-BKK
2/19Wed
1 stopTurkish Airlines
42h 00mBKK-IAD
$873
2/18Tue
1 stopTurkish Airlines
26h 40mIAD-BKK
3/25Tue
1 stopTurkish Airlines
45h 30mBKK-IAD
$874
1/17Fri
2 stopsQatar Airways
36h 50mIAD-CNX
1/26Sun
2 stopsQatar Airways
39h 30mCNX-IAD
$1,296
1/17Fri
2 stopsQatar Airways
36h 50mIAD-CNX
1/24Fri
2 stopsQatar Airways
39h 30mCNX-IAD
$1,318
3/26Wed
2 stopsKorean Air
32h 00mIAD-CNX
4/23Wed
1 stopKorean Air
23h 00mCNX-IAD
$1,727
3/26Wed
1 stopDelta
38h 15mIAD-CNX
4/23Wed
1 stopDelta
23h 00mCNX-IAD
$1,780
3/31Mon
2 stopsDelta
41h 00mIAD-CNX
4/16Wed
1 stopDelta
23h 00mCNX-IAD
$1,785
1/22Wed
1 stopKorean Air
23h 15mIAD-CNX
2/18Tue
1 stopKorean Air
30h 30mCNX-IAD
$2,084

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Recent one-way flight deals

3/14Fri
1 stopAir India
40h 05mIAD-BKK
$437
2/4Tue
2 stops
42h 40mIAD-DMK
$504
1/13Mon
1 stopTurkish Airlines
37h 10mIAD-BKK
$521
1/12Sun
1 stopTurkish Airlines
30h 20mIAD-BKK
$530
1/12Sun
1 stopJetBlue
20h 10mIAD-BKK
$953
11/29Fri
1 stopJetBlue
20h 10mIAD-BKK
$985
1/1Wed
1 stopQatar Airways
28h 45mIAD-BKK
$1,057
12/8Sun
1 stopQatar Airways
20h 20mIAD-HKT
$1,110
2/3Mon
1 stopKorean Air
38h 15mIAD-CNX
$1,213
1/5Sun
1 stopKorean Air
23h 15mIAD-CNX
$1,460

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Last minute flights from Dulles Intl to Thailand

Last minute flight, train and bus deals

11/21Thu
multi-stopTurkish Airlines
30h 20mIAD-BKK
12/12Thu
multi-stopTurkish Airlines
42h 00mBKK-IAD
$1,066
11/25Mon
multi-stopEthiopian Air
27h 50mIAD-BKK
12/3Tue
multi-stopEthiopian Air
29h 30mBKK-IAD
$1,196
11/25Mon
multi-stopEthiopian Air
27h 50mIAD-BKK
12/1Sun
multi-stopEthiopian Air
29h 30mBKK-IAD
$1,198
11/22Fri
multi-stopQatar Airways
20h 10mIAD-BKK
11/23Sat
multi-stopQatar Airways
25h 55mBKK-IAD
$1,380
11/24Sun
multi-stopQatar Airways
20h 10mIAD-BKK
12/3Tue
multi-stopQatar Airways
36h 45mBKK-IAD
$1,430
11/24Sun
multi-stopJetBlue
20h 10mIAD-BKK
12/24Tue
multi-stopJetBlue
24h 55mBKK-IAD
$1,485
11/24Sun
multi-stopJetBlue
20h 10mIAD-BKK
12/3Tue
multi-stopJetBlue
25h 55mBKK-IAD
$1,550
11/25Mon
multi-stopSAUDIA
55h 30mIAD-BKK
12/21Sat
multi-stopSAUDIA
35h 25mBKK-IAD
$1,626
11/24Sun
multi-stopKorean Air
42h 01mIAD-CNX
12/2Mon
multi-stopKorean Air
21h 35mCNX-IAD
$3,289
11/24Sun
multi-stopKorean Air
23h 15mIAD-CNX
12/2Mon
multi-stopKorean Air
21h 35mCNX-IAD
$3,334

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Everything you need to know for your flight from Dulles Intl to Thailand

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