$477 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 3/23. 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 from Dulles Intl

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

Bangkok
Bangkok2 stops$877
Phuket City
Phuket City2 stops$877
Chiang Mai
Chiang Mai2 stops$1,167
Ko Samui
Ko Samui2 stops$1,328
Krabi
Krabi2 stops$1,148

Cheap Flight Deals from Dulles Intl to Thailand (IAD-TH0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Thailand that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Dulles Intl to Thailand

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Dulles Intl to Thailand.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:00 pm - 12:10 amIAD-BKK
43h 10m2 stops
7:35 pm - 3:40 pmBKK-IAD
31h 05m1 stop
$877Air China
Find Deal
Sat, Apr 12 - Mon, Apr 21
6:00 pm - 5:45 pmIAD-HKT
36h 45m2 stops
7:25 pm - 3:40 pmHKT-IAD
31h 15m1 stop
$877Air China
Find Deal
Sat, Apr 19 - Fri, Apr 25
12:30 pm - 3:25 pmIAD-BKK
39h 55m1 stop
11:15 am - 7:45 pmBKK-IAD
43h 30m1 stop
$1,035Turkish Airlines
Find Deal
Thu, May 1 - Tue, May 20
10:25 pm - 3:10 pmIAD-BKK
29h 45m1 stop
11:15 am - 10:45 amBKK-IAD
34h 30m1 stop
$1,038Turkish Airlines
Find Deal
Sun, Mar 23 - Tue, May 13
9:00 pm - 12:50 pmIAD-HKT
28h 50m1 stop
11:25 pm - 3:40 pmHKT-IAD
27h 15m1 stop
$1,060Qatar Airways
Find Deal
Mon, Mar 31 - Mon, Apr 7
9:05 pm - 6:50 amIAD-HKT
22h 45m1 stop
8:20 am - 4:55 pmHKT-IAD
43h 35m1 stop
$1,062Qatar Airways
Find Deal
Wed, Mar 19 - Tue, Mar 25
10:55 am - 12:00 pmIAD-HKT
38h 05m1 stop
7:55 pm - 8:40 amHKT-IAD
23h 45m1 stop
$1,130Emirates
Find Deal
Tue, May 6 - Tue, May 13
10:55 am - 12:00 pmIAD-HKT
38h 05m1 stop
7:55 pm - 8:40 amHKT-IAD
23h 45m1 stop
$1,259Emirates
Find Deal
Thu, Aug 21 - Wed, Sep 3
6:00 am - 9:55 pmIAD-CNX
28h 55m2 stops
11:15 pm - 11:15 amCNX-IAD
23h 00m1 stop
$1,738Korean Air
Find Deal
Thu, Apr 3 - Wed, Apr 9
12:50 pm - 2:05 pmIAD-CNX
38h 15m1 stop
11:15 pm - 11:15 amCNX-IAD
23h 00m1 stop
$2,059Korean Air
Find Deal
Wed, Mar 26 - Wed, Apr 23

Good to know

Low season

August

High season

November

Cheapest flight

$477
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 7% 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 from Washington Dulles Airport to Thailand 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 from Washington Dulles Airport to Thailand with an airline and back 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 from Washington Dulles Airport to Thailand 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

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be January, November and December. The cheapest month to fly from Washington, D.C. is April.
  • Morning departure is around 9% 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 1034 reviews
8.2Entertainment
8.3Comfort
8.5Boarding
8.1Food
8.7Crew
Airline reviews

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

6.0 GoodJohn, Feb 2025ATL - MCO
Read more Korean Air reviews

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

Need to have space for Cary on when traveler boarding any zone

When I selected my seats, it showed row 29 as the front row, so I paid extra to sit in what I thought would be the front row, but when I boarded the plane, row 29 was the second economy row. I was disappointed that I'd spent almost $100 more for no actual benefit.

everything was fine, would have liked better food but it was warm, great choices for movies

Unlimited drinks and snacks on this long flight. Very courteous Korean staff !!!

I like it when the plane have waited for passengers like us who are trying to catch the plane. Detroit was my mom's port of entry we spent too much time looking for our luggages at baggage claim which no problem. But then the problem occur after the immigration when the homeland security agents forgot to give us our passports which it took so long to find them and I was very anxious because we might not be able to catch our flights but luckily the plane to knoxville still sitting there and waiting for us. Praise the Lord for everything.

I took several flights that day, this was the only flight that was absolutely freezing!! It was so cold.

Good. Obviously there is a slightly condescending attitude of all American workers towards their customers but other than that all good.

It was a great experience in all aspects including passengers are respectful to each other. I will consider to fly with Korean Air again in the future.

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

Except for the uncleaned tray, and the delay in serving food for our section (which may have been due to the location of our row) everything else was good. The crew were very professional and responded to our requests promptly throughout the flight. We as a family were not disappointed by Emirates.

It was great, a little more leg room would have been better particularly since we were in premium economy

The boarding process was smooth and the stewardesses were nice. Some delays with drinks at the end of the flight, but no issues.

Very uncomfortable aircraft. No free entertainment or drinks. Food okay. Won't fly with them again.

Comfort poor, little leg room, cabin temperature too hot. No free entertainment. No complementary drinks. Overal experience poor and would not travel with them again.

Thay crew was so nice.Air hostess il ham was so nice.my mom was little scray with airplan turbulence she help us alot.

Seat 💺 was all the way on last row. Food was okay .

Charged for internet that never really worked. The food selection was just ok.

Boarding, seats, entertainment and service were all great. Food was great except for the fact that there were too many sweet items.

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.

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

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.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Overall was excellent. Will definitely us JetBlue in the future.

Very well organized both boarding and deplaning. Very satisfied with the service I received.

I rate it is good we had a 4-hour travel delay at one point but JetBlue gave out food vouchers and travel points credits for another flight so they try to make up for it

Smooth boarding and friendly crew. Unfortunately as soon as we boarded the unit that provides air circulation failed. The pilot informed us and requested maintenance technicians to check it out. The plane became uncomfortably warm without any fresh air coming in. Plus the repair delayed our departure. I am glad the maintenance crew were able to fix the problem. I also was without use of my tv monitor for the first 1/3rd of the trip.

Flight was on time arrived at the destination 10min early they kept in touch via email

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Good overall flight. Excellent crew. Food options could be improved.

Vegan food tasted good. Restroom could be kept cleaner. Seat tray table was a bit tilted so food tray kept sliding down a bit. Flight crew can be a little more friendly, caring and approachable. Their faces lacked smiles and tone was stern.

Flight was delayed then we had to redirect for medical emergency during which time we had no information on what is the plan. The connecting flight was also delayed.

Professional & courteous cabin crew. Food was very good even in economy class

7 stars hospitality and an excellent service by the Turkish Airline entire team. Somehow, our membership numbers for mileage points were not indicated on our boarding passes issued at O’Hare Airport by the Turkish Airlines check in desk. During transit in Istanbul, I brought to attention of customer service Turkish Airlines. Please have our mileage points posted to our membership account from O’Hare Chicago to Lahore for both my wife Kaukab Shirazi Thank you

Terrible boarding experience, with an incomprehensible assignment of priorities. “Fast track” was the slowest. Poor system planning.

Terrible boarding process, no proper line maintained even for business class, crews are not very attentive, business class food quality / variety / quantity have gone down, everything has become cheap.

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