$483 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 8/19. 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
Bangkok1 stop$631
Phuket City
Phuket City2 stops$993
Chiang Mai
Chiang Mai2 stops$1,119
Ko Samui
Ko Samui2 stops$1,252
Krabi
Krabi2 stops$1,111

Cheap Flights from Dulles Intl to Thailand

 
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 for you by selecting your travel dates on KAYAK.
Choose your dates
Air China Logo
11:00 pm - 6:10 pmIAD-BKK
32h 10m1 stop
Air China Logo
7:35 pm - 7:30 pmBKK-IAD
34h 55m1 stop
$631Air China
Find Deal
Sat, May 3 - Thu, May 22
Etihad Airways Logo
10:05 pm - 6:35 pmIAD-BKK
33h 30m1 stop
Etihad Airways Logo
9:05 am - 4:10 pmBKK-IAD
42h 05m1 stop
$927Etihad Airways
Find Deal
Sat, May 3 - Thu, May 22
Qatar Airways Logo
9:00 pm - 12:55 pmIAD-BKK
28h 55m1 stop
Qatar Airways Logo
2:30 am - 3:40 pmBKK-IAD
24h 10m1 stop
$934Qatar Airways
Find Deal
Wed, Sep 10 - Tue, Sep 16
Qatar Airways Logo
9:00 pm - 1:25 pmIAD-BKK
29h 25m1 stop
Qatar Airways Logo
8:00 pm - 3:40 pmBKK-IAD
30h 40m1 stop
$962Qatar Airways
Find Deal
Mon, Oct 6 - Mon, Oct 13
Turkish Airlines Logo
1:30 pm - 3:25 pmIAD-BKK
38h 55m1 stop
Turkish Airlines Logo
10:45 pm - 7:45 pmBKK-IAD
32h 00m1 stop
$1,035Turkish Airlines
Find Deal
Thu, May 15 - Tue, Jun 24
Turkish Airlines Logo
1:30 pm - 3:25 pmIAD-BKK
38h 55m1 stop
Turkish Airlines Logo
10:45 pm - 7:45 pmBKK-IAD
32h 00m1 stop
$1,037Turkish Airlines
Find Deal
Wed, May 14 - Wed, Jun 25
Emirates Logo
10:55 am - 11:35 amIAD-KBV
37h 40m1 stop
Emirates Logo
9:25 am - 8:40 amKBV-IAD
34h 15m2 stops
$1,302Emirates
Find Deal
Mon, Sep 8 - Mon, Sep 29
Emirates Logo
10:55 am - 8:00 pmIAD-HKT
22h 05m1 stop
Emirates Logo
7:55 pm - 8:40 amHKT-IAD
23h 45m1 stop
$1,327Emirates
Find Deal
Tue, Jul 22 - Mon, Jul 28
Korean Air Logo
1:30 pm - 8:45 pmIAD-CNX
44h 15m1 stop
Korean Air Logo
9:45 pm - 10:55 amCNX-IAD
24h 10m1 stop
$1,936Korean Air
Find Deal
Mon, Aug 18 - Sun, Aug 31
Korean Air Logo
8:30 pm - 9:55 pmIAD-CNX
38h 25m2 stops
Korean Air Logo
9:45 pm - 10:55 amCNX-IAD
24h 10m1 stop
$1,941Korean Air
Find Deal
Mon, Aug 18 - Sun, Aug 31

KAYAK's insights & trends for Dulles Intl to Thailand flights

Get data-powered insights and trends into flights from Dulles Intl to Thailand to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest time of day to fly to Thailand?

The average price for all round-trip flights from Washington, D.C. Dulles Intl Airport to Thailand depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Thailand is generally in the evening, when round-trip flights cost $1,113 on average. Morning departures are around 21% more expensive than evening flights, on average. The most expensive time of day to fly to Thailand is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,342.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Thailand?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Thailand, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Thailand is September, when tickets cost $1,038 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,733 and $1,608 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Thailand?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Thailand clicked on KAYAK for each day over the last 12 months.
For Washington Dulles Airport to Thailand, Saturday is the cheapest day to fly on average and Friday is the most expensive. Flying from Thailand back to Washington Dulles Airport, the best deals are generally found on Sunday, with Saturday being the most expensive.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Thailand?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Thailand, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Thailand, you should book around 11 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low season

August

High season

November

Cheapest flight

$483
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 Phuket City

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

  • 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

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 1064 reviews
8.2Entertainment
8.7Crew
8.5Boarding
8.1Food
8.3Comfort
Airline reviews

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

8.0 ExcellentAnonymous, Apr 2025ICN - BKK
Read more Korean Air reviews

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

The food on this flight from NRT to ICN was average. The staff were very friendly, but the flight took about 60 minutes longer than it should have because the pilot was only flying at 330mph instead of 500-550. Not sure what the reason is for that, but it meant for a much longer flight.

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

long flights are difficult but the crew and amenities made it a very good experience

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

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.

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

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

Horrible. After paying for my seats, I was cramped, had no overhead bin space, freezing as the flight had no temperature controls, the food was awful and served cold, when asked for snacks was told to wait and then never received any. I booked this flight as a partner through American Airlines but will avoid in the future.

The staff were wonderful but the seats weren't very comfortable for a bigger guy like me.

Bad. Flight was very uncomfortable with narrow and shallow seats, very little food and water. I will not fly etihad again.

Boarding catastrophic let alone have to claimb the plain rather than using jetway. 5.5 hr delay leaving had to do stop in Lgw for a new crew which further compounded the delay. Connecting flight would not wait and had to pend a night in a hotel. Curiously my seat would not go full flat.

Good. The food was very bad. Except for the chicken rice, rest of the dish went to trash.

Long way to improve. Toilets not working. Bad handling when flight was canceled

Online was good boarding also but a child was crying all the way with no intervention from crew member.

1st of all on February 27th Abu Dhabi to Delhi flight the seat wasn't comfortable at all, coming back the Lounge at Abu Dhabi didn't have anything. Than the Food in the flight

1st time with. Etihad Airways and it was amazing from check in to crew. Great flight.

Good range of movies but lacking decent tv shows. Wifi was really expensive on this flight, considering flights under 7 hours have a $9.99 USD charge for streaming, to jump up to $24.99 for a 7 hour 40 flight seemed a little bit of a rip off. Staff are inattentive, and really need to improve on the customer experience. The new airport is fantastic, as is the new lounge, a huge upgrade from the old airport and lounge!

Ordered Vegan meal - it was ok, but not exceptional. Seat ok row 39 middle section aisle. Nearly full flight - crew was busy but they did the best they could. There was a USB A port at the seat. I listened to my own music and only looked at flight information. One nice thing was the connection information was made available in the screen.

Very nice and friendly crew. Boarding system can be improved.

The Etickets had been changed (Why?) without notice ; Hence, that caused troubles when checking in. Not until I contacted my ticket agent and was given correct Etickets could I then check in.

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

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