Cheap flights from Thailand to Washington, D.C. Dulles Intl Airport from ฿17,269

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — IAD
8 Jan — 15 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to Dulles Intl
Explore the most affordable flight options available from Thailand to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 December 2025.

Thu 25/1201:30BKK - IAD
1 stop29h 00mAir China
Fri 2/122:00IAD - BKK
1 stop35h 30mAir China
Deal found 7/12฿31,799
Sun 21/1210:10BKK - IAD
1 stop37h 35mเตอร์กิชแอร์ไลน์
Thu 1/113:30IAD - BKK
1 stop31h 10mเตอร์กิชแอร์ไลน์
Deal found 7/12฿33,519
Sat 20/1215:30BKK - IAD
2 stops39h 50mIndiGo
Wed 14/113:30IAD - BKK
2 stops43h 35mIndiGo
Deal found 8/12฿35,112
Fri 26/1208:15BKK - IAD
2 stops24h 44mMultiple Airlines
Fri 2/114:35IAD - BKK
1 stop40h 10mMultiple Airlines
Deal found 7/12฿35,240
Fri 19/1202:00BKK - IAD
1 stop25h 55mMultiple Airlines
Wed 14/120:05IAD - BKK
1 stop29h 00mMultiple Airlines
Deal found 7/12฿35,622
Sat 20/1200:55BKK - IAD
2 stops34h 32mเดลต้า
Tue 19/507:10IAD - BKK
2 stops27h 35mเดลต้า
Deal found 8/12฿36,706
Sat 20/1202:55BKK - IAD
1 stop42h 10mเอทิฮัดแอร์เวย์
Fri 2/114:35IAD - BKK
1 stop40h 10mเอทิฮัดแอร์เวย์
Deal found 8/12฿37,534
Sun 21/1210:10BKK - IAD
1 stop37h 35mเตอร์กิชแอร์ไลน์
Tue 19/521:40IAD - BKK
1 stop21h 00mเตอร์กิชแอร์ไลน์
Deal found 8/12฿39,764
Mon 22/1219:30BKK - IAD
1 stop35h 00mAir China
Fri 2/122:00IAD - BKK
1 stop32h 05mAir China
Deal found 7/12฿40,306
Thu 18/1208:50CNX - IAD
1 stop36h 15mเอทิฮัดแอร์เวย์
Fri 2/114:35IAD - CNX
1 stop27h 30mเอทิฮัดแอร์เวย์
Deal found 9/12฿54,963
Wed 17/1200:15CNX - IAD
2 stops35h 12mเดลต้า
Fri 2/107:05IAD - CNX
2 stops27h 50mเดลต้า
Deal found 9/12฿55,090
Fri 26/1216:30DMK - IAD
2 stops28h 35mMultiple Airlines
Fri 2/110:40IAD - DMK
2 stops27h 50mMultiple Airlines
Deal found 7/12฿55,281

Find flight deals from Thailand to Dulles Intl

Keep the following information in mind while searching for Thailand to Dulles Intl flight deals. Data was last updated 9 December 2025.

Round-trip from

฿31,799

One-way from

฿17,269

Popular in

August

Cheapest in

October

Average price

฿40,306
Air China
  • Air China
  • 25/12-2/1
  • 2 total stops
  • 64h 30m total
  • Thailand to Washington, D.C.
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 25/12
  • 1 total stop
  • 36h 15m total
  • Thailand to Washington, D.C.
Highest demand for flights based on searches. 2% potential increase in price (฿33,896 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (฿29,988 potential savings vs. average return price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customise your flight search to find flights from Thailand to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 9 December 2025.
Use the filters below to find and compare flights from Thailand to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Thailand

Fly to

Dulles Intl

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 27/2

00:55-09:50

1 stop20h 55m

Washington, D.C. Dulles Intl

Sat 16/5

13:15-23:40

1 stop23h 25m

฿33,296

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 28/4

07:00-22:43

2 stops26h 43m

Washington, D.C. Dulles Intl

Tue 25/8

13:05-09:45

3 stops33h 40m

฿33,456

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 23/1

07:10-19:35

2 stops24h 25m

Washington, D.C. Dulles Intl

Mon 26/1

13:05-11:25

3 stops34h 20m

฿33,583

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 29/1

09:40-09:50

1 stop36h 10m

Washington, D.C. Dulles Intl

Mon 9/2

11:50-00:45

1 stop24h 55m

฿33,647

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 26/2

09:40-09:50

1 stop36h 10m

Washington, D.C. Dulles Intl

Tue 3/3

11:50-23:20

1 stop23h 30m

฿33,647

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 24/2

09:40-09:50

1 stop36h 10m

Washington, D.C. Dulles Intl

Mon 2/3

11:50-00:55

1 stop25h 05m

฿33,647

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 27/1

09:40-09:50

1 stop36h 10m

Washington, D.C. Dulles Intl

Mon 9/2

11:50-00:45

1 stop24h 55m

฿33,647

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 5/6

23:30-11:15

1 stop22h 45m

Washington, D.C. Dulles Intl

Mon 13/7

13:30-01:05

1 stop24h 35m

฿33,647

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 28/1

00:55-09:50

1 stop20h 55m

Washington, D.C. Dulles Intl

Sun 8/2

11:50-00:45

1 stop24h 55m

฿33,647

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 5/6

09:50-11:15

1 stop36h 25m

Washington, D.C. Dulles Intl

Thu 9/7

13:30-01:05

1 stop24h 35m

฿33,647

Flights are sorted by cheapest return flights first.

Deals found on 7/12

Showing 1-10 of 52 results
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Best time to book a flight from Thailand to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Thailand with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Thailand to Washington, D.C. Dulles Intl Airport

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

Currently, March is the cheapest month in which you can book a flight from Thailand to Washington, D.C. Dulles Intl Airport (average of ฿29,218). Flying from Thailand to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of ฿34,093). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TH to IAD?

Find hourly flight availability from Thailand to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 December 2025.

It’s optimal to fly from Thailand to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 63% on the cost of your flight, compared to a flight in the evening.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 9 December 2025.
Check out reviews from past customers who have flown with ANA, Korean Air, andEmirates from Thailand to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
8.4
Very Good

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Comfort

8.2

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Related info for your journey

Find useful and relevant information for your journey from Thailand to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Thailand to Washington, D.C. Dulles Intl Airport?

    Korean Air, United Airlines, and เอทิฮัดแอร์เวย์ can get you from Thailand to Washington, D.C. Dulles Intl Airport in just under 20h 55m. Your travel time can differ by up to 15h 20m. Thailand and Washington, D.C. Dulles Intl Airport are separated by a distance of 14149 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Thailand to Washington, D.C. Dulles Intl Airport?

  • Can I find deals for flights from Thailand to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Thailand to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Thailand to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Dulles Intl.

  • Can I find deals for business class flights from Thailand to Dulles Intl?

    Yes. Cheapflights offers flight deals from Thailand to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Thailand to Washington, D.C. Dulles Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Thailand to Washington, D.C. Dulles Intl Airport (average of ฿29,218). Flying from Thailand to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of ฿34,093). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Thailand to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Thailand to Dulles Intl

Discover the top 7 airlines that operate flights from Thailand to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 9 December 2025.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿28,071Average฿30,826FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,924Average฿32,347FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿31,783Average฿32,167FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿32,220Average฿35,867FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿33,758Average฿41,431FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿39,154Average฿46,595FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest฿41,642Average฿45,831FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Thailand to Dulles Intl?

When you search for this flight from Thailand to Dulles Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Dulles Intl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dulles Intl from Thailand.

Can Cheapflights find flights from Thailand to Dulles Intl with no change fees?

Yes, we can. To see specific flights from Thailand to Dulles Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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