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Cheap flights from Thailand to Washington, D.C. Dulles Intl Airport from ฿17,675

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — IAD
17 Feb — 24 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 18 January 2026.

Round-trip from

฿29,459

One-way from

฿17,675

Popular in

August

Cheapest in

October

Average price

฿39,957
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 10/4-25/4
  • 2 total stops
  • 67h 15m total
  • Thailand to Washington, D.C.
Search Deals
22/4
  • 22/4
  • 3 total stops
  • 58h 35m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿22,721 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿28,424 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 18 January 2026.

Fri 10/415:20
BKK
-
IAD
1 stop35h 25m
ซาอุเดียแอร์ไลน์
Sat 25/418:50
IAD
-
BKK
1 stop31h 50m
ซาอุเดียแอร์ไลน์
Deal found 17/1฿29,459
Mon 16/210:10
BKK
-
IAD
2 stops45h 10m
IndiGo
Mon 23/221:15
IAD
-
BKK
2 stops35h 50m
IndiGo
Deal found 18/1฿31,088
Sat 14/210:10
BKK
-
IAD
2 stops45h 10m
IndiGo
Sat 21/221:15
IAD
-
BKK
2 stops35h 50m
IndiGo
Deal found 17/1฿31,245
Mon 16/217:05
BKK
-
IAD
2 stops28h 00m
Multiple Airlines
Mon 23/214:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 18/1฿31,339
Tue 17/210:10
BKK
-
IAD
2 stops45h 10m
Multiple Airlines
Tue 24/214:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 18/1฿31,402
Sun 25/110:50
BKK
-
IAD
2 stops44h 30m
Multiple Airlines
Sat 7/214:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 17/1฿31,997
Wed 6/513:25
BKK
-
IAD
2 stops45h 44m
Multiple Airlines
Wed 13/515:35
IAD
-
BKK
1 stop28h 10m
Multiple Airlines
Deal found 18/1฿32,028
Tue 3/310:50
BKK
-
IAD
2 stops34h 15m
Multiple Airlines
Tue 10/315:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 17/1฿32,122
Sun 25/115:20
BKK
-
IAD
1 stop35h 25m
ซาอุเดียแอร์ไลน์
Sat 7/218:10
IAD
-
BKK
1 stop41h 20m
ซาอุเดียแอร์ไลน์
Deal found 17/1฿32,185
Sat 24/117:15
BKK
-
IAD
2 stops35h 11m
Multiple Airlines
Sat 31/118:04
IAD
-
BKK
2 stops29h 06m
Multiple Airlines
Deal found 17/1฿32,216
Wed 22/401:20
BKK
-
IAD
2 stops33h 49m
Multiple Airlines
Sun 26/415:35
IAD
-
BKK
1 stop21h 15m
Multiple Airlines
Deal found 18/1฿32,248
Mon 2/313:05
BKK
-
IAD
2 stops32h 00m
Multiple Airlines
Mon 9/315:35
IAD
-
BKK
1 stop40h 10m
Multiple Airlines
Deal found 16/1฿32,405

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 18 January 2026.
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

Sun 3/5

09:35-15:40

1 stop41h 05m

Washington, D.C. Dulles Intl

Wed 29/7

06:20-04:35

2 stops35h 15m

฿32,937

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 1/5

15:45-17:28

3 stops36h 43m

Washington, D.C. Dulles Intl

Sat 16/5

22:05-09:35

2 stops48h 30m

฿33,470

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 3/3

16:55-11:49

3 stops30h 54m

Washington, D.C. Dulles Intl

Tue 10/3

18:00-11:25

2 stops30h 25m

฿33,470

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 17/2

16:55-11:49

3 stops30h 54m

Washington, D.C. Dulles Intl

Tue 24/2

22:05-11:25

2 stops49h 20m

฿33,533

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Thu 23/4

16:50-16:05

2 stops34h 15m

Washington, D.C. Dulles Intl

Sun 26/4

15:35-02:40

2 stops24h 05m

฿33,815

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 8/4

10:50-17:05

2 stops41h 15m

Washington, D.C. Dulles Intl

Wed 9/9

15:25-09:45

2 stops31h 20m

฿34,097

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6/5

07:05-11:17

2 stops39h 12m

Washington, D.C. Dulles Intl

Wed 13/5

09:45-05:05

2 stops32h 20m

฿34,786

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 2/3

01:30-18:30

1 stop29h 00m

Washington, D.C. Dulles Intl

Tue 10/3

15:35-07:10

1 stop28h 35m

฿34,818

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 16/2

07:10-22:16

2 stops27h 06m

Washington, D.C. Dulles Intl

Mon 23/2

08:20-11:25

3 stops39h 05m

฿35,288

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Tue 17/2

20:50-15:55

2 stops31h 05m

Washington, D.C. Dulles Intl

Tue 24/2

14:35-04:20

2 stops25h 45m

฿35,538

Flights are sorted by cheapest return flights first.

Deals found on 17/1

Showing 1-10 of 44 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, June is the cheapest month in which you can book a flight from Thailand to Washington, D.C. Dulles Intl Airport (average of ฿29,271). Flying from Thailand to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of ฿35,413). 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.

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 18 January 2026.
Check out reviews from past customers who have flown with ANA, Korean Air, andQatar Airways 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.
ANA
8.4
Very Good
1,077 reviews
Check prices

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
ANA
8.4
Very Good
1,077 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Korean Air
8.4
Very Good
1,187 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
Qatar Airways
7.4
Good
3,717 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
United Airlines
7.4
Good
9,176 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
เอทิฮัดแอร์เวย์
7.3
Good
1,371 reviews
ANA
8.4
Very Good
1,077 reviews
Check prices

Overall

8.4

Comfort

8.2

Food

7.7

Crew

8.7

Entertainment

7.9

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!

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?

    United Airlines and เอทิฮัดแอร์เวย์ can get you from Thailand to Washington, D.C. Dulles Intl Airport in just under 35h 15m. Your travel time can differ by up to 5h 50m. Thailand and Washington, D.C. Dulles Intl Airport are separated by a distance of 13576 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?

    While some choose either Chiang Mai - Washington, D.C. Dulles Intl or Utapao Rayong Pattaya - Washington, D.C. Dulles Intl, Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl is the most popular route 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, June is the cheapest month in which you can book a flight from Thailand to Washington, D.C. Dulles Intl Airport (average of ฿29,271). Flying from Thailand to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of ฿35,413). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Thailand to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Dulles Intl flights
Chiang Mai to Baltimore flights
Chiang Mai to Reagan-National flights

Top 6 airlines flying from Thailand to Dulles Intl

Discover the top 6 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 18 January 2026.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿27,610Average฿30,320FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,410Average฿31,774FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿31,261Average฿31,638FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿31,691Average฿34,539FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿33,204Average฿39,461FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿35,226Average฿42,283FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

Can Cheapflights notify me if prices for flights from Thailand to Dulles Intl become cheaper?

Not ready to book yet? You can track prices for flights from Thailand to Dulles Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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