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Thailand (ภาษาไทย)
ภาษาไทย

Cheap flights from Thailand to Washington, D.C. from ฿14,789

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 16/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Washington, D.C.

Keep the following information in mind while searching for Thailand to Washington, D.C. flight deals. Data was last updated 21 November 2025.

Round-trip from

฿29,546

One-way from

฿14,789

Popular in

August

Cheapest in

October

Average price

฿36,163
18/2-23/2
  • 18/2-23/2
  • 4 total stops
  • 99h 30m total
  • Thailand to Washington, D.C.
Search Deals
16/12
  • 16/12
  • 3 total stops
  • 51h 49m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (฿68,621 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿31,207 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Thailand to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to Washington, D.C.
Explore the most affordable flight options available from Thailand to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2025.

Thu 27/1119:30BKK - IAD
1 stop35h 00mMultiple Airlines
Thu 15/114:35IAD - BKK
1 stop20h 45mMultiple Airlines
Deal found 20/11฿32,692
Fri 12/1214:40BKK - IAD
1 stop36h 50mเอทิฮัดแอร์เวย์
Sat 3/114:35IAD - BKK
1 stop20h 45mเอทิฮัดแอร์เวย์
Deal found 20/11฿32,984
Mon 22/1213:40DMK - IAD
2 stops31h 25mMultiple Airlines
Tue 6/114:35IAD - DMK
2 stops25h 45mMultiple Airlines
Deal found 19/11฿33,017
Thu 27/1119:30BKK - IAD
1 stop35h 00mMultiple Airlines
Wed 14/114:35IAD - BKK
1 stop20h 45mMultiple Airlines
Deal found 20/11฿33,828
Mon 22/1216:55BKK - DCA
3 stops30h 02mUnited Airlines
Tue 6/119:59DCA - BKK
2 stops40h 21mUnited Airlines
Deal found 19/11฿33,990
Mon 22/1205:50BKK - IAD
1 stop25h 30mMultiple Airlines
Tue 6/113:30IAD - BKK
2 stops43h 35mMultiple Airlines
Deal found 19/11฿34,055
Sun 21/1205:50BKK - IAD
1 stop41h 55mMultiple Airlines
Wed 7/121:15IAD - BKK
2 stops35h 50mMultiple Airlines
Deal found 19/11฿34,703
Mon 22/1215:30BKK - IAD
2 stops39h 50mIndiGo
Tue 6/113:30IAD - BKK
2 stops43h 35mIndiGo
Deal found 19/11฿34,865
Sun 21/1215:30BKK - IAD
2 stops39h 50mIndiGo
Wed 7/113:30IAD - BKK
2 stops43h 35mIndiGo
Deal found 19/11฿34,930
Wed 3/1207:10BKK - DCA
2 stops26h 26mUnited Airlines
Mon 5/108:30DCA - BKK
3 stops38h 55mUnited Airlines
Deal found 19/11฿35,611
Mon 22/1219:30BKK - IAD
1 stop35h 00mAir China
Tue 6/122:00IAD - BKK
1 stop32h 05mAir China
Deal found 19/11฿35,709
Sun 21/1216:55BKK - IAD
3 stops35h 29mUnited Airlines
Wed 7/108:25IAD - BKK
2 stops32h 45mUnited Airlines
Deal found 19/11฿35,903

Cheapflights Fare Finder

 
Customise your flight search to find flights from Thailand to Washington, D.C. 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 21 November 2025.
Use the filters below to find and compare flights from Thailand to Washington, D.C. that are best for you.

Fly from

Thailand

Fly to

Washington, D.C.

Route

Depart

Return

Price

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 18/2

13:40-09:05

2 stops31h 25m

Washington, D.C. Dulles Intl

Mon 23/2

14:35-02:30

2 stops23h 55m

฿31,136

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 1/3

13:40-09:05

2 stops31h 25m

Washington, D.C. Dulles Intl

Tue 31/3

15:35-04:25

2 stops25h 50m

฿31,946

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 23/1

02:15-20:00

2 stops29h 45m

Washington, D.C. Reagan-National

Fri 27/2

18:59-11:30

2 stops52h 31m

฿33,373

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Tue 5/5

02:40-05:40

2 stops38h 00m

Baltimore/Washington

Wed 13/5

15:30-09:45

2 stops31h 15m

฿33,536

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5/5

02:40-17:05

2 stops49h 25m

Washington, D.C. Dulles Intl

Wed 13/5

17:30-09:45

2 stops29h 15m

฿33,536

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 18/2

08:00-19:59

2 stops23h 59m

Washington, D.C. Reagan-National

Mon 23/2

09:40-22:30

2 stops24h 50m

฿33,600

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 17/5

10:50-17:05

2 stops41h 15m

Washington, D.C. Dulles Intl

Fri 29/5

16:30-16:20

2 stops36h 50m

฿33,600

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 2/4

15:40-11:45

3 stops31h 05m

Washington, D.C. Reagan-National

Tue 14/4

11:30-09:45

3 stops35h 15m

฿33,860

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

13:15-13:15

1 stop37h 00m

฿33,860

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 5/3

09:40-09:50

1 stop36h 10m

Washington, D.C. Dulles Intl

Wed 15/4

13:15-23:40

1 stop23h 25m

฿33,860

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 60 results
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Best time to book a flight from Thailand to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

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

Currently, March is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿29,773). Flying from Thailand to Washington, D.C. in December is currently the most expensive (average of ฿34,768). 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 WAS?

Find hourly flight availability from Thailand to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 November 2025.

It’s optimal to fly from Thailand to Washington, D.C. at midday. By choosing this option you can save up to 62% on the cost of your flight, compared to a flight in the evening.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 21 November 2025.
Get a feel of what it's like to fly with ANA, Korean Air, andเดลต้า from Thailand to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very Good
1,009 reviews
Check prices

Overall

8.4

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Food

7.7

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.
ANA
8.4
Very Good
1,009 reviews
ANA
8.4
Very Good
1,009 reviews
Check prices

Overall

8.4

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Food

7.7

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.
Korean Air
8.4
Very Good
1,170 reviews
ANA
8.4
Very Good
1,009 reviews
Check prices

Overall

8.4

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Food

7.7

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.
เดลต้า
7.9
Good
8,003 reviews
ANA
8.4
Very Good
1,009 reviews
Check prices

Overall

8.4

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Food

7.7

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.
Qatar Airways
7.4
Good
3,664 reviews
ANA
8.4
Very Good
1,009 reviews
Check prices

Overall

8.4

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Food

7.7

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.
United Airlines
7.4
Good
9,035 reviews
ANA
8.4
Very Good
1,009 reviews
Check prices

Overall

8.4

Crew

8.7

Entertainment

7.9

Comfort

8.2

Boarding

8.6

Food

7.7

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 Washington, D.C.. 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.?

    Departing from Thailand to Washington, D.C. will take you 20h 55m. Airlines will cover 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 cheapest airlines to fly from Thailand to Washington, D.C. one-way?

    The cheapest airline one-way is แอร์แคนาดา, with whom users have recently found tickets for as low as ฿19,816. However, be on the lookout for offers from Korean Air and China Airlines, as they are both options that can get you from Thailand to Washington, D.C. for a low price.

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

    The most popular route from Thailand to Washington, D.C. is Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl. You may also consider Bangkok Suvarnabhumi - Baltimore/Washington or Bangkok Suvarnabhumi - Washington, D.C. Reagan-National.

  • Can I find deals for flights from Thailand to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Thailand to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Thailand to Washington, D.C.?

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

  • Can I find deals for business class flights from Thailand to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Thailand to Washington, D.C. 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.?

    Currently, March is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿29,773). Flying from Thailand to Washington, D.C. in December is currently the most expensive (average of ฿34,768). 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 Washington, D.C.

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

Top 6 airlines flying from Thailand to Washington, D.C.

Discover the top 6 airlines that operate flights from Thailand to Washington, D.C.. 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 21 November 2025.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿28,574Average฿31,378FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿31,478Average฿33,298FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapest฿33,911Average฿38,403FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿34,363Average฿42,172FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿39,855Average฿45,841FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest฿42,387Average฿47,516FlexibilityNo cancel feeOn-time75%
Search Emirates 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 Washington, D.C.?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Thailand to Washington, D.C.. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Washington, D.C.?

Cheapflights simply makes it quick and affordable to book flights from Thailand to Washington, D.C. by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Thailand to Washington, D.C. with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Thailand to Washington, D.C., users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Thailand to Washington, D.C. become cheaper?

Yes! Start tracking prices for Thailand to Washington, D.C. flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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