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Cheap flights from Thailand to Washington, D.C. from ฿16,524

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 29/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 23 December 2025.

Wed 24/1202:15BKK - DCA
2 stops30h 24mMultiple Airlines
Thu 8/118:56DCA - BKK
2 stops40h 44mMultiple Airlines
Deal found 21/12฿35,879
Thu 25/1222:05BKK - DCA
2 stops27h 48mJapan Airlines
Thu 8/117:30DCA - BKK
2 stops34h 55mJapan Airlines
Deal found 21/12฿41,574
Mon 22/1222:25BKK - IAD
1 stop22h 45mANA
Fri 2/108:15IAD - BKK
2 stops28h 05mANA
Deal found 22/12฿47,144
Mon 22/1222:25BKK - IAD
2 stops31h 05mMultiple Airlines
Fri 2/108:15IAD - BKK
2 stops28h 05mMultiple Airlines
Deal found 22/12฿54,364
Mon 22/1220:30BKK - IAD
1 stop31h 25mQatar Airways
Fri 2/120:05IAD - BKK
1 stop22h 10mQatar Airways
Deal found 22/12฿59,343
Mon 22/1220:30BKK - BWI
2 stops33h 48mAmerican Airlines
Fri 2/111:45BWI - BKK
2 stops30h 55mAmerican Airlines
Deal found 22/12฿61,863

Find 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 23 December 2025.

Round-trip from

฿27,975

One-way from

฿16,524

Popular in

August

Cheapest in

October

Average price

฿36,937
10/2-24/2
  • 10/2-24/2
  • 4 total stops
  • 94h 08m total
  • Thailand to Washington, D.C.
Search Deals
Air China
  • Air China
  • 29/12
  • 1 total stop
  • 31h 25m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (฿36,765 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿29,019 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 23 December 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.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 24/4

01:50-15:45

1 stop24h 55m

Washington, D.C. Dulles Intl

Sat 2/5

18:50-13:40

1 stop31h 50m

฿29,313

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 24/4

01:35-20:00

2 stops29h 25m

Washington, D.C. Reagan-National

Sat 2/5

18:59-10:55

2 stops28h 56m

฿30,963

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 10/2

15:30-19:20

2 stops39h 50m

Washington, D.C. Dulles Intl

Tue 24/2

21:15-21:05

2 stops35h 50m

฿31,243

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 22/1

08:15-21:58

2 stops25h 43m

Washington, D.C. Reagan-National

Thu 29/1

06:00-19:35

2 stops25h 35m

฿32,487

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 10/6

11:35-07:32

2 stops30h 57m

Washington, D.C. Dulles Intl

Wed 12/8

17:01-10:25

2 stops30h 24m

฿32,612

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 6/5

10:50-12:20

2 stops36h 30m

Baltimore/Washington

Wed 13/5

19:40-09:45

2 stops27h 05m

฿32,768

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6/5

10:50-17:05

2 stops41h 15m

Washington, D.C. Dulles Intl

Wed 13/5

17:30-12:10

2 stops31h 40m

฿32,768

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 10/2

16:55-21:17

3 stops40h 22m

Washington, D.C. Dulles Intl

Tue 24/2

22:05-11:25

2 stops49h 20m

฿33,265

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 21/1

16:55-15:32

3 stops34h 37m

Washington, D.C. Reagan-National

Wed 11/2

06:00-00:20

2 stops30h 20m

฿33,297

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 22/1

16:55-16:00

3 stops35h 05m

Washington, D.C. Dulles Intl

Thu 29/1

15:19-11:25

2 stops32h 06m

฿33,421

Flights are sorted by cheapest return flights first.

Deals found on 22/12

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 ฿28,535). Flying from Thailand to Washington, D.C. in November is currently the most expensive (average of ฿33,297). 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 23 December 2025.

It’s optimal to fly from Thailand to Washington, D.C. at midday. 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 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 23 December 2025.
Get a feel of what it's like to fly with Korean Air, เดลต้า, andQatar Airways 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.
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,185 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
เดลต้า
7.9
Good
8,013 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Qatar Airways
7.4
Good
3,690 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
9,111 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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 24h 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 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 ฿28,535). Flying from Thailand to Washington, D.C. in November is currently the most expensive (average of ฿33,297). 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 Reagan-National flights
Chiang Mai to Dulles Intl 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 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿27,416Average฿30,106FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,196Average฿31,924FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿31,041Average฿31,415FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿31,468Average฿35,030FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿32,970Average฿39,184FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿38,059Average฿42,768FlexibilityNo 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 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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