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Cheap flights from Thailand to Washington, D.C. from ฿14,459

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 19/3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
24 Mar — 31 Mar1
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 22 February 2026.

Thu 5/319:30
BKK
-
IAD
1 stop35h 00m
Air China
Fri 6/322:00
IAD
-
BKK
1 stop38h 10m
Air China
Deal found 19/2฿24,419
Thu 3/913:25
BKK
-
DCA
2 stops37h 57m
Philippine Airlines
Fri 11/917:30
DCA
-
BKK
2 stops38h 00m
Philippine Airlines
Deal found 19/2฿25,257
Mon 23/319:30
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Mon 30/315:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 21/2฿28,887
Thu 26/317:55
BKK
-
IAD
2 stops36h 35m
Multiple Airlines
Sun 29/315:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 19/2฿29,135
Thu 5/319:30
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Wed 18/311:40
IAD
-
BKK
1 stop20h 45m
Multiple Airlines
Deal found 21/2฿29,290
Thu 5/301:30
BKK
-
IAD
1 stop29h 00m
Multiple Airlines
Mon 9/315:35
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 19/2฿29,415
Mon 9/319:30
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Tue 17/315:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 20/2฿29,477
Wed 6/513:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Sun 6/913:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 18/2฿29,663
Mon 4/513:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Sun 6/913:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 18/2฿29,694
Wed 6/513:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Mon 7/913:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 18/2฿29,725
Tue 1/913:25
BKK
-
BWI
2 stops27h 56m
Multiple Airlines
Wed 9/907:51
BWI
-
BKK
2 stops41h 19m
Multiple Airlines
Deal found 19/2฿29,756
Mon 4/513:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Mon 7/913:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 18/2฿29,756

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 22 February 2026.

Round-trip from

฿24,419

One-way from

฿14,459

Popular in

August

Cheapest in

October

Average price

฿35,217
Air China
  • Air China
  • 5/3-6/3
  • 2 total stops
  • 73h 10m total
  • Thailand to Washington, D.C.
Search Deals
Air China
  • Air China
  • 19/3
  • 1 total stop
  • 31h 25m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿16,967 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿30,412 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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 22 February 2026.
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 6/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Sun 6/9

13:20-15:50

1 stop39h 30m

฿29,663

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Mon 4/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Sun 6/9

13:20-15:50

1 stop39h 30m

฿29,694

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 6/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Mon 7/9

13:20-15:50

1 stop39h 30m

฿29,725

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 6/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Wed 9/9

13:20-15:50

1 stop39h 30m

฿29,725

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Mon 4/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Mon 7/9

13:20-15:50

1 stop39h 30m

฿29,756

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Mon 4/5

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Wed 9/9

13:20-15:50

1 stop39h 30m

฿29,756

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Tue 17/3

23:00-10:05

2 stops46h 05m

Washington, D.C. Dulles Intl

Wed 16/9

13:20-15:50

1 stop39h 30m

฿30,718

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 10/3

02:05-23:39

2 stops32h 34m

Washington, D.C. Reagan-National

Mon 16/3

06:05-00:45

2 stops31h 40m

฿30,873

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Tue 17/3

23:00-10:05

2 stops46h 05m

Washington, D.C. Dulles Intl

Sun 13/9

13:20-15:50

1 stop39h 30m

฿31,245

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Wed 1/4

23:40-15:40

2 stops27h 00m

Washington, D.C. Dulles Intl

Mon 31/8

13:20-15:50

1 stop39h 30m

฿31,649

Flights are sorted by cheapest return flights first.

Deals found on 19/2

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, June is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿28,980). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿35,279). 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 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 22 February 2026.
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
1,195 reviews
Check prices

Overall

8.4

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

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
1,195 reviews
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Overall

8.4

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

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
8,240 reviews
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Overall

8.4

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

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
3,739 reviews
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Overall

8.4

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

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 23h 05m. 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 - Washington, D.C. Reagan-National or Bangkok Suvarnabhumi - Baltimore/Washington.

  • 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, June is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿28,980). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿35,279). 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 22 February 2026.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿27,336Average฿30,019FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,108Average฿32,214FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿30,951Average฿31,324FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿31,376Average฿34,928FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿32,874Average฿41,593FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿34,876Average฿38,420FlexibilityNo 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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