Find flights
When to book
Airlines
FAQs

Cheap flights from Thailand to Washington, D.C. from ฿19,696

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
19 May — 26 May1
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 19 April 2026.

Sun 17/519:10
BKK
-
BWI
2 stops35h 30m
Multiple Airlines
Sun 31/521:35
BWI
-
BKK
2 stops46h 20m
Multiple Airlines
Deal found 18/4฿34,643
Thu 30/402:30
BKK
-
IAD
1 stop26h 40m
Qatar Airways
Sun 10/521:00
IAD
-
BKK
1 stop22h 50m
Qatar Airways
Deal found 15/4฿34,961
Wed 10/619:45
BKK
-
IAD
1 stop33h 25m
Multiple Airlines
Wed 9/921:00
IAD
-
BKK
1 stop29h 25m
Multiple Airlines
Deal found 16/4฿34,993
Thu 1/1009:35
BKK
-
DCA
2 stops47h 18m
United Airlines
Mon 12/1018:00
DCA
-
BKK
2 stops47h 35m
United Airlines
Deal found 17/4฿35,025
Thu 1/1009:35
BKK
-
IAD
2 stops46h 47m
United Airlines
Mon 12/1022:10
IAD
-
BKK
2 stops43h 25m
United Airlines
Deal found 17/4฿35,025
Mon 25/509:50
BKK
-
DCA
2 stops23h 54m
เดลต้า
Wed 16/910:00
DCA
-
BKK
2 stops28h 05m
เดลต้า
Deal found 14/4฿35,121
Mon 25/509:50
BKK
-
IAD
2 stops26h 01m
เดลต้า
Wed 16/906:00
IAD
-
BKK
2 stops28h 45m
เดลต้า
Deal found 14/4฿35,121
Mon 1/609:50
BKK
-
IAD
2 stops25h 23m
เดลต้า
Fri 28/807:25
IAD
-
BKK
2 stops27h 20m
เดลต้า
Deal found 16/4฿35,280
Thu 7/521:40
BKK
-
IAD
2 stops37h 35m
เดลต้า
Thu 5/1107:05
IAD
-
BKK
2 stops29h 40m
เดลต้า
Deal found 15/4฿35,312
Fri 25/1223:15
BKK
-
IAD
1 stop22h 35m
Korean Air
Fri 8/111:50
IAD
-
BKK
1 stop23h 30m
Korean Air
Deal found 15/4฿35,344
Thu 7/519:40
BKK
-
IAD
1 stop33h 30m
Qatar Airways
Thu 5/1120:05
IAD
-
BKK
1 stop35h 20m
Qatar Airways
Deal found 15/4฿35,376
Thu 24/909:35
BKK
-
IAD
1 stop35h 30m
United Airlines
Mon 28/913:05
IAD
-
BKK
2 stops28h 30m
United Airlines
Deal found 18/4฿35,471

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 19 April 2026.

Round-trip from

฿34,643

One-way from

฿19,696

Popular in

April

Cheapest in

October

Average price

฿59,023
17/5-31/5
  • 17/5-31/5
  • 4 total stops
  • 81h 50m total
  • Thailand to Washington, D.C.
Search Deals
1/6
  • 1/6
  • 3 total stops
  • 57h 23m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (฿249,587 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿65,033 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 19 April 2026.
Use the filters below to find and compare flights from Thailand to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 1/6

09:50-00:13

2 stops25h 23m

Washington, D.C. Dulles Intl

Fri 28/8

07:25-21:45

2 stops27h 20m

฿35,121

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 24/9

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Mon 28/9

13:05-04:35

2 stops28h 30m

฿35,471

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Thu 1/10

13:20-06:30

2 stops28h 10m

Baltimore/Washington

Mon 12/10

18:11-12:10

2 stops30h 59m

฿36,204

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 26/6

09:55-15:40

1 stop40h 45m

Washington, D.C. Dulles Intl

Wed 9/9

21:00-12:55

1 stop28h 55m

฿36,204

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5/5

02:30-18:10

1 stop26h 40m

Washington, D.C. Dulles Intl

Wed 13/5

21:00-13:45

1 stop29h 45m

฿36,587

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 9/6

01:35-20:00

2 stops29h 25m

Washington, D.C. Reagan-National

Wed 9/9

09:30-11:20

2 stops38h 50m

฿36,619

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5/5

19:40-18:20

1 stop33h 40m

Washington, D.C. Dulles Intl

Fri 28/8

21:00-19:25

1 stop35h 25m

฿36,874

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 24/9

09:55-08:45

1 stop33h 50m

Washington, D.C. Dulles Intl

Mon 28/9

21:00-19:05

1 stop35h 05m

฿37,352

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 30/4

19:00-18:10

1 stop34h 10m

Washington, D.C. Dulles Intl

Wed 6/5

21:00-14:00

2 stops30h 00m

฿37,670

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 28/7

07:00-00:55

2 stops28h 55m

Washington, D.C. Dulles Intl

Wed 26/8

08:29-23:55

2 stops28h 26m

฿37,862

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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, April is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿15,043). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿35,981). 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 19 April 2026.
Get a feel of what it's like to fly with เดลต้า and United Airlines 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.
เดลต้า
7.9
Good
8,422 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
เดลต้า
7.9
Good
8,422 reviews
เดลต้า
7.9
Good
8,422 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,604 reviews
เดลต้า
7.9
Good
8,422 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 25h 23m. 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, April is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿15,043). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿35,981). 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 5 airlines flying from Thailand to Washington, D.C.

Discover the top 5 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 19 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest฿30,809Average฿32,376FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿31,791Average฿32,174FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿32,228Average฿34,757FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿33,766Average฿38,718FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿35,823Average฿39,463FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.