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Cheap flights from Thailand to Washington, D.C. from ฿20,027

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
28 Jun — 5 Jul1
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 29 May 2026.

Mon 15/607:00
BKK
-
IAD
2 stops25h 00m
United Airlines
Thu 6/809:10
IAD
-
BKK
2 stops37h 25m
United Airlines
Deal found 25/5฿31,508
Sun 14/607:00
BKK
-
IAD
2 stops27h 19m
United Airlines
Fri 7/822:20
IAD
-
BKK
2 stops48h 15m
United Airlines
Deal found 29/5฿31,573
Mon 28/909:35
BKK
-
DCA
2 stops59h 48m
United Airlines
Wed 30/913:00
DCA
-
BKK
2 stops28h 35m
United Airlines
Deal found 28/5฿31,671
Mon 8/601:30
BKK
-
IAD
1 stop29h 00m
Multiple Airlines
Sun 9/815:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 27/5฿31,703
Mon 8/601:30
BKK
-
IAD
1 stop29h 00m
Multiple Airlines
Mon 10/815:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 28/5฿31,866
Thu 11/619:35
BKK
-
IAD
1 stop34h 55m
Multiple Airlines
Mon 10/815:10
IAD
-
BKK
1 stop34h 00m
Multiple Airlines
Deal found 29/5฿31,899
Mon 28/907:00
BKK
-
IAD
2 stops26h 59m
United Airlines
Wed 30/915:35
IAD
-
BKK
2 stops31h 00m
United Airlines
Deal found 26/5฿31,932
Tue 22/915:45
BKK
-
DCA
3 stops29h 01m
United Airlines
Tue 29/909:30
DCA
-
BKK
2 stops32h 05m
United Airlines
Deal found 27/5฿32,225
Tue 22/915:45
BKK
-
IAD
3 stops30h 41m
United Airlines
Tue 29/912:35
IAD
-
BKK
1 stop29h 00m
United Airlines
Deal found 27/5฿32,225
Mon 8/601:30
BKK
-
IAD
1 stop29h 00m
Multiple Airlines
Thu 6/815:10
IAD
-
BKK
1 stop21h 40m
Multiple Airlines
Deal found 27/5฿32,356
Tue 13/1009:35
BKK
-
IAD
2 stops46h 47m
United Airlines
Thu 29/1013:20
IAD
-
BKK
2 stops35h 05m
United Airlines
Deal found 29/5฿32,453
Tue 22/907:45
BKK
-
DCA
2 stops37h 35m
แอร์แคนาดา
Tue 29/916:20
DCA
-
BKK
2 stops49h 45m
แอร์แคนาดา
Deal found 27/5฿32,616

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 29 May 2026.

Round-trip from

฿31,508

One-way from

฿20,027

Popular in

April

Cheapest in

October

Average price

฿41,651
United Airlines
  • United Airlines
  • 15/6-6/8
  • 4 total stops
  • 62h 25m total
  • Thailand to Washington, D.C.
Search Deals
ซาอุเดียแอร์ไลน์
  • ซาอุเดียแอร์ไลน์
  • 17/6
  • 1 total stop
  • 24h 50m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (฿267,086 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (฿68,994 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 29 May 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 - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 28/9

09:35-09:24

2 stops58h 49m

Washington, D.C. Reagan-National

Wed 30/9

11:30-09:35

3 stops35h 05m

฿31,671

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 28/9

07:00-21:22

2 stops25h 22m

Washington, D.C. Dulles Intl

Wed 30/9

12:35-04:35

1 stop29h 00m

฿31,964

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 22/6

07:00-21:00

2 stops25h 00m

Washington, D.C. Dulles Intl

Thu 27/8

15:40-04:35

2 stops25h 55m

฿31,964

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 1/9

15:45-11:26

3 stops30h 41m

Washington, D.C. Dulles Intl

Fri 2/10

09:45-09:35

2 stops36h 50m

฿32,486

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 15/6

15:45-09:59

3 stops29h 14m

Washington, D.C. Reagan-National

Thu 6/8

11:57-09:35

3 stops34h 38m

฿35,780

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sat 31/10

09:10-20:43

2 stops22h 33m

Washington, D.C. Reagan-National

Wed 4/11

11:30-00:20

3 stops48h 50m

฿36,172

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 8/7

15:45-11:01

3 stops30h 16m

Washington, D.C. Reagan-National

Wed 15/7

11:57-09:35

3 stops34h 38m

฿36,270

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 11/6

02:35-23:44

2 stops32h 09m

Washington, D.C. Reagan-National

Thu 6/8

09:39-01:05

2 stops28h 26m

฿39,172

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 10/6

09:00-19:40

2 stops45h 40m

Baltimore/Washington

Wed 9/9

19:25-17:45

2 stops35h 20m

฿39,172

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 10/6

02:35-23:44

2 stops32h 09m

Washington, D.C. Reagan-National

Sat 8/8

06:05-23:35

2 stops30h 30m

฿39,172

Flights are sorted by cheapest return flights first.

Deals found on 28/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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, April is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿15,395). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿36,824). 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.

How far ahead should I book a flight from Thailand to Washington, D.C.?

To ensure you get the cheapest price possible for a flight from Thailand to Washington, D.C., you should look to book at least 17 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 29 May 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
8,419 reviews
Check prices

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
เดลต้า
7.9
Good
8,419 reviews
เดลต้า
7.9
Good
8,419 reviews
Check prices

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
United Airlines
7.4
Good
9,762 reviews
เดลต้า
7.9
Good
8,419 reviews
Check prices

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

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 28h 48m. Airlines will cover a distance of 13547 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, April is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿15,395). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿36,824). 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 29 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest฿31,530Average฿33,134FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿32,535Average฿32,928FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿32,983Average฿35,571FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿34,457Average฿37,525FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿36,662Average฿40,212FlexibilityNo 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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