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Cheap flights from Thailand to Washington, D.C. from ฿14,919

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
14 Mar — 21 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 12 February 2026.

Wed 11/210:10
BKK
-
IAD
2 stops45h 10m
IndiGo
Mon 23/221:15
IAD
-
BKK
2 stops35h 50m
IndiGo
Deal found 10/2฿27,662
Mon 9/319:30
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Mon 4/515:10
IAD
-
BKK
1 stop28h 05m
Multiple Airlines
Deal found 12/2฿28,097
Thu 5/319:30
BKK
-
IAD
1 stop35h 00m
Multiple Airlines
Mon 4/515:10
IAD
-
BKK
1 stop28h 05m
Multiple Airlines
Deal found 12/2฿28,843
Mon 27/413:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Mon 3/813:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 9/2฿28,968
Sun 26/413:40
DMK
-
IAD
2 stops55h 05m
Multiple Airlines
Mon 3/813:20
IAD
-
DMK
1 stop39h 30m
Multiple Airlines
Deal found 9/2฿28,999
Tue 10/317:15
BKK
-
DCA
2 stops35h 44m
Multiple Airlines
Tue 12/509:59
DCA
-
BKK
2 stops37h 26m
Multiple Airlines
Deal found 8/2฿30,646
Sun 19/422:50
DMK
-
IAD
2 stops45h 55m
Multiple Airlines
Wed 16/913:20
IAD
-
DMK
1 stop39h 10m
Multiple Airlines
Deal found 8/2฿31,050
Wed 11/312:45
BKK
-
DCA
2 stops42h 20m
Multiple Airlines
Wed 13/509:59
DCA
-
BKK
2 stops38h 11m
Multiple Airlines
Deal found 8/2฿31,143
Tue 25/816:45
BKK
-
DCA
2 stops38h 15m
Multiple Airlines
Mon 7/909:59
DCA
-
BKK
2 stops38h 21m
Multiple Airlines
Deal found 9/2฿31,237
Tue 26/501:35
BKK
-
DCA
2 stops29h 31m
Multiple Airlines
Wed 29/718:59
DCA
-
BKK
2 stops29h 21m
Multiple Airlines
Deal found 9/2฿31,392
Fri 24/410:50
BKK
-
IAD
2 stops33h 55m
Multiple Airlines
Mon 3/813:20
IAD
-
BKK
1 stop39h 40m
Multiple Airlines
Deal found 9/2฿31,423
Sun 10/522:45
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Sun 13/913:20
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 11/2฿31,454

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 12 February 2026.

Round-trip from

฿28,097

One-way from

฿14,919

Popular in

August

Cheapest in

October

Average price

฿33,008
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 9/3-4/5
  • 2 total stops
  • 63h 05m total
  • Thailand to Washington, D.C.
Search Deals
Air China
  • Air China
  • 16/3
  • 1 total stop
  • 31h 25m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (฿24,494 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿31,266 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 12 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

Mon 27/4

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Mon 3/8

13:20-15:50

1 stop39h 30m

฿28,968

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 26/4

13:40-09:45

2 stops55h 05m

Washington, D.C. Dulles Intl

Mon 3/8

13:20-15:50

1 stop39h 30m

฿28,999

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 5/3

17:55-18:30

2 stops36h 35m

Washington, D.C. Dulles Intl

Mon 4/5

15:10-11:50

1 stop33h 40m

฿29,154

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 9/3

17:55-19:30

2 stops36h 35m

Washington, D.C. Dulles Intl

Mon 4/5

15:10-18:10

1 stop40h 00m

฿29,185

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Sun 19/4

22:50-09:45

2 stops45h 55m

Washington, D.C. Dulles Intl

Wed 16/9

13:20-15:30

1 stop39h 10m

฿31,050

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 26/5

01:35-20:06

2 stops29h 31m

Washington, D.C. Reagan-National

Wed 29/7

18:59-11:20

2 stops29h 21m

฿31,392

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 10/5

22:45-10:50

1 stop23h 05m

Washington, D.C. Dulles Intl

Sun 13/9

13:20-21:10

1 stop44h 50m

฿31,454

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Mon 8/6

16:45-06:28

2 stops24h 43m

Baltimore/Washington

Wed 15/7

19:35-11:20

2 stops28h 45m

฿31,485

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 4/3

02:15-17:59

2 stops27h 44m

Washington, D.C. Reagan-National

Mon 4/5

18:59-10:55

2 stops28h 56m

฿31,610

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 6/7

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Thu 30/7

06:30-23:55

2 stops30h 25m

฿32,542

Flights are sorted by cheapest return flights first.

Deals found on 12/2

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 ฿29,030). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿35,339). 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 12 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
1,191 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

Overall

8.4

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
1,191 reviews
Korean Air
8.4
Very Good
1,191 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

Overall

8.4

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
8,183 reviews
Korean Air
8.4
Very Good
1,191 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

Overall

8.4

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
3,731 reviews
Korean Air
8.4
Very Good
1,191 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

Overall

8.4

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 Don Mueang Intl - Washington, D.C. Dulles Intl.

  • 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 ฿29,030). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿35,339). 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 12 February 2026.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿27,383Average฿30,070FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,160Average฿32,269FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿31,004Average฿31,378FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿31,430Average฿34,988FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿32,931Average฿41,367FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿34,936Average฿38,486FlexibilityNo 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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