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Cheap flights from Thailand to Washington, D.C. from ฿16,784

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
2 Mar — 9 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 31 January 2026.

Wed 6/507:05
BKK
-
IAD
2 stops39h 45m
แอร์แคนาดา
Wed 13/512:39
IAD
-
BKK
2 stops29h 26m
แอร์แคนาดา
Deal found 29/1฿30,362
Sat 7/210:50
BKK
-
IAD
2 stops44h 30m
IndiGo
Sun 15/213:30
IAD
-
BKK
2 stops43h 35m
IndiGo
Deal found 30/1฿31,337
Mon 9/302:15
BKK
-
DCA
2 stops28h 50m
Multiple Airlines
Tue 9/618:59
DCA
-
BKK
2 stops28h 51m
Multiple Airlines
Deal found 29/1฿31,525
Tue 20/1007:45
BKK
-
IAD
2 stops43h 35m
แอร์แคนาดา
Sun 25/1009:45
IAD
-
BKK
2 stops32h 45m
แอร์แคนาดา
Deal found 29/1฿31,525
Mon 4/501:35
BKK
-
DCA
2 stops29h 25m
EVA Air
Tue 28/718:59
DCA
-
BKK
2 stops28h 51m
EVA Air
Deal found 31/1฿32,531
Mon 16/320:40
BKK
-
IAD
2 stops32h 45m
Multiple Airlines
Mon 23/315:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 30/1฿32,782
Mon 16/312:45
BKK
-
DCA
2 stops42h 20m
Multiple Airlines
Mon 23/318:41
DCA
-
BKK
2 stops29h 29m
Multiple Airlines
Deal found 30/1฿32,971
Thu 26/210:10
BKK
-
IAD
2 stops45h 10m
Multiple Airlines
Thu 5/314:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 28/1฿33,222
Sat 7/210:50
BKK
-
IAD
2 stops44h 30m
Multiple Airlines
Sun 15/210:40
IAD
-
BKK
1 stop20h 45m
Multiple Airlines
Deal found 30/1฿33,254
Tue 20/1015:45
BKK
-
DCA
3 stops30h 40m
United Airlines
Sun 25/1008:30
DCA
-
BKK
2 stops33h 40m
United Airlines
Deal found 29/1฿33,285
Tue 10/316:55
BKK
-
IAD
3 stops40h 41m
United Airlines
Tue 9/617:55
IAD
-
BKK
2 stops47h 40m
United Airlines
Deal found 29/1฿33,285
Tue 20/1013:20
BKK
-
BWI
2 stops28h 01m
Multiple Airlines
Sun 25/1019:10
BWI
-
BKK
2 stops27h 40m
Multiple Airlines
Deal found 29/1฿33,348

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 31 January 2026.

Round-trip from

฿30,362

One-way from

฿16,784

Popular in

August

Cheapest in

October

Average price

฿40,074
แอร์แคนาดา
  • แอร์แคนาดา
  • 6/5-13/5
  • 4 total stops
  • 69h 11m total
  • Thailand to Washington, D.C.
Search Deals
6/4
  • 6/4
  • 3 total stops
  • 52h 01m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿21,949 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿28,497 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 31 January 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.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 4/5

01:35-20:00

2 stops29h 25m

Washington, D.C. Reagan-National

Tue 28/7

18:59-10:50

2 stops28h 51m

฿32,531

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 16/3

12:45-20:05

2 stops42h 20m

Washington, D.C. Reagan-National

Mon 23/3

18:41-11:10

2 stops29h 29m

฿32,971

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 16/3

19:30-19:30

1 stop35h 00m

Washington, D.C. Dulles Intl

Mon 23/3

15:35-23:25

1 stop20h 50m

฿33,505

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Tue 5/5

12:25-18:16

2 stops40h 51m

Baltimore/Washington

Tue 28/7

19:35-10:50

2 stops28h 15m

฿33,600

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5/5

12:25-18:20

2 stops40h 55m

Washington, D.C. Dulles Intl

Tue 28/7

17:01-10:50

2 stops30h 49m

฿33,600

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 16/3

16:55-13:07

3 stops31h 12m

Washington, D.C. Reagan-National

Mon 23/3

12:00-11:25

3 stops36h 25m

฿33,662

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 26/2

16:55-11:49

3 stops30h 54m

Washington, D.C. Dulles Intl

Thu 5/3

22:05-11:25

2 stops49h 20m

฿33,851

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 9/4

15:25-15:45

1 stop35h 20m

Washington, D.C. Dulles Intl

Sat 18/4

18:50-00:05

1 stop42h 15m

฿34,480

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 7/4

02:40-17:05

2 stops49h 25m

Washington, D.C. Dulles Intl

Wed 9/9

15:25-09:45

2 stops31h 20m

฿34,511

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Tue 10/3

17:15-17:46

2 stops35h 31m

Baltimore/Washington

Tue 9/6

19:27-10:50

2 stops28h 23m

฿34,637

Flights are sorted by cheapest return flights first.

Deals found on 30/1

Showing 1-10 of 54 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 ฿29,356). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿35,517). 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 31 January 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
1,188 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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
1,188 reviews
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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
8,130 reviews
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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
3,728 reviews
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Crew

8.7

Overall

8.4

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 29h 25m. Airlines will cover a distance of 14157 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 ฿29,356). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿35,517). 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 31 January 2026.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿27,691Average฿30,409FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,499Average฿32,610FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿31,353Average฿31,731FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿31,784Average฿35,381FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿33,301Average฿41,832FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿35,329Average฿38,919FlexibilityNo 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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