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Cheap flights from Thailand to Washington, D.C. from ฿17,014

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
23 Feb — 2 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 24 January 2026.

Wed 6/507:05
BKK
-
IAD
2 stops35h 45m
แอร์แคนาดา
Wed 13/512:39
IAD
-
BKK
2 stops29h 26m
แอร์แคนาดา
Deal found 24/1฿29,790
Sun 25/110:50
BKK
-
IAD
2 stops44h 30m
IndiGo
Sun 8/221:15
IAD
-
BKK
2 stops35h 50m
IndiGo
Deal found 22/1฿29,883
Tue 28/407:00
BKK
-
DCA
2 stops25h 53m
แอร์แคนาดา
Tue 5/516:20
DCA
-
BKK
2 stops49h 45m
แอร์แคนาดา
Deal found 24/1฿30,193
Tue 28/407:45
BKK
-
IAD
2 stops23h 52m
แอร์แคนาดา
Tue 5/509:55
IAD
-
BKK
2 stops26h 15m
แอร์แคนาดา
Deal found 24/1฿30,471
Sun 25/115:30
BKK
-
IAD
2 stops39h 50m
Multiple Airlines
Sun 8/214:35
IAD
-
BKK
1 stop39h 25m
Multiple Airlines
Deal found 22/1฿30,718
Mon 26/108:00
BKK
-
IAD
2 stops24h 54m
Multiple Airlines
Mon 2/209:00
IAD
-
BKK
2 stops33h 30m
Multiple Airlines
Deal found 22/1฿30,904
Mon 2/302:15
BKK
-
DCA
2 stops29h 50m
Multiple Airlines
Mon 11/509:59
DCA
-
BKK
2 stops37h 56m
Multiple Airlines
Deal found 22/1฿31,152
Tue 28/407:00
BKK
-
IAD
2 stops24h 37m
Multiple Airlines
Tue 5/515:10
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 24/1฿31,152
Mon 2/302:15
BKK
-
DCA
2 stops29h 50m
EVA Air
Thu 7/509:59
DCA
-
BKK
2 stops37h 26m
EVA Air
Deal found 21/1฿31,399
Tue 10/302:15
BKK
-
DCA
2 stops28h 50m
EVA Air
Mon 11/509:59
DCA
-
BKK
2 stops37h 56m
EVA Air
Deal found 23/1฿31,461
Thu 26/214:40
BKK
-
IAD
2 stops27h 00m
Multiple Airlines
Mon 9/318:27
IAD
-
BKK
2 stops29h 43m
Multiple Airlines
Deal found 22/1฿31,708
Sun 15/223:55
BKK
-
IAD
2 stops41h 45m
Multiple Airlines
Wed 11/315:35
IAD
-
BKK
1 stop20h 50m
Multiple Airlines
Deal found 21/1฿31,894

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 24 January 2026.

Round-trip from

฿29,790

One-way from

฿17,014

Popular in

August

Cheapest in

October

Average price

฿39,442
แอร์แคนาดา
  • แอร์แคนาดา
  • 6/5-13/5
  • 4 total stops
  • 65h 11m total
  • Thailand to Washington, D.C.
Search Deals
4/2
  • 4/2
  • 3 total stops
  • 34h 58m total
  • Thailand to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿22,124 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿27,682 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 24 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

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 21/4

11:35-20:00

2 stops43h 25m

Washington, D.C. Reagan-National

Sun 24/5

09:59-10:25

2 stops37h 26m

฿32,049

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 28/4

07:00-22:28

2 stops26h 28m

Washington, D.C. Reagan-National

Tue 5/5

13:00-09:35

3 stops33h 35m

฿33,070

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 28/4

07:00-22:44

2 stops26h 44m

Washington, D.C. Dulles Intl

Tue 5/5

13:10-09:35

3 stops33h 25m

฿33,070

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 19/4

13:55-15:40

1 stop36h 45m

Washington, D.C. Dulles Intl

Sun 20/9

15:30-04:35

2 stops26h 05m

฿33,503

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

฿33,781

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Mon 9/3

14:40-17:46

2 stops38h 06m

Baltimore/Washington

Mon 16/3

18:46-11:10

2 stops29h 24m

฿34,338

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Tue 21/4

11:20-05:40

2 stops29h 20m

Washington, D.C. Dulles Intl

Sun 24/5

17:33-10:20

2 stops29h 47m

฿34,957

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 6/5

09:00-19:40

2 stops45h 40m

Baltimore/Washington

Wed 13/5

21:30-17:45

2 stops57h 15m

฿34,987

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 11/3

09:10-16:38

2 stops42h 28m

Washington, D.C. Dulles Intl

Mon 11/5

22:30-23:55

2 stops38h 25m

฿35,080

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 19/4

12:25-17:41

2 stops40h 16m

Washington, D.C. Reagan-National

Sun 20/9

09:59-10:50

2 stops37h 51m

฿35,204

Flights are sorted by cheapest return flights first.

Deals found on 23/1

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 ฿28,893). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿34,957). 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 24 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

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

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

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

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
8,113 reviews
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

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
3,730 reviews
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

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 26h 28m. 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 ฿28,893). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of ฿34,957). 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 24 January 2026.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿27,254Average฿29,929FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿30,018Average฿32,077FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
เอทิฮัดแอร์เวย์Cheapest฿30,858Average฿31,230FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights
Korean AirCheapest฿31,282Average฿34,093FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
ANACheapest฿32,776Average฿38,953FlexibilityNo cancel feeOn-time80%
Search ANA flights
Qatar AirwaysCheapest฿34,772Average฿41,738FlexibilityNo 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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