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Washington, D.C.

$572+ Cheap flights from Thailand to Washington, D.C. (WAS)

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
May 3 — May 101
Sun 5/3
Sun 5/10
1 adult, Economy
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Cheap flight deals from Thailand to Washington, D.C.

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 April 3, 2026.

This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:35 am
BKK
-
IAD
2 stops61h 20m
United Airlines
Mon 7/2010:20 pm
IAD
-
BKK
2 stops48h 15m
United Airlines
Deal found 3/31$795
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/167:00 am
BKK
-
IAD
2 stops59h 26m
United Airlines
Mon 7/2010:20 pm
IAD
-
BKK
2 stops48h 15m
United Airlines
Deal found 3/31$804
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:35 am
BKK
-
IAD
2 stops31h 28m
United Airlines
Mon 11/96:00 am
IAD
-
BKK
2 stops30h 20m
United Airlines
Deal found 3/31$810
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/249:35 am
BKK
-
IAD
2 stops48h 44m
United Airlines
Mon 7/2010:20 pm
IAD
-
BKK
2 stops48h 15m
United Airlines
Deal found 4/3$811
This United Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:35 am
BKK
-
IAD
2 stops31h 25m
United Airlines
Thu 10/156:00 am
IAD
-
BKK
2 stops30h 55m
United Airlines
Deal found 4/2$816
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:35 am
BKK
-
IAD
2 stops45h 58m
United Airlines
Tue 11/312:20 pm
IAD
-
BKK
2 stops35h 05m
United Airlines
Deal found 3/31$824
This AIR PREMIA deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AIR PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:45 pm
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Fri 8/71:20 pm
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 3/30$906
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:05 am
BKK
-
DCA
2 stops38h 15m
Air Canada
Sun 10/184:20 pm
DCA
-
BKK
2 stops49h 45m
Air Canada
Deal found 3/31$946
This Air Canada deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:05 am
BKK
-
IAD
1 stop34h 17m
Air Canada
Mon 8/104:20 pm
IAD
-
BKK
2 stops25h 45m
Air Canada
Deal found 4/3$988
This SmartFares deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:35 am
BKK
-
DCA
2 stops29h 25m
Multiple Airlines
Wed 8/129:59 am
DCA
-
BKK
2 stops38h 21m
Multiple Airlines
Deal found 4/3$1,006
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:00 am
BKK
-
IAD
2 stops25h 09m
United Airlines
Fri 9/255:30 pm
IAD
-
BKK
2 stops29h 05m
United Airlines
Deal found 3/31$1,006
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/109:35 am
BKK
-
IAD
2 stops41h 51m
United Airlines
Wed 8/126:15 am
IAD
-
BKK
2 stops35h 20m
United Airlines
Deal found 4/3$1,009

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 April 3, 2026.

Round-trip from

$795
(United Airlines)

One-way from

$572
(Kiwi.com)

Popular in

April

Cheapest in

October

Average price

$1,643
From Thailand to Washington, D.C. (WAS)
Search Deals
One-way flight from Thailand to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($233 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated April 3, 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 round-trip

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 6/15

9:35 am-11:55 am

2 stops61h 20m

Washington, D.C. Dulles Intl

Mon 7/20

10:20 pm-9:35 am

2 stops48h 15m

$795

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 6/16

7:00 am-7:26 am

2 stops59h 26m

Washington, D.C. Dulles Intl

Mon 7/20

10:20 pm-9:35 am

2 stops48h 15m

$804

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 9/17

3:45 pm-12:42 pm

3 stops31h 57m

Washington, D.C. Reagan-National

Thu 10/15

11:30 am-9:35 am

3 stops35h 05m

$1,060

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 6/21

7:00 am-9:00 pm

2 stops25h 00m

Washington, D.C. Dulles Intl

Mon 7/20

10:20 pm-9:35 am

2 stops48h 15m

$1,115

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 6/12

7:45 pm-6:10 pm

1 stop33h 25m

Washington, D.C. Dulles Intl

Thu 8/13

9:00 pm-6:20 am

1 stop22h 20m

$1,120

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 6/9

7:45 pm-6:10 pm

1 stop33h 25m

Washington, D.C. Dulles Intl

Sat 8/8

9:00 pm-7:15 am

1 stop23h 15m

$1,120

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 5/6

7:45 pm-6:10 pm

2 stops33h 25m

Washington, D.C. Dulles Intl

Wed 5/13

11:00 am-7:50 pm

1 stop21h 50m

$1,164

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 6/11

9:40 pm-4:59 pm

2 stops30h 19m

Washington, D.C. Reagan-National

Sun 8/9

10:05 am-11:35 pm

2 stops26h 30m

$1,202

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 6/11

9:40 pm-4:59 pm

2 stops30h 19m

Washington, D.C. Reagan-National

Sat 8/8

6:59 am-11:35 pm

2 stops29h 36m

$1,202

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6/24

9:40 pm-12:25 am

2 stops37h 45m

Washington, D.C. Dulles Intl

Mon 7/20

8:27 am-1:05 am

2 stops53h 38m

$1,213

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

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 round-trip 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, May is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $956). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of $1,137). 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.

What is the cheapest time of day to fly from TH to WAS?

Find hourly flight availability from Thailand to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 3, 2026.

When flying from Thailand to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 45% versus a flight at noon.

What is the cheapest day to fly from Thailand to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Thailand to Washington, D.C.. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Thailand to Washington, D.C. flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 April 3, 2026.
Read through reviews of airlines operating flights from Thailand to Washington, D.C., such as ANA,Delta, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
1,163 reviews

Entertainment

8.0

Crew

8.7

Food

7.8

Overall

8.4

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
ANA
8.4
Very good
1,163 reviews
ANA
8.4
Very good
1,163 reviews

Entertainment

8.0

Crew

8.7

Food

7.8

Overall

8.4

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
Delta
7.9
Good
8,382 reviews
ANA
8.4
Very good
1,163 reviews

Entertainment

8.0

Crew

8.7

Food

7.8

Overall

8.4

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
Qatar Airways
7.4
Good
3,730 reviews
ANA
8.4
Very good
1,163 reviews

Entertainment

8.0

Crew

8.7

Food

7.8

Overall

8.4

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!
United Airlines
7.4
Good
9,543 reviews
ANA
8.4
Very good
1,163 reviews

Entertainment

8.0

Crew

8.7

Food

7.8

Overall

8.4

Comfort

8.2

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

BKK - NRT

Really enjoyed fly with ANA for our first time. Thank you!

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.?

    United Airlines, Delta, and Qatar Airways can get you from Thailand to Washington, D.C. in just under 28h 55m. Your travel time can differ by up to 3h 31m. The distance from Thailand to Washington, D.C. is about 8792 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Thailand to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with IndiGo, which is currently one of the cheapest options available, starting at $471. Air China flights start at $483 while deals on SAUDIA start at $484 one-way.

  • What are the most popular routes from Thailand to Washington, D.C.?

    The most popular flight routes from Thailand to Washington, D.C. are Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl, Bangkok Suvarnabhumi - Baltimore/Washington and 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 vacation 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, May is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $956). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of $1,137). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
Cordova
Manassas

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.

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 2,558,603 searches. Data last updated April 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,040Average$1,137FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,065Average$1,172FlexibilityNo cancel feeOn-time81%
ANACheapest$1,109Average$1,340FlexibilityNo cancel feeOn-time80%
DeltaCheapest$1,112Average$1,119FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,142Average$1,177FlexibilityNo cancel feeOn-time68%

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