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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
Apr 25 — May 21
Sat 4/25
Sat 5/2
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 March 26, 2026.

This United Airlines deal was found by Cheapflights users on 3/22. 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 8/279:35 am
BKK
-
IAD
1 stop41h 15m
United Airlines
Thu 9/106:15 am
IAD
-
BKK
2 stops30h 40m
United Airlines
Deal found 3/22$795
This United Airlines deal was found by Cheapflights users on 3/21. 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.
Fri 6/269:35 am
BKK
-
IAD
2 stops48h 44m
United Airlines
Fri 8/286:30 am
IAD
-
BKK
2 stops35h 05m
United Airlines
Deal found 3/21$797
This United Airlines deal was found by Cheapflights users on 3/22. 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 9/29:35 am
BKK
-
DCA
2 stops46h 08m
United Airlines
Sun 9/68:30 am
DCA
-
BKK
2 stops28h 25m
United Airlines
Deal found 3/22$800
This United Airlines deal was found by Cheapflights users on 3/22. 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 9/247:00 am
BKK
-
IAD
2 stops24h 33m
United Airlines
Mon 9/285:30 pm
IAD
-
BKK
2 stops29h 05m
United Airlines
Deal found 3/22$800
This United Airlines deal was found by Cheapflights users on 3/23. 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 9/83:45 pm
BKK
-
IAD
3 stops30h 41m
United Airlines
Thu 9/178:30 pm
IAD
-
BKK
2 stops26h 05m
United Airlines
Deal found 3/23$808
This AIR PREMIA deal was found by Cheapflights users on 3/23. 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 5/1210:45 pm
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Wed 6/31:20 pm
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 3/23$905
This Vliegwinkel deal was found by Cheapflights users on 3/23. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:35 pm
BKK
-
IAD
1 stop34h 55m
Multiple Airlines
Fri 5/291:20 pm
IAD
-
BKK
1 stop44h 50m
Multiple Airlines
Deal found 3/23$906
This SmartFares deal was found by Cheapflights users on 3/23. 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.
Wed 10/74:45 pm
BKK
-
BWI
2 stops24h 36m
Multiple Airlines
Sun 10/186:11 pm
BWI
-
BKK
2 stops29h 14m
Multiple Airlines
Deal found 3/23$1,006
This United Airlines deal was found by Cheapflights users on 3/23. 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 10/77:00 am
BKK
-
DCA
2 stops25h 53m
United Airlines
Sun 10/187:30 am
DCA
-
BKK
2 stops34h 05m
United Airlines
Deal found 3/23$1,008
This Delta deal was found by Cheapflights users on 3/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:50 am
BKK
-
DCA
2 stops24h 38m
Delta
Thu 8/206:00 am
DCA
-
BKK
2 stops28h 45m
Delta
Deal found 3/23$1,012
This Delta deal was found by Cheapflights users on 3/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:50 am
BKK
-
DCA
2 stops24h 38m
Delta
Wed 8/127:30 pm
DCA
-
BKK
2 stops39h 15m
Delta
Deal found 3/21$1,015
This SmartFares deal was found by Cheapflights users on 3/22. 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.
Wed 8/261:35 am
BKK
-
DCA
2 stops29h 25m
Multiple Airlines
Thu 9/109:30 am
DCA
-
BKK
2 stops38h 20m
Multiple Airlines
Deal found 3/22$1,016

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 March 26, 2026.

Round-trip from

$795
(United Airlines)

One-way from

$572
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$1,399
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. 2% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 26, 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

Fri 6/26

9:35 am-11:19 pm

2 stops48h 44m

Washington, D.C. Dulles Intl

Fri 8/28

6:30 am-4:35 am

2 stops35h 05m

$797

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 9/2

9:35 am-8:43 pm

2 stops46h 08m

Washington, D.C. Reagan-National

Sun 9/6

8:30 am-11:55 pm

2 stops28h 25m

$800

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 6/3

9:50 am-11:28 pm

2 stops24h 38m

Washington, D.C. Reagan-National

Thu 8/20

6:00 am-9:45 pm

2 stops28h 45m

$1,012

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 5/17

9:50 am-11:28 pm

2 stops24h 38m

Washington, D.C. Reagan-National

Wed 8/12

7:30 pm-9:45 pm

2 stops39h 15m

$1,015

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 5/17

3:45 pm-8:15 pm

3 stops63h 30m

Washington, D.C. Reagan-National

Wed 8/12

11:30 am-9:35 am

3 stops35h 05m

$1,033

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 9/15

11:35 am-8:00 pm

2 stops43h 25m

Washington, D.C. Reagan-National

Wed 9/23

6:59 pm-10:25 am

2 stops28h 26m

$1,043

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 5/6

9:40 pm-11:32 pm

2 stops36h 52m

Washington, D.C. Dulles Intl

Wed 5/13

7:00 am-11:35 pm

2 stops29h 35m

$1,108

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 6/14

2:35 am-12:25 am

2 stops32h 50m

Washington, D.C. Dulles Intl

Tue 7/14

1:30 pm-1:05 am

1 stop24h 35m

$1,112

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6/17

9:50 am-12:25 am

2 stops25h 35m

Washington, D.C. Dulles Intl

Thu 7/16

1:30 pm-11:35 pm

1 stop23h 05m

$1,120

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

Fri 4/24

8:50 pm-3:45 pm

2 stops29h 55m

Washington, D.C. Dulles Intl

Mon 5/4

3:10 pm-4:40 am

2 stops26h 30m

$1,195

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

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 March 26, 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 March 26, 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
1,145 reviews

Crew

8.7

Comfort

8.2

Food

7.8

Entertainment

8.0

Boarding

8.6

Overall

8.4

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
1,145 reviews
ANA
8.4
Very good
1,145 reviews

Crew

8.7

Comfort

8.2

Food

7.8

Entertainment

8.0

Boarding

8.6

Overall

8.4

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
8,336 reviews
ANA
8.4
Very good
1,145 reviews

Crew

8.7

Comfort

8.2

Food

7.8

Entertainment

8.0

Boarding

8.6

Overall

8.4

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
3,732 reviews
ANA
8.4
Very good
1,145 reviews

Crew

8.7

Comfort

8.2

Food

7.8

Entertainment

8.0

Boarding

8.6

Overall

8.4

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
9,487 reviews
ANA
8.4
Very good
1,145 reviews

Crew

8.7

Comfort

8.2

Food

7.8

Entertainment

8.0

Boarding

8.6

Overall

8.4

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, AIR PREMIA, and Qatar Airways can get you from Thailand to Washington, D.C. in just under 23h 05m. Your travel time can differ by up to 31h 35m. 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
College Park
Cordova

Browse thousands of different options on Cheapflights for your next trip

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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 March 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,040Average$1,137FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,065Average$1,172FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,078Average$1,295FlexibilityNo cancel feeOn-timeN/A
ANACheapest$1,109Average$1,340FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,142Average$1,177FlexibilityNo cancel feeOn-time68%

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