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Washington, D.C.

$618+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
Aug 6 — Aug 131
Thu 8/6
Thu 8/13
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 July 7, 2026.

This CheapOair deal was found by Cheapflights users on 7/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/81:10 pm
BKK
-
IAD
2 stops28h 29m
Multiple Airlines
Wed 7/291:20 pm
IAD
-
BKK
1 stop44h 50m
Multiple Airlines
Deal found 7/7$1,061
This Trip.com deal was found by Cheapflights users on 7/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:45 pm
BKK
-
IAD
1 stop23h 05m
Multiple Airlines
Tue 9/83:10 pm
IAD
-
BKK
1 stop34h 00m
Multiple Airlines
Deal found 7/5$1,062
This Air Canada deal was found by Cheapflights users on 7/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:45 am
BKK
-
DCA
2 stops25h 05m
Air Canada
Mon 9/219:40 am
DCA
-
BKK
2 stops32h 25m
Air Canada
Deal found 7/2$1,063
This Air Canada deal was found by Cheapflights users on 7/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:45 am
BKK
-
IAD
2 stops23h 40m
Air Canada
Mon 9/218:29 am
IAD
-
BKK
1 stop33h 36m
Air Canada
Deal found 7/2$1,065
This Booking.com deal was found by Cheapflights users on 7/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:45 pm
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Fri 8/281:20 pm
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Deal found 7/5$1,081
This Air Canada deal was found by Cheapflights users on 7/3. 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.
Tue 7/217:45 am
BKK
-
IAD
2 stops38h 27m
Air Canada
Tue 7/2810:14 pm
IAD
-
BKK
2 stops43h 51m
Air Canada
Deal found 7/3$1,086
This CheapOair deal was found by Cheapflights users on 7/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:45 pm
BKK
-
IAD
1 stop23h 05m
Multiple Airlines
Mon 9/213:10 pm
IAD
-
BKK
1 stop28h 35m
Multiple Airlines
Deal found 7/2$1,088
This Air Canada deal was found by Cheapflights users on 7/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:00 am
BKK
-
IAD
2 stops34h 22m
Air Canada
Sat 7/254:20 pm
IAD
-
BKK
2 stops25h 45m
Air Canada
Deal found 7/2$1,101
This Gotogate deal was found by Cheapflights users on 7/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:55 am
BKK
-
IAD
2 stops32h 45m
Multiple Airlines
Fri 8/281:20 pm
IAD
-
BKK
1 stop44h 50m
Multiple Airlines
Deal found 7/5$1,102
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Sun 7/127:00 am
BKK
-
DCA
2 stops26h 30m
United Airlines
Sun 7/196:10 pm
DCA
-
BKK
3 stops28h 25m
United Airlines
Deal found 7/6$1,112
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Tue 7/77:00 am
BKK
-
DCA
2 stops25h 06m
United Airlines
Mon 10/510:30 am
DCA
-
BKK
2 stops31h 05m
United Airlines
Deal found 7/2$1,113
This United Airlines deal was found by Cheapflights users on 7/5. 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 8/277:00 am
BKK
-
DCA
2 stops39h 54m
United Airlines
Fri 8/283:30 pm
DCA
-
BKK
2 stops26h 05m
United Airlines
Deal found 7/5$1,114

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 July 7, 2026.

Round-trip from

$1,062
(Trip.com)

One-way from

$618
(SAUDIA)

Popular in

April

Cheapest in

October

Average price

$1,085
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 ($234 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($64 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 7, 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 - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 9/17

7:45 am-9:50 pm

2 stops25h 05m

Washington, D.C. Reagan-National

Mon 9/21

9:40 am-5:05 am

2 stops32h 25m

$1,063

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 8/27

9:35 am-1:55 pm

2 stops39h 20m

Washington, D.C. Dulles Intl

Fri 8/28

5:42 pm-9:35 am

2 stops28h 53m

$1,105

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 9/29

9:35 am-10:30 pm

2 stops47h 55m

Washington, D.C. Reagan-National

Sat 10/3

7:10 pm-4:35 am

2 stops46h 25m

$1,115

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 8/18

3:45 pm-3:42 pm

3 stops34h 57m

Washington, D.C. Reagan-National

Tue 8/25

1:04 pm-4:35 am

3 stops52h 31m

$1,128

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 10/11

3:45 pm-11:55 am

3 stops31h 10m

Washington, D.C. Dulles Intl

Sun 10/18

12:58 pm-9:35 am

2 stops33h 37m

$1,128

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 10/18

3:45 pm-11:55 am

3 stops31h 10m

Washington, D.C. Dulles Intl

Thu 10/29

1:20 pm-11:30 am

2 stops35h 10m

$1,146

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 7/30

9:35 am-3:50 pm

1 stop41h 15m

Washington, D.C. Dulles Intl

Thu 8/6

3:39 pm-9:35 am

3 stops30h 56m

$1,151

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 8/30

2:30 am-3:40 pm

1 stop24h 10m

Washington, D.C. Dulles Intl

Wed 9/30

9:00 pm-7:35 am

1 stop23h 35m

$1,164

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 9/3

4:45 pm-8:00 pm

2 stops38h 15m

Washington, D.C. Reagan-National

Wed 9/16

9:30 am-11:20 am

2 stops38h 50m

$1,180

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Thu 9/3

1:10 pm-6:30 am

2 stops28h 20m

Baltimore/Washington

Wed 9/16

7:15 pm-12:00 pm

2 stops29h 45m

$1,203

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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, April is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $472). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of $1,129). 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.

How far ahead should I book a flight from Thailand to Washington, D.C.?

Booking 90 days in advance of your planned departure date is, on average, the best time to get cheap flights from Thailand to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 July 7, 2026.
Read through reviews of airlines operating flights from Thailand to Washington, D.C., such as Korean Air,United Airlines, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,221 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

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
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

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!!
United Airlines
7.4
Good
9,940 reviews
Korean Air
8.4
Very good
1,221 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

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
7.3
Good
3,743 reviews
Korean Air
8.4
Very good
1,221 reviews

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

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.?

    Air Canada, United Airlines, and STARLUX Airlines can get you from Thailand to Washington, D.C. in just under 25h 05m. Your travel time can differ by up to 14h 15m. The distance from Thailand to Washington, D.C. is about 8797 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 Air China, which is currently one of the cheapest options available, starting at $423. AIR PREMIA flights start at $488 while deals on Turkish Airlines start at $539 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 Don Mueang Intl - Washington, D.C. Dulles Intl 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, April is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $472). Flying from Thailand to Washington, D.C. in January is currently the most expensive (average of $1,129). 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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Falls Church
Fredericksburg
Hanover
Laurel
Silver Spring
Clinton
Hunt Valley
Cordova
Woodbridge

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 July 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$958Average$1,101FlexibilityNo cancel feeOn-time69%
ANACheapest$1,028Average$1,340FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$1,045Average$1,221FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,112Average$1,119FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,142Average$1,179FlexibilityNo cancel feeOn-time68%

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