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Washington, D.C.

$392+ Cheap flights from Thailand to Washington, D.C. (WAS)

BKK — WAS
Dec 10 — Dec 171
Thu 12/10
Thu 12/17
1 adult, Economy
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Cheap flight deals from Thailand to Washington, D.C.

Cheapest flights from Thailand to Washington, D.C.

Mon 12/213:20 pm -
1 stop34h 30m
Fri 1/85:50 pm -
1 stop31h 50m
Deal found 11/6$817
Sat 12/193:20 pm -
1 stop35h 25m
Fri 1/155:50 pm -
1 stop31h 50m
Deal found 11/10$883
Mon 11/167:55 pm -
1 stop25h 05m
Mon 11/305:25 pm -
2 stops26h 45m
Deal found 11/9$940
Sun 12/133:20 pm -
1 stop35h 25m
Fri 1/15:50 pm -
1 stop31h 50m
Deal found 11/6$955
Sat 11/77:55 pm -
1 stop25h 05m
Mon 11/2311:55 pm -
1 stop35h 45m
Deal found 11/6$971
Sat 12/198:50 pm -
1 stop24h 10m
Fri 1/152:25 pm -
1 stop28h 10m
Deal found 11/9$974
Mon 11/168:50 pm -
1 stop24h 10m
Mon 11/302:25 pm -
1 stop21h 15m
Deal found 11/9$992
Sat 11/219:10 am -
1 stop35h 50m
Tue 12/12:25 pm -
1 stop28h 00m
Deal found 11/9$1,012
Tue 12/222:40 pm -
1 stop30h 20m
Wed 1/62:25 pm -
1 stop28h 10m
Deal found 11/9$1,031
Mon 11/232:15 am -
2 stops53h 45m
Thu 12/39:30 am -
2 stops37h 15m
Deal found 11/5$1,150
Tue 11/244:55 pm -
3 stops30h 13m
Thu 12/36:05 am -
2 stops30h 15m
Deal found 11/5$1,208
Sat 11/219:10 am -
1 stop35h 50m
Tue 12/19:20 pm -
2 stops33h 40m
Deal found 11/9$1,242

Find flight deals from Thailand to Washington, D.C.

Round-trip from

$735
(Trip.com)

One-way from

$392
(Mytrip)

Popular in

April

Cheapest in

January

Average price

$1,106
From Thailand to Washington, D.C. (WAS)
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One-way flight from Thailand to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 20% potential increase in price ($290 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($63 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
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

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Fri 12/4

9:10 am-9:00 am

1 stop35h 50m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$408

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Tue 3/23

8:55 pm-10:00 am

1 stop24h 05m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$415

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Mon 12/21

7:30 pm-6:30 pm

1 stop35h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$474

Phuket CityWashington, D.C.

HKT Phuket City - IAD Washington, D.C. Dulles Intl

HKTIAD

Phuket City

Fri 1/22

11:55 pm-1:55 pm

1 stop26h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$519

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - DCA Washington, D.C. Reagan-National

BKKDCA

Bangkok Suvarnabhumi

Sun 11/15

3:15 pm-7:01 pm

2 stops39h 46m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$542

Phuket CityWashington, D.C.

HKT Phuket City - IAD Washington, D.C. Dulles Intl

HKTIAD

Phuket City

Wed 3/24

11:55 pm-2:55 pm

1 stop26h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$563

Phuket CityWashington, D.C.

HKT Phuket City - IAD Washington, D.C. Dulles Intl

HKTIAD

Phuket City

Wed 12/23

11:55 pm-1:50 pm

1 stop25h 55m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$563

Chiang MaiWashington, D.C.

CNX Chiang Mai - IAD Washington, D.C. Dulles Intl

CNXIAD

Chiang Mai

Mon 1/18

11:05 pm-6:30 pm

1 stop31h 25m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$570

Phuket CityWashington, D.C.

HKT Phuket City - IAD Washington, D.C. Dulles Intl

HKTIAD

Phuket City

Wed 12/23

8:35 am-9:00 am

3 stops36h 25m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$614

BangkokWashington, D.C.

BKK Bangkok Suvarnabhumi - IAD Washington, D.C. Dulles Intl

BKKIAD

Bangkok Suvarnabhumi

Tue 1/19

1:10 pm-12:19 am

3 stops47h 09m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 pm

Nonstop0h 00m

$667

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

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

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, July is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $1,054). Flying from Thailand to Washington, D.C. in December is currently the most expensive (average of $1,254). 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.

Read through reviews of airlines operating flights from Thailand to Washington, D.C., such as ANA and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.3
Very good
1,340 reviews

Crew

8.7

Entertainment

8.0

Comfort

8.2

Boarding

8.5

Overall

8.3

Food

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

NRT - SFO

The boarding was way behind the est schedule. However it moved pretty fast after it started. It’d be more professional if they informed the passengers of any delay and progress.
ANA
8.3
Very good
1,340 reviews
ANA
8.3
Very good
1,340 reviews

Crew

8.7

Entertainment

8.0

Comfort

8.2

Boarding

8.5

Overall

8.3

Food

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

NRT - SFO

The boarding was way behind the est schedule. However it moved pretty fast after it started. It’d be more professional if they informed the passengers of any delay and progress.
United Airlines
7.3
Good
10,473 reviews
ANA
8.3
Very good
1,340 reviews

Crew

8.7

Entertainment

8.0

Comfort

8.2

Boarding

8.5

Overall

8.3

Food

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

NRT - SFO

The boarding was way behind the est schedule. However it moved pretty fast after it started. It’d be more professional if they informed the passengers of any delay and progress.

Related info for your journey

  • How long is the flight from Thailand to Washington, D.C.?

    Etihad Airways, United Airlines, and Oman Air can get you from Thailand to Washington, D.C. in just under 23h 45m. Your travel time can differ by up to 31h 07m. 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 Air China, which is currently one of the cheapest options available, starting at $434. AIR PREMIA flights start at $484 while deals on Etihad Airways start at $503 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, July is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $1,054). Flying from Thailand to Washington, D.C. in December is currently the most expensive (average of $1,254). 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
Arlington
Lanham
Reston
Herndon
Hyattsville
Springfield
Fairfax
Fredericksburg
Falls Church
Rockville
Towson
Silver Spring
Oxon Hill
Laurel
Hunt Valley
Clinton
Owings Mills
Waldorf

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Thailand to Washington, D.C.

AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapest$768Average$872FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$956Average$1,129FlexibilityNo cancel feeOn-time69%
ANACheapest$1,028Average$1,348FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$1,105Average$1,230FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,112Average$1,119FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,132Average$1,187FlexibilityNo cancel feeOn-time68%

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