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

Departing from Thailand to Washington, D.C. will take you 23h 45m. Airlines will cover a distance of 14149 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 Don Mueang Intl - Washington, D.C. Dulles Intl or Bangkok Suvarnabhumi - Baltimore/Washington.

What are the most popular airlines that fly from Thailand to Washington, D.C.?

Before booking your flight from Thailand to Washington, D.C., check out the most popular airlines for this route: United Airlines, Korean Air or Qatar Airways.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Thailand to Washington, D.C. as you normally would.

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.

฿18,080+ Cheap Flights from Thailand to Washington, D.C.

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

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 11 August 2026.

Sun 20/915:25 -

1 stop35h 20m

Sun 27/918:50 -

1 stop31h 55m

Deal found 6/8฿26,922

Sun 4/1015:25 -

1 stop35h 20m

Sun 18/1018:50 -

1 stop31h 55m

Deal found 8/8฿27,120

Sun 6/915:25 -

1 stop35h 20m

Sun 13/918:50 -

1 stop31h 55m

Deal found 7/8฿27,549

Sun 13/915:25 -

1 stop35h 20m

Sun 20/918:50 -

1 stop31h 55m

Deal found 10/8฿27,615

Tue 8/915:25 -

1 stop35h 20m

Sun 13/918:50 -

1 stop31h 55m

Deal found 6/8฿28,704

Sat 19/1215:20 -

1 stop35h 25m

Fri 15/117:50 -

1 stop31h 50m

Deal found 7/8฿31,244

Fri 11/1215:20 -

1 stop34h 30m

Fri 1/117:50 -

1 stop31h 50m

Deal found 7/8฿31,409

Tue 1/1215:20 -

1 stop35h 25m

Sun 6/1217:50 -

1 stop31h 50m

Deal found 6/8฿31,970

Thu 5/1109:10 -

2 stops43h 35m

Mon 9/1108:30 -

3 stops39h 00m

Deal found 6/8฿34,247

Sat 5/915:45 -

3 stops29h 14m

Sat 12/907:48 -

2 stops27h 27m

Deal found 8/8฿34,742

Thu 1/1011:35 -

3 stops35h 25m

Mon 5/1009:27 -

3 stops37h 58m

Deal found 6/8฿36,655

Thu 24/920:15 -

2 stops37h 55m

Thu 1/1019:35 -

2 stops51h 10m

Deal found 10/8฿36,820

Best flights from Thailand to Washington, D.C.
Discover carefully curated flight deals from Thailand to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 August 2026.

Fri 5/201:15 -

1 stop24h 35m

Sun 14/217:50 -

1 stop31h 50m

Deal found 9/8฿31,640

Wed 23/921:00 -

1 stop23h 45m

Sun 27/915:10 -

1 stop40h 00m

Deal found 10/8฿34,082

Sat 5/909:35 -

1 stop35h 30m

Sat 12/917:15 -

3 stops29h 20m

Deal found 8/8฿34,115

Mon 14/902:30 -

1 stop24h 10m

Thu 22/1021:00 -

1 stop29h 25m

Deal found 8/8฿35,929

Sun 6/920:00 -

2 stops55h 45m

Sun 13/922:05 -

3 stops28h 40m

Deal found 9/8฿39,889

Sat 19/1214:00 -

2 stops37h 40m

Fri 15/122:15 -

2 stops29h 15m

Deal found 10/8฿40,746

Wed 23/914:35 -

2 stops36h 05m

Sun 27/921:00 -

2 stops35h 10m

Deal found 10/8฿43,716

Tue 22/1200:55 -

2 stops22h 58m

Sat 2/106:00 -

2 stops29h 20m

Deal found 6/8฿45,365

Fri 2/1011:35 -

1 stop21h 25m

Wed 7/1001:15 -

1 stop22h 10m

Deal found 6/8฿46,124

Thu 10/923:30 -

1 stop22h 35m

Sun 27/1211:50 -

1 stop23h 30m

Deal found 7/8฿47,411

Thu 3/913:30 -

1 stop30h 10m

Wed 16/910:55 -

1 stop22h 50m

Deal found 10/8฿48,698

Tue 22/1213:45 -

2 stops28h 00m

Sat 16/118:11 -

2 stops34h 19m

Deal found 9/8฿62,423

Fri 5/207:10 -

2 stops26h 43m

Sun 7/213:00 -

2 stops28h 10m

Deal found 10/8฿34,247

Thu 1/1011:35 -

3 stops35h 25m

Mon 5/1009:27 -

3 stops37h 58m

Deal found 6/8฿36,655

Thu 5/1109:10 -

3 stops42h 59m

Mon 9/1108:30 -

3 stops39h 00m

Deal found 8/8฿34,313

Mon 19/1017:50 -

2 stops46h 30m

Sun 25/1007:02 -

2 stops42h 33m

Deal found 9/8฿37,150

Sun 6/907:00 -

2 stops26h 19m

Sun 13/915:15 -

2 stops26h 20m

Deal found 7/8฿34,313

Sun 4/1011:20 -

2 stops29h 00m

Sat 10/1007:02 -

2 stops40h 18m

Deal found 7/8฿85,716

Sat 6/207:10 -

2 stops26h 43m

Sun 14/214:00 -

3 stops33h 30m

Deal found 9/8฿34,379

Thu 1/1011:35 -

2 stops43h 25m

Mon 5/1018:57 -

2 stops28h 28m

Deal found 6/8฿38,206

Thu 3/913:30 -

1 stop30h 10m

Sun 20/910:55 -

1 stop37h 15m

Deal found 8/8฿48,995

Sat 5/915:45 -

3 stops29h 14m

Sat 12/907:48 -

2 stops27h 27m

Deal found 8/8฿34,742

Fri 2/1011:35 -

2 stops43h 25m

Thu 8/1018:57 -

2 stops28h 28m

Deal found 6/8฿39,823

Wed 16/912:10 -

1 stop31h 30m

Sun 20/910:55 -

1 stop22h 50m

Deal found 8/8฿49,028

Wed 23/921:45 -

2 stops49h 00m

Sun 27/913:15 -

1 stop44h 30m

Deal found 8/8฿54,702

Sat 3/1015:45 -

3 stops31h 10m

Thu 15/1006:35 -

2 stops30h 20m

Deal found 8/8฿34,742

Sat 3/1016:45 -

2 stops35h 27m

Thu 15/1018:15 -

2 stops29h 10m

Deal found 8/8฿40,120

Thu 10/909:50 -

2 stops24h 34m

Fri 25/1218:10 -

2 stops42h 35m

Deal found 7/8฿59,519

Sat 19/1223:00 -

1 stop45h 10m

Fri 15/110:30 -

1 stop21h 40m

Deal found 10/8฿50,611

Tue 22/921:45 -

2 stops26h 02m

Sat 26/916:00 -

2 stops41h 45m

Deal found 10/8฿56,385

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

Round-trip from	฿26,922
One-way from	฿18,080
Popular in	August
Cheapest in	October
Average price	฿69,615

ซาอุเดียแอร์ไลน์
20/9-27/9
2 total stops
67h 15m total
Thailand to Washington, D.C.

Search Deals

13/9
3 total stops
50h 45m total
Thailand to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (฿250,953 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (฿86,236 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

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 return flight

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Fri 5/2

01:15-13:50

1 stop24h 35m

Washington, D.C. Dulles Intl

Sun 14/2

17:50-13:40

1 stop31h 50m

฿31,640

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Wed 23/9

21:00-09:45

1 stop23h 45m

Washington, D.C. Dulles Intl

Sun 27/9

15:10-18:10

1 stop40h 00m

฿34,082

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 5/9

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Sat 12/9

17:15-09:35

3 stops29h 20m

฿34,115

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Fri 5/2

07:10-21:53

2 stops26h 43m

Washington, D.C. Reagan-National

Sun 7/2

13:00-05:10

2 stops28h 10m

฿34,247

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Thu 5/11

09:10-16:09

3 stops42h 59m

Washington, D.C. Reagan-National

Mon 9/11

08:30-11:30

3 stops39h 00m

฿34,313

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sun 6/9

07:00-22:19

2 stops26h 19m

Washington, D.C. Dulles Intl

Sun 13/9

15:15-04:35

2 stops26h 20m

฿34,313

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Sat 6/2

07:10-21:53

2 stops26h 43m

Washington, D.C. Reagan-National

Sun 14/2

14:00-11:30

3 stops33h 30m

฿34,379

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Sat 5/9

15:45-09:59

3 stops29h 14m

Washington, D.C. Reagan-National

Sat 12/9

07:48-22:15

2 stops27h 27m

฿34,742

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 3/10

15:45-11:55

3 stops31h 10m

Washington, D.C. Dulles Intl

Thu 15/10

06:35-23:55

2 stops30h 20m

฿34,742

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Mon 14/9

02:30-15:40

1 stop24h 10m

Washington, D.C. Dulles Intl

Thu 22/10

21:00-13:25

1 stop29h 25m

฿35,929

Flights are sorted by cheapest return flights first.

Deals found on 5/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

BKK-IAD

CNX-IAD

BKK-DCA

DMK-IAD

BKK-BWI

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.

TH0-WAS

BKK-IAD

CNX-IAD

BKK-DCA

DMK-IAD

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 ฿34,775). Flying from Thailand to Washington, D.C. in August is currently the most expensive (average of ฿42,759). 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.?

To ensure you get the cheapest price possible for a flight from Thailand to Washington, D.C., you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with เดลต้า 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.

เดลต้า

7.8

Good

8,505 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

เดลต้า

7.8

Good

8,505 reviews

เดลต้า

7.8

Good

8,505 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Related info for your journey

How long is the flight from Thailand to Washington, D.C.?
Departing from Thailand to Washington, D.C. will take you 23h 45m. Airlines will cover a distance of 14149 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 Don Mueang Intl - Washington, D.C. Dulles Intl 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, July is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of ฿34,775). Flying from Thailand to Washington, D.C. in August is currently the most expensive (average of ฿42,759). 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

Alternative routes

Complete your trip

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Other flight options

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Alternative routes for Thailand to Washington, D.C.

Chiang Mai to Reagan-National flights

Chiang Mai to Dulles Intl flights

Top 4 airlines flying from Thailand to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest฿26,994	Average฿34,542	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
เอทิฮัดแอร์เวย์	Cheapest฿32,911	Average฿33,308	FlexibilityNo cancel fee	On-time75%	Search เอทิฮัดแอร์เวย์ flights
Korean Air	Cheapest฿33,267	Average฿36,362	FlexibilityNo cancel fee	On-time81%	Search Korean Air flights
Qatar Airways	Cheapest฿35,983	Average฿41,347	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

Fly with Cheapflights

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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Cheap flights from Thailand to Washington, D.C. from ฿18,080

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 11 August 2026.

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 11 August 2026.

Best flights from Thailand to Washington, D.C.Discover carefully curated flight deals from Thailand to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 August 2026.

Discover carefully curated flight deals from Thailand to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 August 2026.

Last-minute flights from Thailand to Washington, D.C.Discover last-minute flight deals from Thailand to Washington, D.C.. Data last updated 11 August 2026 and is based on user searches.

Discover last-minute flight deals from Thailand to Washington, D.C.. Data last updated 11 August 2026 and is based on user searches.

One-way flights from Thailand to Washington, D.C.Search for one-way flight options from Thailand to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 11 August 2026.

Search for one-way flight options from Thailand to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 11 August 2026.

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Thailand to Washington, D.C. that are best for you.

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.

Cheapflights Insights

What is the cheapest month to book a flight from Thailand to Washington, D.C.?

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

To ensure you get the cheapest price possible for a flight from Thailand to Washington, D.C., you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with เดลต้า 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.

Related info for your journey

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

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

Can I find deals for flights from Thailand to Washington, D.C. that include hotel bookings?

How can I find direct flights from Thailand to Washington, D.C.?

Can I find deals for business class flights from Thailand to Washington, D.C.?

What is the cheapest month to book a flight from Thailand to Washington, D.C.?

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.

Complete your trip

Complete your trip to Washington, D.C. by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Thailand to Washington, D.C. by cabin class

Find flights from Thailand to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Thailand and Washington, D.C. flights

Browse other Thailand and Washington, D.C. flight options. Last updated on 11 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Thailand to Washington, D.C. flights

Consider these flights travelling from Thailand to Washington, D.C..

Top 4 airlines flying from Thailand to Washington, D.C.

Fly with Cheapflights

How does Cheapflights help users find flights from Thailand to Washington, D.C.?

Why should you use Cheapflights to find cheap flight tickets from Thailand to Washington, D.C.?

Can Cheapflights find flights from Thailand to Washington, D.C. with no change fees?

Can Cheapflights notify me if prices for flights from Thailand to Washington, D.C. become cheaper?

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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 11 August 2026.

Best flights from Thailand to Washington, D.C.
Discover carefully curated flight deals from Thailand to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 August 2026.

Last-minute flights from Thailand to Washington, D.C.
Discover last-minute flight deals from Thailand to Washington, D.C.. Data last updated 11 August 2026 and is based on user searches.

One-way flights from Thailand to Washington, D.C.
Search for one-way flight options from Thailand to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 11 August 2026.