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

There are many flights that can get you from Bangkok to Washington, D.C. in 26h 34m. Fly via United Airlines, เดลต้า, or Emirates to get the fastest option. Airlines will cover a distance of 14157 km. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines flying from Bangkok to Washington, D.C. round-trip?

Currently priced at ฿26,939, United Airlines will fly you from Bangkok to Washington, D.C. and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from เอทิฮัดแอร์เวย์ and Korean Air - these airlines can fly you to your destination from ฿33,204 and ฿33,562, respectively. These flights start at 33% lower than the current average price 3 months from now.

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 Bangkok to Washington, D.C.?

The most popular flight routes from Bangkok to Washington, D.C. are Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl, Bangkok Suvarnabhumi - Baltimore/Washington and Bangkok Suvarnabhumi - Washington, D.C. Reagan-National.

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

United Airlines, เอทิฮัดแอร์เวย์ and Korean Air are the most popular airlines when flying from Bangkok to Washington, D.C..

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

When flying from Bangkok to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Yes. In addition to deals on Bangkok to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

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

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

Yes. Cheapflights offers flight deals from Bangkok 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.

฿16,843+ Cheap Flights from Bangkok to Washington, D.C.

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

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Bangkok to Washington, D.C.
Explore the most affordable flight options available from Bangkok to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Fri 30/1014:30 -

2 stops30h 35m

Fri 6/1123:35 -

1 stop33h 50m

Deal found 15/9฿26,729

Fri 30/1015:20 -

1 stop34h 30m

Fri 6/1117:50 -

1 stop31h 50m

Deal found 15/9฿27,262

Wed 28/1008:10 -

1 stop24h 45m

Wed 4/1123:55 -

1 stop28h 55m

Deal found 13/9฿27,528

Mon 14/908:15 -

1 stop24h 45m

Sat 26/901:15 -

1 stop22h 25m

Deal found 12/9฿27,561

Thu 1/1017:15 -

1 stop39h 45m

Sat 17/1001:15 -

1 stop33h 20m

Deal found 11/9฿27,661

Fri 30/1017:30 -

1 stop39h 25m

Mon 2/1123:55 -

1 stop33h 50m

Deal found 14/9฿27,694

Fri 23/1017:15 -

1 stop39h 45m

Fri 30/1001:15 -

1 stop28h 35m

Deal found 13/9฿27,728

Fri 18/912:40 -

1 stop20h 20m

Wed 30/901:15 -

1 stop22h 25m

Deal found 13/9฿27,794

Sat 19/1212:40 -

1 stop20h 15m

Fri 15/123:55 -

1 stop22h 55m

Deal found 15/9฿28,393

Mon 21/1208:10 -

1 stop24h 45m

Wed 6/123:55 -

1 stop28h 55m

Deal found 13/9฿28,427

Thu 12/1107:10 -

2 stops27h 20m

Mon 16/1115:30 -

3 stops32h 00m

Deal found 16/9฿34,252

Wed 7/1007:00 -

2 stops26h 14m

Wed 2/1214:25 -

3 stops33h 05m

Deal found 15/9฿34,352

Best flights from Bangkok to Washington, D.C.
Discover carefully curated flight deals from Bangkok to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Fri 22/107:10 -

3 stops44h 55m

Fri 19/213:00 -

3 stops34h 30m

Deal found 16/9฿34,285

Fri 25/1220:50 -

1 stop24h 15m

Fri 1/114:35 -

1 stop20h 45m

Deal found 16/9฿38,179

Sat 10/1002:30 -

1 stop24h 10m

Sun 18/1021:00 -

1 stop30h 25m

Deal found 13/9฿38,213

Fri 23/1002:35 -

2 stops33h 07m

Mon 7/1207:26 -

2 stops27h 39m

Deal found 15/9฿38,346

Thu 4/308:15 -

1 stop35h 55m

Thu 25/321:05 -

2 stops30h 15m

Deal found 15/9฿40,177

Tue 12/108:00 -

2 stops50h 49m

Sat 15/513:56 -

2 stops38h 49m

Deal found 12/9฿48,798

Wed 3/223:00 -

1 stop45h 10m

Wed 24/215:41 -

2 stops28h 14m

Deal found 16/9฿55,755

Sun 1/1107:55 -

2 stops45h 17m

Sun 8/1107:02 -

2 stops28h 33m

Deal found 16/9฿60,182

Sat 7/1123:05 -

1 stop30h 00m

Sat 21/1118:04 -

2 stops34h 01m

Deal found 13/9฿62,179

Thu 12/1107:10 -

2 stops27h 20m

Mon 16/1107:40 -

2 stops33h 30m

Deal found 16/9฿34,285

Mon 21/1207:10 -

2 stops26h 03m

Sat 9/122:10 -

2 stops49h 20m

Deal found 12/9฿34,418

Thu 29/1001:05 -

2 stops26h 34m

Mon 2/1106:00 -

2 stops27h 30m

Deal found 14/9฿38,546

Wed 23/1220:50 -

1 stop24h 15m

Fri 1/114:35 -

1 stop20h 45m

Deal found 16/9฿39,877

Mon 21/1207:10 -

2 stops29h 28m

Sun 10/107:00 -

2 stops40h 30m

Deal found 13/9฿34,518

Tue 22/1201:05 -

2 stops26h 22m

Fri 1/107:05 -

2 stops29h 15m

Deal found 16/9฿41,774

Tue 20/1007:00 -

2 stops35h 21m

Sun 25/1022:47 -

2 stops37h 03m

Deal found 13/9฿34,651

Thu 7/111:15 -

2 stops47h 34m

Wed 12/517:22 -

2 stops35h 23m

Deal found 14/9฿48,931

Sat 12/1221:40 -

2 stops27h 18m

Fri 1/107:20 -

2 stops27h 45m

Deal found 13/9฿42,074

Mon 19/1015:45 -

3 stops33h 14m

Mon 26/1017:56 -

2 stops30h 34m

Deal found 13/9฿34,784

Mon 21/1207:10 -

2 stops29h 28m

Wed 6/116:10 -

2 stops31h 20m

Deal found 13/9฿34,818

Mon 21/1208:55 -

1 stop35h 15m

Thu 7/110:30 -

1 stop21h 40m

Deal found 15/9฿56,853

Wed 6/111:10 -

1 stop33h 00m

Wed 12/510:55 -

1 stop22h 40m

Deal found 14/9฿61,214

Mon 21/1208:55 -

1 stop35h 15m

Sat 9/110:30 -

1 stop35h 35m

Deal found 12/9฿56,986

Wed 13/101:05 -

2 stops25h 33m

Thu 13/507:00 -

2 stops29h 35m

Deal found 12/9฿47,267

Sat 31/1007:10 -

2 stops24h 36m

Fri 6/1107:00 -

2 stops27h 50m

Deal found 17/9฿35,716

Fri 20/1123:05 -

1 stop30h 00m

Sun 29/1118:55 -

1 stop33h 10m

Deal found 15/9฿66,240

Wed 6/111:10 -

1 stop33h 00m

Fri 14/510:55 -

1 stop22h 40m

Deal found 14/9฿61,214

Mon 21/1217:50 -

2 stops23h 50m

Fri 1/118:40 -

2 stops30h 25m

Deal found 12/9฿58,750

Thu 7/111:10 -

1 stop33h 00m

Tue 11/510:55 -

1 stop22h 40m

Deal found 15/9฿63,244

Wed 6/123:05 -

1 stop30h 00m

Wed 12/521:30 -

1 stop31h 35m

Deal found 14/9฿70,367

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

Round-trip from	฿26,729
One-way from	฿16,843
Popular in	April
Cheapest in	October
Average price	฿38,346

AIR PREMIA
30/10-6/11
3 total stops
64h 25m total
Bangkok to Washington, D.C.

Search Deals

5/10-31/12
3 total stops
47h 55m total
Bangkok to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (฿264,984 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (฿70,509 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Bangkok 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

Thu 22/10

02:35-23:59

2 stops32h 24m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿20,371

Fastest return journey

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Mon 5/10

21:00-09:45

1 stop23h 45m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,337

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Wed 23/12

17:50-17:56

2 stops36h 06m

Washington, D.C. Reagan-National

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,069

BangkokBaltimore

BKK Bangkok Suvarnabhumi - BWI Baltimore/Washington

BKKBWI

Bangkok Suvarnabhumi

Mon 21/9

13:20-06:30

2 stops28h 10m

Baltimore/Washington

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,269

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Fri 6/11

13:45-05:44

2 stops27h 59m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,368

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Mon 12/10

21:00-09:45

1 stop23h 45m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿24,565

BangkokBaltimore

BKK Bangkok Suvarnabhumi - BWI Baltimore/Washington

BKKBWI

Bangkok Suvarnabhumi

Sat 23/1

09:50-23:16

2 stops25h 26m

Baltimore/Washington

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿25,830

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 5/1

19:10-07:25

2 stops48h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿27,827

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Wed 4/11

16:55-11:28

3 stops30h 33m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿29,924

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Thu 21/1

16:55-11:25

3 stops30h 30m

Washington, D.C. Reagan-National

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿30,024

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Bangkok to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Bangkok with our price prediction graph.

TH1-WAS

BKK-DCA

BKK-IAD

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 Bangkok to Washington, D.C.

TH1-WAS

BKK-DCA

BKK-IAD

DMK-IAD

BKK-BWI

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

Currently, July is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of ฿35,084). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿41,475). 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 Bangkok to Washington, D.C.?

The best time to book flights from Bangkok to Washington, D.C. is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

How long is the flight from Bangkok to Washington, D.C.?
There are many flights that can get you from Bangkok to Washington, D.C. in 26h 34m. Fly via United Airlines, เดลต้า, or Emirates to get the fastest option. Airlines will cover a distance of 14157 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Bangkok to Washington, D.C. round-trip?
Currently priced at ฿26,939, United Airlines will fly you from Bangkok to Washington, D.C. and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from เอทิฮัดแอร์เวย์ and Korean Air - these airlines can fly you to your destination from ฿33,204 and ฿33,562, respectively. These flights start at 33% lower than the current average price 3 months from now.
What are the most popular routes from Bangkok to Washington, D.C.?
The most popular flight routes from Bangkok 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 Bangkok to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Bangkok to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Bangkok 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 Bangkok to Washington, D.C..
Can I find deals for business class flights from Bangkok to Washington, D.C.?
Yes. Cheapflights offers flight deals from Bangkok 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 Bangkok to Washington, D.C.?
Currently, July is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of ฿35,084). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿41,475). 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.

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Alternative routes for Bangkok to Washington, D.C.

Chiang Mai to Dulles Intl flights

Chiang Mai to Reagan-National flights

Top 3 airlines flying from Bangkok to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest฿26,939	Average฿34,849	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
เอทิฮัดแอร์เวย์	Cheapest฿33,204	Average฿33,604	FlexibilityNo cancel fee	On-time75%	Search เอทิฮัดแอร์เวย์ flights
Korean Air	Cheapest฿33,562	Average฿37,470	FlexibilityNo cancel fee	On-time81%	Search Korean Air flights

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Bangkok to Washington, D.C..

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Cheap flights from Bangkok to Washington, D.C. from ฿16,843

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.

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

Cheapest flights from Bangkok to Washington, D.C.Explore the most affordable flight options available from Bangkok to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Explore the most affordable flight options available from Bangkok to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from Bangkok to Washington, D.C.Discover carefully curated flight deals from Bangkok to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from Bangkok to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Bangkok to Washington, D.C.Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Bangkok to Washington, D.C.Search for one-way flight options from Bangkok to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from Bangkok to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

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

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Best time to book a flight from Bangkok to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Bangkok with our price prediction graph.

Cheapflights Insights

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

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

The best time to book flights from Bangkok to Washington, D.C. is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

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

What are the cheapest airlines flying from Bangkok to Washington, D.C. round-trip?

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bangkok to Washington, D.C.

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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 Bangkok to Washington, D.C. by cabin class

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

Bangkok and Washington, D.C. flights

Browse other Bangkok and Washington, D.C. flight options. Last updated on 17 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top 3 airlines flying from Bangkok to Washington, D.C.

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

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

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

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Cheapest flights from Bangkok to Washington, D.C.
Explore the most affordable flight options available from Bangkok to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from Bangkok to Washington, D.C.
Discover carefully curated flight deals from Bangkok to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Bangkok to Washington, D.C.
Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Bangkok to Washington, D.C.
Search for one-way flight options from Bangkok to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.