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 28h 50m. Fly via United Airlines, เอทิฮัดแอร์เวย์, or Japan Airlines to get the fastest option. Airlines will cover a distance of 14149 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 ฿26,715, 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 ฿32,928 and ฿33,283, respectively. These flights start at 38% 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.

฿18,750+ 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 29 August 2026.

Sat 19/1212:40 -

1 stop20h 15m

Fri 15/123:55 -

1 stop22h 55m

Deal found 29/8฿26,144

Sun 13/917:15 -

1 stop39h 45m

Fri 25/901:15 -

1 stop33h 20m

Deal found 25/8฿27,101

Mon 14/1208:15 -

1 stop24h 40m

Mon 4/123:55 -

1 stop22h 55m

Deal found 26/8฿27,134

Thu 1/1017:15 -

1 stop39h 45m

Fri 16/1001:15 -

1 stop28h 35m

Deal found 26/8฿27,233

Mon 21/912:40 -

1 stop20h 20m

Mon 12/1001:15 -

1 stop22h 25m

Deal found 25/8฿27,266

Fri 9/1012:40 -

1 stop20h 20m

Fri 16/1001:15 -

1 stop28h 35m

Deal found 27/8฿27,299

Fri 28/812:40 -

1 stop20h 50m

Fri 11/901:15 -

1 stop33h 20m

Deal found 26/8฿27,365

Thu 24/917:15 -

1 stop39h 45m

Wed 30/901:15 -

1 stop33h 20m

Deal found 27/8฿27,398

Thu 12/1107:10 -

2 stops27h 20m

Mon 16/1106:25 -

2 stops34h 45m

Deal found 28/8฿34,099

Thu 3/907:00 -

2 stops27h 59m

Wed 23/909:30 -

2 stops32h 05m

Deal found 27/8฿34,363

Tue 13/1015:45 -

3 stops29h 14m

Tue 20/1007:28 -

2 stops29h 27m

Deal found 28/8฿34,495

Sun 11/1015:45 -

3 stops29h 14m

Sun 18/1006:00 -

2 stops30h 55m

Deal found 27/8฿34,726

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 29 August 2026.

Sun 20/909:35 -

1 stop35h 30m

Thu 24/908:20 -

2 stops33h 15m

Deal found 28/8฿33,868

Sun 20/915:55 -

1 stop28h 50m

Thu 24/915:10 -

1 stop21h 45m

Deal found 28/8฿33,901

Sun 25/1021:30 -

2 stops32h 07m

Fri 30/1006:05 -

2 stops31h 40m

Deal found 25/8฿38,489

Sun 13/913:20 -

2 stops28h 15m

Sat 26/917:45 -

2 stops29h 00m

Deal found 25/8฿39,942

Tue 10/1109:50 -

2 stops44h 03m

Sat 14/1107:18 -

2 stops28h 17m

Deal found 25/8฿46,148

Sun 20/923:50 -

1 stop44h 00m

Thu 22/1010:55 -

1 stop22h 50m

Deal found 27/8฿48,921

Thu 12/1107:10 -

2 stops45h 35m

Mon 16/1119:05 -

3 stops52h 25m

Deal found 28/8฿34,099

Mon 21/909:35 -

2 stops32h 46m

Sat 24/1016:02 -

3 stops32h 28m

Deal found 27/8฿34,231

Sun 13/909:50 -

2 stops25h 51m

Sat 26/906:00 -

2 stops28h 45m

Deal found 25/8฿38,489

Fri 22/109:10 -

2 stops24h 43m

Fri 5/207:00 -

2 stops27h 50m

Deal found 28/8฿34,330

Fri 16/1009:50 -

2 stops24h 45m

Sat 24/1007:23 -

2 stops28h 57m

Deal found 24/8฿38,522

Tue 13/1015:45 -

3 stops31h 10m

Tue 20/1017:45 -

2 stops28h 50m

Deal found 28/8฿34,363

Fri 11/923:55 -

1 stop43h 55m

Mon 14/910:55 -

1 stop22h 50m

Deal found 28/8฿49,317

Mon 28/921:40 -

2 stops31h 06m

Wed 28/1011:40 -

2 stops30h 25m

Deal found 25/8฿49,482

Tue 13/1015:45 -

3 stops29h 14m

Tue 20/1007:28 -

2 stops29h 27m

Deal found 28/8฿34,495

Fri 2/1021:40 -

1 stop24h 25m

Sun 1/1108:13 -

2 stops28h 32m

Deal found 25/8฿41,856

Sat 19/1211:10 -

1 stop33h 00m

Fri 15/110:30 -

1 stop33h 25m

Deal found 29/8฿50,406

Mon 12/1015:45 -

3 stops35h 16m

Mon 19/1017:45 -

2 stops28h 50m

Deal found 28/8฿34,561

Mon 28/1223:15 -

2 stops31h 04m

Sun 3/119:30 -

2 stops39h 50m

Deal found 26/8฿41,988

Sat 19/1223:00 -

1 stop45h 10m

Fri 15/110:30 -

1 stop21h 40m

Deal found 28/8฿56,249

Sun 25/1016:55 -

3 stops35h 29m

Fri 30/1022:10 -

2 stops50h 20m

Deal found 25/8฿34,726

Mon 21/912:10 -

1 stop31h 40m

Sat 24/1016:02 -

2 stops41h 08m

Deal found 27/8฿55,754

Fri 16/1015:45 -

3 stops31h 10m

Sat 24/1012:58 -

2 stops35h 32m

Deal found 24/8฿34,759

Sun 25/1016:55 -

3 stops37h 20m

Fri 30/1017:49 -

2 stops42h 01m

Deal found 25/8฿34,858

Thu 1/1023:50 -

2 stops34h 02m

Sat 31/1011:15 -

1 stop21h 55m

Deal found 25/8฿56,876

Fri 16/1015:45 -

3 stops29h 14m

Sat 24/1019:00 -

2 stops29h 30m

Deal found 24/8฿35,056

Sun 25/1023:00 -

1 stop45h 00m

Fri 30/1015:37 -

2 stops41h 33m

Deal found 25/8฿59,022

Thu 1/1012:10 -

2 stops45h 42m

Tue 3/1110:30 -

1 stop21h 40m

Deal found 29/8฿61,431

Fri 9/1015:45 -

2 stops26h 36m

Fri 16/1009:45 -

2 stops36h 50m

Deal found 25/8฿39,249

Tue 10/1109:10 -

2 stops33h 38m

Sat 14/1110:10 -

3 stops37h 20m

Deal found 27/8฿49,548

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

Round-trip from	฿26,144
One-way from	฿18,750
Popular in	August
Cheapest in	October
Average price	฿69,651

Thai Airways
19/12-15/1
2 total stops
43h 10m total
Bangkok to Washington, D.C.

Search Deals

9/11
3 total stops
45h 58m total
Bangkok to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (฿251,208 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (฿86,318 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 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

Sun 20/9

09:35-10:05

1 stop35h 30m

Washington, D.C. Dulles Intl

Thu 24/9

08:20-04:35

2 stops33h 15m

฿33,868

Fastest return journey

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sun 20/9

15:55-09:45

1 stop28h 50m

Washington, D.C. Dulles Intl

Thu 24/9

15:10-23:55

1 stop21h 45m

฿33,901

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Thu 12/11

07:10-16:45

2 stops45h 35m

Washington, D.C. Reagan-National

Mon 16/11

19:05-11:30

3 stops52h 25m

฿34,099

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Mon 21/9

09:35-07:21

2 stops32h 46m

Washington, D.C. Dulles Intl

Sat 24/10

16:02-11:30

3 stops32h 28m

฿34,231

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Fri 22/1

09:10-21:53

2 stops24h 43m

Washington, D.C. Reagan-National

Fri 5/2

07:00-22:50

2 stops27h 50m

฿34,330

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 13/10

15:45-11:55

3 stops31h 10m

Washington, D.C. Dulles Intl

Tue 20/10

17:45-09:35

2 stops28h 50m

฿34,363

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Tue 13/10

15:45-09:59

3 stops29h 14m

Washington, D.C. Reagan-National

Tue 20/10

07:28-23:55

2 stops29h 27m

฿34,495

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Mon 12/10

15:45-16:01

3 stops35h 16m

Washington, D.C. Dulles Intl

Mon 19/10

17:45-09:35

2 stops28h 50m

฿34,561

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sun 25/10

16:55-17:24

3 stops35h 29m

Washington, D.C. Dulles Intl

Fri 30/10

22:10-11:30

2 stops50h 20m

฿34,726

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Fri 16/10

15:45-11:55

3 stops31h 10m

Washington, D.C. Dulles Intl

Sat 24/10

12:58-11:30

2 stops35h 32m

฿34,759

Flights are sorted by cheapest return flights first.

Deals found on 24/8

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-IAD

BKK-DCA

BKK-BWI

DMK-IAD

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-IAD

BKK-DCA

BKK-BWI

DMK-IAD

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 ฿34,792). Flying from Bangkok to Washington, D.C. in August is currently the most expensive (average of ฿45,091). 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.

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 28h 50m. Fly via United Airlines, เอทิฮัดแอร์เวย์, or Japan Airlines to get the fastest option. Airlines will cover a distance of 14149 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 ฿26,715, 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 ฿32,928 and ฿33,283, respectively. These flights start at 38% 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 ฿34,792). Flying from Bangkok to Washington, D.C. in August is currently the most expensive (average of ฿45,091). 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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Top 3 airlines flying from Bangkok to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest฿26,715	Average฿34,559	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
เอทิฮัดแอร์เวย์	Cheapest฿32,928	Average฿33,325	FlexibilityNo cancel fee	On-time75%	Search เอทิฮัดแอร์เวย์ flights
Korean Air	Cheapest฿33,283	Average฿37,159	FlexibilityNo cancel fee	On-time81%	Search Korean Air flights

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Cheap flights from Bangkok to Washington, D.C. from ฿18,750

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 9/11. 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 29 August 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 29 August 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 29 August 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 29 August 2026.

Last-minute flights from Bangkok to Washington, D.C.Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 29 August 2026 and is based on user searches.

Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 29 August 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 29 August 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 29 August 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.?

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

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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 29 August 2026.

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

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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 29 August 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 29 August 2026.

Last-minute flights from Bangkok to Washington, D.C.
Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 29 August 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 29 August 2026.