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 24h 15m. 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 ฿26,610, 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 ฿32,798 and ฿33,153, 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 Don Mueang Intl - Washington, D.C. Dulles Intl and Bangkok Suvarnabhumi - Baltimore/Washington.

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.

฿17,459+ 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 9 September 2026.

Sat 26/912:40 -

1 stop20h 20m

Fri 2/1001:15 -

1 stop22h 25m

Deal found 6/9฿26,468

Sat 19/1212:40 -

1 stop20h 15m

Fri 15/123:55 -

1 stop22h 55m

Deal found 6/9฿26,863

Fri 11/917:15 -

1 stop39h 45m

Fri 25/901:15 -

1 stop22h 25m

Deal found 7/9฿27,027

Mon 19/1008:15 -

1 stop24h 45m

Sat 24/1001:15 -

1 stop22h 35m

Deal found 5/9฿27,422

Tue 20/1017:15 -

1 stop39h 45m

Sat 24/1001:15 -

1 stop22h 35m

Deal found 7/9฿27,455

Mon 30/1108:10 -

1 stop24h 45m

Sat 5/1223:55 -

1 stop22h 55m

Deal found 8/9฿27,521

Wed 7/1012:40 -

1 stop20h 20m

Fri 30/1001:15 -

1 stop22h 35m

Deal found 8/9฿27,586

Sat 24/1012:40 -

1 stop20h 20m

Fri 30/1001:15 -

1 stop22h 35m

Deal found 9/9฿27,751

Fri 25/1217:30 -

1 stop39h 25m

Sat 9/123:55 -

1 stop28h 55m

Deal found 8/9฿27,882

Mon 21/912:40 -

1 stop20h 20m

Mon 12/1001:15 -

1 stop22h 25m

Deal found 6/9฿27,948

Sat 3/1007:30 -

2 stops25h 30m

Fri 9/1001:15 -

2 stops29h 20m

Deal found 5/9฿33,998

Thu 12/1109:10 -

2 stops49h 20m

Mon 16/1115:30 -

3 stops32h 00m

Deal found 4/9฿34,097

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 9 September 2026.

Mon 2/1109:10 -

1 stop36h 00m

Sun 15/1108:23 -

2 stops32h 47m

Deal found 5/9฿33,899

Thu 12/1120:50 -

1 stop24h 15m

Mon 16/1114:35 -

1 stop28h 40m

Deal found 8/9฿33,965

Wed 23/1201:05 -

2 stops27h 34m

Sat 2/106:00 -

2 stops30h 20m

Deal found 5/9฿38,108

Thu 4/309:05 -

1 stop42h 50m

Thu 25/321:05 -

2 stops30h 15m

Deal found 5/9฿39,357

Sun 11/1012:10 -

1 stop31h 30m

Sun 18/1010:55 -

1 stop22h 50m

Deal found 6/9฿48,794

Sat 19/1223:00 -

1 stop45h 10m

Fri 15/110:30 -

1 stop21h 40m

Deal found 5/9฿55,995

Fri 25/1223:05 -

1 stop30h 00m

Sat 9/118:55 -

1 stop33h 10m

Deal found 8/9฿58,757

Thu 14/107:55 -

2 stops45h 22m

Wed 12/507:00 -

2 stops29h 00m

Deal found 9/9฿63,656

Mon 1/209:10 -

1 stop36h 00m

Wed 24/212:40 -

2 stops28h 30m

Deal found 8/9฿33,965

Mon 21/921:00 -

1 stop23h 45m

Sun 27/915:10 -

1 stop21h 45m

Deal found 6/9฿33,998

Sat 26/921:40 -

2 stops30h 47m

Fri 2/1006:15 -

2 stops30h 20m

Deal found 6/9฿69,180

Thu 12/1109:10 -

2 stops49h 20m

Mon 16/1109:30 -

2 stops31h 40m

Deal found 7/9฿34,130

Sun 27/923:30 -

2 stops52h 19m

Sat 3/1016:45 -

2 stops43h 50m

Deal found 6/9฿38,174

Mon 21/1207:10 -

2 stops29h 49m

Sun 10/110:15 -

3 stops37h 15m

Deal found 6/9฿34,195

Thu 24/1223:15 -

1 stop22h 35m

Sat 2/107:00 -

2 stops29h 20m

Deal found 5/9฿41,429

Mon 5/1015:45 -

3 stops31h 10m

Mon 12/1018:37 -

2 stops27h 58m

Deal found 5/9฿36,037

Sat 26/912:10 -

1 stop31h 40m

Sat 3/1010:55 -

1 stop37h 15m

Deal found 6/9฿49,419

Sat 10/1021:40 -

2 stops27h 33m

Sat 17/1018:26 -

2 stops43h 39m

Deal found 6/9฿41,692

Thu 4/309:10 -

2 stops23h 55m

Thu 25/315:45 -

2 stops32h 45m

Deal found 7/9฿36,990

Sat 10/1012:10 -

1 stop31h 30m

Sun 18/1010:55 -

1 stop22h 50m

Deal found 6/9฿49,419

Sun 11/1023:30 -

2 stops29h 23m

Sun 18/1007:00 -

2 stops27h 45m

Deal found 6/9฿41,692

Mon 2/1111:10 -

1 stop33h 00m

Sun 15/1110:30 -

1 stop21h 40m

Deal found 5/9฿49,846

Sat 26/923:30 -

2 stops33h 33m

Sun 4/1006:05 -

2 stops30h 30m

Deal found 6/9฿41,692

Sun 27/915:45 -

3 stops31h 23m

Sun 4/1008:25 -

2 stops28h 30m

Deal found 6/9฿38,766

Mon 21/1211:10 -

1 stop33h 00m

Sun 10/110:30 -

1 stop33h 25m

Deal found 6/9฿50,898

Fri 9/1007:55 -

2 stops32h 25m

Sun 18/1007:02 -

2 stops28h 58m

Deal found 6/9฿71,646

Sun 27/915:45 -

3 stops31h 23m

Fri 2/1015:30 -

3 stops31h 05m

Deal found 6/9฿42,415

Mon 18/111:10 -

1 stop33h 00m

Wed 5/510:55 -

1 stop22h 40m

Deal found 8/9฿52,805

Sat 9/114:05 -

2 stops27h 30m

Mon 18/118:20 -

2 stops27h 30m

Deal found 9/9฿80,194

Mon 18/111:10 -

1 stop33h 00m

Fri 7/510:55 -

1 stop22h 40m

Deal found 8/9฿52,805

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

Round-trip from	฿26,468
One-way from	฿17,459
Popular in	April
Cheapest in	October
Average price	฿37,878

Thai Airways
26/9-2/10
2 total stops
42h 45m total
Bangkok to Washington, D.C.

Search Deals

Thai Airways
10/12-31/12
1 total stop
39h 25m total
Bangkok to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (฿258,820 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (฿68,862 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

Sun 20/9

17:15-22:00

1 stop39h 45m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿18,051

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 19/9

01:35-05:40

2 stops39h 05m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿20,780

BangkokWashington, D.C.

DMK Bangkok Don Mueang Intl - IAD Washington, D.C. Dulles Intl

DMKIAD

Bangkok Don Mueang Intl

Mon 21/9

20:25-09:45

2 stops48h 20m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,273

BangkokWashington, D.C.

DMK Bangkok Don Mueang Intl - IAD Washington, D.C. Dulles Intl

DMKIAD

Bangkok Don Mueang Intl

Sun 20/9

20:25-09:45

2 stops48h 20m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,273

BangkokBaltimore

BKK Bangkok Suvarnabhumi - BWI Baltimore/Washington

BKKBWI

Bangkok Suvarnabhumi

Wed 21/10

10:50-23:55

2 stops24h 05m

Baltimore/Washington

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,701

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Tue 29/9

20:15-23:10

2 stops37h 55m

Washington, D.C. Reagan-National

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,734

Fastest return journey

BangkokBaltimore

BKK Bangkok Suvarnabhumi - BWI Baltimore/Washington

BKKBWI

Bangkok Suvarnabhumi

Fri 13/11

10:55-22:55

2 stops24h 00m

Baltimore/Washington

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,767

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sun 13/12

17:50-16:26

2 stops34h 36m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿21,997

BangkokBaltimore

BKK Bangkok Suvarnabhumi - BWI Baltimore/Washington

BKKBWI

Bangkok Suvarnabhumi

Sat 19/9

17:30-06:30

2 stops24h 00m

Baltimore/Washington

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,063

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 19/9

10:50-05:40

2 stops29h 50m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,063

Flights are sorted by cheapest return flights first.

Deals found on 4/9

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-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 Bangkok to Washington, D.C.

TH1-WAS

BKK-IAD

BKK-DCA

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 ฿34,656). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿40,969). 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 24h 15m. 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 ฿26,610, 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 ฿32,798 and ฿33,153, 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 Don Mueang Intl - Washington, D.C. Dulles Intl and Bangkok Suvarnabhumi - Baltimore/Washington.
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 ฿34,656). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿40,969). 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฿26,610	Average฿34,423	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
เอทิฮัดแอร์เวย์	Cheapest฿32,798	Average฿33,194	FlexibilityNo cancel fee	On-time75%	Search เอทิฮัดแอร์เวย์ flights
Korean Air	Cheapest฿33,153	Average฿37,013	FlexibilityNo cancel fee	On-time81%	Search Korean Air flights

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Cheap flights from Bangkok to Washington, D.C. from ฿17,459

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. 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 9 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 9 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 9 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 9 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 9 September 2026 and is based on user searches.

Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 9 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 9 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 9 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.

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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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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 9 September 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 9 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 9 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 9 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 9 September 2026.