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 32h 40m. Fly via United Airlines, โอมานแอร์, or เอทิฮัดแอร์เวย์ 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 ฿27,231, 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 ฿31,108 and ฿34,026, respectively. These flights start at 30% 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 - Washington, D.C. Reagan-National.

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

Korean Air, United Airlines and เอทิฮัดแอร์เวย์ 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.

฿14,199+ 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 5 November 2026.

Wed 11/1114:40 -

1 stop30h 20m

Tue 16/214:25 -

1 stop21h 15m

Deal found 3/11฿27,625

Sat 19/1215:20 -

1 stop35h 25m

Fri 15/117:50 -

1 stop31h 50m

Deal found 1/11฿28,971

Sun 15/1122:55 -

1 stop33h 40m

Tue 16/214:25 -

1 stop39h 20m

Deal found 3/11฿31,965

Wed 11/1108:30 -

1 stop36h 30m

Wed 2/1223:35 -

1 stop33h 50m

Deal found 3/11฿32,706

Wed 11/1119:55 -

1 stop25h 05m

Tue 16/217:38 -

2 stops42h 42m

Deal found 3/11฿32,975

Thu 5/1119:55 -

1 stop25h 05m

Mon 9/1123:55 -

1 stop35h 45m

Deal found 4/11฿33,076

Wed 4/1115:15 -

1 stop29h 45m

Mon 16/1123:55 -

1 stop35h 45m

Deal found 3/11฿34,186

Tue 10/1119:55 -

1 stop25h 05m

Sun 22/1114:25 -

1 stop21h 15m

Deal found 4/11฿34,523

Sat 19/1220:50 -

1 stop24h 10m

Fri 15/114:25 -

1 stop21h 15m

Deal found 2/11฿34,590

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

Round-trip from	฿26,313
One-way from	฿14,199
Popular in	April
Cheapest in	January
Average price	฿37,214

AIR PREMIA
4/3-24/3
2 total stops
67h 30m total
Bangkok to Washington, D.C.

Search Deals

เอทิฮัดแอร์เวย์
13/11-31/12
1 total stop
30h 20m total
Bangkok to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (฿328,507 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (฿70,757 potential savings vs. average return price).

Search Deals

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 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 11/3

22:55-20:35

1 stop33h 40m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿14,872

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Fri 18/12

17:40-05:45

2 stops48h 05m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,813

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 12/1

19:10-07:25

2 stops48h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿22,914

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Mon 21/12

13:45-05:45

2 stops28h 00m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿23,251

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Thu 17/12

14:50-05:45

2 stops26h 55m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿23,251

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Fri 13/11

13:45-05:44

2 stops27h 59m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿23,284

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Wed 25/11

08:15-15:55

1 stop43h 40m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿23,553

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Fri 13/11

15:20-13:50

1 stop34h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿23,789

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 1/12

19:10-07:25

2 stops48h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿24,159

Fastest return journey

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Fri 29/1

23:10-11:45

1 stop24h 35m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

฿27,692

Flights are sorted by cheapest return flights first.

Deals found on 31/10

Showing 1-10 of 24 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

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

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 ฿35,465). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿42,194). 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 89 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 32h 40m. Fly via United Airlines, โอมานแอร์, or เอทิฮัดแอร์เวย์ 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 ฿27,231, 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 ฿31,108 and ฿34,026, respectively. These flights start at 30% 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 - 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 ฿35,465). Flying from Bangkok to Washington, D.C. in December is currently the most expensive (average of ฿42,194). 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

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Top 5 airlines flying from Bangkok to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest฿27,231	Average฿35,227	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
เอทิฮัดแอร์เวย์	Cheapest฿31,108	Average฿33,961	FlexibilityNo cancel fee	On-time75%	Search เอทิฮัดแอร์เวย์ flights
Korean Air	Cheapest฿34,026	Average฿39,300	FlexibilityNo cancel fee	On-time81%	Search Korean Air flights
ANA	Cheapest฿35,474	Average฿40,877	FlexibilityNo cancel fee	On-time80%	Search ANA flights
Qatar Airways	Cheapest฿36,697	Average฿41,668	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

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Deals for Bangkok to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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..

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

Yes, we can. To see specific flights from Bangkok to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Cheap flights from Bangkok to Washington, D.C. from ฿14,199

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. 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 5 November 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 5 November 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 5 November 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 5 November 2026.

Last-minute flights from Bangkok to Washington, D.C.Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 5 November 2026 and is based on user searches.

Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 5 November 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 5 November 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 5 November 2026.

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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 89 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.?

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Alternative routes for Bangkok to Washington, D.C.

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Bangkok and Washington, D.C. flights

Browse other Bangkok and Washington, D.C. flight options. Last updated on 5 November 2026.

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Top 5 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 5 November 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 5 November 2026.

Last-minute flights from Bangkok to Washington, D.C.
Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 5 November 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 5 November 2026.