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 13m. Fly via United Airlines, เดลต้า, 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 ฿26,515, 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 ฿32,681 and ฿33,034, 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 Don Mueang Intl - Washington, D.C. Dulles Intl.

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.

฿18,314+ 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 27 August 2026.

Sat 19/1212:40 -

1 stop20h 15m

Fri 15/123:55 -

1 stop22h 55m

Deal found 26/8฿26,144

Sun 13/917:15 -

1 stop39h 45m

Fri 25/901:15 -

1 stop33h 20m

Deal found 25/8฿26,898

Mon 14/1208:15 -

1 stop24h 40m

Mon 4/123:55 -

1 stop22h 55m

Deal found 26/8฿26,931

Thu 1/1017:15 -

1 stop39h 45m

Fri 16/1001:15 -

1 stop28h 35m

Deal found 26/8฿27,029

Mon 21/912:40 -

1 stop20h 20m

Mon 12/1001:15 -

1 stop22h 25m

Deal found 25/8฿27,062

Fri 28/812:40 -

1 stop20h 50m

Fri 11/901:15 -

1 stop33h 20m

Deal found 26/8฿27,160

Thu 24/917:15 -

1 stop39h 45m

Wed 30/901:15 -

1 stop33h 20m

Deal found 27/8฿27,193

Sat 19/1212:40 -

1 stop20h 15m

Sat 2/123:55 -

1 stop22h 55m

Deal found 26/8฿27,357

Sat 29/808:15 -

1 stop25h 15m

Fri 11/901:15 -

1 stop28h 35m

Deal found 26/8฿27,488

Thu 1/1015:25 -

1 stop35h 20m

Sun 1/1117:50 -

1 stop31h 50m

Deal found 25/8฿27,652

Thu 27/817:15 -

1 stop40h 15m

Fri 11/901:15 -

1 stop22h 25m

Deal found 26/8฿27,750

Thu 3/907:00 -

2 stops26h 13m

Wed 23/917:10 -

3 stops29h 25m

Deal found 25/8฿34,204

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 27 August 2026.

Fri 11/907:00 -

2 stops28h 44m

Mon 14/913:00 -

2 stops33h 35m

Deal found 26/8฿34,106

Sat 19/1221:30 -

2 stops26h 05m

Sat 2/106:00 -

2 stops29h 20m

Deal found 26/8฿38,103

Wed 23/1202:15 -

2 stops29h 45m

Sat 9/117:00 -

2 stops30h 10m

Deal found 22/8฿38,365

Tue 10/1109:50 -

2 stops44h 03m

Sat 14/1107:18 -

2 stops28h 17m

Deal found 26/8฿45,736

Sun 25/1023:00 -

1 stop45h 00m

Fri 30/1011:15 -

1 stop21h 55m

Deal found 25/8฿48,816

Thu 12/1109:10 -

2 stops25h 20m

Mon 16/1106:25 -

2 stops28h 25m

Deal found 22/8฿34,499

Mon 5/1001:55 -

2 stops42h 00m

Tue 13/1017:50 -

3 stops32h 00m

Deal found 22/8฿72,471

Sun 25/1016:55 -

3 stops37h 20m

Fri 30/1017:49 -

2 stops42h 01m

Deal found 25/8฿34,597

Sat 19/1209:40 -

2 stops26h 13m

Sat 2/107:00 -

2 stops29h 45m

Deal found 26/8฿38,103

Sun 25/1021:30 -

2 stops32h 07m

Fri 30/1006:05 -

2 stops31h 40m

Deal found 25/8฿38,201

Tue 6/1015:45 -

3 stops33h 14m

Tue 13/1018:37 -

2 stops27h 58m

Deal found 22/8฿34,925

Sun 11/1013:20 -

2 stops27h 00m

Sun 18/1018:15 -

2 stops28h 30m

Deal found 27/8฿43,738

Tue 6/1009:50 -

2 stops24h 45m

Tue 13/1006:00 -

2 stops28h 45m

Deal found 22/8฿38,365

Wed 23/1216:55 -

3 stops35h 09m

Tue 5/108:25 -

2 stops39h 05m

Deal found 24/8฿34,990

Mon 14/917:30 -

2 stops24h 00m

Sun 11/1018:15 -

2 stops28h 30m

Deal found 26/8฿43,803

Mon 28/921:40 -

2 stops31h 06m

Wed 28/1011:40 -

2 stops30h 25m

Deal found 25/8฿49,111

Fri 11/923:55 -

1 stop43h 55m

Mon 14/910:55 -

1 stop22h 50m

Deal found 24/8฿49,439

Sun 13/915:20 -

3 stops31h 25m

Sat 26/919:15 -

2 stops28h 55m

Deal found 25/8฿44,590

Sun 11/1021:40 -

2 stops26h 18m

Sun 18/1009:00 -

2 stops27h 35m

Deal found 27/8฿41,608

Wed 23/1208:55 -

1 stop35h 15m

Tue 5/110:30 -

1 stop35h 35m

Deal found 24/8฿51,241

Mon 28/915:45 -

3 stops30h 40m

Mon 2/1106:39 -

2 stops40h 51m

Deal found 25/8฿38,693

Tue 6/1010:50 -

2 stops29h 30m

Tue 13/1018:15 -

2 stops28h 30m

Deal found 22/8฿45,311

Mon 28/1223:15 -

2 stops31h 04m

Sun 3/119:30 -

2 stops39h 50m

Deal found 26/8฿41,674

Fri 9/1015:45 -

2 stops26h 36m

Fri 16/1009:45 -

2 stops36h 50m

Deal found 25/8฿38,955

Thu 1/1023:50 -

2 stops34h 02m

Sat 31/1011:15 -

1 stop21h 55m

Deal found 25/8฿56,450

Sat 19/1216:55 -

3 stops29h 07m

Sat 2/121:05 -

2 stops50h 25m

Deal found 26/8฿41,117

Sat 19/1208:55 -

1 stop35h 15m

Sat 2/115:30 -

2 stops30h 35m

Deal found 26/8฿60,054

Sat 19/1211:10 -

1 stop33h 00m

Fri 15/110:30 -

1 stop33h 25m

Deal found 26/8฿56,057

Tue 10/1109:10 -

2 stops33h 38m

Sat 14/1110:10 -

3 stops37h 20m

Deal found 26/8฿49,308

Sat 19/1223:00 -

2 stops34h 13m

Fri 15/115:30 -

2 stops28h 25m

Deal found 22/8฿67,556

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

Round-trip from	฿26,144
One-way from	฿18,314
Popular in	August
Cheapest in	October
Average price	฿69,129

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

Search Deals

5/10
3 total stops
50h 36m total
Bangkok to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (฿247,457 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (฿85,016 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

Fri 11/9

07:00-00:44

2 stops28h 44m

Washington, D.C. Dulles Intl

Mon 14/9

13:00-09:35

2 stops33h 35m

฿34,106

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Thu 12/11

09:10-22:30

2 stops25h 20m

Washington, D.C. Reagan-National

Mon 16/11

06:25-22:50

2 stops28h 25m

฿34,499

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Sun 25/10

16:55-19:15

3 stops37h 20m

Washington, D.C. Reagan-National

Fri 30/10

17:49-22:50

2 stops42h 01m

฿34,597

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 6/10

15:45-13:59

3 stops33h 14m

Washington, D.C. Dulles Intl

Tue 13/10

18:37-09:35

2 stops27h 58m

฿34,925

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Wed 23/12

16:55-16:04

3 stops35h 09m

Washington, D.C. Dulles Intl

Tue 5/1

08:25-11:30

2 stops39h 05m

฿34,990

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Sat 19/12

21:30-11:35

2 stops26h 05m

Washington, D.C. Reagan-National

Sat 2/1

06:00-23:20

2 stops29h 20m

฿38,103

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Sat 19/12

09:40-23:53

2 stops26h 13m

Washington, D.C. Dulles Intl

Sat 2/1

07:00-00:45

2 stops29h 45m

฿38,103

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Sun 25/10

21:30-18:37

2 stops32h 07m

Washington, D.C. Reagan-National

Fri 30/10

06:05-00:45

2 stops31h 40m

฿38,201

BangkokWashington, D.C.

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

BKKDCA

Bangkok Suvarnabhumi

Wed 23/12

02:15-20:00

2 stops29h 45m

Washington, D.C. Reagan-National

Sat 9/1

17:00-11:10

2 stops30h 10m

฿38,365

BangkokWashington, D.C.

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

BKKIAD

Bangkok Suvarnabhumi

Tue 6/10

09:50-23:35

2 stops24h 45m

Washington, D.C. Dulles Intl

Tue 13/10

06:00-21:45

2 stops28h 45m

฿38,365

Flights are sorted by cheapest return flights first.

Deals found on 23/8

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-BWI

BKK-IAD

BKK-DCA

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-BWI

BKK-IAD

BKK-DCA

DMK-IAD

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

Currently, March is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of ฿34,139). Flying from Bangkok to Washington, D.C. in August is currently the most expensive (average of ฿45,573). 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 13m. Fly via United Airlines, เดลต้า, 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 ฿26,515, 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 ฿32,681 and ฿33,034, 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 Don Mueang Intl - Washington, D.C. Dulles Intl.
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, March is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of ฿34,139). Flying from Bangkok to Washington, D.C. in August is currently the most expensive (average of ฿45,573). 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

Flights by cabin class

Other flight options

Popular flights

Alternative routes for Bangkok to Washington, D.C.

Chiang Mai to Reagan-National flights

Chiang Mai to Dulles Intl flights

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

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest฿26,515	Average฿34,300	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
เอทิฮัดแอร์เวย์	Cheapest฿32,681	Average฿33,075	FlexibilityNo cancel fee	On-time75%	Search เอทิฮัดแอร์เวย์ flights
Korean Air	Cheapest฿33,034	Average฿36,880	FlexibilityNo cancel fee	On-time81%	Search Korean Air flights

Fly with Cheapflights

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

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.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Bangkok to Washington, D.C. from ฿18,314

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 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 27 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 27 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 27 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 27 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 27 August 2026 and is based on user searches.

Discover last-minute flight deals from Bangkok to Washington, D.C.. Data last updated 27 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 27 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 27 August 2026.

Find flight deals from Bangkok 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 Bangkok to Washington, D.C. that are best for you.

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bangkok 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 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 27 August 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.

Fly with Cheapflights

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.?

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

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

100% Free

Book With Flexibility

Travel Smart

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 27 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 27 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 27 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 27 August 2026.