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Cheap flights from Bangkok to Washington, D.C. from ฿15,127

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
18 May — 25 May1
1 adult

Cheapflights Tip: The best prices from Bangkok to Washington, D.C. are usually found in November or January, booked 85 days in advance, depart on a Monday or Tuesday and return on a Thursday

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

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 May 2025.

Round-trip from

฿33,418

One-way from

฿15,127

Popular in

August

Cheapest in

November

Average price

฿37,117
Korean Air
  • Korean Air
  • 16/6-1/7
  • 2 total stops
  • 47h 20m total
  • Bangkok to Washington, D.C.
27/5
  • 27/5
  • 2 total stops
  • 42h 24m total
  • Bangkok to Washington, D.C.
Highest demand for flights based on searches. 9% potential increase in price (฿133,638 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (฿41,284 potential savings vs. average return price).
Average for round-trip flights in May 2025

Find 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 13 May 2025.

Mon 16/623:30BKK - IAD
1 stop22h 45mKorean Air
Tue 1/713:30IAD - BKK
1 stop24h 35mKorean Air
Deal found 12/5฿33,418
Sun 21/915:50BKK - IAD
2 stops38h 55mMultiple Airlines
Thu 13/1111:05IAD - BKK
1 stop41h 15mMultiple Airlines
Deal found 12/5฿33,452
Sun 21/909:35BKK - IAD
2 stops49h 57mUnited Airlines
Thu 13/1108:35IAD - BKK
2 stops32h 35mUnited Airlines
Deal found 12/5฿33,918
Thu 6/1102:35BKK - DCA
2 stops54h 20mMultiple Airlines
Tue 20/117:30DCA - BKK
2 stops28h 20mMultiple Airlines
Deal found 12/5฿35,018
Fri 7/1107:10BKK - DCA
2 stops25h 25mUnited Airlines
Tue 20/114:00DCA - BKK
3 stops32h 50mUnited Airlines
Deal found 12/5฿35,384
Wed 15/1002:35BKK - DCA
2 stops30h 41mเดลต้า
Fri 24/1006:10DCA - BKK
2 stops30h 15mเดลต้า
Deal found 13/5฿35,951
Thu 16/1023:30BKK - IAD
2 stops28h 01mเดลต้า
Fri 24/1007:30IAD - BKK
2 stops27h 15mเดลต้า
Deal found 13/5฿35,951
Sun 20/721:35BKK - IAD
2 stops27h 14mANA
Mon 18/812:15IAD - BKK
1 stop30h 45mANA
Deal found 12/5฿36,517
Mon 17/1101:15BKK - IAD
1 stop25h 30mซาอุเดียแอร์ไลน์
Sat 29/1118:10IAD - BKK
1 stop89h 25mซาอุเดียแอร์ไลน์
Deal found 13/5฿37,250
Tue 10/615:50BKK - IAD
2 stops38h 55mIndiGo
Wed 18/613:30IAD - BKK
2 stops39h 25mIndiGo
Deal found 12/5฿37,550
Fri 7/1115:50BKK - BWI
2 stops25h 55mMultiple Airlines
Tue 20/118:55BWI - BKK
2 stops27h 50mMultiple Airlines
Deal found 12/5฿38,016
Thu 16/1020:00BKK - IAD
1 stop31h 10mQatar Airways
Fri 24/1011:00IAD - BKK
1 stop21h 20mQatar Airways
Deal found 13/5฿39,049

Cheapflights Fare Finder

Customise your flight search to find flights from Bangkok to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 13 May 2025.
Use the filters below to find and compare flights from Bangkok to Washington, D.C. that are best for you.

Fly from

Bangkok

Fly to

Washington, D.C.

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 16/6

23:30-11:15

1 stop22h 45m

Washington, D.C. Dulles Intl

Tue 1/7

13:30-01:05

1 stop24h 35m

฿33,418

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 21/9

15:50-19:45

2 stops38h 55m

Washington, D.C. Dulles Intl

Thu 13/11

11:05-16:20

1 stop41h 15m

฿33,452

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 21/9

09:35-00:32

2 stops49h 57m

Washington, D.C. Dulles Intl

Thu 13/11

08:35-05:10

2 stops32h 35m

฿33,918

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 6/11

02:35-20:55

2 stops54h 20m

Washington, D.C. Reagan-National

Tue 20/1

17:30-09:50

2 stops28h 20m

฿35,018

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 7/11

07:10-20:35

2 stops25h 25m

Washington, D.C. Reagan-National

Tue 20/1

14:00-10:50

3 stops32h 50m

฿35,384

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 16/10

23:30-16:31

2 stops28h 01m

Washington, D.C. Dulles Intl

Fri 24/10

07:30-21:45

2 stops27h 15m

฿35,951

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Mon 16/6

23:30-16:33

2 stops28h 03m

Washington, D.C. Reagan-National

Tue 1/7

06:40-23:25

2 stops29h 45m

฿36,384

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 20/7

21:35-13:49

2 stops27h 14m

Washington, D.C. Dulles Intl

Mon 18/8

12:15-06:00

1 stop30h 45m

฿36,517

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 10/6

15:50-19:45

2 stops38h 55m

Washington, D.C. Dulles Intl

Wed 18/6

13:30-15:55

2 stops39h 25m

฿37,550

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Fri 7/11

15:50-05:45

2 stops25h 55m

Baltimore/Washington

Tue 20/1

18:55-10:45

2 stops27h 50m

฿38,016

Flights are sorted by cheapest return flights first.

Deals found on 11/5

Showing 1-10 of 60 results
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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.
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.

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

Use this chart to determine the optimal time to book a return flight from Bangkok to Washington, D.C.. Price data was last updated on 9 May 2025.

The best time to book flights from Bangkok to Washington, D.C. is 85 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.

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

Find hourly flight availability from Bangkok to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 May 2025.

It’s optimal to fly from Bangkok to Washington, D.C. in the morning. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

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.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated 13 May 2025.
See what other customers who have flown with EVA Air, Korean Air and Japan Airlines from Bangkok to Washington, D.C. have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
8.3
Very Good

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Related info for your journey

Find useful and relevant information for your journey from Bangkok to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from Bangkok to Washington, D.C. round-trip?

    Currently priced at ฿33,418, Korean Air will fly you from Bangkok to Washington, D.C. and back. In addition to Korean Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Japan Airlines and United Airlines - these airlines can fly you to your destination from ฿33,752 and ฿33,918, respectively. These flights start at 15% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Bangkok to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with IndiGo, which is currently one of the cheapest options available, starting at ฿18,292. แอร์แคนาดา flights start at ฿18,825 while deals on Korean Air start at ฿20,324 one-way.

  • 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?

    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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bangkok to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Bangkok to Washington, D.C.

Discover the top 6 airlines that operate flights from Bangkok to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 13 May 2025.
AirlineCheapestAverageFlexibilityOn-time
ซาอุเดียแอร์ไลน์Cheapest฿29,354Average฿32,235FlexibilityNo cancel feeOn-time86%
Search ซาอุเดียแอร์ไลน์ flights
United AirlinesCheapest฿32,316Average฿34,860FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapest฿33,918Average฿41,172FlexibilityNo cancel feeOn-time80%
Search ANA flights
Korean AirCheapest฿34,837Average฿43,245FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Qatar AirwaysCheapest฿41,257Average฿46,389FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest฿43,545Average฿49,276FlexibilityNo cancel feeOn-time75%
Search Emirates flights

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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.

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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!

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