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Washington, D.C.

$493+ Cheap flights from Bangkok to Washington, D.C. (WAS)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
abr. 8 — abr. 151
mar. 4/8
mar. 4/15
1 adult, Economy
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Cheapflights Tip: The best prices from Bangkok to Washington, D.C. are usually found in November or July, booked 78 days in advance, depart on a Sunday or Wednesday and return on a Saturday

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 abril 3, 2025.

Round-trip from

$983
(SAUDIA)

One-way from

$493
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$1,175
From Bangkok to Washington, D.C. (WAS)
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One-way flight from Bangkok to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 8% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 abril 3, 2025.

This SAUDIA deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/203:25 pmBKK - IAD
1 stop107h 20mSAUDIA
mar. 7/226:50 pmIAD - BKK
1 stop66h 20mSAUDIA
Deal found 4/2$983
This Gotogate deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/273:25 pmBKK - IAD
2 stops59h 20mMultiple Airlines
sáb. 5/39:40 pmIAD - BKK
2 stops31h 15mMultiple Airlines
Deal found 4/2$989
This United Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/149:35 amBKK - IAD
2 stops46h 22mUnited Airlines
jue. 8/146:10 amIAD - BKK
2 stops35h 25mUnited Airlines
Deal found 4/2$991
This Kiwi.com deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/147:45 amDMK - IAD
2 stops43h 00mMultiple Airlines
mar. 5/1311:00 amIAD - DMK
1 stop24h 50mMultiple Airlines
Deal found 4/2$1,019
This United Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/279:35 amBKK - DCA
2 stops46h 30mUnited Airlines
vie. 5/26:00 amDCA - BKK
2 stops35h 35mUnited Airlines
Deal found 4/2$1,027
This SWISS deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/1512:50 pmBKK - IAD
1 stop37h 25mSWISS
lun. 6/28:45 pmIAD - BKK
1 stop26h 00mSWISS
Deal found 4/2$1,045
This Gurufare deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1810:05 pmBKK - DCA
2 stops36h 28mJapan Airlines
sáb. 11/296:32 amDCA - BKK
2 stops45h 48mJapan Airlines
Deal found 4/2$1,067
This EaseMyTrip deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/181:20 pmBKK - BWI
2 stops28h 09mMultiple Airlines
mar. 5/277:05 pmBWI - BKK
2 stops30h 05mMultiple Airlines
Deal found 4/2$1,114
This American Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/2710:05 pmBKK - DCA
2 stops33h 48mAmerican Airlines
jue. 5/16:05 pmDCA - BKK
2 stops48h 45mAmerican Airlines
Deal found 4/2$1,117
This Air China deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/251:30 amBKK - IAD
1 stop29h 00mAir China
sáb. 5/311:00 pmIAD - BKK
1 stop32h 10mAir China
Deal found 4/2$1,138
This Lufthansa deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/1511:00 pmBKK - IAD
1 stop31h 25mLufthansa
sáb. 5/1710:20 pmIAD - BKK
2 stops29h 30mLufthansa
Deal found 4/2$1,158
This Air Canada deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/188:35 amBKK - IAD
2 stops24h 30mAir Canada
sáb. 11/293:55 pmIAD - BKK
2 stops50h 20mAir Canada
Deal found 4/2$1,163

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated abril 3, 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

vie. 6/20

3:25 pm-3:45 pm

1 stop107h 20m

Washington, D.C. Dulles Intl

mar. 7/22

6:50 pm-12:10 am

1 stop66h 20m

$983

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

dom. 4/27

3:25 pm-3:45 pm

2 stops59h 20m

Washington, D.C. Dulles Intl

sáb. 5/3

9:40 pm-3:55 pm

2 stops31h 15m

$989

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

mié. 5/14

9:35 am-8:57 pm

2 stops46h 22m

Washington, D.C. Dulles Intl

jue. 8/14

6:10 am-4:35 am

2 stops35h 25m

$991

BangkokWashington, D.C.

DMK - IAD

DMKIAD

Bangkok Don Mueang Intl

lun. 4/14

7:45 am-3:45 pm

2 stops43h 00m

Washington, D.C. Dulles Intl

mar. 5/13

11:00 am-10:50 pm

1 stop24h 50m

$1,019

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

dom. 4/27

9:35 am-9:05 pm

2 stops46h 30m

Washington, D.C. Reagan-National

vie. 5/2

6:00 am-4:35 am

2 stops35h 35m

$1,027

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

jue. 5/15

12:50 pm-3:15 pm

1 stop37h 25m

Washington, D.C. Dulles Intl

lun. 6/2

8:45 pm-9:45 am

1 stop26h 00m

$1,045

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

dom. 5/18

1:20 pm-6:29 am

2 stops28h 09m

Baltimore/Washington

mar. 5/27

7:05 pm-12:10 pm

2 stops30h 05m

$1,114

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

dom. 4/27

10:05 pm-8:53 pm

2 stops33h 48m

Washington, D.C. Reagan-National

jue. 5/1

6:05 pm-5:50 am

2 stops48h 45m

$1,117

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

dom. 4/27

9:35 pm-2:11 pm

2 stops27h 36m

Washington, D.C. Dulles Intl

vie. 5/2

12:10 pm-4:35 am

1 stop29h 25m

$1,122

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

vie. 4/25

1:30 am-7:30 pm

1 stop29h 00m

Washington, D.C. Dulles Intl

sáb. 5/3

11:00 pm-6:10 pm

1 stop32h 10m

$1,138

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

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 round-trip 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 round-trip flight from Bangkok to Washington, D.C.. Price data was last updated on March 28, 2025.

The best time to book flights from Bangkok to Washington, D.C. is 76 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 month to book a flight from Bangkok to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of $241). Flying from Bangkok to Washington, D.C. in March is currently the most expensive (average of $290). 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.

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 abril 3, 2025.

It’s typically best to fly out from Bangkok to Washington, D.C. in the morning. Doing so could potentially save you 9% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 abril 3, 2025.
Get a feel of what it's like to fly with Korean Air, Japan Airlines and ANA from Bangkok to Washington, D.C. by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,052 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Korean Air
8.4
Very good
1,052 reviews
Korean Air
8.4
Very good
1,052 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Japan Airlines
8.3
Very good
1,441 reviews
Korean Air
8.4
Very good
1,052 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
ANA
8.3
Very good
830 reviews
Korean Air
8.4
Very good
1,052 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Singapore Airlines
8.1
Very good
1,288 reviews
Korean Air
8.4
Very good
1,052 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Delta
8.0
Very good
7,897 reviews
Korean Air
8.4
Very good
1,052 reviews

Boarding

8.5

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

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?

    Cheapflights users have booked flights from Bangkok to Washington, D.C. round-trip from $983. Other airlines that can offer you cheap pricing are United Airlines, from $991, and SWISS, from $1,045. SAUDIA is priced at 16% lower than the current average price of a flight leaving 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 SAUDIA, which is currently one of the cheapest options available, starting at $630. Air China flights start at $705 while deals on Japan Airlines start at $760 one-way.

  • What are the most popular routes from Bangkok to Washington, D.C.?

    While some choose either Bangkok Suvarnabhumi - Washington, D.C. Reagan-National or Bangkok Suvarnabhumi - Baltimore/Washington, Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl is the most popular route 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 vacation 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, August is the cheapest month in which you can book a flight from Bangkok to Washington, D.C. (average of $241). Flying from Bangkok to Washington, D.C. in March is currently the most expensive (average of $290). 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

Traveling to a place near Bangkok?

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Arlington
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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.
Suvarnabhumi to Dulles Intl flights
Suvarnabhumi to Reagan-National flights
Chiang Mai to Dulles Intl flights
Chiang Mai to Reagan-National flights

Top 7 airlines flying from Bangkok to Washington, D.C.

Discover the top 7 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 2,558,603 searches. Data last updated abril 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
ANACheapest$919Average$1,244FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$936Average$1,091FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$1,043Average$1,212FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,203Average$1,536FlexibilityNo cancel feeOn-time68%
Turkish AirlinesCheapest$1,287Average$1,448FlexibilityNo cancel feeOn-time77%
EmiratesCheapest$1,340Average$1,511FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$1,351Average$1,401FlexibilityNo cancel feeOn-time71%

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