HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$508+ Cheap flights from Thailand 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — WAS
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Thailand to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Keep the following information in mind while searching for Thailand to Washington, D.C. flight deals. Data was last updated April 2, 2025.

Round-trip from

$983
(SAUDIA)

One-way from

$508
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

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

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

Cheapest flights from Thailand to Washington, D.C.
Explore the most affordable flight options available from Thailand to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This SAUDIA deal was found by Cheapflights users on 3/31. 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.
Fri 6/203:25 pmBKK - IAD
1 stop59h 20mSAUDIA
Tue 7/226:50 pmIAD - BKK
1 stop66h 20mSAUDIA
Deal found 3/31$983
This Gotogate deal was found by Cheapflights users on 4/1. 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.
Sun 4/273:25 pmBKK - IAD
2 stops59h 20mMultiple Airlines
Fri 5/21:30 pmIAD - BKK
2 stops39h 25mMultiple Airlines
Deal found 4/1$996
This Ovago deal was found by Cheapflights users on 3/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/209:45 amBKK - DCA
2 stops46h 07mJapan Airlines
Mon 6/239:29 amDCA - BKK
2 stops42h 41mJapan Airlines
Deal found 3/31$1,002
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Sun 6/229:35 amBKK - IAD
1 stop41h 10mUnited Airlines
Tue 7/228:35 amIAD - BKK
2 stops28h 20mUnited Airlines
Deal found 4/1$1,015
This SWISS deal was found by Cheapflights users on 4/1. 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.
Thu 5/1512:50 pmBKK - IAD
1 stop37h 25mSWISS
Mon 6/28:45 pmIAD - BKK
1 stop26h 00mSWISS
Deal found 4/1$1,047
This Lufthansa deal was found by Cheapflights users on 4/1. 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.
Wed 5/289:10 pmCNX - IAD
2 stops28h 25mMultiple Airlines
Wed 6/1110:20 pmIAD - CNX
2 stops35h 10mMultiple Airlines
Deal found 4/1$1,065
This BYOjet deal was found by Cheapflights users on 4/1. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/21:30 amBKK - IAD
1 stop29h 00mAir China
Sat 5/311:00 pmIAD - BKK
1 stop32h 10mAir China
Deal found 4/1$1,071
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Thu 4/247:00 amBKK - DCA
2 stops25h 30mUnited Airlines
Tue 5/67:00 amDCA - BKK
2 stops34h 35mUnited Airlines
Deal found 4/1$1,091
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Sun 4/2710:05 pmBKK - DCA
2 stops33h 48mAmerican Airlines
Fri 5/26:05 pmDCA - BKK
2 stops48h 45mAmerican Airlines
Deal found 4/1$1,112
This Air Canada deal was found by Cheapflights users on 4/1. 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.
Tue 11/188:35 amBKK - DCA
2 stops37h 44mAir Canada
Sat 11/294:00 pmDCA - BKK
2 stops50h 15mAir Canada
Deal found 4/1$1,117
This Mytrip deal was found by Cheapflights users on 4/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/76:40 pmBKK - BWI
2 stops35h 59mMultiple Airlines
Wed 5/142:59 pmBWI - BKK
3 stops34h 11mMultiple Airlines
Deal found 4/1$1,139
This Air Canada deal was found by Cheapflights users on 4/1. 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.
Tue 11/188:35 amBKK - IAD
2 stops24h 30mAir Canada
Sat 11/293:55 pmIAD - BKK
2 stops50h 20mAir Canada
Deal found 4/1$1,164

Cheapflights Fare Finder

Customize your flight search to find flights from Thailand 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 April 2, 2025.
Use the filters below to find and compare flights from Thailand to Washington, D.C. that are best for you.

Fly from

Thailand

Fly to

Washington, D.C.

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 6/20

3:25 pm-3:45 pm

1 stop59h 20m

Washington, D.C. Dulles Intl

Tue 7/22

6:50 pm-12:10 am

1 stop66h 20m

$983

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 4/27

3:25 pm-3:45 pm

2 stops59h 20m

Washington, D.C. Dulles Intl

Fri 5/2

1:30 pm-3:55 pm

2 stops39h 25m

$996

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 5/20

9:45 am-8:52 pm

2 stops46h 07m

Washington, D.C. Reagan-National

Mon 6/23

9:29 am-3:10 pm

2 stops42h 41m

$1,002

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 6/22

9:35 am-3:45 pm

1 stop41h 10m

Washington, D.C. Dulles Intl

Tue 7/22

8:35 am-11:55 pm

2 stops28h 20m

$1,015

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 5/15

12:50 pm-3:15 pm

1 stop37h 25m

Washington, D.C. Dulles Intl

Mon 6/2

8:45 pm-9:45 am

1 stop26h 00m

$1,047

Chiang MaiWashington, D.C.

CNX - IAD

CNXIAD

Chiang Mai

Wed 5/28

9:10 pm-2:35 pm

2 stops28h 25m

Washington, D.C. Dulles Intl

Wed 6/11

10:20 pm-8:30 pm

2 stops35h 10m

$1,065

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 5/2

1:30 am-7:30 pm

1 stop29h 00m

Washington, D.C. Dulles Intl

Sat 5/3

11:00 pm-6:10 pm

1 stop32h 10m

$1,071

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 4/24

7:00 am-9:30 pm

2 stops25h 30m

Washington, D.C. Reagan-National

Tue 5/6

7:00 am-4:35 am

2 stops34h 35m

$1,091

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 4/27

10:05 pm-8:53 pm

2 stops33h 48m

Washington, D.C. Reagan-National

Fri 5/2

6:05 pm-5:50 am

2 stops48h 45m

$1,112

BangkokBaltimore

BKK - BWI

BKKBWI

Bangkok Suvarnabhumi

Wed 5/7

6:40 pm-7:39 pm

2 stops35h 59m

Baltimore/Washington

Wed 5/14

2:59 pm-12:10 pm

3 stops34h 11m

$1,139

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Thailand to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Thailand 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 Thailand to Washington, D.C.

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

Currently, August is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $241). Flying from Thailand 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 TH to WAS?

Find hourly flight availability from Thailand 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 April 2, 2025.

When flying from Thailand 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.

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 April 2, 2025.
Get a feel of what it's like to fly with Korean Air, Japan Airlines and ANA from Thailand to Washington, D.C. by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,052 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,052 reviews
Korean Air
8.4
Very good
1,052 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very good
1,440 reviews
Korean Air
8.4
Very good
1,052 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very good
830 reviews
Korean Air
8.4
Very good
1,052 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
440 reviews
Korean Air
8.4
Very good
1,052 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very good
1,286 reviews
Korean Air
8.4
Very good
1,052 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Thailand 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 to fly from Thailand 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 $574. SAUDIA flights start at $625 while deals on Air China start at $703 one-way.

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

    The most popular flight routes from Thailand to Washington, D.C. are Bangkok Suvarnabhumi - Washington, D.C. Dulles Intl, Bangkok Suvarnabhumi - Baltimore/Washington and Bangkok Suvarnabhumi - Washington, D.C. Reagan-National.

  • Can I find deals for flights from Thailand to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Thailand to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Thailand 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 Thailand to Washington, D.C..

  • Can I find deals for business class flights from Thailand to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Thailand 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 Thailand to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Thailand to Washington, D.C. (average of $241). Flying from Thailand 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 Thailand?

Book flights to Thailand if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Tysons
Springfield
Rockville
Fredericksburg
Woodbridge
Gaithersburg
Linthicum Heights
Silver Spring
Falls Church
Laurel
Easton
Herndon
Bowie
Gettysburg
National Harbor
Oxon Hill
Reston

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 Thailand to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Hyderabad to Dulles Intl flights
Incheon Intl to Dulles Intl flights
New Delhi to Dulles Intl flights
Hyderabad to Reagan-National flights
Mumbai to Dulles Intl flights
Haneda to Dulles Intl flights
New Delhi to Reagan-National flights
Bangalore to Dulles Intl flights
Suvarnabhumi to Dulles Intl flights
Taiwan Taoyuan Intl to Dulles Intl flights
Manila to Dulles Intl flights
Bangalore to Reagan-National flights
Mumbai to Reagan-National flights
Ahmedabad to Dulles Intl flights
Narita to Dulles Intl flights
Incheon Intl to Reagan-National flights
Chennai to Dulles Intl flights
Lahore to Dulles Intl flights
Ho Chi Minh City to Dulles Intl flights
Chennai to Reagan-National flights
Itami to Dulles Intl flights
Kansai Intl to Dulles Intl flights
Kansai Intl to Reagan-National flights
Taiwan Taoyuan Intl to Reagan-National flights
Dhaka to Dulles Intl flights
Haneda to Reagan-National flights
Manila to Reagan-National flights
Kuala Lumpur Intl to Dulles Intl flights
Hong Kong to Reagan-National flights
Kathmandu to Dulles Intl flights
Suvarnabhumi to Reagan-National flights
Hong Kong to Dulles Intl flights
Narita to Reagan-National flights
Karachi to Dulles Intl flights
Colombo to Dulles Intl flights
Singapore to Dulles Intl flights
Kolkata to Dulles Intl flights
Capital to Dulles Intl flights
Kathmandu to Reagan-National flights
Ahmedabad to Reagan-National flights
Islamabad to Dulles Intl flights
Ho Chi Minh City to Reagan-National flights
Yerevan to Dulles Intl flights
Kuala Lumpur Intl to Reagan-National flights

Top 8 airlines flying from Thailand to Washington, D.C.

Discover the top 8 airlines that operate flights from Thailand 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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$854Average$1,306FlexibilityNo cancel feeOn-timeN/A
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%

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.