Bangkok

$393+ Cheap flights from Washington, D.C. (WAS) to Bangkok

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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BKK
Feb 27 — Mar 61
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Cheap flight deals from Washington, D.C. to Bangkok

Cheapest flights from Washington, D.C. to Bangkok
Explore the most affordable flight options available from Washington, D.C. to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Etihad Airways deal was found by Cheapflights users on 1/26. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/302:35 pm
IAD
-
BKK
1 stop28h 35m
Etihad Airways
Mon 2/92:55 am
BKK
-
IAD
1 stop42h 10m
Etihad Airways
Deal found 1/26$859
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/43:10 pm
IAD
-
BKK
1 stop28h 05m
Etihad Airways
Thu 4/239:45 am
BKK
-
IAD
1 stop35h 00m
Etihad Airways
Deal found 1/28$860
This Gotogate deal was found by Cheapflights users on 1/27. 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.
Fri 3/133:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
Fri 3/208:40 pm
BKK
-
IAD
1 stop24h 25m
Etihad Airways
Deal found 1/27$861
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:20 pm
IAD
-
BKK
1 stop28h 50m
Turkish Airlines
Thu 9/310:45 pm
BKK
-
IAD
1 stop23h 50m
Turkish Airlines
Deal found 1/28$862
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/183:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
Fri 3/278:05 am
BKK
-
IAD
2 stops60h 40m
Etihad Airways
Deal found 1/27$863
This KAYAK deal was found by Cheapflights users on 1/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/42:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
Fri 2/202:40 pm
BKK
-
IAD
1 stop30h 25m
Etihad Airways
Deal found 1/27$870
This FlightHub deal was found by Cheapflights users on 1/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/129:05 pm
IAD
-
BKK
1 stop35h 20m
Qatar Airways
Wed 3/182:00 am
BKK
-
IAD
1 stop25h 55m
Qatar Airways
Deal found 1/26$872
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:04 pm
BWI
-
BKK
2 stops34h 36m
Multiple Airlines
Wed 4/295:50 pm
BKK
-
BWI
2 stops46h 54m
Multiple Airlines
Deal found 1/28$873
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/113:10 pm
IAD
-
BKK
1 stop28h 05m
Etihad Airways
Sun 4/199:45 am
BKK
-
IAD
1 stop35h 00m
Etihad Airways
Deal found 1/27$874
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:16 pm
BWI
-
BKK
2 stops29h 44m
Multiple Airlines
Wed 5/201:10 pm
BKK
-
BWI
2 stops28h 18m
Multiple Airlines
Deal found 1/26$875
This Justfly.com deal was found by Cheapflights users on 1/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/33:10 pm
IAD
-
BKK
1 stop28h 35m
Etihad Airways
Sat 5/29:55 am
BKK
-
IAD
2 stops58h 50m
Etihad Airways
Deal found 1/27$876
This Mytrip deal was found by Cheapflights users on 1/26. 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.
Tue 2/242:35 pm
IAD
-
BKK
1 stop20h 50m
Etihad Airways
Sat 3/212:55 am
BKK
-
IAD
1 stop42h 10m
Etihad Airways
Deal found 1/26$877

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Bangkok (TH1). 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 January 28, 2026.

Round-trip from

$859
(oojo)

One-way from

$393
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,054
From Washington, D.C. (WAS) to Bangkok
One-way flight from Washington, D.C. (WAS) to Bangkok
Highest demand for flights based on searches. 7% potential increase in price ($97 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
Average for round-trip flights in January 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Bangkok 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 January 28, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Bangkok that are best for you.

Fly from

Washington, D.C.

Fly to

Bangkok

Route

Depart

Return

Price

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 2/16

7:35 am-12:55 am

2 stops29h 20m

Bangkok Suvarnabhumi

Tue 6/9

11:30 pm-11:28 pm

2 stops34h 58m

$930

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 4/14

7:14 pm-11:40 pm

2 stops41h 26m

Bangkok Suvarnabhumi

Wed 4/29

9:50 am-11:55 pm

2 stops25h 05m

$930

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 7/16

12:15 pm-4:35 am

1 stop29h 20m

Bangkok Suvarnabhumi

Thu 7/23

9:35 am-6:03 am

2 stops31h 28m

$931

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 7/20

10:08 am-4:35 am

2 stops31h 27m

Bangkok Suvarnabhumi

Thu 7/30

9:35 am-7:13 am

2 stops32h 38m

$935

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 4/13

7:27 pm-9:35 am

2 stops27h 08m

Bangkok Suvarnabhumi

Mon 4/20

9:35 am-7:27 am

2 stops32h 52m

$935

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 4/13

7:27 pm-9:35 am

2 stops27h 08m

Bangkok Suvarnabhumi

Wed 4/29

7:00 am-1:25 am

2 stops29h 25m

$938

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 5/5

9:00 am-11:55 pm

2 stops27h 55m

Bangkok Suvarnabhumi

Wed 5/20

7:00 am-9:05 pm

2 stops25h 05m

$941

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 4/14

3:30 pm-9:35 am

3 stops31h 05m

Bangkok Suvarnabhumi

Thu 4/30

7:00 am-9:31 pm

2 stops25h 31m

$943

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 2/25

3:30 pm-11:25 am

3 stops31h 55m

Bangkok Suvarnabhumi

Tue 3/10

4:55 pm-9:29 am

3 stops27h 34m

$950

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 3/4

12:47 pm-11:25 am

3 stops34h 38m

Bangkok Suvarnabhumi

Wed 3/18

4:55 pm-8:51 am

3 stops26h 56m

$950

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Bangkok

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

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Bangkok. Price data was last updated on January 23, 2026.

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Bangkok, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Bangkok (average of $629). Flying from Washington, D.C. to Bangkok in June is currently the most expensive (average of $1,090). 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 much does it cost to fly round-trip from Washington, D.C. to Bangkok?

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated January 28, 2026.
Peruse reviews from past customers who have flown with Qatar Airways, United Airlines, and Etihad Airways from Washington, D.C. to Bangkok to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.5

Entertainment

7.4

Food

7.3

Overall

7.4

Crew

7.9

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Boarding

7.5

Entertainment

7.4

Food

7.3

Overall

7.4

Crew

7.9

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Boarding

7.5

Entertainment

7.4

Food

7.3

Overall

7.4

Crew

7.9

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Boarding

7.5

Entertainment

7.4

Food

7.3

Overall

7.4

Crew

7.9

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Boarding

7.5

Entertainment

7.4

Food

7.3

Overall

7.4

Crew

7.9

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Boarding

7.5

Entertainment

7.4

Food

7.3

Overall

7.4

Crew

7.9

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Bangkok. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Washington, D.C. to Bangkok?

    Delta, United Airlines, and Korean Air can get you from Washington, D.C. to Bangkok in just under 27h 40m. Your travel time can differ by up to 1h 40m. There are 8774 mi between Washington, D.C. and Bangkok. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Washington, D.C. to Bangkok round-trip?

    Flying on United Airlines is currently your cheapest option to Bangkok, with prices starting at $216. Additional round-trip tickets that might be worth considering are offered by Air China and Air Canada, with the lowest prices starting at $565 and $597, respectively. Users have found that United Airlines is 81% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with Korean Air, which is currently one of the cheapest options available, starting at $394. Etihad Airways flights start at $401 while deals on Turkish Airlines start at $423 one-way.

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

  • Where are the most common layover locations when flying from Washington, D.C. to Bangkok?

  • What are some popular points of interest to see during a layover in Abu Dhabi?

    The majority of Abu Dhabi visitors spend their time at Emirates Palace, Emirates Park Zoo, and Ferrari World Abu Dhabi. Emirates Palace, Emirates Park Zoo, and Ferrari World Abu Dhabi can be visited by traveling about 21.1 mi, 7.9 mi, and 4.5 mi respectively from Abu Dhabi Zayed Intl. Travelers in need of a car in Abu Dhabi can rent one for about $25 per day.

  • What are points of interest worth seeing during a layover in Istanbul?

    Taksim Square, Laleli Camii, and Beyazit Meydani are the most popular attractions in Istanbul if you're in need of something to do during your layover. Taksim Square, Laleli Camii and Beyazit Meydani are located about 20.8 mi, 21.5 mi, and 21.7 mi, respectively from Istanbul if you are interested in checking them out. Travelers in need of a car in Istanbul can rent one for about $37 per day.

  • Where are the least popular layover locations for Washington, D.C. to Bangkok flights?

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Bangkok.

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

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

    Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Bangkok (average of $629). Flying from Washington, D.C. to Bangkok in June is currently the most expensive (average of $1,090). 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

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

Top 10 airlines flying from Washington, D.C. to Bangkok

Discover the top 10 airlines that operate flights from Washington, D.C. to Bangkok. 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$216Average$1,114FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$565Average$848FlexibilityNo cancel feeOn-time67%
Air CanadaCheapest$597Average$1,566FlexibilityNo cancel feeOn-time67%
IndiGoCheapest$639Average$1,172FlexibilityNo cancel feeOn-time80%
Air IndiaCheapest$714Average$854FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$787Average$960FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$802Average$1,075FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$818Average$1,129FlexibilityNo cancel feeOn-time68%
Turkish AirlinesCheapest$849Average$1,187FlexibilityNo cancel feeOn-time77%
ANACheapest$896Average$1,194FlexibilityNo cancel feeOn-time80%

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