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$428+ Cheap flights from Washington, D.C. (WAS) to Thailand

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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BKK
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Thailand

Cheapest flights from Washington, D.C. to Thailand
Explore the most affordable flight options available from Washington, D.C. to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sun 8/91:20 pm
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Thu 8/2710:45 pm
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Deal found 3/20$836
This AIR PREMIA deal was found by Cheapflights users on 3/20. 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 PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/91:20 pm
IAD
-
BKK
1 stop44h 50m
AIR PREMIA
Tue 8/2510:45 pm
BKK
-
IAD
1 stop23h 05m
AIR PREMIA
Deal found 3/20$837
This Gotogate deal was found by Cheapflights users on 3/23. 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.
Tue 5/123:10 pm
IAD
-
BKK
1 stop28h 35m
Etihad Airways
Wed 5/205:50 pm
BKK
-
IAD
2 stops50h 55m
Etihad Airways
Deal found 3/23$838
This CheapTickets deal was found by Cheapflights users on 3/23. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/92:05 pm
IAD
-
BKK
1 stop29h 40m
Etihad Airways
Sat 4/183:55 pm
BKK
-
IAD
1 stop28h 50m
Etihad Airways
Deal found 3/23$839
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
Sat 4/112:05 pm
IAD
-
BKK
1 stop29h 25m
Etihad Airways
Tue 4/219:00 pm
BKK
-
IAD
1 stop23h 45m
Etihad Airways
Deal found 3/24$841
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
Fri 4/102:05 pm
IAD
-
BKK
1 stop29h 25m
Etihad Airways
Thu 4/169:00 pm
BKK
-
IAD
1 stop23h 45m
Etihad Airways
Deal found 3/23$842
This Etihad Airways deal was found by Cheapflights users on 3/22. 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.
Sun 3/292:20 pm
IAD
-
BKK
1 stop41h 15m
Etihad Airways
Wed 4/299:40 am
BKK
-
IAD
1 stop35h 05m
Etihad Airways
Deal found 3/22$843
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
Wed 4/82:05 pm
IAD
-
BKK
1 stop41h 35m
Etihad Airways
Sun 4/199:00 pm
BKK
-
IAD
1 stop23h 45m
Etihad Airways
Deal found 3/24$844
This deal was found by Cheapflights users on 3/23. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/113:10 pm
IAD
-
BKK
1 stop21h 40m
Etihad Airways
Tue 5/199:00 pm
BKK
-
IAD
1 stop23h 45m
Etihad Airways
Deal found 3/23$845
This KAYAK deal was found by Cheapflights users on 3/22. 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.
Sun 4/193:10 pm
IAD
-
BKK
1 stop28h 20m
Etihad Airways
Fri 5/293:55 pm
BKK
-
IAD
1 stop28h 50m
Etihad Airways
Deal found 3/22$846
This FlightHub deal was found by Cheapflights users on 3/23. 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.
Tue 9/83:10 pm
IAD
-
BKK
1 stop33h 40m
Etihad Airways
Tue 9/159:45 am
BKK
-
IAD
1 stop35h 00m
Etihad Airways
Deal found 3/23$847
This oojo deal was found by Cheapflights users on 3/24. 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 3/252:20 pm
IAD
-
BKK
1 stop41h 15m
Etihad Airways
Tue 4/78:50 pm
BKK
-
IAD
1 stop24h 35m
Etihad Airways
Deal found 3/24$848

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

Keep the following information in mind while searching for Washington, D.C. to Thailand flight deals. Data was last updated March 24, 2026.

Round-trip from

$836
(Kiwi.com)

One-way from

$428
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$1,158
From Washington, D.C. (WAS) to Thailand
Search Deals
One-way flight from Washington, D.C. (WAS) to Thailand
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Thailand 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 March 24, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Mon 5/4

6:59 pm-10:20 am

2 stops28h 21m

Chiang Mai

Mon 5/11

11:20 am-9:59 pm

2 stops45h 39m

$1,144

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Wed 9/2

1:15 am-7:10 pm

2 stops30h 55m

Chiang Mai

Mon 9/7

11:35 am-10:00 pm

1 stop21h 25m

$1,170

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Sun 9/13

6:19 am-5:20 pm

2 stops24h 01m

Phuket City

Sun 9/20

6:20 pm-11:58 pm

2 stops40h 38m

$1,203

Washington, D.C.Chiang Mai

DCA - CNX

DCACNX

Washington, D.C. Reagan-National

Sun 8/9

6:30 am-10:20 am

2 stops40h 50m

Chiang Mai

Thu 9/3

11:20 am-4:08 pm

2 stops39h 48m

$1,216

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Wed 9/2

10:00 am-11:35 pm

2 stops26h 35m

Bangkok Suvarnabhumi

Sun 10/18

11:30 pm-1:04 pm

2 stops24h 34m

$1,233

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 9/3

7:40 am-11:35 pm

2 stops28h 55m

Bangkok Suvarnabhumi

Thu 10/15

9:50 am-11:29 pm

2 stops24h 39m

$1,242

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 5/11

6:35 pm-9:35 am

2 stops28h 00m

Bangkok Suvarnabhumi

Tue 5/19

3:45 pm-10:02 am

3 stops29h 17m

$1,249

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 4/19

10:35 pm-9:35 am

3 stops48h 00m

Bangkok Suvarnabhumi

Thu 5/7

3:45 pm-11:34 pm

3 stops42h 49m

$1,250

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 4/20

10:55 am-8:00 pm

1 stop22h 05m

Phuket City

Mon 4/27

10:20 am-8:40 am

2 stops33h 20m

$1,253

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 4/21

10:55 am-6:30 pm

2 stops44h 35m

Phuket City

Mon 4/27

11:45 pm-8:40 am

1 stop43h 55m

$1,253

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

Have a flexible travel schedule? Discover the best time to fly to Thailand 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 Thailand

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

Currently, June is the cheapest month in which you can book a flight from Washington, D.C. to Thailand (average of $605). Flying from Washington, D.C. to Thailand in July is currently the most expensive (average of $873). 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 WAS to TH?

Find hourly flight availability from Washington, D.C. to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 24, 2026.

It’s optimal to fly from Washington, D.C. to Thailand in the evening. By choosing this option you can save up to 37% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Washington, D.C. to Thailand?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Thailand. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Washington, D.C. to Thailand flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated March 24, 2026.
Get a feel of what it's like to fly with Qatar Airways,Turkish Airlines, andUnited Airlines from Washington, D.C. to Thailand by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,732 reviews

Food

7.3

Crew

7.9

Comfort

7.4

Entertainment

7.3

Boarding

7.5

Overall

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
Qatar Airways
7.4
Good
3,732 reviews
Qatar Airways
7.4
Good
3,732 reviews

Food

7.3

Crew

7.9

Comfort

7.4

Entertainment

7.3

Boarding

7.5

Overall

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
Turkish Airlines
7.4
Good
4,275 reviews
Qatar Airways
7.4
Good
3,732 reviews

Food

7.3

Crew

7.9

Comfort

7.4

Entertainment

7.3

Boarding

7.5

Overall

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
United Airlines
7.4
Good
9,478 reviews
Qatar Airways
7.4
Good
3,732 reviews

Food

7.3

Crew

7.9

Comfort

7.4

Entertainment

7.3

Boarding

7.5

Overall

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
Etihad Airways
7.3
Good
1,429 reviews
Qatar Airways
7.4
Good
3,732 reviews

Food

7.3

Crew

7.9

Comfort

7.4

Entertainment

7.3

Boarding

7.5

Overall

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
JetBlue
7.2
Good
2,905 reviews
Qatar Airways
7.4
Good
3,732 reviews

Food

7.3

Crew

7.9

Comfort

7.4

Entertainment

7.3

Boarding

7.5

Overall

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 Thailand. 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 Thailand?

    EVA Air, Korean Air, and Delta can get you from Washington, D.C. to Thailand in just under 26h 35m. Your travel time can differ by up to 4h 20m. The distance from Washington, D.C. to Thailand is about 8774 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $394 on IndiGo. Other airlines that offer cheap prices include Korean Air from $394 and Etihad Airways from $401 one-way.

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

    The most popular route from Washington, D.C. to Thailand is Washington, D.C. Dulles Intl - Bangkok Suvarnabhumi. You may also consider Baltimore/Washington - Bangkok Suvarnabhumi or Washington, D.C. Reagan-National - Bangkok Suvarnabhumi.

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

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

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

    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 Thailand.

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

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

    Currently, June is the cheapest month in which you can book a flight from Washington, D.C. to Thailand (average of $605). Flying from Washington, D.C. to Thailand in July is currently the most expensive (average of $873). 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 Thailand

Discover the top 10 airlines that operate flights from Washington, D.C. to Thailand. 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$565Average$864FlexibilityNo cancel feeOn-time67%
DeltaCheapest$664Average$1,140FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$673Average$1,134FlexibilityNo cancel feeOn-time81%
AIR PREMIACheapest$784Average$873FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$786Average$1,039FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$818Average$1,171FlexibilityNo cancel feeOn-time68%
Turkish AirlinesCheapest$835Average$1,137FlexibilityNo cancel feeOn-time77%
ANACheapest$893Average$1,134FlexibilityNo cancel feeOn-time80%
JetBlueCheapest$900Average$2,043FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$920Average$1,313FlexibilityNo cancel feeOn-time75%

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