HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Thailand

$472+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BKK
Jul 28 — Aug 41
Tue 7/28
Tue 8/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Thailand 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 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 June 28, 2026.

This Korean Air deal was found by Cheapflights users on 6/23. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:50 am
IAD
-
CNX
1 stop23h 05m
Korean Air
Sun 11/1512:15 am
CNX
-
IAD
1 stop21h 35m
Korean Air
Deal found 6/23$967
This Korean Air deal was found by Cheapflights users on 6/24. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:50 am
IAD
-
CNX
1 stop23h 05m
Korean Air
Wed 12/2312:15 am
CNX
-
IAD
1 stop21h 35m
Korean Air
Deal found 6/24$977
This deal was found by Cheapflights users on 6/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:10 pm
IAD
-
HKT
1 stop21h 40m
Etihad Airways
Tue 10/209:20 pm
HKT
-
IAD
1 stop23h 25m
Etihad Airways
Deal found 6/24$977
This Korean Air deal was found by Cheapflights users on 6/24. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:59 pm
IAD
-
CNX
2 stops38h 56m
Korean Air
Mon 12/2112:15 am
CNX
-
IAD
1 stop21h 35m
Korean Air
Deal found 6/24$982
This SmartFares deal was found by Cheapflights users on 6/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:10 pm
IAD
-
HKT
1 stop40h 10m
Etihad Airways
Wed 9/23:20 pm
HKT
-
IAD
1 stop29h 25m
Etihad Airways
Deal found 6/28$982
This oojo deal was found by Cheapflights users on 6/24. 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.
Tue 10/273:35 pm
IAD
-
HKT
1 stop27h 40m
Etihad Airways
Mon 11/162:40 am
HKT
-
IAD
1 stop42h 25m
Etihad Airways
Deal found 6/24$983
This oojo deal was found by Cheapflights users on 6/26. 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.
Mon 9/143:10 pm
IAD
-
HKT
1 stop40h 10m
Etihad Airways
Mon 9/289:25 am
HKT
-
IAD
1 stop35h 20m
Etihad Airways
Deal found 6/26$985
This Delta deal was found by Cheapflights users on 6/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:39 am
DCA
-
BKK
2 stops26h 56m
Delta
Thu 12/109:40 am
BKK
-
DCA
2 stops24h 35m
Delta
Deal found 6/25$988
This Delta deal was found by Cheapflights users on 6/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:00 am
IAD
-
BKK
2 stops28h 45m
Delta
Thu 12/109:40 am
BKK
-
IAD
2 stops26h 40m
Delta
Deal found 6/25$988
This oojo deal was found by Cheapflights users on 6/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:00 pm
IAD
-
BKK
1 stop28h 55m
Qatar Airways
Sat 10/312:00 am
BKK
-
IAD
1 stop25h 55m
Qatar Airways
Deal found 6/22$991
This Korean Air deal was found by Cheapflights users on 6/24. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:00 am
IAD
-
CNX
2 stops27h 55m
Korean Air
Tue 12/2212:15 am
CNX
-
IAD
2 stops28h 02m
Korean Air
Deal found 6/24$993
This Korean Air deal was found by Cheapflights users on 6/25. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:59 pm
IAD
-
BKK
2 stops37h 31m
Korean Air
Wed 11/2512:55 am
BKK
-
IAD
2 stops27h 22m
Korean Air
Deal found 6/25$993

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 June 28, 2026.

Round-trip from

$967
(Korean Air)

One-way from

$472
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,449
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. 10% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($53 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 28, 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
Quickest round-trip

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 11/1

11:50 am-10:55 pm

1 stop23h 05m

Chiang Mai

Sun 11/15

12:15 am-9:50 am

1 stop21h 35m

$967

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Thu 9/10

3:10 pm-6:40 am

1 stop28h 30m

Phuket City

Sun 9/13

3:20 am-9:45 am

1 stop41h 25m

$1,022

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 9/28

3:10 pm-11:50 pm

1 stop21h 40m

Phuket City

Thu 10/1

9:20 pm-9:45 am

1 stop23h 25m

$1,023

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 9/9

1:15 pm-1:05 am

1 stop24h 50m

Bangkok Suvarnabhumi

Wed 9/23

11:30 pm-4:17 pm

2 stops27h 47m

$1,024

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 11/26

7:00 am-11:20 pm

2 stops28h 20m

Bangkok Suvarnabhumi

Thu 12/10

11:15 pm-12:44 pm

2 stops25h 29m

$1,028

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sat 11/7

9:00 am-12:45 am

2 stops27h 45m

Bangkok Suvarnabhumi

Wed 11/11

11:15 pm-2:38 pm

2 stops27h 23m

$1,028

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Fri 10/2

10:10 am-1:05 am

2 stops27h 55m

Bangkok Suvarnabhumi

Sat 10/31

11:15 pm-1:44 pm

2 stops25h 29m

$1,028

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 11/26

6:00 am-11:20 pm

2 stops29h 20m

Bangkok Suvarnabhumi

Thu 12/10

11:15 pm-11:59 am

2 stops24h 44m

$1,028

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 9/23

8:00 am-9:45 pm

2 stops26h 45m

Bangkok Suvarnabhumi

Mon 9/28

11:30 pm-2:12 pm

2 stops25h 42m

$1,028

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 10/27

7:00 am-10:10 pm

2 stops52h 10m

Phuket City

Tue 11/17

11:40 pm-9:50 am

1 stop22h 10m

$1,072

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/23

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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, August is the cheapest month in which you can book a flight from Washington, D.C. to Thailand (average of $596). Flying from Washington, D.C. to Thailand in December is currently the most expensive (average of $1,586). 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 far ahead should I book a flight from Washington, D.C. to Thailand?

The best time to book flights from Washington, D.C. to Thailand is 60 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.

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 June 28, 2026.
Get a feel of what it's like to fly with Turkish Airlines,United Airlines, andQatar Airways 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.
Turkish Airlines
7.4
Good
4,425 reviews

Food

7.5

Overall

7.4

Comfort

7.3

Boarding

7.3

Crew

7.8

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent
Turkish Airlines
7.4
Good
4,425 reviews
Turkish Airlines
7.4
Good
4,425 reviews

Food

7.5

Overall

7.4

Comfort

7.3

Boarding

7.3

Crew

7.8

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent
United Airlines
7.4
Good
9,901 reviews
Turkish Airlines
7.4
Good
4,425 reviews

Food

7.5

Overall

7.4

Comfort

7.3

Boarding

7.3

Crew

7.8

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent
Qatar Airways
7.3
Good
3,736 reviews
Turkish Airlines
7.4
Good
4,425 reviews

Food

7.5

Overall

7.4

Comfort

7.3

Boarding

7.3

Crew

7.8

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent
Etihad Airways
7.3
Good
1,467 reviews
Turkish Airlines
7.4
Good
4,425 reviews

Food

7.5

Overall

7.4

Comfort

7.3

Boarding

7.3

Crew

7.8

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent
JetBlue
7.1
Good
3,014 reviews
Turkish Airlines
7.4
Good
4,425 reviews

Food

7.5

Overall

7.4

Comfort

7.3

Boarding

7.3

Crew

7.8

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent

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?

    Korean Air, Etihad Airways, and Delta can get you from Washington, D.C. to Thailand in just under 23h 05m. Your travel time can differ by up to 5h 25m. The distance from Washington, D.C. to Thailand is about 8436 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 $398 on Korean Air. Other airlines that offer cheap prices include Etihad Airways from $401 and AIR PREMIA from $402 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 Washington, D.C. Reagan-National - Bangkok Suvarnabhumi or Baltimore/Washington - 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, August is the cheapest month in which you can book a flight from Washington, D.C. to Thailand (average of $596). Flying from Washington, D.C. to Thailand in December is currently the most expensive (average of $1,586). 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 June 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$732Average$903FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$741Average$1,111FlexibilityNo cancel feeOn-time81%
AIR PREMIACheapest$784Average$870FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$786Average$1,074FlexibilityNo cancel feeOn-time75%
DeltaCheapest$798Average$1,169FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$815Average$1,176FlexibilityNo cancel feeOn-time68%
Turkish AirlinesCheapest$833Average$1,088FlexibilityNo cancel feeOn-time77%
Alaska AirlinesCheapest$878Average$1,157FlexibilityNo cancel feeOn-time75%
ANACheapest$893Average$1,261FlexibilityNo cancel feeOn-time80%
JetBlueCheapest$900Average$2,068FlexibilityNo cancel feeOn-time62%

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.
Site
©2026 Cheapflights