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$378+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BKK
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$823
(Mytrip)

One-way from

$378
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$998
From Washington, D.C. (WAS) to Thailand
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One-way flight from Washington, D.C. (WAS) to Thailand
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($171 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/11. 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.
Mon 10/275:35 amBWI - BKK
2 stops28h 50mMultiple Airlines
Sun 11/910:55 pmBKK - BWI
2 stops32h 24mMultiple Airlines
Deal found 9/11$802
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/245:45 amBWI - BKK
2 stops32h 20mMultiple Airlines
Fri 9/262:35 amBKK - BWI
2 stops39h 26mMultiple Airlines
Deal found 9/10$825
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Mon 11/35:35 amBWI - BKK
2 stops27h 50mMultiple Airlines
Sun 11/1610:55 pmBKK - BWI
2 stops32h 24mMultiple Airlines
Deal found 9/10$833
This Mytrip deal was found by Cheapflights users on 9/11. 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.
Mon 10/275:35 amBWI - BKK
2 stops28h 50mMultiple Airlines
Mon 11/310:55 pmBKK - BWI
3 stops35h 34mMultiple Airlines
Deal found 9/11$837
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Sun 9/1410:05 pmIAD - BKK
1 stop22h 15mEtihad Airways
Tue 9/169:30 amBKK - IAD
1 stop41h 40mEtihad Airways
Deal found 9/10$849
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Sat 9/1310:05 pmIAD - BKK
1 stop38h 50mEtihad Airways
Sat 9/202:55 amBKK - IAD
1 stop24h 15mEtihad Airways
Deal found 9/10$850
This Mytrip deal was found by Cheapflights users on 9/11. 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 11/119:10 pmIAD - BKK
1 stop22h 00mEtihad Airways
Tue 11/182:55 amBKK - IAD
1 stop24h 55mEtihad Airways
Deal found 9/11$851
This oojo deal was found by Cheapflights users on 9/11. 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 10/139:00 pmIAD - BKK
1 stop23h 20mQatar Airways
Mon 11/178:30 pmBKK - IAD
1 stop31h 25mQatar Airways
Deal found 9/11$855
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Sun 11/1610:40 amIAD - BKK
1 stop20h 45mQatar Airways
Mon 2/162:00 amBKK - IAD
1 stop25h 55mQatar Airways
Deal found 9/10$857
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Fri 11/71:30 pmIAD - BKK
1 stop31h 10mTurkish Airlines
Wed 11/1910:10 amBKK - IAD
1 stop37h 35mTurkish Airlines
Deal found 9/11$859
This oojo deal was found by Cheapflights users on 9/10. 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 11/169:10 pmIAD - BKK
1 stop38h 10mEtihad Airways
Sat 12/132:55 amBKK - IAD
1 stop24h 55mEtihad Airways
Deal found 9/10$860
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Mon 10/205:35 amBWI - BKK
2 stops29h 50mMultiple Airlines
Mon 10/271:20 pmBKK - BWI
2 stops28h 15mMultiple Airlines
Deal found 9/10$862

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 September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Thailand that are best for you.

Fly from

Washington, D.C.

Fly to

Thailand

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 10/14

10:05 pm-7:20 am

1 stop22h 15m

Bangkok Suvarnabhumi

Wed 11/12

8:50 pm-3:50 pm

1 stop31h 00m

$870

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 10/14

10:05 pm-6:50 pm

1 stop33h 45m

Bangkok Suvarnabhumi

Sat 11/8

2:55 am-3:50 pm

1 stop24h 55m

$870

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 10/15

10:05 pm-7:20 am

1 stop22h 15m

Bangkok Suvarnabhumi

Mon 11/10

8:50 pm-3:50 pm

1 stop31h 00m

$870

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 11/17

8:05 pm-6:25 pm

1 stop34h 20m

Bangkok Suvarnabhumi

Wed 2/18

6:55 pm-3:55 pm

1 stop33h 00m

$903

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sun 10/26

10:10 pm-11:35 pm

1 stop38h 25m

Phuket City

Sun 11/2

9:05 am-4:50 pm

1 stop42h 45m

$909

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Mon 10/27

10:10 pm-6:15 am

1 stop21h 05m

Phuket City

Mon 11/3

9:00 pm-3:50 pm

1 stop30h 50m

$917

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 9/23

7:05 am-1:05 am

2 stops31h 00m

Bangkok Suvarnabhumi

Mon 10/20

2:35 am-11:40 pm

2 stops32h 05m

$928

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 11/17

6:10 am-9:30 pm

2 stops27h 20m

Bangkok Suvarnabhumi

Wed 12/3

9:40 am-10:14 pm

2 stops24h 34m

$929

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 11/27

7:40 am-9:30 pm

2 stops25h 50m

Bangkok Suvarnabhumi

Mon 12/8

9:40 am-10:39 pm

2 stops24h 59m

$929

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 11/18

7:40 am-12:45 am

2 stops29h 05m

Bangkok Suvarnabhumi

Tue 12/2

9:40 am-11:15 pm

2 stops25h 35m

$929

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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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, September is the cheapest month in which you can book a flight from Washington, D.C. to Thailand (average of $908). Flying from Washington, D.C. to Thailand in December is currently the most expensive (average of $1,518). 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 September 11, 2025.

When flying from Washington, D.C. to Thailand, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 11, 2025.
Get a feel of what it's like to fly with Korean Air, Emirates, and Qatar 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.
Korean Air
8.4
Very good
1,139 reviews

Entertainment

8.2

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

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
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Entertainment

8.2

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

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.
Emirates
8.1
Very good
3,334 reviews
Korean Air
8.4
Very good
1,139 reviews

Entertainment

8.2

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

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.
Qatar Airways
7.4
Good
3,624 reviews
Korean Air
8.4
Very good
1,139 reviews

Entertainment

8.2

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

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.
Etihad Airways
7.4
Good
1,250 reviews
Korean Air
8.4
Very good
1,139 reviews

Entertainment

8.2

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

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.
Turkish Airlines
7.3
Good
3,968 reviews
Korean Air
8.4
Very good
1,139 reviews

Entertainment

8.2

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

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 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?

    Etihad Airways, Qatar Airways, and Delta can get you from Washington, D.C. to Thailand in just under 22h 15m. Your travel time can differ by up to 12h 05m. The distance from Washington, D.C. to Thailand is about 8792 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 $490 on Turkish Airlines. Other airlines that offer cheap prices include Japan Airlines from $493 and IndiGo from $494 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, September is the cheapest month in which you can book a flight from Washington, D.C. to Thailand (average of $908). Flying from Washington, D.C. to Thailand in December is currently the most expensive (average of $1,518). 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

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Alternative routes for Washington, D.C. to Thailand

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$565Average$866FlexibilityNo cancel feeOn-time67%
Air IndiaCheapest$700Average$962FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$743Average$1,576FlexibilityNo cancel feeOn-time81%
SAUDIACheapest$823Average$917FlexibilityNo cancel feeOn-time86%
Etihad AirwaysCheapest$885Average$1,128FlexibilityNo cancel feeOn-time75%
ANACheapest$896Average$1,216FlexibilityNo cancel feeOn-time80%
Turkish AirlinesCheapest$911Average$1,171FlexibilityNo cancel feeOn-time77%
DeltaCheapest$928Average$1,147FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$936Average$1,392FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$937Average$1,312FlexibilityNo cancel feeOn-time69%

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