$413 Find Cheap Flights from Thailand to Washington, D.C. - Compare and Save

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Cheap Flights from Thailand to Washington, D.C.

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Thailand to Washington, D.C.

Thu, Mar 4 - Wed, Mar 24
AIR PREMIA Logo
10:55 pm - 8:35 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
33h 40m1 stop Incheon Intl
AIR PREMIA Logo
12:35 am - 9:25 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 50m1 stop Incheon Intl
$782AIR PREMIA
Thu, Mar 4 - Wed, Mar 24
AIR PREMIA Logo
10:55 pm - 8:35 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
33h 40m1 stop Incheon Intl
AIR PREMIA Logo
12:35 am - 9:25 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 50m1 stop Incheon Intl
$783AIR PREMIA
Tue, Nov 10 - Wed, Nov 25
United Airlines Logo
9:10 am - 11:52 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
38h 42m2 stops Tokyo Haneda Chicago O'Hare Intl
United Airlines Logo
10:10 pm - 11:30 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
49h 20m2 stops Los Angeles Hong Kong Intl
$1,041United Airlines
Thu, Mar 11 - Thu, Apr 1
United Airlines Logo
7:10 am - 12:58 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
29h 48m2 stops Tokyo Narita San Francisco
United Airlines Logo
1:05 pm - 9:35 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 30m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
$1,043United Airlines
Mon, Mar 8 - Mon, Aug 23
ANA Logo
2:20 pm - 9:10 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
30h 50m1 stop Tokyo Haneda
ANA Logo
3:35 pm - 4:35 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
26h 00m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,065ANA
Mon, Mar 8 - Mon, Aug 23
ANA Logo
10:25 pm - 9:10 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
22h 45m1 stop Tokyo Haneda
ANA Logo
3:35 pm - 4:35 amIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
26h 00m2 stops Chicago O'Hare Intl Tokyo Haneda
$1,066ANA
Mon, Mar 8 - Mon, Aug 9
Qatar Airways Logo
8:35 pm - 3:55 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
31h 20m1 stop Doha Hamad Intl
Qatar Airways Logo
9:00 pm - 7:05 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
35h 05m1 stop Doha Hamad Intl
$1,231Qatar Airways
Mon, Mar 8 - Mon, Aug 9
Korean Air Logo
9:50 am - 9:50 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 00m1 stop Incheon Intl
Korean Air Logo
1:30 pm - 1:35 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
37h 05m1 stop Incheon Intl
$1,239Korean Air
Mon, Mar 8 - Mon, Aug 9
Qatar Airways Logo
8:15 am - 3:55 pmBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
43h 40m1 stop Doha Hamad Intl
Qatar Airways Logo
9:00 pm - 7:05 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
35h 05m1 stop Doha Hamad Intl
$1,244Qatar Airways
Mon, Mar 8 - Mon, Aug 9
Korean Air Logo
9:50 am - 9:50 amBKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 00m1 stop Incheon Intl
Korean Air Logo
1:30 pm - 1:35 pmIAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
37h 05m1 stop Incheon Intl
$1,249Korean Air
Booking Insights

KAYAK's insights & trends for flights to Washington, D.C.

Get data-powered insights and trends for flights to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Washington, D.C.?

In the last 5 days, the cheapest flight deal to Washington, D.C. was found on the route from Chiang Mai, at $782 return. The most popular connection is from Bangkok to Washington, D.C. and KAYAK users have found round-trip deals for as low as $782 in the last 5 days.

What is the cheapest month to fly to Washington, D.C.?

The cheapest month for flights to Washington, D.C. is July, where tickets cost $1,054 on average for return flights. On the other hand, the most expensive months are December and August, where the average cost of tickets from Thailand is $1,254 and $1,220 respectively. For one-way flights, the best month to travel is October with an average price of $601.

How far in advance should I book a flight to Washington, D.C.?

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Which is the cheapest airport to fly into in Washington, D.C.?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington, D.C. is Baltimore/Washington Airport (BWI), with an average flight price of $258.

Good to know

Low season

July

Cheapest flight

$413
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly with an average 58% increase in price.
Flight from Chiang Mai to Washington Dulles Airport

FAQs - booking Washington, D.C. flights

  • What is the cheapest flight to Washington, D.C.?

    In the last 5 days, the cheapest flight deal to Washington, D.C. was found on the route from Chiang Mai, at $782 return. The most popular connection is from Bangkok to Washington, D.C. and KAYAK users have found round-trip deals for as low as $782 in the last 5 days.

  • Which Washington, D.C. airport is closest to central Washington, D.C.?

    Out of the 2 airports in Washington, D.C., Reagan Washington National Airport is the nearest to the city center (4 miles). You'll travel 22 miles to reach the center of Washington, D.C. if you land in Washington Dulles Airport

  • How does KAYAK find such low prices on flights to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Washington, D.C. are there each week?

    Each week there are around 20,238 direct flights from within Thailand to Washington, D.C.. The most common day for departures is Sunday, with 18% of flights taking off on this day.

Top tips for finding cheap flights to Washington, D.C.

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.

Reviews of the top airlines flying from Thailand to Washington, D.C.

 
Need help choosing which airline to fly with to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
ANAOverall score based on 1337 reviews
8.0Entertainment
7.8Food
8.2Comfort
8.5Boarding
8.7Crew
Airline reviews

Long haul from Chicago to Tokyo was great, traveled in the ROOM on ANA and experience was great all around. The flight from Tokyo to Bangkok was fine. Definitely a good way to go. Should have stopped in Tokyo for a bit.

10.0 ExcellentAnonymous, Oct 2026
Read more ANA reviews

Long haul from Chicago to Tokyo was great, traveled in the ROOM on ANA and experience was great all around. The flight from Tokyo to Bangkok was fine. Definitely a good way to go. Should have stopped in Tokyo for a bit.

Refer to the Osaka-Tokyo one, it explained how I felt about both flights

I am a United 1K flyer but certainly I would fly ANA again. Great inflight service!

"The Room" is the only way to fly. The service was excellent and the stewardesses we all gorgeous and friendly. The boarding process was delayed and the attendants at the airport were not the best.

Great. Very helpful staff and accommodating. The flight was also smooth

My son flew and had a great experience.. thank you for taking care of my baby

Choice of movies dated as with the screens. Major room for improvement on the software to sort and select choices.

I loved everything about my experience!!! The staff were absolutely incredible. I can not wait to fly again with them.

Flight was late boarding. United crew were not friendly and cordial unlike the ANA crew.

we were in premium economy, but we both got middle seats and had to sit separately. i could have avoided this by trying to obtain seats sooner, but i tried 3 times and gave up. ANA's technology is not friendly for newcomers. no, check that---I think it is nigh impossible. not sure we are coming back. ana can do better to provide a front end that's friendly to users in both US and Japan.

Worst boarding experience, flight extremely delayed causing super tight connect and deplaning was a disaster as ppl were pushing and shoving to get off. Then after flying over 8 hours had to get off a job to next flight. Limited beverage service in Business class (water or white wine) no food. The plane was very cold (temperature) so uncomfortable

- delayed because video screens not working - delayed getting a gate at DCA Just continued bad experience IAH to DCA.

The business class service was very good. The crew was helpful and the food was enjoyable. Boarding was well organized.

Entertainment was great. Seats were good. They did not have my pre-ordered hot food product available but did comp me something cold in place of the item.

No water or beverage was provided. I had to ask for water. The sole flight attendant had more interest in selling the credit card. In addition when we got to Dulles the plane and gate were misaligned and it took at least 15 minutes to get off the plane.

Flight was delayed almost an hour because the cleaning crew broke one of the bathroom doors.

When we boarded we were treated with care and it never stopped. Got towels before breakfast and after snacks was a lovely touch!

The flight crew was the worst I've experienced. If they worked for me, I would fire them immediately. They never smiled, they seemed angry and avoided passengers as much as possible. The food was not edible, and my luggage was lost. I will never fly United again!!!

Fought with Lufthansa was poor, seats are uncomfortable, food was bad and luggage did not arrive to IA

Awful!!!. I do not recommend United. The flight staff are unhappy and don't attempt to make the passengers feel comfortable or welcome. The food is not edible, and the seats are miserable. My expensive luggage was destroyed, and the ticket prices are too much for the experience.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Linthicum Heights
Hanover
Springfield
Gaithersburg
Towson
Owings Mills
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Greenbelt
Glen Burnie
Edgewood
Camp Springs
Chesapeake Beach
Ellicott City
Pikesville
Hunt Valley
Capitol Heights
Lutherville Timonium
Colonial Beach
Clinton
Westminster

More options for your flight to Washington, D.C.