$527 Find Cheap Flights from Thailand to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Washington, D.C. departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$963
Typical prices: $1,045-$1,322
Air Canada
Wed 5/6Wed 5/13
BKK - IAD • 2 stops
Cheapest one-way
$527
Multiple Airlines
Mon 4/6
BKK - BWI • 3 stops
When to travel
October
Cheapest • 22% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Thailand to Washington, D.C.

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Thailand to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Wed, May 6 - Wed, May 13
Air Canada Logo
7:05 am - 7:50 am
BKK
-
IAD
35h 45m
2 stops
Air Canada Logo
12:39 pm - 5:05 am
IAD
-
BKK
29h 26m
2 stops
$963Air Canada
Mon, Mar 2 - Mon, May 11
Multiple Airlines Logo
2:15 am - 8:05 pm
BKK
-
DCA
29h 50m
2 stops
Multiple Airlines Logo
9:59 am - 10:55 am
DCA
-
BKK
37h 56m
2 stops
$979Multiple Airlines
Tue, Feb 24 - Wed, Mar 4
Multiple Airlines Logo
2:15 am - 8:05 pm
BKK
-
DCA
29h 50m
2 stops
Multiple Airlines Logo
9:59 am - 11:30 am
DCA
-
BKK
37h 31m
2 stops
$994Multiple Airlines
Tue, Mar 10 - Wed, Mar 18
Multiple Airlines Logo
2:15 am - 8:05 pm
BKK
-
DCA
28h 50m
2 stops
Multiple Airlines Logo
9:59 am - 11:40 pm
DCA
-
BKK
50h 41m
2 stops
$1,020Multiple Airlines
Tue, May 26 - Tue, Jun 2
EVA Air Logo
11:35 am - 7:34 am
CNX
-
IAD
30h 59m
2 stops
EVA Air Logo
5:33 pm - 10:25 am
IAD
-
CNX
29h 52m
2 stops
$1,056EVA Air
Tue, Mar 3 - Thu, May 7
EVA Air Logo
12:45 pm - 5:20 pm
BKK
-
IAD
40h 35m
2 stops
EVA Air Logo
7:10 am - 10:25 am
IAD
-
BKK
40h 15m
2 stops
$1,078EVA Air
Mon, Feb 16 - Wed, Mar 18
United Airlines Logo
4:55 pm - 10:55 am
BKK
-
DCA
30h 00m
3 stops
United Airlines Logo
12:00 pm - 11:25 am
DCA
-
BKK
36h 25m
3 stops
$1,078United Airlines
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
4:55 pm - 10:59 am
BKK
-
DCA
30h 04m
3 stops
United Airlines Logo
7:00 am - 5:10 am
DCA
-
BKK
35h 10m
2 stops
$1,084United Airlines
Tue, May 26 - Tue, Jun 2
EVA Air Logo
11:35 am - 7:34 am
CNX
-
IAD
30h 59m
2 stops
EVA Air Logo
5:33 pm - 10:25 am
IAD
-
CNX
29h 52m
2 stops
$1,165EVA Air
Tue, May 26 - Tue, Jun 2
Etihad Airways Logo
9:30 am - 9:45 am
CNX
-
IAD
35h 15m
1 stop
Etihad Airways Logo
3:10 pm - 6:25 am
IAD
-
CNX
28h 15m
1 stop
$1,257Etihad Airways
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 month to fly to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Washington, D.C. is October, where tickets cost $922 on average for one-way flights. On the other hand, the most expensive months are August and March, where the average cost of tickets from Thailand is $1,494 and $1,369 respectively. For return trips, the best month to travel is October with an average price of $922.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 80 days 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, with an average flight price of $231.

Good to know

Low seasonJanuary
Cheapest flight$527
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Bangkok to Baltimore

FAQs - booking Washington, D.C. flights

  • 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

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

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Wednesday where tickets can be as cheap as $282. On the other hand, the most expensive day to fly is Friday, where prices are $592 on average.

  • 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 8,764 direct flights from within Thailand to Washington, D.C.. The most common day for departures is Thursday, with 15% 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 3 airlines serving from Thailand to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Thailand to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
8.4
ANAOverall score based on 1078 reviews
8.2Comfort
8.5Boarding
7.7Food
7.9Entertainment
8.7Crew
Airline reviews

The plane was very clean and the crew was very nice.

8.0 ExcellentKaye, Jan 2026
HND - LAX
Read more ANA reviews

The plane was very clean and the crew was very nice.

The lounge in Japan was busy and smaller. Have great choice of ramen.

Customer service was very good. Food was delicious. Wish the flight was longer.

I was good seat to keep stretch my legs . but couldn’t keep my bag in my hand . because they told me can’t keep my seat is no holder , because no seat fronts of us. wish I can put my leg on something higher. but instead of that everything goood.

Overall was a good experience. Crew members are nice and helpful.

Good airlines btu ORL airport messed up the return flight for me. Checking out a connecting flight pax is unacceptable.

The pilot was kept warning about the weather terrifying us. The flight attendants were not warm or pleasant.

I couldn’t sit with my daughter. we are separate and both seat was not window or halway side. in the middle. if we sit together will be share comfort seat and more easy travel. this is bad.

Although the flight was delayed because of the equipment came in late, I still give them excellent service ..good food selection and in flight entertainment were sufficient.. I will continue to fly with them

Staff was rude and loud. No respect for customers unlike the Starflyer Osaka to Haneda sector where service was outstanding. What a stark difference. Maybe United should learn from ANA how to do customer service.

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Very convenient considering that is a non-stop flight, but the Aeromexico still has old model planes, so the entertainment was very poor and the space for carry-on luggage was very limited.

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Flight from MEX to ATL had to divert to Tampa. When we got off the plane, there were non directions on what to do. Nearly 30 minutes just standing around. Finally told to go through security with no boarding passes, and turned away. Then told to to go back. Took forever to leave Tampa for ATL. Missed my connection to Harrisburg.

This long-haul international flight was the most comfortable among any of the same kind of flight operated by an American-headquartered airline - second to none!

I've flown several other airlines, and Delta is really on top on things.

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Qatar Airways is an excellent service provider. The crew members were attentive and helpful. The aircraft was very clean. This was the longest leg of our journey, so it would have been nice to have more leg room for comfort. We appreciated the crew's service of four hot meals to all of us during this long flight. Also, it was helpful that the crew asked us to keep the window shades down for the entire journey, allowing the environment to get lots of rest during the trip. For families traveling with little children, this was helpful to them to keep them settled.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

It was very good. It was a long flight and being a tight with little leg room.

I always fly with Qatar air and you are the best. Keep up the good wor, after travelling with Qatar Air More than 80 times, you never offer to upgrade me.but it happened to my friend companion some time. Any how i still enjoying travelling with Qatar air and wait one day to upgrade me too. Best Regards

Paid $10 for wifi for full flight duration and the wifi wasn’t available after initial 2 hours

My baggage is lost. Flight cancelled, Rebooked ticket through long routes. Mental stress, emotional hurt

The flight overall was good. The attendants did a good job except that 1 female had too much fragrance on. The other things that made the flight unpleasant were out of the airlines control.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

I would love the entertainment center to be updated with more content. The flight to Doha had more options than the one to Miami

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
Oxon Hill
Owings Mills
Glen Burnie
Greenbelt
Ellicott City
Edgewood
Colonial Beach
Pikesville
Lutherville Timonium
Hunt Valley
Camp Springs
Stevensville
Westminster
Hyattsville
Chesapeake Beach

Everything you need to know for your flight to Washington, D.C.

Cabin class types available on flights to Washington, D.C.

Cabin classes available on flights to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.