BKK - IAD

$593 Find Cheap Flights from Bangkok to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bangkok to Dulles Intl departing on 3/15. 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. Dulles Intl Airport

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

Cheapest round-trip
$762
Typical prices: $1,058-$1,425
Air China
Mon 3/23Tue 4/7
BKK - IAD • 1 stop
Cheapest one-way
$593
Typical prices: $672-$945
Multiple Airlines
Sun 3/15
BKK - IAD • 3 stops
Top airlines
Air China
Cheapest • from $762 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Bangkok and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Beijing (PEK)
Cheapest • Avg $992 (round-trip)
Dubai (DXB)
Shortest trip • 22h 18m (one-way)
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 12% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bangkok to Dulles Intl (BKK-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bangkok to Dulles Intl 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 Bangkok to Dulles Intl

Mon, Mar 23 - Tue, Apr 7
Air China Logo
1:30 am - 7:30 pm
BKK
-
IAD
29h 00m
1 stop
Air China Logo
11:00 pm - 12:10 am
IAD
-
BKK
38h 10m
1 stop
$762Air China
Mon, Mar 23 - Fri, Apr 10
Air China Logo
7:30 pm - 7:30 pm
BKK
-
IAD
35h 00m
1 stop
Air China Logo
11:00 pm - 6:20 pm
IAD
-
BKK
32h 20m
1 stop
$787Air China
Sun, Mar 22 - Fri, Apr 10
Air China Logo
5:55 pm - 7:30 pm
BKK
-
IAD
60h 35m
2 stops
Air China Logo
11:00 pm - 6:20 pm
IAD
-
BKK
32h 20m
1 stop
$797Air China
Thu, Mar 19 - Wed, Apr 1
Multiple Airlines Logo
7:30 pm - 7:30 pm
BKK
-
IAD
35h 00m
1 stop
Multiple Airlines Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
$897Multiple Airlines
Mon, Mar 23 - Mon, Apr 27
Multiple Airlines Logo
1:30 am - 7:30 pm
BKK
-
IAD
29h 00m
1 stop
Multiple Airlines Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
$903Multiple Airlines
Thu, Mar 19 - Wed, Apr 1
Multiple Airlines Logo
5:55 pm - 7:30 pm
BKK
-
IAD
36h 35m
2 stops
Multiple Airlines Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
$915Multiple Airlines
Thu, Mar 26 - Thu, Apr 2
Multiple Airlines Logo
7:30 pm - 7:30 pm
BKK
-
IAD
35h 00m
1 stop
Multiple Airlines Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
$924Multiple Airlines
Mon, Mar 23 - Tue, Mar 31
Multiple Airlines Logo
1:30 am - 7:30 pm
BKK
-
IAD
29h 00m
1 stop
Multiple Airlines Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
$926Multiple Airlines
Thu, Mar 26 - Sun, Mar 29
Multiple Airlines Logo
7:30 pm - 7:30 pm
BKK
-
IAD
35h 00m
1 stop
Multiple Airlines Logo
3:10 pm - 6:15 am
IAD
-
BKK
28h 05m
1 stop
$928Multiple Airlines
Thu, Mar 26 - Thu, Apr 2
Multiple Airlines Logo
5:55 pm - 7:30 pm
BKK
-
IAD
36h 35m
2 stops
Multiple Airlines Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
$934Multiple Airlines
Booking Insights

KAYAK's insights & trends for Bangkok to Dulles Intl flights

Get data-powered insights and trends into flights from Bangkok to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport departing in March.

What is the cheapest month to fly from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport, 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 from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport is July, where tickets cost $1,029 (return) on average. On the other hand, the most expensive months are October and April, where the average cost of round-trip tickets is $1,331 and $1,240 respectively.

How far in advance should I book a flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport, 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 on the flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$593
Most popular time to fly and prices are also 13% lower on average.
Flight from Bangkok to Washington Dulles Airport

When to book flights from Bangkok to Dulles Intl

Are your dates flexible? Find out the best times to travel from Bangkok to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Bangkok to Washington Dulles Airport flights

  • What is the cheapest flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport was $593 for a one-way ticket and $762 for a round-trip.

  • Do I need a passport to fly between Bangkok and Washington Dulles Airport?

    Yes

  • Which aircraft models fly most regularly from Bangkok to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Bangkok to Washington Dulles Airport?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Bangkok and Washington Dulles Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Bangkok to Washington, D.C., Korean Air or ANA?

    The two airlines most popular with KAYAK users for flights from Bangkok to Washington, D.C. are Korean Air and ANA. With an average price for the route of $1,172 and an overall rating of 8.4, Korean Air is the most popular choice. ANA is also a great choice for the route, with an average price of $1,286 and an overall rating of 8.4.

  • How does KAYAK find such low prices on flights from Bangkok to Washington Dulles Airport?

    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 from Bangkok to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bangkok to Washington Dulles Airport?

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

  • What is the Hacker Fare option on flights from Bangkok to Washington Dulles Airport?

    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 Dulles Airport with an airline and back to Bangkok with another airline. Booking your flights between Bangkok and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bangkok to Washington Dulles Airport?

    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 Dulles Airport from Bangkok up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Bangkok to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Bangkok to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bangkok to Dulles Intl? 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
Korean AirOverall score based on 1195 reviews
8.5Boarding
8.3Comfort
8.7Crew
8.1Food
8.2Entertainment
Airline reviews

Great service and comfort level. You can have more of vegetarian food options.

10.0 ExcellentAnonymous, Nov 2025
ICN - SFO
Read more Korean Air reviews

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This was an amazing flight. The crew was great. The service was great. The food provided was great.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

Entertainment was good , comfort on airplane easy hoarding food and drinks was good and a friendly and good service of flight staff

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 didn’t know that my connecting flight from Japan to Hawaii was at a different airport - arrived in Haneda (ticket said Tokyo but didn’t notice the airport name) and had to get my bags and go out of immigration and back in to go to Narita airport 2 hours away. Such a hassle and SOOO confusing and complicated. Check your airports IN ADVANCE and NEVER book if you have to change airports. 40+ years of flying and first time had this. Never again. ANA is great but booking agencies will sell you a connection that you have a good chance of missing - even under the best circumstances.

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 always take ANA because of the great service and overall experience.

Amazing airline accommodations. The cabins were so great. The food was very good and the flight attendants were so nice. Made a 15 hour flight seem easy.

I paid extra for seating when first booking flight to be in a comfortable economy seat They still changed it to a middle seat regardless. When I asked for it to be changed back to aisle, they could only give me one at the back of the plane in the least comfortable seats.

Same as already mentioned. This was more comforting as I got my aisle seat for my knee.

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 boarding experience did not follow the Zones that were listed on the boarding passes. This was a two-level aircraft with many passengers. Because zones were not called out by the airline staff, there was simply a mob trying to board and it was not a pleasant experience.

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

All great, because I was given a seat with extra legroom on this part of my trip.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Everything you need to know for your flight from Bangkok to Dulles Intl

Information on your arrival and departure airports