BKK - IAD

฿21,321 Find Cheap Flights from Bangkok Suvarnabhumi Airport to Washington Dulles Airport – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Suvarnabhumi to Dulles Intl departing on 22/10. 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

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Everything you should know

Cheapest return fare
฿27,500
Typical prices: ฿38,479-฿40,998
ซาอุเดียแอร์ไลน์
Sun 20/9Sun 27/9
BKK - IAD • 1 stop
Cheapest one-way flight
฿21,321
Typical prices: ฿23,168-฿29,783
STARLUX Airlines
Thu 22/10
BKK - IAD • 2 stops
Top airlines
Cheapest • from ฿27,500 (return)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Direct flights
Not available
There are currently no direct flights between Suvarnabhumi and Dulles Intl. You’ll need at least 1 connection.
Insights
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Top stopover airports
Cheapest • Avg ฿43,575 (return)
Shortest trip • 20h 24m (one-way)
Insights
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When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 3% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 10% price drop
Most popular
Good to know
Good to know
+1
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Good to know
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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Suvarnabhumi 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 return flight deals from Suvarnabhumi to Dulles Intl

Sun 20 Sep - Sun 27 Sep
ซาอุเดียแอร์ไลน์ Logo
15:25 - 15:45
BKK
-
IAD
35h 20m
1 stop
ซาอุเดียแอร์ไลน์ Logo
18:50 - 13:45
IAD
-
BKK
31h 55m
1 stop
฿27,500ซาอุเดียแอร์ไลน์
Sun 13 Sep - Sun 20 Sep
ซาอุเดียแอร์ไลน์ Logo
15:25 - 15:45
BKK
-
IAD
35h 20m
1 stop
ซาอุเดียแอร์ไลน์ Logo
18:50 - 13:45
IAD
-
BKK
31h 55m
1 stop
฿28,070ซาอุเดียแอร์ไลน์
Sun 13 Sep - Sun 20 Sep
ซาอุเดียแอร์ไลน์ Logo
15:25 - 15:45
BKK
-
IAD
35h 20m
1 stop
ซาอุเดียแอร์ไลน์ Logo
18:50 - 13:45
IAD
-
BKK
31h 55m
1 stop
฿29,111ซาอุเดียแอร์ไลน์
Mon 7 Sep - Mon 14 Sep
United Airlines Logo
09:35 - 10:05
BKK
-
IAD
35h 30m
1 stop
United Airlines Logo
06:13 - 04:35
IAD
-
BKK
35h 22m
2 stops
฿34,014United Airlines
Mon 7 Sep - Mon 14 Sep
United Airlines Logo
09:35 - 10:05
BKK
-
IAD
35h 30m
1 stop
United Airlines Logo
17:15 - 09:35
IAD
-
BKK
29h 20m
3 stops
฿34,014United Airlines
Tue 20 Oct - Sun 25 Oct
United Airlines Logo
09:35 - 10:05
BKK
-
IAD
35h 30m
1 stop
United Airlines Logo
06:11 - 05:10
IAD
-
BKK
35h 59m
2 stops
฿34,114United Airlines
Tue 8 Sep - Tue 6 Oct
Qatar Airways Logo
09:15 - 15:40
BKK
-
IAD
41h 25m
1 stop
Qatar Airways Logo
21:00 - 13:25
IAD
-
BKK
29h 25m
1 stop
฿37,203Qatar Airways
Mon 7 Sep - Tue 6 Oct
Qatar Airways Logo
02:30 - 15:40
BKK
-
IAD
24h 10m
1 stop
Qatar Airways Logo
21:00 - 12:55
IAD
-
BKK
28h 55m
1 stop
฿37,472Qatar Airways
Thu 20 Aug - Thu 27 Aug
เอทิฮัดแอร์เวย์ Logo
09:15 - 09:45
BKK
-
IAD
35h 30m
1 stop
เอทิฮัดแอร์เวย์ Logo
15:10 - 06:45
IAD
-
BKK
28h 35m
1 stop
฿64,166เอทิฮัดแอร์เวย์
Thu 20 Aug - Wed 26 Aug
เอทิฮัดแอร์เวย์ Logo
09:15 - 09:45
BKK
-
IAD
35h 30m
1 stop
เอทิฮัดแอร์เวย์ Logo
15:10 - 23:55
IAD
-
BKK
21h 45m
1 stop
฿64,166เอทิฮัดแอร์เวย์
Booking Insights

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

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

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

This analysis is based on the cheapest return 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 September.

Flight prices are below average for this route right now.

Flights to Washington, D.C. Dulles Intl Airport from Bangkok Suvarnabhumi Airport usually cost between ฿35,995 and ฿47,713 in September.
The lowest price found in the past 5 days was ฿27,500 on ซาอุเดียแอร์ไลน์ (20 Sep–27 Sep).

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 March, where tickets cost ฿34,954 (return) on average. On the other hand, the most expensive months are February and November, where the average cost of round-trip tickets is ฿41,300 and ฿40,998 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 2 weeks before departure, which saves you about 3% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

January

Cheapest flight

฿21,321
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly (1% more expensive on average)
Flight from Bangkok Suvarnabhumi Airport to Washington Dulles Airport

When to book flights from Suvarnabhumi to Dulles Intl

Are your dates flexible? Find out the best times to travel from Suvarnabhumi to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 Suvarnabhumi Airport to Washington Dulles Airport flights

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

    In the last 5 days, the lowest price for a flight from Bangkok Suvarnabhumi Airport to Washington, D.C. Dulles Intl Airport was ฿21,321 for a one-way ticket and ฿27,500 for a return.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Bangkok to Washington, D.C. are Korean Air and United Airlines. With an average price for the route of ฿37,005 and an overall rating of 8.4, Korean Air is the most popular choice. United Airlines is also a great choice for the route, with an average price of ฿35,446 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Bangkok Suvarnabhumi Airport 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 Suvarnabhumi Airport 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 Suvarnabhumi Airport 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 Suvarnabhumi Airport is likely to change within 7 days, so travellers know whether to wait or book now.

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington Dulles Airport with an airline and back to Bangkok Suvarnabhumi Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bangkok Suvarnabhumi Airport 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 Suvarnabhumi Airport 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 flying from Suvarnabhumi 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 Suvarnabhumi 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 1221 reviews
8.1Food
8.2Entertainment
8.5Boarding
8.3Comfort
8.7Crew
Airline reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

10.0 ExcellentFiruz, Apr 2026
ICN - LAX
Read more Korean Air reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

AAAAHHHH... It was shocking in a very positive way, the attention to detail, the courtesy, the manners of all personnel on board, the constant honest smiling. You can see and feel they take pride in all they do no matter how trivial. The plane in general was very comfortable. I can't wait to do it again

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.

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

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

The flight was canceled. I couldn't get on another flight. Meal voucher wouldn't work. The whole experience was a clusterfuck.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

Flight was delayed 14 hours due to DC air show and weather. Missed connection to MUC.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

Flight attendants were great. Food mediocre. Bamboo utensils not Great especially if you have to cut something. Seating a bit crowded.

The crew was the worst ive ever had in my life flying with United Airlines, letting another person move my bag without asking and then the staff saying would the floor be better after I kept begging saying dont move my bag it has fragile things inside. This incident truly makes me they favor other customers more and I dont want to worry about being on the tail end. Especially if they dont listen any input, no care for what I asked but accommodated those who are reckless and disturb others more...

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

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.

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.

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

Plane was good Crew was good Food was just ok Could have had more entertainment options But overall good

I was unable to pre purchase sear upgrades or internet. Their online site is not user friendly and poor. I felt singled out in customs. Seats are very small even for a small person.

I recently travelled with Qatar Airways from Doha to Dulles in the QSuite, and the experience was nothing short of exceptional. The QSuite truly feels like a First-Class experience, with its luxurious design, privacy, and comfort. The cabin crew, especially the lady in charge of the cabin, was remarkable—professional, attentive, and genuinely kind. The food was excellent, and the comfort of the seat was absolutely first-class, making the journey smooth and enjoyable. While the in-flight experience was outstanding, I have a few points of feedback. Firstly, the content available in the in-flight entertainment system could be expanded and upgraded to include a more diverse and updated collection. This would elevate the entertainment experience to match the premium standards of the QSuite. Secondly, regarding the Wi-Fi service: while QSuite passengers receive one hour of complimentary Wi-Fi, any additional usage requires a fee of USD 10. Considering the premium pricing of QSuite, it would be more fitting to include unlimited Wi-Fi as part of the experience, further enhancing the luxury offered to passengers. Lastly, I must highlight an issue with luggage handling. Unfortunately, my luggage did not make it through the transit, which was disappointing. While the ground crew assured me that it would be delivered to my home on the same day as it was arriving on the next flight, this promise was not fulfilled, and the delay added unnecessary inconvenience to an otherwise excellent experience. Overall, the QSuite experience was exceptional, but addressing these areas would further solidify Qatar Airways’ position as a leader in luxury air travel.

Do not overbook flights and kick out confirmed ticketed passengers :-(

Staff was very friendly. There is no on board entertainment, but it’s such a short flight that it doesn’t matter. We also got a meal which was nice and unexpected due to the length of the flight.

Was required to print a boarding pass, which I'd prefer to avoid. Seat (economy x) was comfortable, service was excellent.

Vistara i bought a biz class fare but a few days before vistara always changes my biz class flight to economy .. happened to me 4 times .. seated could be wider .. boarding could be more organized .. crew did their best but not enough resources all in all very poor experience Qatar Delhi .. only complain .. no clear signage to lounge for transferring pax .. its a Delhi shot coming.. no feeling of exclusivity for biz/ 1st class pax.. but everything else was much better .. once i boarded Qatar .. i loved it Qatar to Washington .. only complain i boarding .. too crowded .. no separate area for biz/1st class should hav completely separate area for upper class.. security is stifling pax comfort by the gate ..but everything else was great

Limit the number of usage of wine or please arrange our seats. The passenger was drunk on this flight and not on Thiruvananthapuram to Abudhabi.

Food quality and varites were very minimum. Surprised to have no desserts. Business class tickets should have lounge access and seats selection. They should be allowed to board while people with wheel chair, secial assistance and family with childrem.

The flight was over 1 hour late taking off ,when I arrived in Abu Dhabi ,I missed my connecting flight to Bangkok so I had to wait almost 6 hours for my flight arriving in Bangkok at 6:30 am ,So I missed a whole day of my vacation and my hotel room sat empty so I paid for hotel days that I was not there. In Abu Dhabi there was a woman that worked the desk at transfers that was so professional, courteous , helpful,and may I say absolutely beautiful .she got me food vouchers for my layover and was a very calming presence. Besides that I will never use Etihad again I will pay the Xtra money . I'm sure they won't read or see this but it's my "2 cents" I'll use an airline that respects me and my hard earned dollars

excellent, staff and boarding were all seamless and no issues, thank you!

I was charged $604 for a bag that weighed 17 kg. I was given three different prices until they landed on the most expensive one and didn't budge a penny. It's ironic and a bit enraging because the total cost of my ticket was $468. I've traveled the world and never experienced these kind of prices for only one piece of checked luggage.

The WiFi was not compatible on both my phones (Vivo Y30 5g and Samsung Galaxy A32) with up-to-date android software.

Old plane, old entertainment system. It wasn't working throughout the entire flight. I was offered to connect to their system via Wifi to watch on my phone. Crew wasn't very helpful except one lady who turned the experience around.

1st of all on February 27th Abu Dhabi to Delhi flight the seat wasn't comfortable at all, coming back the Lounge at Abu Dhabi didn't have anything. Than the Food in the flight

Overall mediocre experience. Check in was good. They're were discriminatory. They were not attentive, food choices were not vegetarian friendly. The food served was frozen.

Eine Toilette der Business Class war gesperrt und somit nicht benutzbar.

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

Information on your arrival and departure airports