€348 Cheap Flights Washington to Bangkok (IAD-BKK)

View €348 flight on Sat, 24 Jan 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Suvarnabhumi Intl. Airport (BKK)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 15% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Washington to Bangkok (IAD-BKK)

Prices were available within the past 7 days and start at €348 for one-way flights and €819 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Tue, 2 Dec - Tue, 9 Dec
IAD
Washington
BKK
Bangkok
€819 Return, found 1 day ago
€819
Return
found 1 day ago
Select Air China flight, departing Tue, 2 Dec from Washington to Bangkok, returning Tue, 9 Dec, priced at €819 found 1 day ago
All Nippon Airways
Tue, 2 Dec - Tue, 9 Dec
IAD
Washington
BKK
Bangkok
€826 Return, found 1 day ago
€826
Return
found 1 day ago
Select All Nippon Airways flight, departing Tue, 2 Dec from Washington to Bangkok, returning Tue, 9 Dec, priced at €826 found 1 day ago
Delta
Sat, 24 Jan - Wed, 25 Feb
IAD
Washington
BKK
Bangkok
€832 Return, found 2 days ago
€832
Return
found 2 days ago
Select Delta flight, departing Sat, 24 Jan from Washington to Bangkok, returning Wed, 25 Feb, priced at €832 found 2 days ago
Qatar Airways
Sat, 24 Jan - Wed, 25 Feb
IAD
Washington
BKK
Bangkok
€845 Return, found 2 days ago
€845
Return
found 2 days ago
Select Qatar Airways flight, departing Sat, 24 Jan from Washington to Bangkok, returning Wed, 25 Feb, priced at €845 found 2 days ago
United
Sat, 24 Jan - Wed, 25 Feb
IAD
Washington
BKK
Bangkok
€846 Return, found 2 days ago
€846
Return
found 2 days ago
Select United flight, departing Sat, 24 Jan from Washington to Bangkok, returning Wed, 25 Feb, priced at €846 found 2 days ago
Etihad Airways
Sat, 24 Jan - Wed, 25 Feb
IAD
Washington
BKK
Bangkok
€868 Return, found 2 days ago
€868
Return
found 2 days ago
Select Etihad Airways flight, departing Sat, 24 Jan from Washington to Bangkok, returning Wed, 25 Feb, priced at €868 found 2 days ago
Korean Air
Sat, 24 Jan - Wed, 25 Feb
IAD
Washington
BKK
Bangkok
€879 Return, found 2 days ago
€879
Return
found 2 days ago
Select Korean Air flight, departing Sat, 24 Jan from Washington to Bangkok, returning Wed, 25 Feb, priced at €879 found 2 days ago
American Airlines
Sat, 24 Jan - Wed, 25 Feb
IAD
Washington
BKK
Bangkok
€949 Return, found 2 days ago
€949
Return
found 2 days ago
Select American Airlines flight, departing Sat, 24 Jan from Washington to Bangkok, returning Wed, 25 Feb, priced at €949 found 2 days ago
Turkish Airlines
Tue, 2 Dec - Tue, 9 Dec
IAD
Washington
BKK
Bangkok
€1,031 Return, found 1 day ago
€1,031
Return
found 1 day ago
Select Turkish Airlines flight, departing Tue, 2 Dec from Washington to Bangkok, returning Tue, 9 Dec, priced at €1,031 found 1 day ago
Saudia
Sat, 24 Jan - Wed, 25 Feb
IAD
Washington
BKK
Bangkok
€1,061 Return, found 2 days ago
€1,061
Return
found 2 days ago
Select Saudia flight, departing Sat, 24 Jan from Washington to Bangkok, returning Wed, 25 Feb, priced at €1,061 found 2 days ago

Find the cheapest month to fly from Washington (IAD) to Bangkok (BKK)

March is typically the cheapest month to fly

From €680 - €1,434 per traveller.

Alternative airports near Bangkok

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Suvarnabhumi Intl. BKK. Cheapest option available. Average driving time to city centre is 23 minutes. Flights from €1,378
BKK
Suvarnabhumi Intl.
Cheapest
Average driving time to city centre23 min
Flights from €1,378
Washington to Bangkok route information
Origin airport
Washington Dulles Intl.
Destination airport
Suvarnabhumi Intl.
Return price
€818
Distance
14075 km

Perfect flights from Washington to Bangkok

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Washington to Bangkok. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Washington Dulles Intl. to Suvarnabhumi Intl. ticket options cater to your travel preferences, with incredible one-way fares from €348 and roundtrip prices from €819. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Suvarnabhumi Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Bangkok.

Frequently asked questions

How much is a flight from IAD to Suvarnabhumi Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight from IAD to Suvarnabhumi Intl. Airport (BKK) was €819. Fares this good don't wait forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to Suvarnabhumi Intl. Airport (BKK)?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Washington Dulles Intl. Airport (IAD) to Suvarnabhumi Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dulles Intl. Airport to Bangkok Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to Suvarnabhumi Intl. Airport (BKK)?
With a flight distance of 14,200 kilometres between Chantilly and Bang Phli, this is a long-haul journey. Remember to stay hydrated and move your legs every now and then.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Suvarnabhumi Intl. Airport (BKK)?
At present, no airlines offer direct flights from IAD to Suvarnabhumi Intl. Airport (BKK). You'll have to book a flight with one or more stops. To score the best connections and price, lock in your airfare well in advance.
Are Washington Dulles Intl. Airport (IAD) to Suvarnabhumi Intl. Airport (BKK) flight tickets cheaper when they're purchased at the last minute?
Tickets from IAD to BKK are available up to 12 months prior to departure on Expedia. And although you may occasionally score a fantastic last-minute deal, it's never something you can count on. Also, booking your flights in advance means you'll have more options — and you can avoid getting stuck in the dreaded middle seat! We regularly update our fares to make sure you get the biggest bargains, so keep checking in for all the latest specials.

Explore a world of travel with Expedia

*Available to Expedia members.