S$613 Cheap Flights from Washington to Bangkok

View S$613 flight on Wed, 24 Sep, 2025Opens in a new window

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

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Cheap Flights from Washington to Bangkok (IAD-BKK)

Prices were available within the past 7 days and start at S$613 for one-way flights and S$1,163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,163 Return, found 14 hours ago
S$1,163
Return
found 14 hours ago
Select Etihad Airways flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,163 found 14 hours ago
United
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,208 Return, found 14 hours ago
S$1,208
Return
found 14 hours ago
Select United flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,208 found 14 hours ago
All Nippon Airways
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,228 Return, found 14 hours ago
S$1,228
Return
found 14 hours ago
Select All Nippon Airways flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,228 found 14 hours ago
United
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,263 Return, found 14 hours ago
S$1,263
Return
found 14 hours ago
Select United flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,263 found 14 hours ago
All Nippon Airways
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,284 Return, found 14 hours ago
S$1,284
Return
found 14 hours ago
Select All Nippon Airways flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,284 found 14 hours ago
Delta
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,316 Return, found 14 hours ago
S$1,316
Return
found 14 hours ago
Select Delta flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,316 found 14 hours ago
Delta
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,317 Return, found 14 hours ago
S$1,317
Return
found 14 hours ago
Select Delta flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,317 found 14 hours ago
Korean Air
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,319 Return, found 14 hours ago
S$1,319
Return
found 14 hours ago
Select Korean Air flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,319 found 14 hours ago
Delta
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,320 Return, found 14 hours ago
S$1,320
Return
found 14 hours ago
Select Delta flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,320 found 14 hours ago
Delta
Thu, 4 Sep - Wed, 10 Sep
IAD
Washington
BKK
Bangkok
S$1,321 Return, found 14 hours ago
S$1,321
Return
found 14 hours ago
Select Delta flight, departing Thu, 4 Sep from Washington to Bangkok, returning Wed, 10 Sep, priced at S$1,321 found 14 hours ago

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

September is typically the cheapest month to fly

From S$977 - S$1,854 per traveller.

Graph displaying average flight prices per month

Washington to Bangkok route information
Origin airport
Washington Dulles Intl.
Destination airport
Suvarnabhumi Intl.
Return price
S$1,162
Distance
14075 km

Perfect flights from Washington to Bangkok

Your Journey from Washington to Bangkok

Start your unforgettable journey with Expedia. Our broad selection of flights from Washington to Bangkok caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Turkish Airlines, Etihad Airways, Korean Air, United, All Nippon Airways, Delta, Air India, Air Canada. Our selection of flights from Washington Dulles Intl. to Suvarnabhumi Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Washington to Bangkok Flights

Experience the joy of finding cheap flights from Washington Dulles Intl. to Suvarnabhumi Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$613 and roundtrip prices from S$1,163*.
 

Pre-Flight Essentials

Ensure a smooth journey from Washington to Bangkok with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Bangkok

Picture yourself stepping off the plane in Bangkok and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Washington to Bangkok Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Washington to Bangkok.
 

Beyond the Flight – Exploring Bangkok

With Expedia, your adventure extends beyond the flight. Explore Bangkok at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Washington to Bangkok with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Washington to Bangkok with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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 S$1,163. 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.

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