S$744 Cheap Flights from Bangkok to Washington

View S$744 flight on Thu, 25 Sep, 2025Opens in a new window

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

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Cheap Flights from Bangkok to Washington (BKK-IAD)

Prices were available within the past 7 days and start at S$744 for one-way flights and S$1,393 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Saudia
Thu, 4 Sep - Sat, 20 Sep
BKK
Bangkok
IAD
Washington
S$1,393 Return, found 2 days ago
S$1,393
Return
found 2 days ago
Select Saudia flight, departing Thu, 4 Sep from Bangkok to Washington, returning Sat, 20 Sep, priced at S$1,393 found 2 days ago
Air Canada
Thu, 25 Sep - Fri, 26 Sep
BKK
Bangkok
IAD
Washington
S$1,446 Return, found 2 days ago
S$1,446
Return
found 2 days ago
Select Air Canada flight, departing Thu, 25 Sep from Bangkok to Washington, returning Fri, 26 Sep, priced at S$1,446 found 2 days ago
Air Canada
Sun, 21 Sep - Sat, 11 Oct
BKK
Bangkok
IAD
Washington
S$1,478 Return, found 2 days ago
S$1,478
Return
found 2 days ago
Select Air Canada flight, departing Sun, 21 Sep from Bangkok to Washington, returning Sat, 11 Oct, priced at S$1,478 found 2 days ago
Air Canada
Fri, 26 Sep - Thu, 16 Oct
BKK
Bangkok
IAD
Washington
S$1,498 Return, found 2 days ago
S$1,498
Return
found 2 days ago
Select Air Canada flight, departing Fri, 26 Sep from Bangkok to Washington, returning Thu, 16 Oct, priced at S$1,498 found 2 days ago
Delta
Thu, 4 Sep - Sat, 20 Sep
BKK
Bangkok
IAD
Washington
S$1,527 Return, found 2 days ago
S$1,527
Return
found 2 days ago
Select Delta flight, departing Thu, 4 Sep from Bangkok to Washington, returning Sat, 20 Sep, priced at S$1,527 found 2 days ago
Qatar Airways
Wed, 4 Feb - Thu, 19 Feb
BKK
Bangkok
IAD
Washington
S$1,539 Return, found 9 hours ago
S$1,539
Return
found 9 hours ago
Select Qatar Airways flight, departing Wed, 4 Feb from Bangkok to Washington, returning Thu, 19 Feb, priced at S$1,539 found 9 hours ago
Korean Air
Thu, 25 Sep - Fri, 26 Sep
BKK
Bangkok
IAD
Washington
S$1,556 Return, found 2 days ago
S$1,556
Return
found 2 days ago
Select Korean Air flight, departing Thu, 25 Sep from Bangkok to Washington, returning Fri, 26 Sep, priced at S$1,556 found 2 days ago
Air Canada
Thu, 4 Sep - Sat, 20 Sep
BKK
Bangkok
IAD
Washington
S$1,570 Return, found 2 days ago
S$1,570
Return
found 2 days ago
Select Air Canada flight, departing Thu, 4 Sep from Bangkok to Washington, returning Sat, 20 Sep, priced at S$1,570 found 2 days ago
United
Thu, 25 Sep - Fri, 26 Sep
BKK
Bangkok
IAD
Washington
S$1,675 Return, found 2 days ago
S$1,675
Return
found 2 days ago
Select United flight, departing Thu, 25 Sep from Bangkok to Washington, returning Fri, 26 Sep, priced at S$1,675 found 2 days ago
All Nippon Airways
Thu, 25 Sep - Fri, 26 Sep
BKK
Bangkok
IAD
Washington
S$1,705 Return, found 2 days ago
S$1,705
Return
found 2 days ago
Select All Nippon Airways flight, departing Thu, 25 Sep from Bangkok to Washington, returning Fri, 26 Sep, priced at S$1,705 found 2 days ago

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

May is typically the cheapest month to fly

From S$1,054 - S$1,712 per traveller.

Graph displaying average flight prices per month

Bangkok to Washington route information
Origin airport
Suvarnabhumi Intl.
Destination airport
Washington Dulles Intl.
Return price
S$1,392
Distance
14075 km

Flights from Bangkok to Chantilly

There are several airlines that operate frequent flights from Bangkok (BKK) to Washington D.C. (IAD) including

The earliest flight leaves Suvarnabhumi Intl. Airport at 00:05 and arrives at Washington Dulles Intl. Airport at 07:15. The last flight of the day departs Bangkok at 23:55 and arrives at Washington D.C. at 20:00.

The flight distance from Bangkok to Washington D.C. is about 15510 km, the shortest flight is 19 hours 20 minutes with United Airlines."

Expedia lets you search across the largest number of airlines and Chantilly flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Bangkok Chantilly flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Bangkok to Chantilly trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Chantilly flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Bangkok to Chantilly with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from Suvarnabhumi Airport to IAD?
Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between Suvarnabhumi Airport and Dulles Intl. Airport start from S$1,393. Book now to secure the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from BKK to Dulles Intl. Airport?
Most flights can be cancelled online, but each air carrier has different terms and conditions. If you do have to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Suvarnabhumi Airport to Washington Dulles Intl. Airport (IAD) 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 BKK to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Suvarnabhumi Intl. Airport (BKK) to Dulles Intl. Airport?
With around 14,200 kilometres separating Bangkok Airport and Dulles Intl. Airport, your flight will be a long one. Pack wisely and make your journey more comfortable. Things like a sleep mask and a quality neck pillow should be in your carry-on bag.
Which airlines fly direct from Bangkok Airport to Washington Dulles Intl. Airport (IAD)?
If you want to fly straight from Bangkok Airport to IAD, you'll need to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly on this route.
Are Bangkok Airport to Washington Dulles Intl. Airport (IAD) flight tickets cheaper when they're purchased at the last minute?
Flight prices go up and down like a yo-yo, so not always. While last-minute deals between Suvarnabhumi Airport and Dulles Intl. Airport are possible, it also makes sense to keep an eye on prices well before you fly. In fact, some air carriers announce their prices up to 12 months prior to the departure date. Expedia is constantly updating the biggest airfare bargains around, so check back often and be ready to lock in your seat when the price is low.

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