Cheap flights from Washington, D.C. to Bangkok from $535

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Bangkok departing on 7/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
10:40 am - 7:25 pm
IAD
-
BKK
20h 45m
1 stop
Qatar Airways Logo
8:30 pm - 8:20 am
BKK
-
IAD
23h 50m
1 stop
$1,021Qatar Airways
Fri, Nov 27 - Sat, Dec 12
Multiple Airlines Logo
9:35 am - 8:00 pm
IAD
-
BKK
47h 25m
2 stops
Multiple Airlines Logo
9:10 pm - 5:51 am
BKK
-
IAD
44h 41m
2 stops
$1,023Multiple Airlines
Wed, Oct 7 - Mon, Nov 16
Etihad Airways Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
Etihad Airways Logo
8:50 pm - 9:05 am
BKK
-
IAD
24h 15m
1 stop
$1,027Etihad Airways
Fri, Oct 9 - Sun, Feb 7
Etihad Airways Logo
2:35 pm - 6:00 pm
IAD
-
BKK
39h 25m
1 stop
Etihad Airways Logo
12:25 pm - 9:05 am
BKK
-
IAD
56h 40m
2 stops
$1,029Etihad Airways
Thu, Nov 26 - Fri, Dec 4
Etihad Airways Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
Etihad Airways Logo
9:15 am - 9:45 am
BKK
-
IAD
35h 30m
1 stop
$1,030Etihad Airways
Fri, Aug 28 - Sat, Sep 5
Etihad Airways Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
Etihad Airways Logo
10:00 am - 9:05 am
BKK
-
IAD
59h 05m
2 stops
$1,031Etihad Airways
Fri, Oct 9 - Sun, Feb 7
Air Canada Logo
9:40 am - 5:05 am
DCA
-
BKK
32h 25m
2 stops
Air Canada Logo
7:05 am - 10:20 am
BKK
-
DCA
38h 15m
2 stops
$1,070Air Canada
Wed, Sep 9 - Wed, Sep 23
Gulf Air Logo
2:55 pm - 9:45 am
DCA
-
BKK
55h 50m
2 stops
Gulf Air Logo
7:15 pm - 10:57 pm
BKK
-
DCA
38h 42m
2 stops
$1,072Gulf Air
Tue, Oct 20 - Tue, Oct 27
Gulf Air Logo
3:36 pm - 9:45 am
DCA
-
BKK
55h 09m
2 stops
Gulf Air Logo
8:15 pm - 11:02 pm
BKK
-
DCA
37h 47m
2 stops
$1,073Gulf Air
Thu, Sep 10 - Tue, Sep 15
Air Canada Logo
11:00 am - 5:05 am
DCA
-
BKK
31h 05m
2 stops
Air Canada Logo
7:05 am - 10:20 am
BKK
-
DCA
38h 15m
2 stops
$1,075Air Canada
Wed, Sep 23 - Mon, Sep 28

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Etihad Airways flights from Washington, D.C. to Bangkok Suvarnabhumi Airport

Our best Etihad Airways deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets
Etihad Airways
Oct 9
IAD3:10 pmWashington, D.C. Dulles Intl
21h 40m
1 stop
BKK11:50 pmBangkok Suvarnabhumi
Feb 7
BKK8:50 pmBangkok Suvarnabhumi
24h 15m
1 stop
IAD9:05 amWashington, D.C. Dulles Intl
$1,027
Etihad Airways
Nov 26
IAD2:35 pmWashington, D.C. Dulles Intl
39h 25m
1 stop
BKK6:00 pmBangkok Suvarnabhumi
Dec 4
BKK12:25 pmBangkok Suvarnabhumi
56h 40m
2 stops
IAD9:05 amWashington, D.C. Dulles Intl
$1,029
Etihad Airways
Aug 28
IAD3:10 pmWashington, D.C. Dulles Intl
21h 40m
1 stop
BKK11:50 pmBangkok Suvarnabhumi
Sep 5
BKK9:15 amBangkok Suvarnabhumi
35h 30m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$1,030

Air Canada flights from Washington, D.C. to Bangkok Suvarnabhumi Airport

Our best Air Canada deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets
Air Canada
Sep 9
DCA9:40 amWashington, D.C. Reagan-National
32h 25m
2 stops
BKK5:05 amBangkok Suvarnabhumi
Sep 23
BKK7:05 amBangkok Suvarnabhumi
38h 15m
2 stops
DCA10:20 amWashington, D.C. Reagan-National
$1,070
Air Canada
Sep 1
IAD10:10 pmWashington, D.C. Dulles Intl
43h 55m
2 stops
BKK5:05 amBangkok Suvarnabhumi
Sep 30
BKK7:05 amBangkok Suvarnabhumi
25h 09m
2 stops
IAD9:14 pmWashington, D.C. Dulles Intl
$1,074
Air Canada
Sep 21
IAD9:07 amWashington, D.C. Dulles Intl
32h 58m
2 stops
BKK5:05 amBangkok Suvarnabhumi
Oct 5
BKK7:05 amBangkok Suvarnabhumi
39h 08m
2 stops
IAD11:13 amWashington, D.C. Dulles Intl
$1,077

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Bangkok Suvarnabhumi Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 11, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 11/27

10:40 am-7:25 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Sat 12/12

8:30 pm-8:20 am

1 stop23h 50m

$1,021

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 10/7

9:35 am-8:00 pm

2 stops47h 25m

Bangkok Suvarnabhumi

Mon 11/16

9:10 pm-5:51 am

2 stops44h 41m

$1,023

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 10/9

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Sun 2/7

8:50 pm-9:05 am

1 stop24h 15m

$1,027

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 11/26

2:35 pm-6:00 pm

1 stop39h 25m

Bangkok Suvarnabhumi

Fri 12/4

12:25 pm-9:05 am

2 stops56h 40m

$1,029

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 8/28

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Sat 9/5

9:15 am-9:45 am

1 stop35h 30m

$1,030

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 10/9

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Sun 2/7

10:00 am-9:05 am

2 stops59h 05m

$1,031

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 9/9

9:40 am-5:05 am

2 stops32h 25m

Bangkok Suvarnabhumi

Wed 9/23

7:05 am-10:20 am

2 stops38h 15m

$1,070

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 10/20

2:55 pm-9:45 am

2 stops55h 50m

Bangkok Suvarnabhumi

Tue 10/27

7:15 pm-10:57 pm

2 stops38h 42m

$1,072

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 9/10

3:36 pm-9:45 am

2 stops55h 09m

Bangkok Suvarnabhumi

Tue 9/15

8:15 pm-11:02 pm

2 stops37h 47m

$1,073

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 9/23

11:00 am-5:05 am

2 stops31h 05m

Bangkok Suvarnabhumi

Mon 9/28

7:05 am-10:20 am

2 stops38h 15m

$1,075

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Bangkok from

How to get the cheapest flight ticket from Washington, D.C. to Bangkok Suvarnabhumi Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. and Bangkok Suvarnabhumi Airport?

What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?

The month of August is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Washington, D.C., with most prices found around $427. The month of September is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Washington, D.C. averaging around $665.

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

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $1,073 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Washington, D.C. for as low as $948 on momondo.

Can stopping save me money on Washington, D.C. to Bangkok Suvarnabhumi Airport flights?

You could potentially save up to 14% on your flight if you consider stops on a Washington, D.C. to Bangkok Suvarnabhumi Airport flight.

How have Washington, D.C. to Bangkok Suvarnabhumi Airport flight prices changed over time?

As of June 2026, prices for Washington, D.C. to Bangkok Suvarnabhumi Airport flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Bangkok Suvarnabhumi Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Bangkok Suvarnabhumi Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Bangkok Suvarnabhumi Airport (WAS to BKK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Bangkok Suvarnabhumi Airport

Fastest flight time

21h 40m

Direct flights

None
The fastest flight from Washington, D.C. to Bangkok Suvarnabhumi Airport takes 21h 40m
There are no direct flights from Washington, D.C. to Bangkok Suvarnabhumi Airport. There are no popular flight routes from Washington, D.C. to Bangkok Suvarnabhumi Airport.

Frequently asked questions about flying from Washington, D.C. to Bangkok Suvarnabhumi Airport

  • How far is Washington, D.C. to Bangkok Suvarnabhumi by plane?

    Bangkok Suvarnabhumi is 8793.6 mi away from Washington, D.C.. A reasonable flight in good conditions will take 21h 40m.

  • When did momondo last update prices for flights from Washington, D.C. to Bangkok Suvarnabhumi Airport?

    Prices for flights from Washington, D.C. to Bangkok Suvarnabhumi Airport refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. to Bangkok Suvarnabhumi Airport?

  • How old do you have to be to fly from Washington, D.C. to Bangkok Suvarnabhumi Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Bangkok Suvarnabhumi Airport.

  • What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

    The travel and health documents you'll need for your trip to Bangkok Suvarnabhumi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bangkok Suvarnabhumi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. to Bangkok Suvarnabhumi Airport?

Best airlines flying from Washington, D.C. to Bangkok Suvarnabhumi Airport

Compare and see reviews for airlines that fly from Washington, D.C. to Bangkok Suvarnabhumi Airport with momondo
Airline
Rating
Free Cancellation
Price
Air ChinaPriceFrom $732Free CancellationRating
7.3
154 reviews
Search Air China flights
AIR PREMIAPriceFrom $784Free CancellationRating
8.1
96 reviews
Search AIR PREMIA flights
Etihad AirwaysPriceFrom $786Free CancellationRating
7.3
1,452 reviews
Search Etihad Airways flights
Korean AirPriceFrom $802Free CancellationRating
8.4
1,218 reviews
Search Korean Air flights
Qatar AirwaysPriceFrom $815Free CancellationRating
7.3
3,726 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $833Free CancellationRating
7.4
4,408 reviews
Search Turkish Airlines flights
ANAPriceFrom $893Free CancellationRating
8.3
1,230 reviews
Search ANA flights
JetBluePriceFrom $900Free CancellationRating
7.1
2,982 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $920Free CancellationRating
7.9
12,480 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $936Free CancellationRating
7.4
9,808 reviews
Search United Airlines flights

Traveling to a place near Bangkok?

Book flights to Bangkok if you plan to visit one of these locations
Pattaya
Ko Samet
Kanchanaburi
Cha-am
Chonburi
Ko Lan
Ayutthaya
Pak Chong
Sattahip
Phetchaburi

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Bangkok?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Bangkok from Washington, D.C..

Can I find flights from Washington, D.C. to Bangkok with flexible booking policies on momondo?

momondo does allow users to show only those flights to Bangkok from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Bangkok?

momondo helps you find the best flight between Washington, D.C. and Bangkok by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Bangkok right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Bangkok flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Bangkok Suvarnabhumi Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 7/11
Sat 7/18

Find better results for your trip to Bangkok

Popular cities in Thailand

Popular flights according to clicks in the last 7 days on momondo