Cheap flights from Washington, D.C. to Bangkok from $395

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 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
2:35 pm - 11:25 pm
IAD
-
BKK
20h 50m
1 stop
Etihad Airways Logo
8:05 am - 10:05 am
BKK
-
IAD
61h 00m
2 stops
$863Etihad Airways
Mon, Feb 9 - Mon, Mar 9
Etihad Airways Logo
2:35 pm - 11:25 pm
IAD
-
BKK
20h 50m
1 stop
Etihad Airways Logo
10:00 am - 10:05 am
BKK
-
IAD
59h 05m
2 stops
$864Etihad Airways
Mon, Feb 16 - Mon, Mar 9
Qatar Airways Logo
9:00 pm - 1:25 pm
IAD
-
BKK
29h 25m
1 stop
Qatar Airways Logo
7:40 pm - 4:05 pm
BKK
-
IAD
31h 25m
1 stop
$868Qatar Airways
Wed, Apr 1 - Tue, Apr 21
Etihad Airways Logo
3:35 pm - 11:25 pm
IAD
-
BKK
20h 50m
1 stop
Etihad Airways Logo
8:05 am - 10:05 am
BKK
-
IAD
61h 00m
2 stops
$870Etihad Airways
Thu, Mar 12 - Mon, Mar 16
Etihad Airways Logo
3:35 pm - 6:45 am
IAD
-
BKK
28h 10m
1 stop
Etihad Airways Logo
12:25 pm - 9:45 am
BKK
-
IAD
56h 20m
2 stops
$871Etihad Airways
Thu, Apr 30 - Wed, May 13
Etihad Airways Logo
2:35 pm - 7:10 am
IAD
-
BKK
28h 35m
1 stop
Etihad Airways Logo
5:40 pm - 10:05 am
BKK
-
IAD
51h 25m
2 stops
$872Etihad Airways
Sun, Mar 1 - Sat, Mar 14
Turkish Airlines Logo
9:15 pm - 3:05 pm
IAD
-
BKK
29h 50m
1 stop
Turkish Airlines Logo
10:45 pm - 7:50 pm
BKK
-
IAD
32h 05m
1 stop
$875Turkish Airlines
Mon, Feb 16 - Tue, Mar 31
United Airlines Logo
6:30 am - 4:35 am
DCA
-
BKK
35h 05m
2 stops
United Airlines Logo
9:35 am - 9:06 pm
BKK
-
DCA
46h 31m
2 stops
$935United Airlines
Thu, May 7 - Sun, May 17
Korean Air Logo
8:40 am - 11:20 pm
DCA
-
BKK
27h 40m
2 stops
Korean Air Logo
9:50 am - 5:00 pm
BKK
-
DCA
42h 10m
2 stops
$936Korean Air
Wed, Mar 25 - Tue, Apr 14
United Airlines Logo
11:55 am - 9:45 am
DCA
-
BKK
34h 50m
3 stops
United Airlines Logo
7:00 am - 8:35 pm
BKK
-
DCA
24h 35m
2 stops
$938United Airlines
Mon, Apr 13 - Thu, Apr 30

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

Our best Qatar Airways deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets
Qatar Airways
Apr 1
IAD9:00 pmWashington, D.C. Dulles Intl
29h 25m
1 stop
BKK1:25 pmBangkok Suvarnabhumi
Apr 21
BKK7:40 pmBangkok Suvarnabhumi
31h 25m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$868
Qatar Airways
Feb 15
IAD10:40 amWashington, D.C. Dulles Intl
20h 45m
1 stop
BKK7:25 pmBangkok Suvarnabhumi
Mar 15
BKK6:55 pmBangkok Suvarnabhumi
33h 00m
1 stop
IAD4:55 pmWashington, D.C. Dulles Intl
$883
Qatar Airways
Feb 21
IAD8:05 pmWashington, D.C. Dulles Intl
29h 00m
1 stop
BKK1:05 pmBangkok Suvarnabhumi
Mar 4
BKK8:15 amBangkok Suvarnabhumi
43h 40m
1 stop
IAD3:55 pmWashington, D.C. Dulles Intl
$886

Turkish Airlines flights from Washington, D.C. to Bangkok Suvarnabhumi Airport

Our best Turkish Airlines deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets
Turkish Airlines
Feb 16
IAD9:15 pmWashington, D.C. Dulles Intl
29h 50m
1 stop
BKK3:05 pmBangkok Suvarnabhumi
Mar 31
BKK10:45 pmBangkok Suvarnabhumi
32h 05m
1 stop
IAD7:50 pmWashington, D.C. Dulles Intl
$875
Turkish Airlines
Jan 20
IAD1:30 pmWashington, D.C. Dulles Intl
37h 35m
1 stop
BKK3:05 pmBangkok Suvarnabhumi
Mar 12
BKK10:10 amBangkok Suvarnabhumi
37h 35m
1 stop
IAD12:45 pmWashington, D.C. Dulles Intl
$880
Turkish Airlines
Feb 2
IAD9:15 pmWashington, D.C. Dulles Intl
29h 50m
1 stop
BKK3:05 pmBangkok Suvarnabhumi
Feb 9
BKK10:10 amBangkok Suvarnabhumi
45h 10m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
$881

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 January 15, 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

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 2/9

2:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Mon 3/9

8:05 am-10:05 am

2 stops61h 00m

$863

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 2/16

2:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Mon 3/9

10:00 am-10:05 am

2 stops59h 05m

$864

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 4/1

9:00 pm-1:25 pm

1 stop29h 25m

Bangkok Suvarnabhumi

Tue 4/21

7:40 pm-4:05 pm

1 stop31h 25m

$868

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 3/12

3:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Mon 3/16

8:05 am-10:05 am

2 stops61h 00m

$870

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 4/30

3:35 pm-6:45 am

1 stop28h 10m

Bangkok Suvarnabhumi

Wed 5/13

12:25 pm-9:45 am

2 stops56h 20m

$871

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 3/1

2:35 pm-7:10 am

1 stop28h 35m

Bangkok Suvarnabhumi

Sat 3/14

5:40 pm-10:05 am

2 stops51h 25m

$872

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 2/16

9:15 pm-3:05 pm

1 stop29h 50m

Bangkok Suvarnabhumi

Tue 3/31

10:45 pm-7:50 pm

1 stop32h 05m

$875

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 5/7

6:30 am-4:35 am

2 stops35h 05m

Bangkok Suvarnabhumi

Sun 5/17

9:35 am-9:06 pm

2 stops46h 31m

$935

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 3/25

8:40 am-11:20 pm

2 stops27h 40m

Bangkok Suvarnabhumi

Tue 4/14

9:50 am-5:00 pm

2 stops42h 10m

$936

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 4/13

11:55 am-9:45 am

3 stops34h 50m

Bangkok Suvarnabhumi

Thu 4/30

7:00 am-8:35 pm

2 stops24h 35m

$938

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 September is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Washington, D.C., with most prices found around $960. The month of October is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Washington, D.C. averaging around $1,025.

How far in advance should I book a flight 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 $1,136 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 $1,042 on momondo.

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

You could potentially save up to 17% 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 January 2026, prices for Washington, D.C. to Bangkok Suvarnabhumi Airport flights are approximately 13% 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

20h 30m

Direct flights

None
The fastest flight from Washington, D.C. to Bangkok Suvarnabhumi Airport takes 20h 30m
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.
  • 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 20h 30m.

  • 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
United AirlinesPriceFrom $216Free CancellationRating
7.4
9,163 reviews
Search United Airlines flights
Air ChinaPriceFrom $565Free CancellationRating
7.2
137 reviews
Search Air China flights
Air CanadaPriceFrom $597Free CancellationRating
7.1
10,622 reviews
Search Air Canada flights
IndiGoPriceFrom $639Free CancellationRating
6.8
523 reviews
Search IndiGo flights
Air IndiaPriceFrom $713Free CancellationRating
5.5
2,975 reviews
Search Air India flights
Etihad AirwaysPriceFrom $787Free CancellationRating
7.3
1,370 reviews
Search Etihad Airways flights
Korean AirPriceFrom $802Free CancellationRating
8.4
1,187 reviews
Search Korean Air flights
Qatar AirwaysPriceFrom $818Free CancellationRating
7.4
3,715 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $862Free CancellationRating
7.3
4,169 reviews
Search Turkish Airlines flights
ANAPriceFrom $896Free CancellationRating
8.4
1,072 reviews
Search ANA 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
Ko Lan
Ayutthaya
Chonburi
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.

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