Cheap flights from Washington, D.C. to Bangkok from $386

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 1/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Bangkok

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 50m1 stop
Etihad Airways Logo
8:55 am - 10:05 am
BKK
-
IAD
36h 10m1 stop
$863Etihad Airways
Mon, Feb 23 - Mon, Mar 23
Etihad Airways Logo
2:35 pm - 11:25 pm
IAD
-
BKK
20h 50m1 stop
Etihad Airways Logo
7:35 pm - 9:05 am
BKK
-
IAD
49h 30m2 stops
$865Etihad Airways
Thu, Jan 22 - Mon, Feb 2
Turkish Airlines Logo
2:30 pm - 4:20 am
IAD
-
BKK
26h 50m1 stop
Turkish Airlines Logo
5:50 am - 12:45 pm
BKK
-
IAD
41h 55m1 stop
$867Turkish Airlines
Fri, Mar 20 - Fri, Mar 27
Turkish Airlines Logo
10:15 pm - 3:05 pm
IAD
-
BKK
29h 50m1 stop
Turkish Airlines Logo
5:50 am - 12:45 pm
BKK
-
IAD
41h 55m1 stop
$868Turkish Airlines
Fri, Mar 13 - Fri, Mar 27
Qatar Airways Logo
8:20 pm - 6:20 pm
IAD
-
BKK
35h 00m1 stop
Qatar Airways Logo
7:40 pm - 8:40 am
BKK
-
IAD
24h 00m1 stop
$870Qatar Airways
Thu, Apr 16 - Thu, Apr 23
Qatar Airways Logo
11:05 am - 6:20 pm
IAD
-
BKK
20h 15m1 stop
Qatar Airways Logo
1:45 am - 4:05 pm
BKK
-
IAD
25h 20m1 stop
$873Qatar Airways
Sun, Apr 12 - Wed, Apr 29
Korean Air Logo
6:59 am - 12:45 am
DCA
-
BKK
29h 46m2 stops
Korean Air Logo
11:15 pm - 1:50 pm
BKK
-
DCA
26h 35m2 stops
$935Korean Air
Mon, Feb 2 - Wed, Feb 18
United Airlines Logo
1:00 pm - 9:45 am
DCA
-
BKK
33h 45m3 stops
United Airlines Logo
9:35 am - 9:06 pm
BKK
-
DCA
46h 31m2 stops
$939United Airlines
Mon, Apr 13 - Mon, Apr 27
United Airlines Logo
9:00 am - 11:55 pm
DCA
-
BKK
27h 55m2 stops
United Airlines Logo
7:00 am - 10:17 pm
BKK
-
DCA
26h 17m2 stops
$940United Airlines
Wed, May 6 - Wed, May 13
Korean Air Logo
8:20 am - 12:55 am
BWI
-
BKK
28h 35m2 stops
Korean Air Logo
11:15 pm - 2:54 pm
BKK
-
BWI
26h 39m2 stops
$945Korean Air
Tue, Mar 3 - Mon, Mar 9

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
Feb 23
IAD2:35 pmWashington, D.C. Dulles Intl
20h 50m
1 stop
BKK11:25 pmBangkok Suvarnabhumi
Mar 23
BKK8:55 amBangkok Suvarnabhumi
36h 10m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
$863
Etihad Airways
Jan 22
IAD2:35 pmWashington, D.C. Dulles Intl
20h 50m
1 stop
BKK11:25 pmBangkok Suvarnabhumi
Feb 4
BKK7:35 pmBangkok Suvarnabhumi
49h 30m
2 stops
IAD9:05 amWashington, D.C. Dulles Intl
$865
Etihad Airways
Jan 21
IAD2:35 pmWashington, D.C. Dulles Intl
20h 50m
1 stop
BKK11:25 pmBangkok Suvarnabhumi
Mar 11
BKK10:00 amBangkok Suvarnabhumi
59h 05m
2 stops
IAD10:05 amWashington, D.C. Dulles Intl
$869

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

Our best Japan Airlines deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets
Japan Airlines
Feb 3
BWI6:00 amBaltimore/Washington
29h 35m
2 stops
BKK11:35 pmBangkok Suvarnabhumi
Feb 11
BKK10:05 pmBangkok Suvarnabhumi
33h 34m
2 stops
BWI7:39 pmBaltimore/Washington
$1,010
Japan Airlines
Jan 27
BWI6:00 amBaltimore/Washington
29h 35m
2 stops
BKK11:35 pmBangkok Suvarnabhumi
Feb 4
BKK8:05 amBangkok Suvarnabhumi
27h 54m
2 stops
BWI11:59 pmBaltimore/Washington
$1,013
Japan Airlines
Jan 22
BWI6:00 amBaltimore/Washington
29h 35m
2 stops
BKK11:35 pmBangkok Suvarnabhumi
Feb 12
BKK8:05 amBangkok Suvarnabhumi
23h 34m
2 stops
BWI7:39 pmBaltimore/Washington
$1,017

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 8, 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 2/23

2:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Mon 3/23

8:55 am-10:05 am

1 stop36h 10m

$863

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 1/22

2:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Mon 2/2

7:35 pm-9:05 am

2 stops49h 30m

$865

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 3/20

2:30 pm-4:20 am

1 stop26h 50m

Bangkok Suvarnabhumi

Fri 3/27

5:50 am-12:45 pm

1 stop41h 55m

$867

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 3/13

10:15 pm-3:05 pm

1 stop29h 50m

Bangkok Suvarnabhumi

Fri 3/27

5:50 am-12:45 pm

1 stop41h 55m

$868

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 4/16

8:20 pm-6:20 pm

1 stop35h 00m

Bangkok Suvarnabhumi

Thu 4/23

7:40 pm-8:40 am

1 stop24h 00m

$870

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 4/12

11:05 am-6:20 pm

1 stop20h 15m

Bangkok Suvarnabhumi

Wed 4/29

1:45 am-4:05 pm

1 stop25h 20m

$873

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 2/2

6:59 am-12:45 am

2 stops29h 46m

Bangkok Suvarnabhumi

Wed 2/18

11:15 pm-1:50 pm

2 stops26h 35m

$935

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 4/13

1:00 pm-9:45 am

3 stops33h 45m

Bangkok Suvarnabhumi

Mon 4/27

9:35 am-9:06 pm

2 stops46h 31m

$939

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 5/6

9:00 am-11:55 pm

2 stops27h 55m

Bangkok Suvarnabhumi

Wed 5/13

7:00 am-10:17 pm

2 stops26h 17m

$940

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Tue 3/3

8:20 am-12:55 am

2 stops28h 35m

Bangkok Suvarnabhumi

Mon 3/9

11:15 pm-2:54 pm

2 stops26h 39m

$945

Flights are sorted by cheapest round-trip flights 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 $1,135 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 $1,048 on momondo.

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

You could potentially save up to 15% 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 12% 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 25m

Direct flights

None
The fastest flight from Washington, D.C. to Bangkok Suvarnabhumi Airport takes 20h 25m
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 25m.

  • 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
9,139 reviews
Search United Airlines flights
Air ChinaPriceFrom $565Free CancellationRating
7.2
136 reviews
Search Air China flights
Air CanadaPriceFrom $605Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights
Air IndiaPriceFrom $702Free CancellationRating
5.5
2,974 reviews
Search Air India flights
Etihad AirwaysPriceFrom $787Free CancellationRating
7.3
1,360 reviews
Search Etihad Airways flights
Korean AirPriceFrom $802Free CancellationRating
8.4
1,188 reviews
Search Korean Air flights
Qatar AirwaysPriceFrom $818Free CancellationRating
7.4
3,701 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $867Free CancellationRating
7.3
4,150 reviews
Search Turkish Airlines flights
ANAPriceFrom $896Free CancellationRating
8.4
1,060 reviews
Search ANA flights
JetBluePriceFrom $900Free CancellationRating
7.2
2,896 reviews
Search JetBlue 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
Chonburi
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.

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