Cheap flights from Washington, D.C. to Bangkok from $412

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 3/4. 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
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
Etihad Airways Logo
9:00 pm - 9:45 am
BKK
-
IAD
23h 45m
1 stop
$848Etihad Airways
Mon, Apr 20 - Tue, Apr 28
Etihad Airways Logo
3:10 pm - 11:50 pm
IAD
-
BKK
21h 40m
1 stop
Etihad Airways Logo
3:05 pm - 9:45 am
BKK
-
IAD
29h 40m
1 stop
$849Etihad Airways
Mon, May 4 - Mon, May 11
Etihad Airways Logo
3:10 pm - 6:45 am
IAD
-
BKK
28h 35m
1 stop
Etihad Airways Logo
9:55 am - 9:45 am
BKK
-
IAD
58h 50m
2 stops
$850Etihad Airways
Wed, Apr 8 - Wed, Apr 15
Etihad Airways Logo
3:10 pm - 6:15 am
IAD
-
BKK
28h 05m
1 stop
Etihad Airways Logo
12:25 pm - 9:45 am
BKK
-
IAD
56h 20m
2 stops
$851Etihad Airways
Wed, Apr 8 - Wed, Apr 22
AIR PREMIA Logo
1:20 pm - 9:10 pm
IAD
-
BKK
44h 50m
1 stop
AIR PREMIA Logo
10:45 pm - 10:50 am
BKK
-
IAD
23h 05m
1 stop
$856AIR PREMIA
Fri, May 8 - Thu, May 21
Turkish Airlines Logo
2:30 pm - 4:20 am
IAD
-
BKK
26h 50m
1 stop
Turkish Airlines Logo
5:50 am - 12:45 pm
BKK
-
IAD
41h 55m
1 stop
$858Turkish Airlines
Thu, Mar 12 - Fri, Mar 27
Air India Logo
11:00 am - 5:05 am
DCA
-
BKK
31h 05m
2 stops
Air India Logo
7:05 am - 9:55 pm
BKK
-
DCA
25h 50m
2 stops
$893Air India
Mon, May 4 - Mon, Jun 1
Air India Logo
11:00 am - 5:05 am
DCA
-
BKK
31h 05m
2 stops
Air India Logo
7:05 am - 9:55 pm
BKK
-
DCA
25h 50m
2 stops
$932Air India
Sat, May 2 - Mon, Jun 1
Cathay Pacific Logo
6:59 pm - 10:00 am
DCA
-
BKK
28h 01m
2 stops
Cathay Pacific Logo
3:00 pm - 12:30 am
BKK
-
DCA
44h 30m
2 stops
$941Cathay Pacific
Sun, Apr 26 - Sat, May 16
Cathay Pacific Logo
7:50 pm - 12:15 am
DCA
-
BKK
41h 25m
2 stops
Cathay Pacific Logo
3:00 pm - 7:05 pm
BKK
-
DCA
39h 05m
2 stops
$948Cathay Pacific
Sat, Mar 21 - Tue, Apr 21

IndiGo flights from Washington, D.C. to Bangkok Suvarnabhumi Airport

Our best IndiGo deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets
IndiGo
Feb 15
IAD1:30 pmWashington, D.C. Dulles Intl
43h 35m
2 stops
BKK9:05 pmBangkok Suvarnabhumi
Feb 23
BKK10:10 amBangkok Suvarnabhumi
45h 10m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
$964
IndiGo
Feb 15
IAD9:15 pmWashington, D.C. Dulles Intl
35h 50m
2 stops
BKK9:05 pmBangkok Suvarnabhumi
Feb 24
BKK10:10 amBangkok Suvarnabhumi
45h 10m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
$972
IndiGo
Feb 15
IAD1:30 pmWashington, D.C. Dulles Intl
43h 35m
2 stops
BKK9:05 pmBangkok Suvarnabhumi
Feb 24
BKK10:10 amBangkok Suvarnabhumi
45h 10m
2 stops
IAD7:20 pmWashington, D.C. Dulles Intl
$979

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
Apr 20
IAD3:10 pmWashington, D.C. Dulles Intl
21h 40m
1 stop
BKK11:50 pmBangkok Suvarnabhumi
Apr 28
BKK9:00 pmBangkok Suvarnabhumi
23h 45m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$848
Etihad Airways
May 4
IAD3:10 pmWashington, D.C. Dulles Intl
40h 00m
1 stop
BKK6:10 pmBangkok Suvarnabhumi
May 20
BKK9:00 pmBangkok Suvarnabhumi
23h 45m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$849
Etihad Airways
Apr 8
IAD3:10 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
BKK6:45 amBangkok Suvarnabhumi
Apr 15
BKK9:55 amBangkok Suvarnabhumi
58h 50m
2 stops
IAD9:45 amWashington, D.C. Dulles Intl
$850

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 February 12, 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 4/20

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Tue 4/28

9:00 pm-9:45 am

1 stop23h 45m

$848

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 5/4

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Mon 5/11

3:05 pm-9:45 am

1 stop29h 40m

$849

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 4/8

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Wed 4/15

9:55 am-9:45 am

2 stops58h 50m

$850

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 4/8

3:10 pm-6:15 am

1 stop28h 05m

Bangkok Suvarnabhumi

Wed 4/22

12:25 pm-9:45 am

2 stops56h 20m

$851

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 5/8

1:20 pm-9:10 pm

1 stop44h 50m

Bangkok Suvarnabhumi

Thu 5/21

10:45 pm-10:50 am

1 stop23h 05m

$856

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 3/12

2:30 pm-4:20 am

1 stop26h 50m

Bangkok Suvarnabhumi

Fri 3/27

5:50 am-12:45 pm

1 stop41h 55m

$858

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 5/4

11:00 am-5:05 am

2 stops31h 05m

Bangkok Suvarnabhumi

Mon 6/1

7:05 am-9:55 pm

2 stops25h 50m

$893

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sat 5/2

11:00 am-5:05 am

2 stops31h 05m

Bangkok Suvarnabhumi

Mon 6/1

7:05 am-9:55 pm

2 stops25h 50m

$932

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 4/26

6:59 pm-10:00 am

2 stops28h 01m

Bangkok Suvarnabhumi

Sat 5/16

3:00 pm-12:30 am

2 stops44h 30m

$941

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sat 3/21

7:50 pm-12:15 am

2 stops41h 25m

Bangkok Suvarnabhumi

Tue 4/21

3:00 pm-7:05 pm

2 stops39h 05m

$948

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 February is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Washington, D.C. averaging around $989.

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 $1,110 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 $1,016 on momondo.

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

You could potentially save up to 16% 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 February 2026, prices for Washington, D.C. to Bangkok Suvarnabhumi Airport flights are approximately 1% 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 45m

Direct flights

None
The fastest flight from Washington, D.C. to Bangkok Suvarnabhumi Airport takes 20h 45m
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 45m.

  • 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 $565Free CancellationRating
7.2
139 reviews
Search Air China flights
IndiGoPriceFrom $639Free CancellationRating
6.8
530 reviews
Search IndiGo flights
Air IndiaPriceFrom $778Free CancellationRating
5.5
2,968 reviews
Search Air India flights
Etihad AirwaysPriceFrom $787Free CancellationRating
7.3
1,393 reviews
Search Etihad Airways flights
Korean AirPriceFrom $802Free CancellationRating
8.4
1,191 reviews
Search Korean Air flights
Qatar AirwaysPriceFrom $818Free CancellationRating
7.4
3,731 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $843Free CancellationRating
7.3
4,211 reviews
Search Turkish Airlines flights
ANAPriceFrom $896Free CancellationRating
8.4
1,090 reviews
Search ANA flights
JetBluePriceFrom $900Free CancellationRating
7.2
2,894 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $920Free CancellationRating
8.0
11,877 reviews
Search Alaska 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
Ayutthaya
Ko Lan
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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