Cheap flights from Washington, D.C. to Bangkok from $483

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 8/15. 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
3:10 pm - 11:50 am
IAD
-
BKK
33h 40m
1 stop
Etihad Airways Logo
3:15 am - 9:45 am
BKK
-
IAD
41h 30m
1 stop
$886Etihad Airways
Thu, Sep 3 - Wed, Sep 9
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
$887Etihad Airways
Sat, Aug 29 - Sun, Oct 4
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
$888Etihad Airways
Mon, Sep 7 - Sat, Oct 10
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
$889Etihad Airways
Thu, Sep 10 - Thu, Oct 8
Etihad Airways Logo
3:10 pm - 6:45 am
IAD
-
BKK
28h 35m
1 stop
Etihad Airways Logo
3:05 pm - 9:45 am
BKK
-
IAD
29h 40m
1 stop
$891Etihad Airways
Sun, Sep 6 - Tue, Sep 15
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
$893Etihad Airways
Sat, Sep 5 - Sun, Sep 13
Multiple Airlines Logo
9:35 pm - 5:45 pm
BWI
-
BKK
33h 10m
2 stops
Multiple Airlines Logo
9:00 am - 7:40 pm
BKK
-
BWI
45h 40m
2 stops
$1,056Multiple Airlines
Sun, May 31 - Mon, Jun 8
Air Canada Logo
9:40 am - 5:05 am
DCA
-
BKK
32h 25m
2 stops
Air Canada Logo
7:05 am - 9:50 pm
BKK
-
DCA
25h 45m
2 stops
$1,071Air Canada
Wed, Sep 9 - Wed, Sep 23
Air Canada Logo
12:40 pm - 5:05 am
DCA
-
BKK
29h 25m
2 stops
Air Canada Logo
7:05 am - 10:20 am
BKK
-
DCA
38h 15m
2 stops
$1,077Air Canada
Mon, Sep 7 - Wed, Oct 7
Air Canada Logo
12:40 pm - 5:05 am
DCA
-
BKK
53h 25m
2 stops
Air Canada Logo
7:45 am - 9:50 pm
BKK
-
DCA
25h 05m
2 stops
$1,090Air Canada
Sun, Sep 27 - Tue, Oct 6

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

Our best Gulf Air deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets
Gulf Air
Jun 4
DCA7:35 pmWashington, D.C. Reagan-National
51h 10m
2 stops
BKK9:45 amBangkok Suvarnabhumi
Jun 18
BKK8:15 pmBangkok Suvarnabhumi
37h 59m
2 stops
DCA11:14 pmWashington, D.C. Reagan-National
$1,215
Gulf Air
Jun 4
DCA7:35 pmWashington, D.C. Reagan-National
51h 10m
2 stops
BKK9:45 amBangkok Suvarnabhumi
Jun 18
BKK8:15 pmBangkok Suvarnabhumi
37h 59m
2 stops
DCA11:14 pmWashington, D.C. Reagan-National
$1,220

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

Our best ANA deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets
ANA
Aug 8
DCA12:40 pmWashington, D.C. Reagan-National
29h 25m
2 stops
BKK5:05 amBangkok Suvarnabhumi
Aug 14
BKK7:45 amBangkok Suvarnabhumi
37h 33m
2 stops
DCA10:18 amWashington, D.C. Reagan-National
$1,278
ANA
Jul 29
DCA9:40 amWashington, D.C. Reagan-National
25h 15m
2 stops
BKK9:55 pmBangkok Suvarnabhumi
Aug 12
BKK7:45 amBangkok Suvarnabhumi
25h 03m
2 stops
DCA9:48 pmWashington, D.C. Reagan-National
$1,294

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 May 18, 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

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 9/3

3:10 pm-11:50 am

1 stop33h 40m

Bangkok Suvarnabhumi

Wed 9/9

3:15 am-9:45 am

1 stop41h 30m

$886

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 8/29

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Sun 10/4

9:15 am-9:45 am

1 stop35h 30m

$887
Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 9/7

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Sat 10/10

9:00 pm-9:45 am

1 stop23h 45m

$888

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 9/10

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Thu 10/8

9:00 pm-9:45 am

1 stop23h 45m

$889

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 9/6

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Tue 9/15

3:05 pm-9:45 am

1 stop29h 40m

$891

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 9/5

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Sun 9/13

3:05 pm-9:45 am

1 stop29h 40m

$893

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sun 5/31

9:35 pm-5:45 pm

2 stops33h 10m

Bangkok Suvarnabhumi

Mon 6/8

9:00 am-7:40 pm

2 stops45h 40m

$1,056

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-9:50 pm

2 stops25h 45m

$1,071

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 9/7

12:40 pm-5:05 am

2 stops29h 25m

Bangkok Suvarnabhumi

Wed 10/7

7:05 am-10:20 am

2 stops38h 15m

$1,077

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 9/27

12:40 pm-5:05 am

2 stops53h 25m

Bangkok Suvarnabhumi

Tue 10/6

7:45 am-9:50 pm

2 stops25h 05m

$1,090

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 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 $501.

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 $1,080 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 $963 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 May 2026, prices for Washington, D.C. to Bangkok Suvarnabhumi Airport flights are approximately 24% 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
151 reviews
Search Air China flights
AIR PREMIAPriceFrom $784Free CancellationRating
8.0
92 reviews
Search AIR PREMIA flights
Etihad AirwaysPriceFrom $785Free CancellationRating
7.3
1,439 reviews
Search Etihad Airways flights
Korean AirPriceFrom $802Free CancellationRating
8.4
1,217 reviews
Search Korean Air flights
Qatar AirwaysPriceFrom $815Free CancellationRating
7.4
3,726 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $833Free CancellationRating
7.4
4,377 reviews
Search Turkish Airlines flights
ANAPriceFrom $893Free CancellationRating
8.3
1,211 reviews
Search ANA flights
JetBluePriceFrom $900Free CancellationRating
7.2
2,980 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $920Free CancellationRating
7.9
12,378 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $933Free CancellationRating
7.4
9,735 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
Ayutthaya
Ko Lan
Pak Chong
Phetchaburi
Sattahip

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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