Cheap flights from Washington, D.C. to Bangkok from $459

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 5/3. 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 - 6:45 am
IAD
-
BKK
28h 35m
1 stop
Etihad Airways Logo
8:40 pm - 9:45 am
BKK
-
IAD
24h 05m
1 stop
$871Etihad Airways
mié., may. 6 - mié., may. 27
Etihad Airways Logo
3:10 pm - 6:45 am
IAD
-
BKK
28h 35m
1 stop
Etihad Airways Logo
8:40 pm - 9:45 am
BKK
-
IAD
24h 05m
1 stop
$880Etihad Airways
dom., may. 10 - jue., may. 21
Qatar Airways Logo
9:00 pm - 1:45 pm
IAD
-
BKK
29h 45m
1 stop
Qatar Airways Logo
7:00 pm - 6:20 pm
BKK
-
IAD
34h 20m
1 stop
$895Qatar Airways
lun., may. 11 - lun., may. 25
Multiple Airlines Logo
9:30 pm - 6:55 am
BWI
-
BKK
46h 25m
2 stops
Multiple Airlines Logo
9:00 am - 7:40 pm
BKK
-
BWI
45h 40m
2 stops
$1,072Multiple Airlines
lun., may. 11 - dom., may. 17
Multiple Airlines Logo
9:30 pm - 5:45 pm
BWI
-
BKK
33h 15m
2 stops
Multiple Airlines Logo
9:00 am - 7:45 pm
BKK
-
BWI
45h 45m
2 stops
$1,073Multiple Airlines
sáb., may. 30 - sáb., jun. 6
Qatar Airways Logo
6:00 am - 6:50 am
DCA
-
BKK
37h 50m
2 stops
Qatar Airways Logo
2:30 am - 11:21 pm
BKK
-
DCA
31h 51m
2 stops
$1,075Qatar Airways
mar., may. 12 - jue., may. 28
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
$1,103Air Canada
mié., sep. 9 - mié., sep. 23
Air Canada Logo
11:00 am - 5:05 am
DCA
-
BKK
31h 05m
2 stops
Air Canada Logo
7:05 am - 9:50 pm
BKK
-
DCA
25h 45m
2 stops
$1,108Air Canada
mié., sep. 9 - mié., sep. 23
Singapore Airlines Logo
9:30 am - 8:05 am
DCA
-
BKK
35h 35m
2 stops
Singapore Airlines Logo
9:10 pm - 9:59 pm
BKK
-
DCA
36h 49m
2 stops
$1,120Singapore Airlines
mié., oct. 21 - mié., ene. 20
Singapore Airlines Logo
9:30 am - 11:00 am
DCA
-
BKK
38h 30m
3 stops
Singapore Airlines Logo
8:00 pm - 9:59 pm
BKK
-
DCA
37h 59m
2 stops
$1,133Singapore Airlines
mié., oct. 21 - mié., ene. 20

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 29
IAD9:00 pmWashington, D.C. Dulles Intl
22h 50m
1 stop
BKK6:50 amBangkok Suvarnabhumi
May 29
BKK7:00 pmBangkok Suvarnabhumi
34h 20m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
$895
Qatar Airways
May 4
IAD9:00 pmWashington, D.C. Dulles Intl
22h 55m
1 stop
BKK6:55 amBangkok Suvarnabhumi
May 10
BKK2:30 amBangkok Suvarnabhumi
26h 50m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
$905
Qatar Airways
May 3
IAD9:00 pmWashington, D.C. Dulles Intl
22h 55m
1 stop
BKK6:55 amBangkok Suvarnabhumi
May 14
BKK2:30 amBangkok Suvarnabhumi
26h 50m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
$929

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
May 6
IAD3:10 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
BKK6:45 amBangkok Suvarnabhumi
May 27
BKK8:40 pmBangkok Suvarnabhumi
24h 05m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$871
Etihad Airways
May 2
IAD3:10 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
BKK6:45 amBangkok Suvarnabhumi
May 18
BKK9:00 pmBangkok Suvarnabhumi
23h 45m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$873
Etihad Airways
May 2
IAD3:10 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
BKK6:45 amBangkok Suvarnabhumi
May 18
BKK3:50 pmBangkok Suvarnabhumi
28h 55m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$876

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 abril 27, 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

mié. 5/6

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

mié. 5/27

8:40 pm-9:45 am

1 stop24h 05m

$871

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

dom. 5/10

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

jue. 5/21

8:40 pm-9:45 am

1 stop24h 05m

$880

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

lun. 5/11

9:00 pm-1:45 pm

1 stop29h 45m

Bangkok Suvarnabhumi

lun. 5/25

7:00 pm-6:20 pm

1 stop34h 20m

$895

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

lun. 5/11

9:30 pm-6:55 am

2 stops46h 25m

Bangkok Suvarnabhumi

dom. 5/17

9:00 am-7:40 pm

2 stops45h 40m

$1,072

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

sáb. 5/30

9:30 pm-5:45 pm

2 stops33h 15m

Bangkok Suvarnabhumi

sáb. 6/6

9:00 am-7:45 pm

2 stops45h 45m

$1,073

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

mar. 5/12

6:00 am-6:50 am

2 stops37h 50m

Bangkok Suvarnabhumi

jue. 5/28

2:30 am-11:21 pm

2 stops31h 51m

$1,075

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

mié. 9/9

9:40 am-5:05 am

2 stops32h 25m

Bangkok Suvarnabhumi

mié. 9/23

7:05 am-10:20 am

2 stops38h 15m

$1,103

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

mié. 9/9

11:00 am-5:05 am

2 stops31h 05m

Bangkok Suvarnabhumi

mié. 9/23

7:05 am-9:50 pm

2 stops25h 45m

$1,108

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

mié. 10/21

9:30 am-8:05 am

2 stops35h 35m

Bangkok Suvarnabhumi

mié. 1/20

9:10 pm-9:59 pm

2 stops36h 49m

$1,120

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

mié. 10/21

9:30 am-11:00 am

3 stops38h 30m

Bangkok Suvarnabhumi

mié. 1/20

8:00 pm-9:59 pm

2 stops37h 59m

$1,133

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 $917. The month of April is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Washington, D.C. averaging around $938.

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.

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

As of April 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

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
148 reviews
Search Air China flights
AIR PREMIAPriceFrom $784Free CancellationRating
8.2
87 reviews
Search AIR PREMIA flights
Etihad AirwaysPriceFrom $785Free CancellationRating
7.3
1,433 reviews
Search Etihad Airways flights
Korean AirPriceFrom $802Free CancellationRating
8.4
1,213 reviews
Search Korean Air flights
Qatar AirwaysPriceFrom $818Free CancellationRating
7.4
3,725 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $834Free CancellationRating
7.4
4,335 reviews
Search Turkish Airlines flights
ANAPriceFrom $893Free CancellationRating
8.4
1,195 reviews
Search ANA flights
JetBluePriceFrom $900Free CancellationRating
7.1
2,963 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $920Free CancellationRating
7.9
12,295 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $933Free CancellationRating
7.4
9,660 reviews
Search United Airlines flights

Traveling to a place near Bangkok?

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Pattaya
Ko Samet
Kanchanaburi
Cha-am
Chonburi
Ayutthaya
Ko Lan
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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1 adult
mié. 5/27
mié. 6/3

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