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Cheap flights from Bangkok to Washington, D.C. from $489

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bangkok to Washington, D.C. departing on 12/9. 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

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Air China Logo
7:30 pm - 6:30 pmBKK-IAD
35h 00m1 stop
Air China Logo
10:00 pm - 12:10 amIAD-BKK
38h 10m1 stop
$904Air China
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Thu, Dec 25 - Fri, Jan 9
SAUDIA Logo
3:25 pm - 3:45 pmBKK-IAD
35h 20m1 stop
SAUDIA Logo
6:50 pm - 12:10 amIAD-BKK
42h 20m1 stop
$979SAUDIA
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Fri, Apr 3 - Sat, Apr 18
Multiple Airlines Logo
10:50 am - 10:05 amBKK-IAD
34h 15m2 stops
Multiple Airlines Logo
3:35 pm - 11:55 pmIAD-BKK
21h 20m1 stop
$998Multiple Airlines
Find Deal
Wed, Mar 11 - Tue, May 12
Multiple Airlines Logo
3:10 pm - 9:05 amBKK-IAD
29h 55m2 stops
Multiple Airlines Logo
3:35 pm - 11:55 pmIAD-BKK
21h 20m1 stop
$999Multiple Airlines
Find Deal
Thu, Mar 5 - Tue, May 12
Multiple Airlines Logo
9:30 pm - 10:50 amBKK-IAD
24h 20m1 stop
Multiple Airlines Logo
3:35 pm - 6:30 amIAD-BKK
27h 55m1 stop
$1,001Multiple Airlines
Find Deal
Tue, Mar 24 - Tue, May 12
Multiple Airlines Logo
10:50 am - 10:05 amBKK-IAD
34h 15m2 stops
Multiple Airlines Logo
3:35 pm - 11:55 pmIAD-BKK
21h 20m1 stop
$1,003Multiple Airlines
Find Deal
Tue, Mar 10 - Tue, May 12
United Airlines Logo
3:40 pm - 2:14 pmBKK-DCA
33h 34m3 stops
United Airlines Logo
7:59 pm - 4:35 amDCA-BKK
45h 36m2 stops
$1,055United Airlines
Find Deal
Fri, Apr 3 - Sat, Apr 18
United Airlines Logo
4:55 pm - 10:56 amBKK-DCA
30h 01m3 stops
United Airlines Logo
6:00 am - 12:20 amDCA-BKK
30h 20m2 stops
$1,110United Airlines
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Fri, Dec 19 - Tue, Jan 6
Delta Logo
12:55 am - 11:47 pmBKK-DCA
33h 52m2 stops
Delta Logo
6:30 am - 12:55 amDCA-BKK
31h 25m2 stops
$1,111Delta
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Tue, Mar 10 - Sun, Mar 15
Delta Logo
12:55 am - 11:47 pmBKK-DCA
33h 52m2 stops
Delta Logo
6:00 am - 12:45 amDCA-BKK
31h 45m2 stops
$1,112Delta
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Tue, Mar 10 - Sun, Mar 15

Air Canada flights from Bangkok to Washington, D.C.

Our best Air Canada deals on Bangkok to Washington, D.C. flight tickets
Air Canada
Feb 18
BKK8:00 amBangkok Suvarnabhumi
24h 29m
2 stops
IAD8:29 pmWashington, D.C. Dulles Intl
Feb 22
IAD9:45 amWashington, D.C. Dulles Intl
32h 45m
2 stops
BKK6:30 amBangkok Suvarnabhumi
$1,054
Find similar
Air Canada
Mar 10
BKK7:15 amBangkok Suvarnabhumi
43h 54m
2 stops
IAD4:09 pmWashington, D.C. Dulles Intl
May 12
IAD10:05 pmWashington, D.C. Dulles Intl
44h 10m
2 stops
BKK5:15 amBangkok Suvarnabhumi
$1,101
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Air Canada
Mar 11
BKK8:00 amBangkok Suvarnabhumi
42h 46m
2 stops
IAD3:46 pmWashington, D.C. Dulles Intl
May 12
IAD1:00 pmWashington, D.C. Dulles Intl
53h 15m
2 stops
BKK5:15 amBangkok Suvarnabhumi
$1,103
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Korean Air flights from Bangkok to Washington, D.C.

Our best Korean Air deals on Bangkok to Washington, D.C. flight tickets
Korean Air
Feb 27
BKK12:55 amBangkok Suvarnabhumi
20h 55m
1 stop
IAD9:50 amWashington, D.C. Dulles Intl
May 16
IAD1:15 pmWashington, D.C. Dulles Intl
37h 00m
1 stop
BKK1:15 pmBangkok Suvarnabhumi
$1,043
Find similar
Korean Air
Feb 27
BKK12:55 amBangkok Suvarnabhumi
20h 55m
1 stop
IAD9:50 amWashington, D.C. Dulles Intl
May 16
IAD1:15 pmWashington, D.C. Dulles Intl
37h 00m
1 stop
BKK1:15 pmBangkok Suvarnabhumi
$1,045
Find similar
Korean Air
Feb 16
BKK9:30 pmBangkok Suvarnabhumi
24h 20m
1 stop
IAD9:50 amWashington, D.C. Dulles Intl
Mar 22
IAD12:50 pmWashington, D.C. Dulles Intl
45h 40m
1 stop
BKK9:30 pmBangkok Suvarnabhumi
$1,047
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momondo Fare Finder

 
Customize your flight search to find flights from Bangkok to Washington, D.C. 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 November 26, 2025.
Use the filters below to find and compare flights from Bangkok to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 12/25

7:30 pm-6:30 pm

1 stop35h 00m

Washington, D.C. Dulles Intl

Fri 1/9

10:00 pm-12:10 am

1 stop38h 10m

$904

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 4/3

3:25 pm-3:45 pm

1 stop35h 20m

Washington, D.C. Dulles Intl

Sat 4/18

6:50 pm-12:10 am

1 stop42h 20m

$979

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 3/11

10:50 am-10:05 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Tue 5/12

3:35 pm-11:55 pm

1 stop21h 20m

$998

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 3/5

3:10 pm-9:05 am

2 stops29h 55m

Washington, D.C. Dulles Intl

Tue 5/12

3:35 pm-11:55 pm

1 stop21h 20m

$999

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 3/24

9:30 pm-10:50 am

1 stop24h 20m

Washington, D.C. Dulles Intl

Tue 5/12

3:35 pm-6:30 am

1 stop27h 55m

$1,001

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 3/10

10:50 am-10:05 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Tue 5/12

3:35 pm-11:55 pm

1 stop21h 20m

$1,003

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 4/3

3:40 pm-2:14 pm

3 stops33h 34m

Washington, D.C. Reagan-National

Sat 4/18

7:59 pm-4:35 am

2 stops45h 36m

$1,055

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 12/19

4:55 pm-10:56 am

3 stops30h 01m

Washington, D.C. Reagan-National

Tue 1/6

6:00 am-12:20 am

2 stops30h 20m

$1,110

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 3/10

12:55 am-11:47 pm

2 stops33h 52m

Washington, D.C. Reagan-National

Sun 3/15

6:30 am-12:55 am

2 stops31h 25m

$1,111

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Tue 3/10

12:55 am-11:47 pm

2 stops33h 52m

Washington, D.C. Reagan-National

Sun 3/15

6:00 am-12:45 am

2 stops31h 45m

$1,112

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Bangkok to Washington, D.C.

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 Bangkok and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The month of October is, on average, the cheapest month to fly to Washington, D.C. from Bangkok, with most prices found around $922. If you’re not able to fly to Washington, D.C. in October, then July is your next best option. Flight prices from Bangkok to Washington, D.C. during July average around $1,063.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Bangkok is on a Sunday. momondo users have found tickets for Sunday departures for as low as $1,114. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Bangkok to Washington, D.C. for around $1,287.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the morning is the cheapest time of day to fly from Bangkok to Washington, D.C. when you can find flight prices for as low as $1,121. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $1,279. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $1,226 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Bangkok for as low as $1,011 on momondo.

Cheap Bangkok to Washington, D.C. flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bangkok to Washington, D.C.

Fastest flight time

22h 52m

Direct flights

None
The fastest flight from Bangkok to Washington, D.C. takes 22h 52m
There are no direct flights from Bangkok to Washington, D.C.. There are no popular flight routes from Bangkok to Washington, D.C..
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  • How far is Bangkok to Washington, D.C. by plane?

    Washington, D.C. is 8788.5 mi away from Bangkok. Typically, this will take 20h 55m by plane in normal conditions.

  • When did momondo last update prices for flights from Bangkok to Washington, D.C.?

    Prices for flights from Bangkok to Washington, D.C. refresh daily.

  • How many operators does momondo search for flights from Bangkok to Washington, D.C.?

  • How old do you have to be to fly from Bangkok to Washington, D.C.?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Bangkok to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Bangkok to Washington, D.C.

Compare and see reviews for airlines that fly from Bangkok to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $992Free CancellationRating
7.4
9,050 reviews
Search United Airlines flights
ANAPriceFrom $1,011Free CancellationRating
8.4
1,011 reviews
Search ANA flights
Korean AirPriceFrom $1,033Free CancellationRating
8.4
1,172 reviews
Search Korean Air flights
Qatar AirwaysPriceFrom $1,143Free CancellationRating
7.4
3,677 reviews
Search Qatar Airways flights
EmiratesPriceFrom $1,371Free CancellationRating
8.1
3,422 reviews
Search Emirates flights
American AirlinesPriceFrom $1,401Free CancellationRating
7.2
11,037 reviews
Search American Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie
Linthicum Heights
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Bangkok to Washington, D.C.?

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 Washington, D.C. from Bangkok.

Can I find flights from Bangkok to Washington, D.C. with flexible booking policies on momondo?

All flight searches from Bangkok to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Bangkok to Washington, D.C.?

Once all potential Bangkok to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Bangkok to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Bangkok. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport