How long does it take to fly to Bangkok?

Flight times from Washington, D.C. to Bangkok vary, but if you’re flying out of Washington, D.C. and flying into Bangkok Suvarnabhumi Airport (one of the most popular routes), then the duration is 23h 02m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 29h 44m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Washington, D.C. to Bangkok?

Etihad Airways, United Airlines, and Qatar Airways are the most popular carriers operating from Washington, D.C. to Bangkok

What airlines fly to Bangkok?

Qatar Airways, Etihad Airways and Turkish Airlines are the top three most popular airlines that fly to Bangkok from Washington, D.C. according to our data. Qatar Airways is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 18 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

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

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

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

The number of operators available for flights from Washington, D.C. to Bangkok is 18 as of March 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Bangkok.

What documentation or ID do you need to fly to Bangkok?

The travel and health documents you'll need for your trip to Bangkok 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$406 Cheap Flights from Washington, D.C. to Bangkok in 2026

Q: What is the typical price of a round-trip flight between Washington, D.C. and Bangkok?

Prices are currently low for flights on this route. Typical prices usually range from $929 to $1,271. The lowest price recently found on this route was $851.

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Find the cheapest flights from Washington, D.C. to Bangkok

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One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:10 pm - 6:45 am

IAD

BKK

28h 35m

1 stop

5:50 pm - 9:45 am

BKK

IAD

50h 55m

2 stops

$851Etihad Airways

Wed, Apr 29 - Fri, May 29

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

9:45 am - 9:45 am

BKK

IAD

35h 00m

1 stop

$852Etihad Airways

Sun, Apr 19 - Sat, May 9

3:10 pm - 6:45 am

IAD

BKK

28h 35m

1 stop

9:00 pm - 9:45 am

BKK

IAD

23h 45m

1 stop

$854Etihad Airways

Mon, Mar 30 - Sat, May 9

1:20 pm - 9:10 pm

IAD

BKK

44h 50m

1 stop

10:45 pm - 10:50 am

BKK

IAD

23h 05m

1 stop

$856AIR PREMIA

Fri, Jun 12 - Sun, Jun 21

1:20 pm - 9:10 pm

IAD

BKK

44h 50m

1 stop

10:45 pm - 10:50 am

BKK

IAD

23h 05m

1 stop

$857AIR PREMIA

Fri, May 1 - Sun, May 24

1:20 pm - 9:45 am

IAD

BKK

33h 25m

1 stop

10:20 pm - 11:45 am

BKK

IAD

25h 25m

1 stop

$862Turkish Airlines

Mon, Aug 10 - Thu, Dec 10

7:16 pm - 12:00 pm

BWI

BKK

29h 44m

2 stops

1:10 pm - 5:44 am

BKK

BWI

27h 34m

2 stops

$895Multiple Airlines

Thu, Apr 23 - Wed, May 6

7:16 pm - 12:00 pm

BWI

BKK

29h 44m

2 stops

1:10 pm - 5:44 am

BKK

BWI

27h 34m

2 stops

$914Multiple Airlines

Wed, Apr 22 - Mon, May 4

7:31 pm - 10:00 am

DCA

BKK

27h 29m

2 stops

11:00 am - 12:55 am

BKK

DCA

24h 55m

2 stops

$948Cathay Pacific

Wed, Aug 26 - Sun, Sep 13

12:31 pm - 12:10 am

DCA

BKK

24h 39m

2 stops

7:15 pm - 3:55 pm

BKK

DCA

32h 40m

2 stops

$963Cathay Pacific

Mon, Aug 10 - Tue, Nov 10

AIR PREMIA flights from Washington, D.C. to Bangkok

Our best AIR PREMIA deals on Washington, D.C. to Bangkok flight tickets

AIR PREMIA

May 1

IAD1:20 pmWashington, D.C. Dulles Intl

44h 50m

1 stop

BKK9:10 pmBangkok Suvarnabhumi

May 24

BKK10:45 pmBangkok Suvarnabhumi

23h 05m

1 stop

IAD10:50 amWashington, D.C. Dulles Intl

$857

AIR PREMIA

May 22

IAD1:20 pmWashington, D.C. Dulles Intl

44h 50m

1 stop

BKK9:10 pmBangkok Suvarnabhumi

Jun 2

BKK10:45 pmBangkok Suvarnabhumi

23h 05m

1 stop

IAD10:50 amWashington, D.C. Dulles Intl

$869

AIR PREMIA

May 24

IAD1:20 pmWashington, D.C. Dulles Intl

44h 50m

1 stop

BKK9:10 pmBangkok Suvarnabhumi

Jun 2

BKK10:45 pmBangkok Suvarnabhumi

23h 05m

1 stop

IAD10:50 amWashington, D.C. Dulles Intl

$877

STARLUX Airlines flights from Washington, D.C. to Bangkok

Our best STARLUX Airlines deals on Washington, D.C. to Bangkok flight tickets

STARLUX Airlines

Apr 29

BWI7:16 pmBaltimore/Washington

34h 24m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

May 7

BKK1:10 pmBangkok Suvarnabhumi

27h 34m

2 stops

BWI5:44 amBaltimore/Washington

$899

STARLUX Airlines

Apr 29

IAD7:20 pmWashington, D.C. Dulles Intl

34h 20m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

May 7

BKK1:10 pmBangkok Suvarnabhumi

27h 40m

2 stops

IAD5:50 amWashington, D.C. Dulles Intl

$909

STARLUX Airlines

Apr 21

BWI7:11 pmBaltimore/Washington

29h 49m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

May 3

BKK5:50 pmBangkok Suvarnabhumi

46h 54m

2 stops

BWI5:44 amBaltimore/Washington

$918

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 4/29

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Fri 5/29

5:50 pm-9:45 am

2 stops50h 55m

$851

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 4/19

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Sat 5/9

9:45 am-9:45 am

1 stop35h 00m

$852

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 3/30

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Sat 5/9

9:00 pm-9:45 am

1 stop23h 45m

$854

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 6/12

1:20 pm-9:10 pm

1 stop44h 50m

Bangkok Suvarnabhumi

Sun 6/21

10:45 pm-10:50 am

1 stop23h 05m

$856

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 5/1

1:20 pm-9:10 pm

1 stop44h 50m

Bangkok Suvarnabhumi

Sun 5/24

10:45 pm-10:50 am

1 stop23h 05m

$857

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 8/10

1:20 pm-9:45 am

1 stop33h 25m

Bangkok Suvarnabhumi

Thu 12/10

10:20 pm-11:45 am

1 stop25h 25m

$862

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Thu 4/23

7:16 pm-12:00 pm

2 stops29h 44m

Bangkok Suvarnabhumi

Wed 5/6

1:10 pm-5:44 am

2 stops27h 34m

$895

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Wed 4/22

7:16 pm-12:00 pm

2 stops29h 44m

Bangkok Suvarnabhumi

Mon 5/4

1:10 pm-5:44 am

2 stops27h 34m

$914

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 8/26

7:31 pm-10:00 am

2 stops27h 29m

Bangkok Suvarnabhumi

Sun 9/13

11:00 am-12:55 am

2 stops24h 55m

$948

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 8/10

12:31 pm-12:10 am

2 stops24h 39m

Bangkok Suvarnabhumi

Tue 11/10

7:15 pm-3:55 pm

2 stops32h 40m

$963

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Washington, D.C. and Bangkok?

What is the cheapest month to fly to Bangkok?

If you aren’t able to travel during the month of September, then book flights to Bangkok from Washington, D.C. during January instead. Flights to Bangkok in January, while not as cheap as those in September, still average around $990.

How far in advance should I book a flight to Bangkok?

You are more likely to see cheaper flights to Bangkok from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,106 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Washington, D.C. for as low as $1,011 on momondo.

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

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

Fastest flight time	20h 50m
Direct flights	None

The fastest flight from Washington, D.C. to Bangkok takes 20h 50m

There are no direct flights from Washington, D.C. to Bangkok. There are no popular flight routes from Washington, D.C. to Bangkok.

Search flight deals

How far is Washington, D.C. to Bangkok by plane?
The straight-line distance from Washington, D.C. to Bangkok is 8788.5 mi. In terms of flight time, this usually takes a little over 20h 50m.
When did momondo last update prices for flights from Washington, D.C. to Bangkok?
Prices for flights from Washington, D.C. to Bangkok are updated daily.
How many operators does momondo search for flights from Washington, D.C. to Bangkok?
The number of operators available for flights from Washington, D.C. to Bangkok is 18 as of March 2026.
How old do you have to be to fly from Washington, D.C. to Bangkok?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Bangkok.
What documentation or ID do you need to fly to Bangkok?
The travel and health documents you'll need for your trip to Bangkok 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Compare and see reviews for airlines that fly from Washington, D.C. to Bangkok with momondo

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom $565	Free Cancellation	Rating 7.2 139 reviews	Search Air China flights
IndiGo	PriceFrom $639	Free Cancellation	Rating 6.8 541 reviews	Search IndiGo flights
AIR PREMIA	PriceFrom $782	Free Cancellation	Rating 8.2 81 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $787	Free Cancellation	Rating 7.3 1,424 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,195 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $818	Free Cancellation	Rating 7.4 3,745 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $835	Free Cancellation	Rating 7.3 4,243 reviews	Search Turkish Airlines flights
Air Canada	PriceFrom $845	Free Cancellation	Rating 7.1 10,776 reviews	Search Air Canada flights
ANA	PriceFrom $896	Free Cancellation	Rating 8.4 1,110 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,897 reviews	Search JetBlue flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Bangkok. momondo saves you time and could save you money on your trip.

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

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

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

Once you have performed a search for Washington, D.C. to Bangkok flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Washington, D.C. to Bangkok now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bangkok and let you know when they change.

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Cheap flights from Washington, D.C. to Bangkok from $406

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 4/22. 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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AIR PREMIA flights from Washington, D.C. to Bangkok

Our best AIR PREMIA deals on Washington, D.C. to Bangkok flight tickets

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Our best STARLUX Airlines deals on Washington, D.C. to Bangkok flight tickets

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

What is the typical price of a round-trip flight between Washington, D.C. and Bangkok?

What is the cheapest month to fly to Bangkok?

How far in advance should I book a flight to Bangkok?

What is the cheapest airline that flies from Washington, D.C. to Bangkok?

What airlines fly to Bangkok?

How long does it take to fly to Bangkok?

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

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

Fastest flight time

Direct flights

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

Compare and see reviews for airlines that fly from Washington, D.C. to Bangkok with momondo

Why use momondo?

An easier way to manage your Bangkok 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Airports listed have a maximum distance of 15.4 mi from Bangkok

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