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 22h 23m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 27h 04m. 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 is the most popular carrier 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 44% 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 February 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.

$410 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 $902 to $1,284. The lowest price recently found on this route was $847.

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Enter your travel dates to find the best prices.

3:10 pm - 11:50 am

IAD

BKK

33h 40m

1 stop

9:15 am - 9:45 am

BKK

IAD

35h 30m

1 stop

$847Etihad Airways

Mon, Mar 30 - Wed, Apr 15

3:10 pm - 6:45 am

IAD

BKK

28h 35m

1 stop

9:45 am - 9:45 am

BKK

IAD

35h 00m

1 stop

$849Etihad Airways

Mon, May 11 - Mon, May 18

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

5:50 pm - 9:45 am

BKK

IAD

50h 55m

2 stops

$851Etihad Airways

Tue, Apr 7 - Fri, May 22

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

9:15 am - 9:45 am

BKK

IAD

35h 30m

1 stop

$852Etihad Airways

Mon, Apr 27 - Tue, May 5

9:45 pm - 3:25 pm

IAD

BKK

30h 40m

1 stop

11:15 am - 11:35 am

BKK

IAD

35h 20m

1 stop

$855Turkish Airlines

Sun, Apr 19 - Wed, Apr 22

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

Wed, May 13 - Thu, May 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 8 - Tue, May 19

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

3:05 pm - 9:45 am

BKK

IAD

29h 40m

1 stop

$858Etihad Airways

Thu, May 7 - Mon, May 18

5:22 pm - 6:20 pm

DCA

BKK

37h 58m

2 stops

2:05 am - 11:28 pm

BKK

DCA

32h 23m

2 stops

$967Qatar Airways

Mon, Apr 20 - Wed, May 13

6:37 pm - 10:00 am

DCA

BKK

28h 23m

2 stops

7:35 am - 11:59 pm

BKK

DCA

27h 24m

2 stops

$982Cathay Pacific

Sun, Apr 5 - Wed, May 20

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 24

BWI7:16 pmBaltimore/Washington

34h 24m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

Apr 27

BKK1:10 pmBangkok Suvarnabhumi

27h 34m

2 stops

BWI5:44 amBaltimore/Washington

$899

STARLUX Airlines

Apr 8

IAD7:11 pmWashington, D.C. Dulles Intl

34h 29m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

Apr 20

BKK5:50 pmBangkok Suvarnabhumi

46h 50m

2 stops

IAD5:40 amWashington, D.C. Dulles Intl

$900

STARLUX Airlines

Apr 26

BWI7:04 amBaltimore/Washington

41h 56m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

May 3

BKK1:10 pmBangkok Suvarnabhumi

27h 34m

2 stops

BWI5:44 amBaltimore/Washington

$908

Cathay Pacific flights from Washington, D.C. to Bangkok

Our best Cathay Pacific deals on Washington, D.C. to Bangkok flight tickets

Cathay Pacific

Apr 5

DCA6:37 pmWashington, D.C. Reagan-National

28h 23m

2 stops

BKK10:00 amBangkok Suvarnabhumi

May 20

BKK7:35 amBangkok Suvarnabhumi

27h 24m

2 stops

DCA11:59 pmWashington, D.C. Reagan-National

$982

Cathay Pacific

Apr 6

DCA7:59 pmWashington, D.C. Reagan-National

41h 11m

2 stops

BKK12:10 amBangkok Suvarnabhumi

Jun 1

BKK7:10 pmBangkok Suvarnabhumi

36h 49m

2 stops

DCA8:59 pmWashington, D.C. Reagan-National

$1,064

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Bangkok 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 3/30

3:10 pm-11:50 am

1 stop33h 40m

Bangkok Suvarnabhumi

Wed 4/15

9:15 am-9:45 am

1 stop35h 30m

$847

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 5/11

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Mon 5/18

9:45 am-9:45 am

1 stop35h 00m

$849

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 4/7

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Fri 5/22

5:50 pm-9:45 am

2 stops50h 55m

$851

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 4/27

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Tue 5/5

9:15 am-9:45 am

1 stop35h 30m

$852

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 4/19

9:45 pm-3:25 pm

1 stop30h 40m

Bangkok Suvarnabhumi

Wed 4/22

11:15 am-11:35 am

1 stop35h 20m

$855

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 5/13

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

Fri 5/8

1:20 pm-9:10 pm

1 stop44h 50m

Bangkok Suvarnabhumi

Tue 5/19

10:45 pm-10:50 am

1 stop23h 05m

$857

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 5/7

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Mon 5/18

3:05 pm-9:45 am

1 stop29h 40m

$858

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 4/20

5:22 pm-6:20 pm

2 stops37h 58m

Bangkok Suvarnabhumi

Wed 5/13

2:05 am-11:28 pm

2 stops32h 23m

$967

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 4/5

6:37 pm-10:00 am

2 stops28h 23m

Bangkok Suvarnabhumi

Wed 5/20

7:35 am-11:59 pm

2 stops27h 24m

$982

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 $1,108 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 $1,032 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 45m
Direct flights	None

The fastest flight from Washington, D.C. to Bangkok takes 20h 45m

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 45m.
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 February 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 6.8 538 reviews	Search IndiGo flights
Etihad Airways	PriceFrom $787	Free Cancellation	Rating 7.3 1,406 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,194 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $818	Free Cancellation	Rating 7.4 3,738 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $843	Free Cancellation	Rating 7.3 4,227 reviews	Search Turkish Airlines flights
ANA	PriceFrom $896	Free Cancellation	Rating 8.4 1,097 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,898 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 8.0 11,920 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $933	Free Cancellation	Rating 7.4 9,338 reviews	Search United Airlines 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.

An easier way to manage your Bangkok trip

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Cheap flights from Washington, D.C. to Bangkok from $410

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 4/8. 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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STARLUX Airlines flights from Washington, D.C. to Bangkok

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

Cathay Pacific flights from Washington, D.C. to Bangkok

Our best Cathay Pacific deals on Washington, D.C. to Bangkok flight tickets

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Use the filters below to find and compare flights from Washington, D.C. to Bangkok that are best for you.

See travel insights to Bangkok from

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?

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

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

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

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

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

Fly your favorite airline to Bangkok

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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