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 25m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 26h 50m. Keep in mind that layovers or delays could extend your travel time.

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 45% 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.

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

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

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.

$419 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 $904 to $1,266. The lowest price recently found on this route was $848.

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

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:35 pm - 6:00 pm

IAD

BKK

39h 25m

1 stop

8:40 pm - 10:05 am

BKK

IAD

24h 25m

1 stop

$848Etihad Airways

Mon, Mar 9 - Wed, Mar 18

3:10 pm - 6:10 pm

IAD

BKK

40h 00m

1 stop

9:00 pm - 9:45 am

BKK

IAD

23h 45m

1 stop

$849Etihad Airways

Mon, May 4 - Wed, May 20

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

Sun, May 17 - Thu, May 28

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

Wed, Jun 10 - Thu, Jun 18

2:30 pm - 4:20 am

IAD

BKK

26h 50m

1 stop

5:50 am - 12:45 pm

BKK

IAD

41h 55m

1 stop

$858Turkish Airlines

Wed, Mar 18 - Fri, Mar 27

2:30 pm - 3:05 pm

IAD

BKK

37h 35m

1 stop

10:30 am - 12:45 pm

BKK

IAD

37h 15m

1 stop

$859Turkish Airlines

Wed, Mar 18 - Wed, Mar 25

11:00 am - 5:05 am

DCA

BKK

31h 05m

2 stops

7:05 am - 9:55 pm

BKK

DCA

25h 50m

2 stops

$893Air India

Mon, May 4 - Mon, Jun 1

11:00 am - 5:05 am

DCA

BKK

31h 05m

2 stops

7:05 am - 9:55 pm

BKK

DCA

25h 50m

2 stops

$932Air India

Sat, May 2 - Mon, Jun 1

6:59 pm - 11:05 am

DCA

BKK

29h 06m

2 stops

11:00 am - 12:30 am

BKK

DCA

24h 30m

2 stops

$941Cathay Pacific

Sun, Apr 26 - Sun, May 10

6:37 pm - 11:15 am

DCA

BKK

29h 38m

2 stops

11:00 am - 11:59 pm

BKK

DCA

23h 59m

2 stops

$970Cathay Pacific

Mon, Mar 9 - Wed, Apr 15

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 7

BWI7:04 pmBaltimore/Washington

34h 36m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

Apr 20

BKK5:50 pmBangkok Suvarnabhumi

46h 54m

2 stops

BWI5:44 amBaltimore/Washington

$908

STARLUX Airlines

Apr 6

BWI7:04 pmBaltimore/Washington

29h 56m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Jun 1

BKK1:10 pmBangkok Suvarnabhumi

28h 18m

2 stops

BWI6:28 amBaltimore/Washington

$909

STARLUX Airlines

May 5

BWI7:04 amBaltimore/Washington

41h 56m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

May 20

BKK1:10 pmBangkok Suvarnabhumi

28h 18m

2 stops

BWI6:28 amBaltimore/Washington

$937

Etihad Airways flights from Washington, D.C. to Bangkok

Our best Etihad Airways deals on Washington, D.C. to Bangkok flight tickets

Etihad Airways

Mar 9

IAD3:35 pmWashington, D.C. Dulles Intl

40h 10m

1 stop

BKK6:45 pmBangkok Suvarnabhumi

Mar 18

BKK8:40 pmBangkok Suvarnabhumi

24h 25m

1 stop

IAD10:05 amWashington, D.C. Dulles Intl

$848

Etihad Airways

May 4

IAD3:10 pmWashington, D.C. Dulles Intl

40h 00m

1 stop

BKK6:10 pmBangkok Suvarnabhumi

May 20

BKK9:00 pmBangkok Suvarnabhumi

23h 45m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$849

Etihad Airways

Apr 8

IAD3:10 pmWashington, D.C. Dulles Intl

21h 40m

1 stop

BKK11:50 pmBangkok Suvarnabhumi

Apr 15

BKK9:55 amBangkok Suvarnabhumi

58h 50m

2 stops

IAD9:45 amWashington, D.C. Dulles Intl

$850

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 3/9

3:35 pm-6:00 pm

1 stop39h 25m

Bangkok Suvarnabhumi

Wed 3/18

8:40 pm-10:05 am

1 stop24h 25m

$848

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 5/4

3:10 pm-6:10 pm

1 stop40h 00m

Bangkok Suvarnabhumi

Wed 5/20

9:00 pm-9:45 am

1 stop23h 45m

$849

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 5/17

1:20 pm-9:10 pm

1 stop44h 50m

Bangkok Suvarnabhumi

Thu 5/28

10:45 pm-10:50 am

1 stop23h 05m

$856

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 6/10

1:20 pm-9:10 pm

1 stop44h 50m

Bangkok Suvarnabhumi

Thu 6/18

10:45 pm-10:50 am

1 stop23h 05m

$857

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 3/18

2:30 pm-4:20 am

1 stop26h 50m

Bangkok Suvarnabhumi

Fri 3/27

5:50 am-12:45 pm

1 stop41h 55m

$858

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 3/18

2:30 pm-3:05 pm

1 stop37h 35m

Bangkok Suvarnabhumi

Wed 3/25

10:30 am-12:45 pm

1 stop37h 15m

$859

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 5/4

11:00 am-5:05 am

2 stops31h 05m

Bangkok Suvarnabhumi

Mon 6/1

7:05 am-9:55 pm

2 stops25h 50m

$893

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sat 5/2

11:00 am-5:05 am

2 stops31h 05m

Bangkok Suvarnabhumi

Mon 6/1

7:05 am-9:55 pm

2 stops25h 50m

$932

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 4/26

6:59 pm-11:05 am

2 stops29h 06m

Bangkok Suvarnabhumi

Sun 5/10

11:00 am-12:30 am

2 stops24h 30m

$941

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 3/9

6:37 pm-11:15 am

2 stops29h 38m

Bangkok Suvarnabhumi

Wed 4/15

11:00 am-11:59 pm

2 stops23h 59m

$970

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 February instead. Flights to Bangkok in February, while not as cheap as those in September, still average around $989.

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 $1,110 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 $1,016 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 25m
Direct flights	None

The fastest flight from Washington, D.C. to Bangkok takes 20h 25m

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 25m.
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 6.8 530 reviews	Search IndiGo flights
Air India	PriceFrom $778	Free Cancellation	Rating 5.5 2,968 reviews	Search Air India flights
Etihad Airways	PriceFrom $787	Free Cancellation	Rating 7.3 1,393 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,191 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $818	Free Cancellation	Rating 7.4 3,731 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $843	Free Cancellation	Rating 7.3 4,211 reviews	Search Turkish Airlines flights
ANA	PriceFrom $896	Free Cancellation	Rating 8.4 1,090 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,894 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 8.0 11,877 reviews	Search Alaska 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 $419

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 2/16. 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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Filter for what you want

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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

Etihad Airways flights from Washington, D.C. to Bangkok

Our best Etihad Airways 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

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