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 35m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 27h 08m. 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, Air India, and IndiGo 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 45% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 17 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 17 as of January 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.

$393 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 $928 to $1,310. The lowest price recently found on this route was $857.

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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.

2:35 pm - 11:45 am

IAD

BKK

33h 10m

1 stop

8:05 pm - 10:05 am

BKK

IAD

25h 00m

1 stop

$857Etihad Airways

Mon, Feb 16 - Wed, Mar 11

2:30 pm - 4:20 am

IAD

BKK

26h 50m

1 stop

11:15 pm - 8:20 pm

BKK

IAD

32h 05m

1 stop

$859Turkish Airlines

Sat, Mar 14 - Thu, Mar 19

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

9:45 am - 9:45 am

BKK

IAD

35h 00m

1 stop

$860Etihad Airways

Sat, Apr 4 - Wed, Apr 22

3:35 pm - 11:25 pm

IAD

BKK

20h 50m

1 stop

8:40 pm - 10:05 am

BKK

IAD

24h 25m

1 stop

$861Etihad Airways

Fri, Mar 13 - Fri, Mar 20

2:35 pm - 11:45 am

IAD

BKK

33h 10m

1 stop

8:05 am - 9:05 am

BKK

IAD

61h 00m

2 stops

$862Etihad Airways

Wed, Feb 11 - Wed, Feb 18

10:15 pm - 3:05 pm

IAD

BKK

29h 50m

1 stop

10:45 pm - 11:35 am

BKK

IAD

23h 50m

1 stop

$873Turkish Airlines

Sat, Mar 21 - Tue, Mar 31

8:20 am - 11:55 pm

DCA

BKK

28h 35m

2 stops

9:35 pm - 2:14 pm

BKK

DCA

27h 39m

2 stops

$922ANA

Mon, May 4 - Mon, May 11

6:05 am - 12:45 am

DCA

BKK

30h 40m

2 stops

9:40 am - 11:35 pm

BKK

DCA

24h 55m

2 stops

$930Delta

Mon, Feb 16 - Mon, Mar 9

11:30 am - 9:35 am

DCA

BKK

35h 05m

3 stops

7:00 am - 8:38 pm

BKK

DCA

24h 38m

2 stops

$938United Airlines

Mon, Jul 27 - Wed, Sep 2

7:30 am - 4:35 am

DCA

BKK

34h 05m

2 stops

7:00 am - 9:31 pm

BKK

DCA

25h 31m

2 stops

$939United Airlines

Mon, Apr 6 - Tue, Apr 21

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

Our best Air China deals on Washington, D.C. to Bangkok flight tickets

Air China

Mar 6

IAD10:00 pmWashington, D.C. Dulles Intl

38h 10m

1 stop

BKK12:10 amBangkok Suvarnabhumi

Mar 12

BKK1:30 amBangkok Suvarnabhumi

29h 00m

1 stop

IAD7:30 pmWashington, D.C. Dulles Intl

$884

Air China

Feb 10

BWI8:00 amBaltimore/Washington

39h 25m

1 stop

BKK11:25 amBangkok Suvarnabhumi

Mar 11

BKK4:55 pmBangkok Suvarnabhumi

25h 24m

2 stops

BWI7:19 amBaltimore/Washington

$1,163

ANA flights from Washington, D.C. to Bangkok

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

ANA

Feb 9

IAD11:10 amWashington, D.C. Dulles Intl

31h 20m

1 stop

BKK6:30 amBangkok Suvarnabhumi

Feb 18

BKK2:25 pmBangkok Suvarnabhumi

30h 45m

1 stop

IAD9:10 amWashington, D.C. Dulles Intl

$903

ANA

Feb 17

IAD11:10 amWashington, D.C. Dulles Intl

31h 20m

1 stop

BKK6:30 amBangkok Suvarnabhumi

Mar 3

BKK2:25 pmBangkok Suvarnabhumi

30h 45m

1 stop

IAD9:10 amWashington, D.C. Dulles Intl

$913

ANA

Feb 1

DCA2:00 pmWashington, D.C. Reagan-National

27h 10m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Feb 18

BKK10:25 pmBangkok Suvarnabhumi

26h 42m

2 stops

DCA1:07 pmWashington, D.C. Reagan-National

$959

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 2/16

2:35 pm-11:45 am

1 stop33h 10m

Bangkok Suvarnabhumi

Wed 3/11

8:05 pm-10:05 am

1 stop25h 00m

$857

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 3/14

2:30 pm-4:20 am

1 stop26h 50m

Bangkok Suvarnabhumi

Thu 3/19

11:15 pm-8:20 pm

1 stop32h 05m

$859

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 4/4

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Wed 4/22

9:45 am-9:45 am

1 stop35h 00m

$860

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 3/13

3:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Fri 3/20

8:40 pm-10:05 am

1 stop24h 25m

$861

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 2/11

2:35 pm-11:45 am

1 stop33h 10m

Bangkok Suvarnabhumi

Wed 2/18

8:05 am-9:05 am

2 stops61h 00m

$862

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 3/21

10:15 pm-3:05 pm

1 stop29h 50m

Bangkok Suvarnabhumi

Tue 3/31

10:45 pm-11:35 am

1 stop23h 50m

$873

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 5/4

8:20 am-11:55 pm

2 stops28h 35m

Bangkok Suvarnabhumi

Mon 5/11

9:35 pm-2:14 pm

2 stops27h 39m

$922

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 2/16

6:05 am-12:45 am

2 stops30h 40m

Bangkok Suvarnabhumi

Mon 3/9

9:40 am-11:35 pm

2 stops24h 55m

$930

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 7/27

11:30 am-9:35 am

3 stops35h 05m

Bangkok Suvarnabhumi

Wed 9/2

7:00 am-8:38 pm

2 stops24h 38m

$938

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 4/6

7:30 am-4:35 am

2 stops34h 05m

Bangkok Suvarnabhumi

Tue 4/21

7:00 am-9:31 pm

2 stops25h 31m

$939

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 October instead. Flights to Bangkok in October, while not as cheap as those in September, still average around $1,025.

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 $1,128 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 $1,041 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 17 as of January 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
United Airlines	PriceFrom $216	Free Cancellation	Rating 7.4 9,216 reviews	Search United Airlines flights
Air China	PriceFrom $565	Free Cancellation	Rating 7.2 138 reviews	Search Air China flights
Air Canada	PriceFrom $597	Free Cancellation	Rating 7.1 10,667 reviews	Search Air Canada flights
IndiGo	PriceFrom $639	Free Cancellation	Rating 6.8 528 reviews	Search IndiGo flights
Air India	PriceFrom $714	Free Cancellation	Rating 5.5 2,978 reviews	Search Air India flights
Etihad Airways	PriceFrom $787	Free Cancellation	Rating 7.3 1,375 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,188 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $818	Free Cancellation	Rating 7.4 3,725 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $849	Free Cancellation	Rating 7.3 4,207 reviews	Search Turkish Airlines flights
ANA	PriceFrom $896	Free Cancellation	Rating 8.4 1,078 reviews	Search ANA 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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Find better results for your trip to Thailand

Cheap flights from Washington, D.C. to Bangkok from $393

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 3/17. 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 China flights from Washington, D.C. to Bangkok

Our best Air China deals on Washington, D.C. to Bangkok flight tickets

ANA flights from Washington, D.C. to Bangkok

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

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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?

If you aren’t able to travel during the month of September, then book flights to Bangkok from Washington, D.C. during October instead. Flights to Bangkok in October, while not as cheap as those in September, still average around $1,025.

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

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

Etihad Airways, Air India, and IndiGo are the most popular carriers operating 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

How far is Washington, D.C. to Bangkok by plane?

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

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

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

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

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