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 10m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 24h 46m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Bangkok?

Qatar Airways, Etihad Airways and United 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 40% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 14 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?

Delta, Air Canada, and Japan Airlines 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 14 as of July 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.

$478 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 $1,082 to $1,505. The lowest price recently found on this route was $924.

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:10 pm - 11:55 pm

IAD

BKK

21h 45m

1 stop

9:00 pm - 9:45 am

BKK

IAD

23h 45m

1 stop

$924Etihad Airways

Sat, Sep 5 - Fri, Sep 11

9:45 pm - 9:40 am

IAD

BKK

24h 55m

1 stop

6:40 am - 7:50 pm

BKK

IAD

24h 10m

1 stop

$925Turkish Airlines

Mon, Aug 24 - Mon, Sep 7

3:10 pm - 11:55 pm

IAD

BKK

21h 45m

1 stop

9:00 pm - 9:45 am

BKK

IAD

23h 45m

1 stop

$926Etihad Airways

Mon, Sep 7 - Sun, Sep 27

9:45 pm - 5:10 am

IAD

BKK

20h 25m

1 stop

10:45 pm - 11:35 am

BKK

IAD

23h 50m

1 stop

$927Turkish Airlines

Fri, Oct 2 - Tue, Oct 13

8:05 pm - 12:15 pm

IAD

BKK

28h 10m

1 stop

3:00 am - 3:55 pm

BKK

IAD

24h 55m

1 stop

$930Qatar Airways

Tue, Nov 3 - Wed, Nov 11

9:00 pm - 1:25 pm

IAD

BKK

29h 25m

1 stop

3:00 am - 3:55 pm

BKK

IAD

24h 55m

1 stop

$931Qatar Airways

Wed, Oct 14 - Sun, Nov 8

8:40 pm - 5:05 am

DCA

BKK

69h 25m

2 stops

7:45 am - 9:48 pm

BKK

DCA

25h 03m

2 stops

$960Air Canada

Mon, Aug 17 - Mon, Aug 31

12:40 pm - 5:05 am

DCA

BKK

53h 25m

2 stops

7:45 am - 9:48 pm

BKK

DCA

25h 03m

2 stops

$962Air Canada

Sun, Aug 16 - Mon, Aug 31

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

12:10 pm - 8:40 am

DMK

IAD

31h 30m

1 stop

$1,168Emirates

Tue, Aug 25 - Tue, Sep 15

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

11:50 pm - 8:40 am

DMK

IAD

43h 50m

1 stop

$1,169Emirates

Tue, Sep 1 - Wed, Sep 30

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Delta flights from Washington, D.C. to Bangkok

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

Delta

Sep 14

DCA6:59 amWashington, D.C. Reagan-National

27h 46m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Oct 4

BKK9:40 pmBangkok Suvarnabhumi

31h 59m

2 stops

DCA6:39 pmWashington, D.C. Reagan-National

$1,080

Delta

Sep 10

DCA6:10 amWashington, D.C. Reagan-National

28h 35m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Sep 21

BKK9:50 amBangkok Suvarnabhumi

25h 05m

2 stops

DCA11:55 pmWashington, D.C. Reagan-National

$1,081

Delta

Sep 3

DCA9:39 amWashington, D.C. Reagan-National

28h 26m

2 stops

BKK1:05 amBangkok Suvarnabhumi

Sep 12

BKK9:50 amBangkok Suvarnabhumi

24h 53m

2 stops

DCA11:43 pmWashington, D.C. Reagan-National

$1,130

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

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

Etihad Airways

Sep 5

IAD3:10 pmWashington, D.C. Dulles Intl

21h 45m

1 stop

BKK11:55 pmBangkok Suvarnabhumi

Sep 11

BKK9:00 pmBangkok Suvarnabhumi

23h 45m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$924

Etihad Airways

Sep 7

IAD3:10 pmWashington, D.C. Dulles Intl

21h 45m

1 stop

BKK11:55 pmBangkok Suvarnabhumi

Sep 27

BKK9:00 pmBangkok Suvarnabhumi

23h 45m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$926

Etihad Airways

Sep 2

IAD3:10 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

BKK6:45 amBangkok Suvarnabhumi

Sep 13

BKK9:00 pmBangkok Suvarnabhumi

23h 45m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$928

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 9/5

3:10 pm-11:55 pm

1 stop21h 45m

Bangkok Suvarnabhumi

Fri 9/11

9:00 pm-9:45 am

1 stop23h 45m

$924

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 8/24

9:45 pm-9:40 am

1 stop24h 55m

Bangkok Suvarnabhumi

Mon 9/7

6:40 am-7:50 pm

1 stop24h 10m

$925

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 9/7

3:10 pm-11:55 pm

1 stop21h 45m

Bangkok Suvarnabhumi

Sun 9/27

9:00 pm-9:45 am

1 stop23h 45m

$926

Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 10/2

9:45 pm-5:10 am

1 stop20h 25m

Bangkok Suvarnabhumi

Tue 10/13

10:45 pm-11:35 am

1 stop23h 50m

$927

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 11/3

8:05 pm-12:15 pm

1 stop28h 10m

Bangkok Suvarnabhumi

Wed 11/11

3:00 am-3:55 pm

1 stop24h 55m

$930

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 10/14

9:00 pm-1:25 pm

1 stop29h 25m

Bangkok Suvarnabhumi

Sun 11/8

3:00 am-3:55 pm

1 stop24h 55m

$931

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 8/17

8:40 pm-5:05 am

2 stops69h 25m

Bangkok Suvarnabhumi

Mon 8/31

7:45 am-9:48 pm

2 stops25h 03m

$960

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 8/16

12:40 pm-5:05 am

2 stops53h 25m

Bangkok Suvarnabhumi

Mon 8/31

7:45 am-9:48 pm

2 stops25h 03m

$962

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Tue 8/25

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Tue 9/15

12:10 pm-8:40 am

1 stop31h 30m

$1,168

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Tue 9/1

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Wed 9/30

11:50 pm-8:40 am

1 stop43h 50m

$1,169

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 August, then book flights to Bangkok from Washington, D.C. during September instead. Flights to Bangkok in September, while not as cheap as those in August, still average around $665.

How far in advance should I book a flight from Washington, D.C. 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 $1,086 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 $950 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

Frequently asked questions about flying from Washington, D.C. to Bangkok

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 14 as of July 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 $732	Free Cancellation	Rating 7.4 156 reviews	Search Air China flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.2 100 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $786	Free Cancellation	Rating 7.3 1,479 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $816	Free Cancellation	Rating 7.3 3,745 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $833	Free Cancellation	Rating 7.4 4,449 reviews	Search Turkish Airlines flights
Alaska Airlines	PriceFrom $878	Free Cancellation	Rating 7.9 12,670 reviews	Search Alaska Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.3 1,272 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.1 3,012 reviews	Search JetBlue flights
United Airlines	PriceFrom $932	Free Cancellation	Rating 7.4 10,007 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.

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Cheap flights from Washington, D.C. to Bangkok from $478

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 8/29. 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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Delta flights from Washington, D.C. to Bangkok

Our best Delta 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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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 from Washington, D.C. 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

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. 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?

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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