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 59m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 27h 59m. 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 and Delta 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 46% 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.

$386 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 $1,338. The lowest price recently found on this route was $863.

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One-way

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Enter your travel dates to find the best prices.

2:35 pm - 11:25 pm

IAD

BKK

20h 50m1 stop

8:55 am - 10:05 am

BKK

IAD

36h 10m1 stop

$863Etihad Airways

Mon, Feb 23 - Mon, Mar 23

2:35 pm - 11:25 pm

IAD

BKK

20h 50m1 stop

7:35 pm - 9:05 am

BKK

IAD

49h 30m2 stops

$865Etihad Airways

Thu, Jan 22 - Mon, Feb 2

2:30 pm - 4:20 am

IAD

BKK

26h 50m1 stop

5:50 am - 12:45 pm

BKK

IAD

41h 55m1 stop

$867Turkish Airlines

Fri, Mar 20 - Fri, Mar 27

10:15 pm - 3:05 pm

IAD

BKK

29h 50m1 stop

5:50 am - 12:45 pm

BKK

IAD

41h 55m1 stop

$868Turkish Airlines

Fri, Mar 13 - Fri, Mar 27

8:20 pm - 6:20 pm

IAD

BKK

35h 00m1 stop

7:40 pm - 8:40 am

BKK

IAD

24h 00m1 stop

$870Qatar Airways

Thu, Apr 16 - Thu, Apr 23

11:05 am - 6:20 pm

IAD

BKK

20h 15m1 stop

1:45 am - 4:05 pm

BKK

IAD

25h 20m1 stop

$873Qatar Airways

Sun, Apr 12 - Wed, Apr 29

6:59 am - 12:45 am

DCA

BKK

29h 46m2 stops

11:15 pm - 1:50 pm

BKK

DCA

26h 35m2 stops

$935Korean Air

Mon, Feb 2 - Wed, Feb 18

1:00 pm - 9:45 am

DCA

BKK

33h 45m3 stops

9:35 am - 9:06 pm

BKK

DCA

46h 31m2 stops

$939United Airlines

Mon, Apr 13 - Mon, Apr 27

9:00 am - 11:55 pm

DCA

BKK

27h 55m2 stops

7:00 am - 10:17 pm

BKK

DCA

26h 17m2 stops

$940United Airlines

Wed, May 6 - Wed, May 13

8:20 am - 12:55 am

BWI

BKK

28h 35m2 stops

11:15 pm - 2:54 pm

BKK

BWI

26h 39m2 stops

$945Korean Air

Tue, Mar 3 - Mon, Mar 9

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

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

Etihad Airways

Feb 23

IAD2:35 pmWashington, D.C. Dulles Intl

20h 50m

1 stop

BKK11:25 pmBangkok Suvarnabhumi

Mar 23

BKK8:55 amBangkok Suvarnabhumi

36h 10m

1 stop

IAD10:05 amWashington, D.C. Dulles Intl

$863

Etihad Airways

Jan 22

IAD2:35 pmWashington, D.C. Dulles Intl

20h 50m

1 stop

BKK11:25 pmBangkok Suvarnabhumi

Feb 4

BKK7:35 pmBangkok Suvarnabhumi

49h 30m

2 stops

IAD9:05 amWashington, D.C. Dulles Intl

$865

Etihad Airways

Jan 21

IAD2:35 pmWashington, D.C. Dulles Intl

20h 50m

1 stop

BKK11:25 pmBangkok Suvarnabhumi

Mar 11

BKK10:00 amBangkok Suvarnabhumi

59h 05m

2 stops

IAD10:05 amWashington, D.C. Dulles Intl

$869

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

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

Japan Airlines

Feb 3

BWI6:00 amBaltimore/Washington

29h 35m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Feb 11

BKK10:05 pmBangkok Suvarnabhumi

33h 34m

2 stops

BWI7:39 pmBaltimore/Washington

$1,010

Japan Airlines

Jan 27

BWI6:00 amBaltimore/Washington

29h 35m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Feb 4

BKK8:05 amBangkok Suvarnabhumi

27h 54m

2 stops

BWI11:59 pmBaltimore/Washington

$1,013

Japan Airlines

Jan 22

BWI6:00 amBaltimore/Washington

29h 35m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Feb 12

BKK8:05 amBangkok Suvarnabhumi

23h 34m

2 stops

BWI7:39 pmBaltimore/Washington

$1,017

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 2/23

2:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Mon 3/23

8:55 am-10:05 am

1 stop36h 10m

$863

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 1/22

2:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Mon 2/2

7:35 pm-9:05 am

2 stops49h 30m

$865

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 3/20

2:30 pm-4:20 am

1 stop26h 50m

Bangkok Suvarnabhumi

Fri 3/27

5:50 am-12:45 pm

1 stop41h 55m

$867

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 3/13

10:15 pm-3:05 pm

1 stop29h 50m

Bangkok Suvarnabhumi

Fri 3/27

5:50 am-12:45 pm

1 stop41h 55m

$868

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 4/16

8:20 pm-6:20 pm

1 stop35h 00m

Bangkok Suvarnabhumi

Thu 4/23

7:40 pm-8:40 am

1 stop24h 00m

$870

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 4/12

11:05 am-6:20 pm

1 stop20h 15m

Bangkok Suvarnabhumi

Wed 4/29

1:45 am-4:05 pm

1 stop25h 20m

$873

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 2/2

6:59 am-12:45 am

2 stops29h 46m

Bangkok Suvarnabhumi

Wed 2/18

11:15 pm-1:50 pm

2 stops26h 35m

$935

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 4/13

1:00 pm-9:45 am

3 stops33h 45m

Bangkok Suvarnabhumi

Mon 4/27

9:35 am-9:06 pm

2 stops46h 31m

$939

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 5/6

9:00 am-11:55 pm

2 stops27h 55m

Bangkok Suvarnabhumi

Wed 5/13

7:00 am-10:17 pm

2 stops26h 17m

$940

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Tue 3/3

8:20 am-12:55 am

2 stops28h 35m

Bangkok Suvarnabhumi

Mon 3/9

11:15 pm-2:54 pm

2 stops26h 39m

$945

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 $1,135 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 $1,048 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 9,139 reviews	Search United Airlines flights
Air China	PriceFrom $565	Free Cancellation	Rating 7.2 136 reviews	Search Air China flights
Air Canada	PriceFrom $605	Free Cancellation	Rating 7.1 10,603 reviews	Search Air Canada flights
Air India	PriceFrom $702	Free Cancellation	Rating 5.5 2,974 reviews	Search Air India flights
Etihad Airways	PriceFrom $787	Free Cancellation	Rating 7.3 1,360 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 3,701 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $867	Free Cancellation	Rating 7.3 4,150 reviews	Search Turkish Airlines flights
ANA	PriceFrom $896	Free Cancellation	Rating 8.4 1,060 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,896 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.

An easier way to manage your Bangkok trip

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Cheap flights from Washington, D.C. to Bangkok from $386

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 1/27. 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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Etihad Airways flights from Washington, D.C. to Bangkok

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

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

Our best Japan Airlines 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?

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 and Delta 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