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 17m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 28h 10m. 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 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.

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.

$390 Cheap Flights from Washington, D.C. to Bangkok in 2026

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

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Enter your travel dates to find the best prices.

3:35 pm - 11:45 am

IAD

BKK

33h 10m

1 stop

5:40 pm - 10:05 am

BKK

IAD

51h 25m

2 stops

$851Etihad Airways

Sun, Mar 8 - Wed, Mar 18

1:20 pm - 9:10 pm

IAD

BKK

44h 50m

1 stop

10:45 pm - 10:50 am

BKK

IAD

23h 05m

1 stop

$853AIR PREMIA

Fri, Jul 10 - Tue, Aug 11

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 10 - Tue, May 19

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

Sun, May 3 - Tue, May 12

6:05 am - 6:15 am

BWI

BKK

37h 10m

2 stops

3:15 am - 12:49 am

BKK

BWI

32h 34m

2 stops

$864Multiple Airlines

Sun, Apr 5 - Mon, Apr 13

7:16 pm - 4:40 pm

BWI

BKK

34h 24m

2 stops

1:10 pm - 5:44 am

BKK

BWI

27h 34m

2 stops

$899STARLUX Airlines

Fri, Apr 24 - Mon, Apr 27

7:04 am - 4:40 pm

BWI

BKK

46h 36m

2 stops

5:50 pm - 5:44 am

BKK

BWI

46h 54m

2 stops

$908STARLUX Airlines

Sun, Apr 26 - Sun, May 3

7:04 pm - 12:00 pm

BWI

BKK

29h 56m

2 stops

1:10 pm - 5:44 am

BKK

BWI

27h 34m

2 stops

$909Multiple Airlines

Mon, Apr 6 - Thu, Apr 30

5:48 pm - 1:20 pm

DCA

BKK

32h 32m

2 stops

7:40 pm - 4:50 pm

BKK

DCA

32h 10m

2 stops

$963Qatar Airways

Thu, Apr 23 - Mon, May 4

9:35 am - 12:15 am

DCA

BKK

27h 40m

2 stops

7:35 am - 11:59 pm

BKK

DCA

27h 24m

2 stops

$982Cathay Pacific

Mon, Mar 23 - Tue, Apr 7

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

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

Turkish Airlines

Mar 16

IAD10:15 pmWashington, D.C. Dulles Intl

29h 50m

1 stop

BKK3:05 pmBangkok Suvarnabhumi

Mar 23

BKK11:15 pmBangkok Suvarnabhumi

24h 30m

1 stop

IAD12:45 pmWashington, D.C. Dulles Intl

$869

Turkish Airlines

Apr 11

IAD9:45 pmWashington, D.C. Dulles Intl

20h 25m

1 stop

BKK5:10 amBangkok Suvarnabhumi

Apr 21

BKK6:40 amBangkok Suvarnabhumi

39h 55m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$878

Turkish Airlines

Mar 14

IAD2:30 pmWashington, D.C. Dulles Intl

26h 50m

1 stop

BKK4:20 amBangkok Suvarnabhumi

Apr 24

BKK6:40 amBangkok Suvarnabhumi

39h 55m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$880

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

32h 05m

1 stop

BKK6:05 pmBangkok Suvarnabhumi

Mar 12

BKK1:30 amBangkok Suvarnabhumi

29h 00m

1 stop

IAD7:30 pmWashington, D.C. Dulles Intl

$874

Air China

Mar 6

IAD10:00 pmWashington, D.C. Dulles Intl

38h 10m

1 stop

BKK12:10 amBangkok Suvarnabhumi

Mar 16

BKK7:30 pmBangkok Suvarnabhumi

35h 00m

1 stop

IAD7:30 pmWashington, D.C. Dulles Intl

$882

Air China

Apr 10

IAD11:00 pmWashington, D.C. Dulles Intl

32h 20m

1 stop

BKK6:20 pmBangkok Suvarnabhumi

Apr 20

BKK7:35 pmBangkok Suvarnabhumi

34h 55m

1 stop

IAD7:30 pmWashington, D.C. Dulles Intl

$884

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

Sun 3/8

3:35 pm-11:45 am

1 stop33h 10m

Bangkok Suvarnabhumi

Wed 3/18

5:40 pm-10:05 am

2 stops51h 25m

$851

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 7/10

1:20 pm-9:10 pm

1 stop44h 50m

Bangkok Suvarnabhumi

Tue 8/11

10:45 pm-10:50 am

1 stop23h 05m

$853

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 5/10

1:20 pm-9:10 pm

1 stop44h 50m

Bangkok Suvarnabhumi

Tue 5/19

10:45 pm-10:50 am

1 stop23h 05m

$856

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 5/3

1:20 pm-9:10 pm

1 stop44h 50m

Bangkok Suvarnabhumi

Tue 5/12

10:45 pm-10:50 am

1 stop23h 05m

$857

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sun 4/5

6:05 am-6:15 am

2 stops37h 10m

Bangkok Suvarnabhumi

Mon 4/13

3:15 am-12:49 am

2 stops32h 34m

$864

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Fri 4/24

7:16 pm-4:40 pm

2 stops34h 24m

Bangkok Suvarnabhumi

Mon 4/27

1:10 pm-5:44 am

2 stops27h 34m

$899

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sun 4/26

7:04 am-4:40 pm

2 stops46h 36m

Bangkok Suvarnabhumi

Sun 5/3

5:50 pm-5:44 am

2 stops46h 54m

$908

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 4/6

7:04 pm-12:00 pm

2 stops29h 56m

Bangkok Suvarnabhumi

Thu 4/30

1:10 pm-5:44 am

2 stops27h 34m

$909

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 4/23

5:48 pm-1:20 pm

2 stops32h 32m

Bangkok Suvarnabhumi

Mon 5/4

7:40 pm-4:50 pm

2 stops32h 10m

$963

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 3/23

9:35 am-12:15 am

2 stops27h 40m

Bangkok Suvarnabhumi

Tue 4/7

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 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 $1,110 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 $1,026 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 10m
Direct flights	None

The fastest flight from Washington, D.C. to Bangkok takes 20h 10m

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 10m.
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 6.8 534 reviews	Search IndiGo flights
Air India	PriceFrom $778	Free Cancellation	Rating 5.5 2,967 reviews	Search Air India flights
Etihad Airways	PriceFrom $787	Free Cancellation	Rating 7.3 1,397 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 3,741 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $843	Free Cancellation	Rating 7.3 4,220 reviews	Search Turkish Airlines flights
ANA	PriceFrom $896	Free Cancellation	Rating 8.4 1,092 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,897 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 8.0 11,888 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 $390

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 3/11. 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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Turkish Airlines flights from Washington, D.C. to Bangkok

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

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

Our best Air China 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 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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