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 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 34m. 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 41% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 16 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?

Qatar Airways, Etihad Airways, and United 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 16 as of April 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.

$455 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 $1,197 to $853. The lowest price recently found on this route was $832.

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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 - 12:10 pm

IAD

BKK

34h 00m

1 stop

9:00 pm - 9:45 am

BKK

IAD

23h 45m

1 stop

$832Etihad Airways

Tue, May 5 - Tue, May 12

3:10 pm - 6:10 pm

IAD

BKK

40h 00m

1 stop

3:15 am - 9:45 am

BKK

IAD

41h 30m

1 stop

$833Etihad Airways

Thu, May 7 - Fri, May 15

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

3:55 pm - 9:45 am

BKK

IAD

28h 50m

1 stop

$842Etihad Airways

Wed, May 6 - Wed, May 13

9:30 am - 11:00 am

DCA

BKK

38h 30m

2 stops

3:30 pm - 8:00 pm

BKK

DCA

39h 30m

2 stops

$1,011Singapore Airlines

Thu, Sep 10 - Thu, Sep 17

7:35 pm - 9:45 am

DCA

BKK

51h 10m

2 stops

8:15 pm - 10:17 pm

BKK

DCA

37h 02m

2 stops

$1,031Gulf Air

Tue, May 5 - Tue, May 12

9:30 am - 11:00 am

DCA

BKK

38h 30m

2 stops

3:30 pm - 8:00 pm

BKK

DCA

39h 30m

2 stops

$1,037Singapore Airlines

Tue, Sep 1 - Mon, Sep 14

3:15 pm - 1:05 pm

DCA

BKK

34h 50m

2 stops

1:00 am - 10:59 pm

BKK

DCA

32h 59m

2 stops

$1,068Qatar Airways

Sun, Apr 26 - Thu, May 7

3:15 pm - 1:25 pm

DCA

BKK

35h 10m

2 stops

2:05 am - 12:34 am

BKK

DCA

33h 29m

2 stops

$1,069Qatar Airways

Mon, May 4 - Sun, May 17

6:07 pm - 11:20 am

BWI

BKK

30h 13m

2 stops

2:40 pm - 6:21 am

BKK

BWI

27h 41m

2 stops

$1,086EVA Air

Mon, Aug 10 - Thu, Dec 10

6:16 pm - 10:50 am

BWI

BKK

29h 34m

2 stops

8:30 am - 5:16 pm

BKK

BWI

43h 46m

2 stops

$1,096EVA Air

Tue, Sep 1 - Mon, Sep 14

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

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

Etihad Airways

May 5

IAD3:10 pmWashington, D.C. Dulles Intl

34h 00m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

May 12

BKK9:00 pmBangkok Suvarnabhumi

23h 45m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$832

Etihad Airways

May 7

IAD3:10 pmWashington, D.C. Dulles Intl

40h 00m

1 stop

BKK6:10 pmBangkok Suvarnabhumi

May 15

BKK3:15 amBangkok Suvarnabhumi

41h 30m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$833

Etihad Airways

Apr 16

IAD2:05 pmWashington, D.C. Dulles Intl

41h 55m

1 stop

BKK7:00 pmBangkok Suvarnabhumi

May 1

BKK9:40 amBangkok Suvarnabhumi

35h 05m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$841

Cathay Pacific flights from Washington, D.C. to Bangkok

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

Cathay Pacific

Apr 21

DCA4:59 pmWashington, D.C. Reagan-National

30h 01m

2 stops

BKK10:00 amBangkok Suvarnabhumi

May 4

BKK7:10 pmBangkok Suvarnabhumi

31h 42m

2 stops

DCA3:52 pmWashington, D.C. Reagan-National

$1,262

Cathay Pacific

Apr 19

DCA9:32 amWashington, D.C. Reagan-National

37h 28m

2 stops

BKK10:00 amBangkok Suvarnabhumi

May 4

BKK4:25 pmBangkok Suvarnabhumi

34h 27m

2 stops

DCA3:52 pmWashington, D.C. Reagan-National

$1,263

Cathay Pacific

Apr 22

DCA4:59 pmWashington, D.C. Reagan-National

30h 01m

2 stops

BKK10:00 amBangkok Suvarnabhumi

May 2

BKK7:10 pmBangkok Suvarnabhumi

55h 42m

2 stops

DCA3:52 pmWashington, D.C. Reagan-National

$1,349

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 5/5

3:10 pm-12:10 pm

1 stop34h 00m

Bangkok Suvarnabhumi

Tue 5/12

9:00 pm-9:45 am

1 stop23h 45m

$832

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 5/7

3:10 pm-6:10 pm

1 stop40h 00m

Bangkok Suvarnabhumi

Fri 5/15

3:15 am-9:45 am

1 stop41h 30m

$833

Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 5/6

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Wed 5/13

3:55 pm-9:45 am

1 stop28h 50m

$842

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 9/10

9:30 am-11:00 am

2 stops38h 30m

Bangkok Suvarnabhumi

Thu 9/17

3:30 pm-8:00 pm

2 stops39h 30m

$1,011

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 5/5

7:35 pm-9:45 am

2 stops51h 10m

Bangkok Suvarnabhumi

Tue 5/12

8:15 pm-10:17 pm

2 stops37h 02m

$1,031

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 9/1

9:30 am-11:00 am

2 stops38h 30m

Bangkok Suvarnabhumi

Mon 9/14

3:30 pm-8:00 pm

2 stops39h 30m

$1,037

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 4/26

3:15 pm-1:05 pm

2 stops34h 50m

Bangkok Suvarnabhumi

Thu 5/7

1:00 am-10:59 pm

2 stops32h 59m

$1,068

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 5/4

3:15 pm-1:25 pm

2 stops35h 10m

Bangkok Suvarnabhumi

Sun 5/17

2:05 am-12:34 am

2 stops33h 29m

$1,069

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 8/10

6:07 pm-11:20 am

2 stops30h 13m

Bangkok Suvarnabhumi

Thu 12/10

2:40 pm-6:21 am

2 stops27h 41m

$1,086

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Tue 9/1

6:16 pm-10:50 am

2 stops29h 34m

Bangkok Suvarnabhumi

Mon 9/14

8:30 am-5:16 pm

2 stops43h 46m

$1,096

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 April instead. Flights to Bangkok in April, while not as cheap as those in September, still average around $932.

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 $1,077 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 $963 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	21h 30m
Direct flights	None

The fastest flight from Washington, D.C. to Bangkok takes 21h 30m

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 21h 30m.
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 16 as of April 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 7.3 146 reviews	Search Air China flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.2 85 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $785	Free Cancellation	Rating 7.3 1,428 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,205 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $823	Free Cancellation	Rating 7.4 3,727 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $835	Free Cancellation	Rating 7.3 4,302 reviews	Search Turkish Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.4 1,170 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,925 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 7.9 12,197 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $933	Free Cancellation	Rating 7.4 9,555 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 $455

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 4/16. 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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Etihad Airways flights from Washington, D.C. to Bangkok

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

Cathay Pacific flights from Washington, D.C. to Bangkok

Our best Cathay Pacific 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 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

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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