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 49m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 27h 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?

Qatar Airways, Etihad Airways, and United Airlines are the most popular carriers operating from Washington, D.C. to Bangkok

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 37% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 15 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 15 as of May 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.

$479 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 $1,238 to $875. The lowest price recently found on this route was $882.

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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.

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

3:15 am - 9:45 am

BKK

IAD

41h 30m

1 stop

$882Etihad Airways

Thu, Sep 24 - Tue, Sep 29

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

3:15 am - 9:45 am

BKK

IAD

41h 30m

1 stop

$883Etihad Airways

Wed, Sep 9 - Sun, Sep 20

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

3:15 am - 9:45 am

BKK

IAD

41h 30m

1 stop

$884Etihad Airways

Sun, Sep 6 - Tue, Sep 22

9:35 pm - 5:45 pm

BWI

BKK

33h 10m

2 stops

9:00 am - 7:40 pm

BKK

BWI

45h 40m

2 stops

$1,056Multiple Airlines

Sun, May 31 - Mon, Jun 8

9:30 pm - 6:55 am

BWI

BKK

46h 25m

2 stops

9:00 am - 7:40 pm

BKK

BWI

45h 40m

2 stops

$1,072Multiple Airlines

Mon, May 25 - Mon, Jun 8

12:40 pm - 5:05 am

DCA

BKK

53h 25m

2 stops

7:45 am - 9:50 pm

BKK

DCA

25h 05m

2 stops

$1,090Air Canada

Sun, Sep 27 - Tue, Oct 6

12:40 pm - 5:05 am

DCA

BKK

29h 25m

2 stops

10:25 pm - 8:57 am

BKK

DCA

45h 32m

2 stops

$1,092Air Canada

Mon, Oct 19 - Sun, Oct 25

3:36 pm - 9:45 am

DCA

BKK

55h 09m

2 stops

8:15 pm - 11:02 pm

BKK

DCA

37h 47m

2 stops

$1,119Gulf Air

Tue, Sep 15 - Tue, Sep 22

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

11:00 am - 9:00 am

DMK

IAD

33h 00m

1 stop

$1,177Emirates

Tue, Aug 11 - Tue, Oct 27

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

11:50 pm - 8:40 am

DMK

IAD

43h 50m

1 stop

$1,193Emirates

Wed, Aug 12 - Mon, Aug 24

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

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

Etihad Airways

Aug 11

IAD3:10 pmWashington, D.C. Dulles Intl

33h 40m

1 stop

BKK11:50 amBangkok Suvarnabhumi

Oct 27

BKK8:50 pmBangkok Suvarnabhumi

24h 15m

1 stop

IAD10:05 amWashington, D.C. Dulles Intl

$886

Etihad Airways

Aug 10

IAD3:10 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

BKK6:45 amBangkok Suvarnabhumi

Oct 27

BKK2:40 pmBangkok Suvarnabhumi

30h 25m

1 stop

IAD10:05 amWashington, D.C. Dulles Intl

$890

Etihad Airways

Aug 8

IAD3:10 pmWashington, D.C. Dulles Intl

33h 40m

1 stop

BKK11:50 amBangkok Suvarnabhumi

Aug 28

BKK9:15 amBangkok Suvarnabhumi

35h 30m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$911

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

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

STARLUX Airlines

Oct 30

BWI6:12 pmBaltimore/Washington

31h 23m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Nov 21

BKK5:40 pmBangkok Suvarnabhumi

48h 41m

2 stops

BWI6:21 amBaltimore/Washington

$1,312

STARLUX Airlines

Nov 4

BWI6:12 pmBaltimore/Washington

30h 23m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Nov 14

BKK5:40 pmBangkok Suvarnabhumi

48h 00m

2 stops

BWI5:40 amBaltimore/Washington

$1,314

STARLUX Airlines

May 17

BWI7:48 amBaltimore/Washington

41h 12m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

May 19

BKK5:50 pmBangkok Suvarnabhumi

47h 38m

2 stops

BWI6:28 amBaltimore/Washington

$1,533

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 9/24

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Tue 9/29

3:15 am-9:45 am

1 stop41h 30m

$882

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 9/9

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Sun 9/20

3:15 am-9:45 am

1 stop41h 30m

$883

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 9/6

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Tue 9/22

3:15 am-9:45 am

1 stop41h 30m

$884

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sun 5/31

9:35 pm-5:45 pm

2 stops33h 10m

Bangkok Suvarnabhumi

Mon 6/8

9:00 am-7:40 pm

2 stops45h 40m

$1,056

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 5/25

9:30 pm-6:55 am

2 stops46h 25m

Bangkok Suvarnabhumi

Mon 6/8

9:00 am-7:40 pm

2 stops45h 40m

$1,072

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 9/27

12:40 pm-5:05 am

2 stops53h 25m

Bangkok Suvarnabhumi

Tue 10/6

7:45 am-9:50 pm

2 stops25h 05m

$1,090

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 10/19

12:40 pm-5:05 am

2 stops29h 25m

Bangkok Suvarnabhumi

Sun 10/25

10:25 pm-8:57 am

2 stops45h 32m

$1,092

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 9/15

3:36 pm-9:45 am

2 stops55h 09m

Bangkok Suvarnabhumi

Tue 9/22

8:15 pm-11:02 pm

2 stops37h 47m

$1,119

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Tue 8/11

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Tue 10/27

11:00 am-9:00 am

1 stop33h 00m

$1,177

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Wed 8/12

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Mon 8/24

11:50 pm-8:40 am

1 stop43h 50m

$1,193

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 $501.

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 $1,077 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 40m
Direct flights	None

The fastest flight from Washington, D.C. to Bangkok takes 21h 40m

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 40m.
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 15 as of May 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 7.3 149 reviews	Search Air China flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.0 92 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $786	Free Cancellation	Rating 7.3 1,439 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $816	Free Cancellation	Rating 7.4 3,725 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $833	Free Cancellation	Rating 7.4 4,368 reviews	Search Turkish Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.3 1,210 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.1 2,977 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 7.9 12,370 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $933	Free Cancellation	Rating 7.4 9,729 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 $479

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 8/19. 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

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

Our best STARLUX Airlines 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

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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