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 18m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 27h 50m. 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 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.

What is the cheapest airline that flies from Washington, D.C. to Bangkok?

Etihad Airways, Qatar Airways, and Air Canada 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 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.

$490 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 $932.

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

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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

3:15 am - 9:45 am

BKK

IAD

41h 30m

1 stop

$932Etihad Airways

Wed, May 13 - Mon, May 25

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

3:15 am - 9:45 am

BKK

IAD

41h 30m

1 stop

$938Etihad Airways

Wed, Jul 29 - Sun, Sep 27

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

3:15 am - 9:45 am

BKK

IAD

41h 30m

1 stop

$940Etihad Airways

Mon, Jul 27 - Mon, Aug 3

9:30 pm - 6:55 am

BWI

BKK

46h 25m

2 stops

7:10 pm - 7:40 pm

BKK

BWI

59h 30m

2 stops

$1,085Multiple Airlines

Mon, Sep 7 - Wed, Sep 30

9:40 am - 5:05 am

DCA

BKK

32h 25m

2 stops

8:15 am - 10:21 am

BKK

DCA

38h 06m

2 stops

$1,103Air Canada

Mon, Aug 10 - Thu, Dec 10

11:00 am - 5:05 am

DCA

BKK

31h 05m

2 stops

7:05 am - 10:20 am

BKK

DCA

38h 15m

2 stops

$1,107Air Canada

Wed, Sep 9 - Wed, Sep 23

9:35 pm - 6:55 am

BWI

BKK

46h 20m

2 stops

7:10 pm - 5:15 pm

BKK

BWI

33h 05m

2 stops

$1,108Multiple Airlines

Sun, Sep 13 - Fri, Sep 18

7:35 pm - 9:45 am

DCA

BKK

51h 10m

2 stops

8:15 pm - 11:02 pm

BKK

DCA

37h 47m

2 stops

$1,122Gulf Air

Thu, Sep 10 - Thu, Sep 17

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

11:50 pm - 8:40 am

DMK

IAD

43h 50m

1 stop

$1,176Emirates

Mon, Aug 31 - Mon, Sep 7

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

12:10 pm - 8:40 am

DMK

IAD

31h 30m

1 stop

$1,192Emirates

Tue, Aug 4 - Tue, Sep 15

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

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

Air Canada

Aug 10

DCA9:40 amWashington, D.C. Reagan-National

32h 25m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Dec 10

BKK8:15 amBangkok Suvarnabhumi

38h 06m

2 stops

DCA10:21 amWashington, D.C. Reagan-National

$1,103

Air Canada

Sep 9

DCA11:00 amWashington, D.C. Reagan-National

31h 05m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 23

BKK7:05 amBangkok Suvarnabhumi

38h 15m

2 stops

DCA10:20 amWashington, D.C. Reagan-National

$1,107

Air Canada

Sep 9

DCA11:00 amWashington, D.C. Reagan-National

31h 05m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 23

BKK7:05 amBangkok Suvarnabhumi

38h 15m

2 stops

DCA10:20 amWashington, D.C. Reagan-National

$1,108

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

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

STARLUX Airlines

Aug 4

BWI6:07 pmBaltimore/Washington

35h 33m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

Sep 15

BKK5:50 pmBangkok Suvarnabhumi

47h 40m

2 stops

BWI6:30 amBaltimore/Washington

$1,338

STARLUX Airlines

May 12

BWI7:35 pmBaltimore/Washington

29h 25m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

May 19

BKK1:10 pmBangkok Suvarnabhumi

28h 18m

2 stops

BWI6:28 amBaltimore/Washington

$1,356

STARLUX Airlines

Aug 7

BWI6:07 pmBaltimore/Washington

35h 33m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

Sep 2

BKK1:10 pmBangkok Suvarnabhumi

28h 20m

2 stops

BWI6:30 amBaltimore/Washington

$1,362

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 5/13

3:10 pm-12:10 pm

1 stop34h 00m

Bangkok Suvarnabhumi

Mon 5/25

3:15 am-9:45 am

1 stop41h 30m

$932

Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 7/29

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Sun 9/27

3:15 am-9:45 am

1 stop41h 30m

$938

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 7/27

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Mon 8/3

3:15 am-9:45 am

1 stop41h 30m

$940

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 9/7

9:30 pm-6:55 am

2 stops46h 25m

Bangkok Suvarnabhumi

Wed 9/30

7:10 pm-7:40 pm

2 stops59h 30m

$1,085

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 8/10

9:40 am-5:05 am

2 stops32h 25m

Bangkok Suvarnabhumi

Thu 12/10

8:15 am-10:21 am

2 stops38h 06m

$1,103

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 9/9

11:00 am-5:05 am

2 stops31h 05m

Bangkok Suvarnabhumi

Wed 9/23

7:05 am-10:20 am

2 stops38h 15m

$1,107

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sun 9/13

9:35 pm-6:55 am

2 stops46h 20m

Bangkok Suvarnabhumi

Fri 9/18

7:10 pm-5:15 pm

2 stops33h 05m

$1,108

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 9/10

7:35 pm-9:45 am

2 stops51h 10m

Bangkok Suvarnabhumi

Thu 9/17

8:15 pm-11:02 pm

2 stops37h 47m

$1,122

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Mon 8/31

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Mon 9/7

11:50 pm-8:40 am

1 stop43h 50m

$1,176

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Tue 8/4

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

$1,192

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	20h 45m
Direct flights	None

The fastest flight from Washington, D.C. to Bangkok takes 20h 45m

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 45m.
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 1,435 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 3,728 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $833	Free Cancellation	Rating 7.4 4,356 reviews	Search Turkish Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.3 1,208 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,974 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 7.9 12,352 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $933	Free Cancellation	Rating 7.4 9,698 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 $490

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 9/8. 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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Air Canada flights from Washington, D.C. to Bangkok

Our best Air Canada 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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