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

Turkish Airlines is the most popular carrier operating from Washington, D.C. to Bangkok

What airlines fly to Bangkok?

Qatar Airways, Turkish Airlines and Etihad Airways 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 40% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 20 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

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 57m 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.

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 20 as of September 2025.

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.

$382 Cheap Flights from Washington, D.C. to Bangkok in 2025/26

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 $882 to $1,115. The lowest price recently found on this route was $791.

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

Round-trip

One-way

Last minute

Cheap round-trip flights

5:35 am - 9:25 pmBWI-BKK

27h 50m2 stops

10:55 pm - 7:19 pmBKK-BWI

32h 24m2 stops

$791Multiple Airlines

Find Deal

Mon, Nov 3 - Sun, Nov 16

5:35 am - 9:25 pmBWI-BKK

27h 50m2 stops

10:55 pm - 7:19 pmBKK-BWI

32h 24m2 stops

$798Multiple Airlines

Find Deal

Mon, Nov 3 - Sun, Nov 16

5:35 am - 9:25 pmBWI-BKK

27h 50m2 stops

10:55 pm - 7:19 pmBKK-BWI

32h 24m2 stops

$806Multiple Airlines

Find Deal

Mon, Nov 3 - Thu, Nov 6

9:10 pm - 6:00 pmIAD-BKK

32h 50m1 stop

2:55 am - 3:50 pmBKK-IAD

24h 55m1 stop

$850Etihad Airways

Find Deal

Fri, Jan 16 - Fri, Feb 6

10:05 pm - 6:50 pmIAD-BKK

33h 45m1 stop

7:20 am - 4:10 pmBKK-IAD

43h 50m2 stops

$851Etihad Airways

Find Deal

Wed, Oct 8 - Fri, Oct 17

9:00 pm - 12:55 pmIAD-BKK

28h 55m1 stop

8:30 pm - 4:55 pmBKK-IAD

31h 25m1 stop

$854Qatar Airways

Find Deal

Tue, Oct 7 - Wed, Oct 29

8:05 pm - 12:15 pmIAD-BKK

28h 10m1 stop

8:30 pm - 3:55 pmBKK-IAD

31h 25m1 stop

$856Qatar Airways

Find Deal

Wed, Jan 14 - Wed, Feb 25

1:30 pm - 4:20 amIAD-BKK

26h 50m1 stop

10:10 am - 11:45 amBKK-IAD

37h 35m1 stop

$878Turkish Airlines

Find Deal

Wed, Nov 26 - Mon, Dec 8

6:59 am - 9:30 pmDCA-BKK

26h 31m2 stops

12:55 am - 12:51 pmBKK-DCA

23h 56m2 stops

$934Korean Air

Find Deal

Tue, Nov 25 - Tue, Dec 9

6:59 am - 11:20 pmDCA-BKK

28h 21m2 stops

12:55 am - 12:51 pmBKK-DCA

23h 56m2 stops

$959Korean Air

Find Deal

Mon, Dec 1 - Mon, Dec 15

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

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

Etihad Airways

Jan 16

IAD9:10 pmWashington, D.C. Dulles Intl

32h 50m

1 stop

BKK6:00 pmBangkok Suvarnabhumi

Feb 6

BKK2:55 amBangkok Suvarnabhumi

24h 55m

1 stop

IAD3:50 pmWashington, D.C. Dulles Intl

$850

Find similar

Etihad Airways

Oct 8

IAD10:05 pmWashington, D.C. Dulles Intl

33h 45m

1 stop

BKK6:50 pmBangkok Suvarnabhumi

Oct 17

BKK7:20 amBangkok Suvarnabhumi

43h 50m

2 stops

IAD4:10 pmWashington, D.C. Dulles Intl

$851

Find similar

Etihad Airways

Oct 15

IAD10:05 pmWashington, D.C. Dulles Intl

49h 55m

2 stops

BKK11:00 amBangkok Suvarnabhumi

Oct 25

BKK7:20 amBangkok Suvarnabhumi

44h 30m

2 stops

IAD4:50 pmWashington, D.C. Dulles Intl

$852

Find similar

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

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

Singapore Airlines

Jan 21

BWI6:55 pmBaltimore/Washington

37h 05m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Jan 28

BKK9:10 pmBangkok Suvarnabhumi

32h 45m

2 stops

BWI5:55 pmBaltimore/Washington

$865

Find similar

Singapore Airlines

Jan 14

IAD6:55 pmWashington, D.C. Dulles Intl

37h 05m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Feb 25

BKK8:00 pmBangkok Suvarnabhumi

33h 55m

2 stops

IAD5:55 pmWashington, D.C. Dulles Intl

$889

Find similar

Singapore Airlines

Jan 28

IAD6:55 pmWashington, D.C. Dulles Intl

37h 05m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Feb 4

BKK12:00 pmBangkok Suvarnabhumi

41h 55m

2 stops

IAD5:55 pmWashington, D.C. Dulles Intl

$890

Find similar

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

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 11/3

5:35 am-9:25 pm

2 stops27h 50m

Bangkok Suvarnabhumi

Sun 11/16

10:55 pm-7:19 pm

2 stops32h 24m

$791

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 11/3

5:35 am-9:25 pm

2 stops27h 50m

Bangkok Suvarnabhumi

Sun 11/16

10:55 pm-7:19 pm

2 stops32h 24m

$798

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 11/3

5:35 am-9:25 pm

2 stops27h 50m

Bangkok Suvarnabhumi

Thu 11/6

10:55 pm-7:19 pm

2 stops32h 24m

$806

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 1/16

9:10 pm-6:00 pm

1 stop32h 50m

Bangkok Suvarnabhumi

Fri 2/6

2:55 am-3:50 pm

1 stop24h 55m

$850

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 10/8

10:05 pm-6:50 pm

1 stop33h 45m

Bangkok Suvarnabhumi

Fri 10/17

7:20 am-4:10 pm

2 stops43h 50m

$851

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 10/7

9:00 pm-12:55 pm

1 stop28h 55m

Bangkok Suvarnabhumi

Wed 10/29

8:30 pm-4:55 pm

1 stop31h 25m

$854

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 1/14

8:05 pm-12:15 pm

1 stop28h 10m

Bangkok Suvarnabhumi

Wed 2/25

8:30 pm-3:55 pm

1 stop31h 25m

$856

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 11/26

1:30 pm-4:20 am

1 stop26h 50m

Bangkok Suvarnabhumi

Mon 12/8

10:10 am-11:45 am

1 stop37h 35m

$878

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 11/25

6:59 am-9:30 pm

2 stops26h 31m

Bangkok Suvarnabhumi

Tue 12/9

12:55 am-12:51 pm

2 stops23h 56m

$934

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 12/1

6:59 am-11:20 pm

2 stops28h 21m

Bangkok Suvarnabhumi

Mon 12/15

12:55 am-12:51 pm

2 stops23h 56m

$959

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 August instead. Flights to Bangkok in August, while not as cheap as those in September, still average around $1,064.

What is the cheapest day to depart on your flight to Bangkok?

On average, the least expensive day to fly to Bangkok from Washington, D.C. is on a Saturday. momondo users have found tickets for Saturday departures for as low as $1,210. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Washington, D.C. to Bangkok on a Friday will generally be more expensive and average around $1,354. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Bangkok?

According to our data, the cheapest time of day to fly to Bangkok is in the evening. momondo users have found flights departing from Washington, D.C. to Bangkok in the evening for as low as $1,143. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around $1,365. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $1,211 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 $1,018 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

Direct flights	None

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 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 20 as of September 2025.
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 7.3 101 reviews	Search Air China flights
Air India	PriceFrom $700	Free Cancellation	Rating 5.5 2,930 reviews	Search Air India flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,140 reviews	Search Korean Air flights
SAUDIA	PriceFrom $823	Free Cancellation	Rating 7.4 634 reviews	Search SAUDIA flights
Etihad Airways	PriceFrom $880	Free Cancellation	Rating 7.4 1,250 reviews	Search Etihad Airways flights
ANA	PriceFrom $895	Free Cancellation	Rating 8.4 963 reviews	Search ANA flights
Turkish Airlines	PriceFrom $911	Free Cancellation	Rating 7.3 3,968 reviews	Search Turkish Airlines flights
Delta	PriceFrom $928	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
Qatar Airways	PriceFrom $937	Free Cancellation	Rating 7.4 3,624 reviews	Search Qatar Airways flights
United Airlines	PriceFrom $937	Free Cancellation	Rating 7.4 8,924 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.

An easier way to manage your Bangkok trip

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Cheap flights from Washington, D.C. to Bangkok from $382

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 11/11. 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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Big names and deals

Filter for what you want

Filter for what you want

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Price Alerts

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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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

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

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

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

momondo Fare Finder

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

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

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 August instead. Flights to Bangkok in August, while not as cheap as those in September, still average around $1,064.

What is the cheapest day to depart on your flight to Bangkok?

What is the cheapest time of day to depart on your flight 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?

Turkish Airlines is the most popular carrier 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

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