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.

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

IndiGo, Delta, and ANA are the most popular carriers operating from Washington, D.C. to Bangkok

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 50m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 26h 25m. 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 18 as of December 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.

$417 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 $1,267 to $2,463. The lowest price recently found on this route was $865.

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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.

1:20 pm - 3:25 pm

IAD

BKK

39h 05m1 stop

6:40 am - 7:45 pm

BKK

IAD

24h 05m1 stop

$865Turkish Airlines

Tue, May 12 - Fri, May 22

2:35 pm - 11:25 pm

IAD

BKK

20h 50m1 stop

8:55 am - 9:05 am

BKK

IAD

36h 10m1 stop

$866Etihad Airways

Tue, Jan 20 - Tue, Feb 3

2:35 pm - 11:25 pm

IAD

BKK

20h 50m1 stop

8:55 am - 9:05 am

BKK

IAD

36h 10m1 stop

$867Etihad Airways

Tue, Jan 20 - Wed, Mar 4

3:35 pm - 6:15 pm

IAD

BKK

39h 40m1 stop

12:25 pm - 9:45 am

BKK

IAD

56h 20m2 stops

$868Etihad Airways

Tue, Apr 7 - Wed, Apr 22

1:30 pm - 4:20 am

IAD

BKK

26h 50m1 stop

5:50 am - 12:45 pm

BKK

IAD

41h 55m1 stop

$871Turkish Airlines

Sat, Feb 28 - Fri, Mar 20

5:00 pm - 12:45 am

DCA

BKK

43h 45m2 stops

9:40 am - 1:53 pm

BKK

DCA

40h 13m2 stops

$900Korean Air

Sun, Jan 18 - Mon, Feb 2

7:35 am - 12:45 am

DCA

BKK

29h 10m2 stops

9:40 am - 10:00 pm

BKK

DCA

24h 20m2 stops

$928Delta

Tue, Jan 20 - Thu, Mar 5

2:00 pm - 5:10 am

DCA

BKK

27h 10m2 stops

9:10 am - 8:59 pm

BKK

DCA

23h 49m2 stops

$933United Airlines

Mon, Jan 19 - Wed, Jan 28

1:00 pm - 4:35 am

DCA

BKK

28h 35m2 stops

7:00 am - 9:04 pm

BKK

DCA

25h 04m2 stops

$936United Airlines

Tue, Apr 7 - Wed, Apr 22

5:00 pm - 12:45 am

DCA

BKK

43h 45m2 stops

2:05 am - 1:44 pm

BKK

DCA

46h 39m2 stops

$939Korean Air

Sun, Feb 8 - Mon, Mar 23

ANA flights from Washington, D.C. to Bangkok

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

ANA

Jan 20

IAD1:05 pmWashington, D.C. Dulles Intl

28h 05m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Jan 27

BKK9:10 amBangkok Suvarnabhumi

36h 00m

1 stop

IAD9:10 amWashington, D.C. Dulles Intl

$927

Find similar

ANA

Jan 27

DCA2:00 pmWashington, D.C. Reagan-National

38h 20m

2 stops

BKK4:20 pmBangkok Suvarnabhumi

Feb 10

BKK2:25 pmBangkok Suvarnabhumi

33h 33m

2 stops

DCA11:58 amWashington, D.C. Reagan-National

$966

Find similar

ANA

Feb 3

DCA2:00 pmWashington, D.C. Reagan-National

27h 10m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Feb 12

BKK7:10 amBangkok Suvarnabhumi

24h 02m

2 stops

DCA7:12 pmWashington, D.C. Reagan-National

$968

Find similar

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

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

China Airlines

Jan 20

DCA9:59 amWashington, D.C. Reagan-National

42h 46m

2 stops

BKK4:45 pmBangkok Suvarnabhumi

Feb 2

BKK2:35 amBangkok Suvarnabhumi

53h 25m

2 stops

DCA8:00 pmWashington, D.C. Reagan-National

$928

Find similar

China Airlines

Jan 13

DCA5:01 pmWashington, D.C. Reagan-National

28h 49m

2 stops

BKK9:50 amBangkok Suvarnabhumi

Jan 22

BKK10:55 amBangkok Suvarnabhumi

45h 05m

2 stops

DCA8:00 pmWashington, D.C. Reagan-National

$937

Find similar

China Airlines

Feb 17

BWI6:46 pmBaltimore/Washington

30h 19m

2 stops

BKK1:05 pmBangkok Suvarnabhumi

Mar 10

BKK5:50 pmBangkok Suvarnabhumi

34h 56m

2 stops

BWI5:46 pmBaltimore/Washington

$945

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 5/12

1:20 pm-3:25 pm

1 stop39h 05m

Bangkok Suvarnabhumi

Fri 5/22

6:40 am-7:45 pm

1 stop24h 05m

$865

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 1/20

2:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Tue 2/3

8:55 am-9:05 am

1 stop36h 10m

$866

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 1/20

2:35 pm-11:25 pm

1 stop20h 50m

Bangkok Suvarnabhumi

Wed 3/4

8:55 am-9:05 am

1 stop36h 10m

$867

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 4/7

3:35 pm-6:15 pm

1 stop39h 40m

Bangkok Suvarnabhumi

Wed 4/22

12:25 pm-9:45 am

2 stops56h 20m

$868

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 2/28

1:30 pm-4:20 am

1 stop26h 50m

Bangkok Suvarnabhumi

Fri 3/20

5:50 am-12:45 pm

1 stop41h 55m

$871

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 1/18

5:00 pm-12:45 am

2 stops43h 45m

Bangkok Suvarnabhumi

Mon 2/2

9:40 am-1:53 pm

2 stops40h 13m

$900

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 1/20

7:35 am-12:45 am

2 stops29h 10m

Bangkok Suvarnabhumi

Thu 3/5

9:40 am-10:00 pm

2 stops24h 20m

$928

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 1/19

2:00 pm-5:10 am

2 stops27h 10m

Bangkok Suvarnabhumi

Wed 1/28

9:10 am-8:59 pm

2 stops23h 49m

$933

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 4/7

1:00 pm-4:35 am

2 stops28h 35m

Bangkok Suvarnabhumi

Wed 4/22

7:00 am-9:04 pm

2 stops25h 04m

$936

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 2/8

5:00 pm-12:45 am

2 stops43h 45m

Bangkok Suvarnabhumi

Mon 3/23

2:05 am-1:44 pm

2 stops46h 39m

$939

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 October instead. Flights to Bangkok in October, while not as cheap as those in September, still average around $1,025.

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 $1,166 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 $1,052 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

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 18 as of December 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
United Airlines	PriceFrom $216	Free Cancellation	Rating 7.4 9,089 reviews	Search United Airlines flights
Air China	PriceFrom $565	Free Cancellation	Rating 7.2 127 reviews	Search Air China flights
Air India	PriceFrom $702	Free Cancellation	Rating 5.5 2,947 reviews	Search Air India flights
Etihad Airways	PriceFrom $797	Free Cancellation	Rating 7.4 1,330 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,183 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $839	Free Cancellation	Rating 7.4 3,676 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $874	Free Cancellation	Rating 7.3 4,084 reviews	Search Turkish Airlines flights
ANA	PriceFrom $895	Free Cancellation	Rating 8.4 1,020 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 8.0 11,419 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

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.

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Find better results for your trip to Thailand

Cheap flights from Washington, D.C. to Bangkok from $380

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 1/13. 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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Trusted and free

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Price Alerts

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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

ANA flights from Washington, D.C. to Bangkok

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

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

Our best China 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 October instead. Flights to Bangkok in October, while not as cheap as those in September, still average around $1,025.

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?

IndiGo, Delta, and ANA are the most popular carriers 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

Fastest flight time

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