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

Etihad Airways, ANA, and IndiGo are the most popular carriers operating from Washington, D.C. to Thailand

How long is the flight from Washington, D.C. to Thailand?

The flight from Washington, D.C. to Thailand depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Washington, D.C. (a popular airport in Washington, D.C.) to Bangkok Suvarnabhumi Airport (the most popular airport in Thailand), then the flight time is 22h 30m on average. If you fly from Baltimore (another popular airport in Washington, D.C.) to Bangkok Suvarnabhumi Airport, then the average flight time is 26h 42m.

What airlines fly to Thailand?

Qatar Airways, Etihad Airways and Turkish Airlines are the top three most popular airlines that fly to Thailand from Washington, D.C. according to our data. Qatar Airways is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 18 different airlines that fly to Thailand 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 Thailand?

Prices for flights from Washington, D.C. to Thailand are updated daily.

How many operators does momondo search for flights from Washington, D.C. to Thailand?

The number of operators available for flights from Washington, D.C. to Thailand is 18 as of November 2025.

How old do you have to be to fly from Washington, D.C. to Thailand?

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 Thailand.

What documentation or ID do you need to fly to Thailand?

The travel and health documents you'll need for your trip to Thailand 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 Thailand. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$356 Cheap Flights from Washington, D.C. to Thailand in 2025/26

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

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One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 6:00 pmIAD-BKK

39h 25m1 stop

7:35 pm - 9:05 amBKK-IAD

49h 30m2 stops

$862Etihad Airways

Find Deal

Sun, Jan 18 - Wed, Jan 28

2:35 pm - 11:20 pmIAD-BKK

20h 45m1 stop

7:35 pm - 9:05 amBKK-IAD

49h 30m2 stops

$864Etihad Airways

Find Deal

Sat, Jan 17 - Fri, Jan 30

3:35 pm - 11:20 pmIAD-BKK

20h 45m1 stop

8:50 pm - 10:05 amBKK-IAD

24h 15m1 stop

$866Etihad Airways

Find Deal

Wed, Mar 11 - Fri, Mar 20

11:30 am - 9:45 amDCA-BKK

35h 15m3 stops

9:35 am - 8:43 pmBKK-DCA

46h 08m2 stops

$932United Airlines

Find Deal

Tue, Mar 31 - Mon, May 4

8:36 am - 12:45 amDCA-BKK

29h 09m2 stops

12:55 am - 5:00 pmBKK-DCA

27h 05m2 stops

$933Korean Air

Find Deal

Thu, Mar 12 - Wed, Mar 18

12:00 pm - 11:25 amDCA-BKK

36h 25m3 stops

7:00 am - 9:53 pmBKK-DCA

25h 53m2 stops

$935United Airlines

Find Deal

Mon, Mar 23 - Tue, Apr 28

8:05 pm - 12:55 pmIAD-HKT

28h 50m1 stop

7:50 pm - 3:55 pmHKT-IAD

32h 05m2 stops

$948Qatar Airways

Find Deal

Tue, Jan 20 - Thu, Jan 29

10:40 am - 11:00 pmIAD-HKT

24h 20m2 stops

11:55 pm - 3:55 pmHKT-IAD

28h 00m1 stop

$954Qatar Airways

Find Deal

Sun, Jan 25 - Mon, Feb 9

7:51 pm - 10:55 pmIAD-CNX

39h 04m2 stops

12:15 am - 7:19 pmCNX-IAD

30h 04m2 stops

$1,064Korean Air

Find Deal

Sun, Mar 1 - Tue, Mar 10

2:30 pm - 8:05 amIAD-USM

30h 35m2 stops

4:30 pm - 12:45 pmUSM-IAD

31h 15m2 stops

$1,282Turkish Airlines

Find Deal

Sat, Mar 14 - Wed, Mar 18

Qatar Airways flights from Washington, D.C. to Thailand

Our best Qatar Airways deals on Washington, D.C. to Thailand flight tickets

Qatar Airways

Feb 5

IAD8:05 pmWashington, D.C. Dulles Intl

29h 00m

1 stop

BKK1:05 pmBangkok Suvarnabhumi

Feb 15

BKK6:55 pmBangkok Suvarnabhumi

33h 00m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$882

Find similar

Qatar Airways

Feb 15

IAD8:05 pmWashington, D.C. Dulles Intl

22h 35m

1 stop

BKK6:40 amBangkok Suvarnabhumi

Feb 28

BKK8:15 amBangkok Suvarnabhumi

43h 40m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$885

Find similar

Qatar Airways

Jan 25

IAD10:40 amWashington, D.C. Dulles Intl

20h 45m

1 stop

BKK7:25 pmBangkok Suvarnabhumi

Feb 7

BKK8:30 pmBangkok Suvarnabhumi

31h 25m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$889

Find similar

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

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

Singapore Airlines

Jan 20

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

44h 46m

2 stops

BKK6:45 pmBangkok Suvarnabhumi

Feb 3

BKK3:50 pmBangkok Suvarnabhumi

40h 10m

2 stops

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

$908

Find similar

Singapore Airlines

Feb 18

BWI6:46 pmBaltimore/Washington

37h 14m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Mar 1

BKK9:35 amBangkok Suvarnabhumi

32h 59m

2 stops

BWI6:34 amBaltimore/Washington

$986

Find similar

Singapore Airlines

Dec 4

BWI8:40 amBaltimore/Washington

41h 25m

2 stops

HKT2:05 pmPhuket City

Dec 11

HKT8:15 pmPhuket City

45h 25m

2 stops

BWI5:40 amBaltimore/Washington

$1,505

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 1/18

2:35 pm-6:00 pm

1 stop39h 25m

Bangkok Suvarnabhumi

Wed 1/28

7:35 pm-9:05 am

2 stops49h 30m

$862

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 1/17

2:35 pm-11:20 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Fri 1/30

7:35 pm-9:05 am

2 stops49h 30m

$864

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 3/11

3:35 pm-11:20 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Fri 3/20

8:50 pm-10:05 am

1 stop24h 15m

$866

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 3/31

11:30 am-9:45 am

3 stops35h 15m

Bangkok Suvarnabhumi

Mon 5/4

9:35 am-8:43 pm

2 stops46h 08m

$932

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 3/12

8:36 am-12:45 am

2 stops29h 09m

Bangkok Suvarnabhumi

Wed 3/18

12:55 am-5:00 pm

2 stops27h 05m

$933

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 3/23

12:00 pm-11:25 am

3 stops36h 25m

Bangkok Suvarnabhumi

Tue 4/28

7:00 am-9:53 pm

2 stops25h 53m

$935

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 1/20

8:05 pm-12:55 pm

1 stop28h 50m

Phuket City

Thu 1/29

7:50 pm-3:55 pm

2 stops32h 05m

$948

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sun 1/25

10:40 am-11:00 pm

2 stops24h 20m

Phuket City

Mon 2/9

11:55 pm-3:55 pm

1 stop28h 00m

$954

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sun 3/1

7:51 pm-10:55 pm

2 stops39h 04m

Chiang Mai

Tue 3/10

12:15 am-7:19 pm

2 stops30h 04m

$1,064

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 3/14

2:30 pm-8:05 am

2 stops30h 35m

Ko Samui

Wed 3/18

4:30 pm-12:45 pm

2 stops31h 15m

$1,282

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 Thailand

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 cheapest month to fly to Thailand?

The month of September is, on average, the cheapest month to fly to Thailand from Washington, D.C., with most prices found around $964. If you are unable to visit Thailand during the month of September, then departing from Washington, D.C. during the month October is also very affordable. Most momondo users find prices during this month for around $1,028.

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

The cheapest day to depart on your flight to Thailand is on a Saturday when prices can be found for as low as $1,182. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Thailand is Friday, with ticket prices averaging around $1,353.

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

Flying to Thailand from Washington, D.C. in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,113 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Thailand is in the morning when prices are around $1,342.

How far in advance should I book a flight to Thailand?

You are more likely to see cheaper flights to Thailand from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $1,187 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from Washington, D.C. for as low as $1,025 on momondo.

Can stopping save me money on Washington, D.C. to Thailand flights?

You could potentially save up to 14% on your flight if you consider stops on a Washington, D.C. to Thailand flight.

Cheap Washington, D.C. to Thailand flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Thailand

Fastest flight time	20h 15m
Direct flights	None

The fastest flight from Washington, D.C. to Thailand takes 20h 15m

There are no direct flights from Washington, D.C. to Thailand. There are no popular flight routes from Washington, D.C. to Thailand.

Search flight deals

When did momondo last update prices for flights from Washington, D.C. to Thailand?
Prices for flights from Washington, D.C. to Thailand are updated daily.
How many operators does momondo search for flights from Washington, D.C. to Thailand?
The number of operators available for flights from Washington, D.C. to Thailand is 18 as of November 2025.
How old do you have to be to fly from Washington, D.C. to Thailand?
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 Thailand.
What documentation or ID do you need to fly to Thailand?
The travel and health documents you'll need for your trip to Thailand 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 Thailand. 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 Thailand

Compare and see reviews for airlines that fly from Washington, D.C. to Thailand with momondo

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom $565	Free Cancellation	Rating 7.2 126 reviews	Search Air China flights
Air India	PriceFrom $700	Free Cancellation	Rating 5.5 2,947 reviews	Search Air India flights
Korean Air	PriceFrom $743	Free Cancellation	Rating 8.4 1,170 reviews	Search Korean Air flights
Delta	PriceFrom $798	Free Cancellation	Rating 7.9 7,998 reviews	Search Delta flights
Etihad Airways	PriceFrom $828	Free Cancellation	Rating 7.4 1,312 reviews	Search Etihad Airways flights
Qatar Airways	PriceFrom $838	Free Cancellation	Rating 7.4 3,675 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $890	Free Cancellation	Rating 7.3 4,059 reviews	Search Turkish Airlines flights
ANA	PriceFrom $896	Free Cancellation	Rating 8.4 1,010 reviews	Search ANA flights
JetBlue	PriceFrom $902	Free Cancellation	Rating 7.2 2,905 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 8.0 11,354 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Thailand?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Thailand for you.

Can I find flights from Washington, D.C. to Thailand with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Thailand 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 Thailand?

momondo helps you find the best flight between Washington, D.C. and Thailand by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Thailand right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Thailand now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Thailand and let you know when they change.

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Find better results for your trip to Thailand

Popular cities in Thailand

Flights to Bangkokfrom $536

Flights to Phuket Cityfrom $558

Flights to Chiang Maifrom $580

Flights to Ko Samuifrom $776

Flights to Krabifrom $871

Flights to Surat Thanifrom $812

Flights to Chiang Raifrom $957

Flights to Udon Thanifrom $889

Flights to Hat Yaifrom $1,250

Flights to Khon Kaenfrom $947

Flights to Ubon Ratchathanifrom $1,298

Flights to Tratfrom $1,165

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Flights from Baltimore/Washington to Atlanta Hartsfield-Jackson

Cheap flights from Washington, D.C. to Thailand from $356

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 Thailand departing on 1/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

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

Cheap round-trip flights

Cheap one-way flights

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Qatar Airways flights from Washington, D.C. to Thailand

Our best Qatar Airways deals on Washington, D.C. to Thailand flight tickets

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

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

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Thailand that are best for you.

See travel insights to Thailand from

How to get the cheapest flight ticket from Washington, D.C. to Thailand

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 cheapest month to fly to Thailand?

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

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

How far in advance should I book a flight to Thailand?

Can stopping save me money on Washington, D.C. to Thailand flights?

You could potentially save up to 14% on your flight if you consider stops on a Washington, D.C. to Thailand flight.

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

Etihad Airways, ANA, and IndiGo are the most popular carriers operating from Washington, D.C. to Thailand

What airlines fly to Thailand?

How long is the flight from Washington, D.C. to Thailand?

Cheap Washington, D.C. to Thailand flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Thailand

Fastest flight time

Direct flights

When did momondo last update prices for flights from Washington, D.C. to Thailand?

How many operators does momondo search for flights from Washington, D.C. to Thailand?

How old do you have to be to fly from Washington, D.C. to Thailand?

What documentation or ID do you need to fly to Thailand?

Best airlines flying from Washington, D.C. to Thailand

Compare and see reviews for airlines that fly from Washington, D.C. to Thailand with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Thailand?

Can I find flights from Washington, D.C. to Thailand with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to Thailand?

I’m not ready to book a flight from Washington, D.C. to Thailand right now. Can momondo alert me if prices change?

An easier way to manage your Thailand 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

Popular cities in Thailand

Popular flights according to clicks in the last 7 days on momondo