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

IndiGo is the most popular carrier 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 57m 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 50m.

What airlines fly to Thailand?

Qatar Airways, Turkish Airlines and Etihad Airways 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 40% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 20 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 20 as of September 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.

$382 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

Round-trip

One-way

Last minute

Cheap round-trip flights

5:35 am - 9:25 pmBWI-BKK

28h 50m2 stops

10:55 pm - 7:19 pmBKK-BWI

32h 24m2 stops

$791Multiple Airlines

Find Deal

Fri, Oct 31 - Tue, Nov 11

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

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

10:40 am - 7:25 pmIAD-BKK

20h 45m1 stop

6:55 pm - 3:55 pmBKK-IAD

33h 00m1 stop

$856Qatar Airways

Find Deal

Wed, Jan 14 - Wed, Feb 25

8:05 pm - 6:15 amIAD-BKK

22h 10m1 stop

8:30 pm - 3:55 pmBKK-IAD

31h 25m1 stop

$858Qatar Airways

Find Deal

Mon, Feb 9 - Fri, Feb 20

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 22

9:10 pm - 8:40 amIAD-BKK

23h 30m1 stop

5:50 am - 7:15 pmBKK-IAD

25h 25m1 stop

$887Turkish Airlines

Find Deal

Mon, Dec 1 - Tue, Dec 16

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 Thailand

Our best Etihad Airways deals on Washington, D.C. to Thailand 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

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

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

Qatar Airways

Jan 14

IAD10:40 amWashington, D.C. Dulles Intl

20h 45m

1 stop

BKK7:25 pmBangkok Suvarnabhumi

Feb 25

BKK6:55 pmBangkok Suvarnabhumi

33h 00m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$856

Find similar

Qatar Airways

Sep 22

IAD9:00 pmWashington, D.C. Dulles Intl

22h 15m

1 stop

BKK6:15 amBangkok Suvarnabhumi

Sep 27

BKK2:30 amBangkok Suvarnabhumi

24h 10m

1 stop

IAD3:40 pmWashington, D.C. Dulles Intl

$858

Find similar

Qatar Airways

Oct 6

IAD9:00 pmWashington, D.C. Dulles Intl

29h 25m

1 stop

BKK1:25 pmBangkok Suvarnabhumi

Nov 9

BKK2:00 amBangkok Suvarnabhumi

25h 55m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$861

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

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Fri 10/31

5:35 am-9:25 pm

2 stops28h 50m

Bangkok Suvarnabhumi

Tue 11/11

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

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

Wed 1/14

10:40 am-7:25 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Wed 2/25

6:55 pm-3:55 pm

1 stop33h 00m

$856

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 2/9

8:05 pm-6:15 am

1 stop22h 10m

Bangkok Suvarnabhumi

Fri 2/20

8:30 pm-3:55 pm

1 stop31h 25m

$858

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 12/22

10:10 am-11:45 am

1 stop37h 35m

$878

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 12/1

9:10 pm-8:40 am

1 stop23h 30m

Bangkok Suvarnabhumi

Tue 12/16

5:50 am-7:15 pm

1 stop25h 25m

$887

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 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 $989. If you are unable to visit Thailand during the month of September, then departing from Washington, D.C. during the month August is also very affordable. Most momondo users find prices during this month for around $1,064.

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 $1,211 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 $1,018 on momondo.

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

You could potentially save up to 13% 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

Direct flights	None

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 20 as of September 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 7.3 101 reviews	Search Air China flights
Air India	PriceFrom $700	Free Cancellation	Rating 5.5 2,932 reviews	Search Air India flights
Korean Air	PriceFrom $743	Free Cancellation	Rating 8.4 1,140 reviews	Search Korean Air flights
Delta	PriceFrom $798	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
SAUDIA	PriceFrom $823	Free Cancellation	Rating 7.4 634 reviews	Search SAUDIA flights
Etihad Airways	PriceFrom $880	Free Cancellation	Rating 7.4 1,251 reviews	Search Etihad Airways flights
ANA	PriceFrom $895	Free Cancellation	Rating 8.4 964 reviews	Search ANA flights
Turkish Airlines	PriceFrom $911	Free Cancellation	Rating 7.3 3,965 reviews	Search Turkish Airlines flights
Qatar Airways	PriceFrom $937	Free Cancellation	Rating 7.4 3,622 reviews	Search Qatar Airways flights
United Airlines	PriceFrom $937	Free Cancellation	Rating 7.4 8,926 reviews	Search United 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.