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

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

What airlines fly to Thailand?

Qatar Airways, Etihad Airways and United 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 40% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 14 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.

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 24h 40m on average. If you fly from Baltimore (another popular airport in Washington, D.C.) to Bangkok Suvarnabhumi Airport, then the average flight time is 27h 12m.

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 14 as of July 2026.

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.

$495 Cheap Flights from Washington, D.C. to Thailand in 2026

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:10 pm - 6:10 pm

IAD

BKK

40h 00m

1 stop

10:00 am - 10:05 am

BKK

IAD

59h 05m

2 stops

$954Etihad Airways

Mon, Oct 12 - Wed, Oct 28

3:10 pm - 11:55 pm

IAD

BKK

21h 45m

1 stop

3:55 pm - 9:45 am

BKK

IAD

28h 50m

1 stop

$955Etihad Airways

Sun, Aug 23 - Fri, Sep 25

9:00 pm - 7:35 am

IAD

BKK

23h 35m

1 stop

2:30 am - 3:40 pm

BKK

IAD

24h 10m

1 stop

$966Qatar Airways

Wed, Oct 7 - Tue, Oct 13

9:00 pm - 7:45 am

IAD

HKT

23h 45m

1 stop

8:30 pm - 3:40 pm

HKT

IAD

30h 10m

1 stop

$1,008Qatar Airways

Wed, Sep 16 - Fri, Sep 25

9:39 am - 9:45 pm

DCA

BKK

25h 06m

2 stops

9:50 am - 11:55 pm

BKK

DCA

25h 05m

2 stops

$1,080Delta

Tue, Sep 1 - Thu, Sep 10

9:32 am - 11:35 pm

DCA

BKK

27h 03m

2 stops

9:30 pm - 11:53 am

BKK

DCA

26h 23m

2 stops

$1,081Delta

Wed, Oct 7 - Wed, Dec 2

8:50 am - 11:35 pm

DCA

BKK

27h 45m

2 stops

9:30 pm - 2:13 pm

BKK

DCA

27h 43m

2 stops

$1,086Korean Air

Mon, Oct 19 - Sun, Oct 25

8:00 am - 10:55 pm

IAD

CNX

27h 55m

2 stops

12:15 am - 9:50 am

CNX

IAD

21h 35m

1 stop

$1,125Korean Air

Sat, Oct 24 - Sun, Nov 1

10:55 am - 11:10 am

IAD

DMK

37h 15m

1 stop

11:00 am - 8:10 am

DMK

IAD

33h 10m

1 stop

$1,169Emirates

Wed, Oct 7 - Thu, Nov 5

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

11:50 pm - 8:40 am

DMK

IAD

43h 50m

1 stop

$1,170Emirates

Tue, Sep 1 - Wed, Sep 30

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

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

Air Canada

Sep 9

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

32h 25m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 23

BKK7:05 amBangkok Suvarnabhumi

38h 15m

2 stops

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

$1,069

Air Canada

Sep 9

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

32h 25m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 23

BKK7:05 amBangkok Suvarnabhumi

38h 15m

2 stops

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

$1,070

Air Canada

Aug 5

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

31h 05m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Oct 7

BKK7:05 amBangkok Suvarnabhumi

38h 15m

2 stops

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

$1,074

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

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

STARLUX Airlines

Jul 20

IAD6:14 pmWashington, D.C. Dulles Intl

30h 46m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Aug 24

BKK1:10 pmBangkok Suvarnabhumi

27h 30m

2 stops

IAD5:40 amWashington, D.C. Dulles Intl

$1,164

STARLUX Airlines

Nov 4

BWI6:12 pmBaltimore/Washington

30h 23m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Dec 2

BKK1:45 pmBangkok Suvarnabhumi

28h 36m

2 stops

BWI6:21 amBaltimore/Washington

$1,177

STARLUX Airlines

Sep 7

BWI7:15 pmBaltimore/Washington

29h 45m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Sep 11

BKK5:50 pmBangkok Suvarnabhumi

47h 40m

2 stops

BWI6:30 amBaltimore/Washington

$1,189

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 10/12

3:10 pm-6:10 pm

1 stop40h 00m

Bangkok Suvarnabhumi

Wed 10/28

10:00 am-10:05 am

2 stops59h 05m

$954

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 8/23

3:10 pm-11:55 pm

1 stop21h 45m

Bangkok Suvarnabhumi

Fri 9/25

3:55 pm-9:45 am

1 stop28h 50m

$955

Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 10/7

9:00 pm-7:35 am

1 stop23h 35m

Bangkok Suvarnabhumi

Tue 10/13

2:30 am-3:40 pm

1 stop24h 10m

$966

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Wed 9/16

9:00 pm-7:45 am

1 stop23h 45m

Phuket City

Fri 9/25

8:30 pm-3:40 pm

1 stop30h 10m

$1,008

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 9/1

9:39 am-9:45 pm

2 stops25h 06m

Bangkok Suvarnabhumi

Thu 9/10

9:50 am-11:55 pm

2 stops25h 05m

$1,080

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 10/7

9:32 am-11:35 pm

2 stops27h 03m

Bangkok Suvarnabhumi

Wed 12/2

9:30 pm-11:53 am

2 stops26h 23m

$1,081

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 10/19

8:50 am-11:35 pm

2 stops27h 45m

Bangkok Suvarnabhumi

Sun 10/25

9:30 pm-2:13 pm

2 stops27h 43m

$1,086

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Sat 10/24

8:00 am-10:55 pm

2 stops27h 55m

Chiang Mai

Sun 11/1

12:15 am-9:50 am

1 stop21h 35m

$1,125

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Wed 10/7

10:55 am-11:10 am

1 stop37h 15m

Bangkok Don Mueang Intl

Thu 11/5

11:00 am-8:10 am

1 stop33h 10m

$1,169

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Tue 9/1

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Wed 9/30

11:50 pm-8:40 am

1 stop43h 50m

$1,170

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 $646. 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 $658.

How far in advance should I book a flight from Washington, D.C. 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 $1,085 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 $950 on momondo.

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

You could potentially save up to 7% 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	21h 15m
Direct flights	None

The fastest flight from Washington, D.C. to Thailand takes 21h 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

Frequently asked questions about flying from Washington, D.C. to Thailand

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 14 as of July 2026.
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 $732	Free Cancellation	Rating 7.3 158 reviews	Search Air China flights
Korean Air	PriceFrom $741	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.2 99 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $786	Free Cancellation	Rating 7.3 1,476 reviews	Search Etihad Airways flights
Delta	PriceFrom $798	Free Cancellation	Rating 7.8 8,450 reviews	Search Delta flights
Qatar Airways	PriceFrom $816	Free Cancellation	Rating 7.3 3,743 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $833	Free Cancellation	Rating 7.4 4,437 reviews	Search Turkish Airlines flights
Alaska Airlines	PriceFrom $878	Free Cancellation	Rating 7.9 12,631 reviews	Search Alaska Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.3 1,266 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.1 3,009 reviews	Search JetBlue 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.