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 23h 27m 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 29m.

What airlines fly to Thailand?

Qatar Airways, Etihad Airways and Delta 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 38% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 16 different airlines that fly to Thailand 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 Thailand?

Etihad Airways, Qatar Airways, and Cathay Pacific are the most popular carriers operating 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 16 as of April 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.

$459 Cheap Flights from Washington, D.C. to Thailand in 2026

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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 - 6:45 am

IAD

BKK

28h 35m

1 stop

3:50 pm - 9:45 am

BKK

IAD

28h 55m

1 stop

$865Etihad Airways

Fri, May 8 - Mon, Jun 8

3:10 pm - 6:45 am

IAD

BKK

28h 35m

1 stop

9:00 pm - 9:45 am

BKK

IAD

23h 45m

1 stop

$881Etihad Airways

Tue, May 12 - Sat, May 23

9:00 pm - 7:50 pm

IAD

BKK

35h 50m

1 stop

2:30 am - 6:20 pm

BKK

IAD

26h 50m

1 stop

$898Qatar Airways

Mon, May 11 - Sun, May 24

4:30 pm - 3:00 pm

IAD

BKK

35h 30m

2 stops

12:25 pm - 2:30 pm

BKK

IAD

37h 05m

1 stop

$901Multiple Airlines

Mon, Sep 7 - Wed, Sep 23

9:00 pm - 9:35 am

IAD

HKT

25h 35m

2 stops

8:30 pm - 3:40 pm

HKT

IAD

30h 10m

1 stop

$1,022Qatar Airways

Tue, Sep 1 - Sat, Sep 12

9:30 pm - 6:55 am

BWI

BKK

46h 25m

2 stops

9:00 am - 7:40 pm

BKK

BWI

45h 40m

2 stops

$1,072Multiple Airlines

Mon, May 11 - Sun, May 17

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

11:50 pm - 8:40 am

DMK

IAD

43h 50m

1 stop

$1,176Emirates

Mon, Sep 7 - Tue, Sep 22

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

11:50 pm - 8:40 am

DMK

IAD

43h 50m

1 stop

$1,192Emirates

Wed, Jul 22 - Wed, Jul 29

3:41 pm - 7:45 am

DCA

HKT

29h 04m

2 stops

8:30 pm - 3:59 pm

HKT

DCA

30h 29m

2 stops

$1,223American Airlines

Tue, Sep 1 - Mon, Sep 14

2:59 pm - 7:45 am

DCA

HKT

29h 46m

2 stops

8:30 pm - 7:14 pm

HKT

DCA

33h 44m

2 stops

$1,330American Airlines

Mon, Aug 31 - Sat, Sep 5

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

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

Etihad Airways

May 8

IAD3:10 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

BKK6:45 amBangkok Suvarnabhumi

Jun 8

BKK3:50 pmBangkok Suvarnabhumi

28h 55m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$865

Etihad Airways

May 3

IAD3:10 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

BKK6:45 amBangkok Suvarnabhumi

Jun 3

BKK8:40 pmBangkok Suvarnabhumi

24h 05m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$871

Etihad Airways

May 2

IAD3:10 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

BKK6:45 amBangkok Suvarnabhumi

May 18

BKK9:00 pmBangkok Suvarnabhumi

23h 45m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$873

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

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

Qatar Airways

May 3

IAD9:00 pmWashington, D.C. Dulles Intl

30h 10m

1 stop

BKK2:10 pmBangkok Suvarnabhumi

May 11

BKK7:40 pmBangkok Suvarnabhumi

33h 40m

1 stop

IAD6:20 pmWashington, D.C. Dulles Intl

$890

Qatar Airways

May 5

IAD9:00 pmWashington, D.C. Dulles Intl

30h 10m

1 stop

BKK2:10 pmBangkok Suvarnabhumi

May 20

BKK7:00 pmBangkok Suvarnabhumi

34h 20m

1 stop

IAD6:20 pmWashington, D.C. Dulles Intl

$895

Qatar Airways

May 11

IAD9:00 pmWashington, D.C. Dulles Intl

35h 50m

1 stop

BKK7:50 pmBangkok Suvarnabhumi

May 24

BKK2:30 amBangkok Suvarnabhumi

26h 50m

1 stop

IAD6:20 pmWashington, D.C. Dulles Intl

$898

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 5/8

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Mon 6/8

3:50 pm-9:45 am

1 stop28h 55m

$865

Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 5/12

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Sat 5/23

9:00 pm-9:45 am

1 stop23h 45m

$881

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 5/11

9:00 pm-7:50 pm

1 stop35h 50m

Bangkok Suvarnabhumi

Sun 5/24

2:30 am-6:20 pm

1 stop26h 50m

$898

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 9/7

4:30 pm-3:00 pm

2 stops35h 30m

Bangkok Suvarnabhumi

Wed 9/23

12:25 pm-2:30 pm

1 stop37h 05m

$901

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Tue 9/1

9:00 pm-9:35 am

2 stops25h 35m

Phuket City

Sat 9/12

8:30 pm-3:40 pm

1 stop30h 10m

$1,022

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 5/11

9:30 pm-6:55 am

2 stops46h 25m

Bangkok Suvarnabhumi

Sun 5/17

9:00 am-7:40 pm

2 stops45h 40m

$1,072

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Mon 9/7

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Tue 9/22

11:50 pm-8:40 am

1 stop43h 50m

$1,176

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Wed 7/22

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Wed 7/29

11:50 pm-8:40 am

1 stop43h 50m

$1,192

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Tue 9/1

3:41 pm-7:45 am

2 stops29h 04m

Phuket City

Mon 9/14

8:30 pm-3:59 pm

2 stops30h 29m

$1,223

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Mon 8/31

2:59 pm-7:45 am

2 stops29h 46m

Phuket City

Sat 9/5

8:30 pm-7:14 pm

2 stops33h 44m

$1,330

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 August is, on average, the cheapest month to fly to Thailand from Washington, D.C., with most prices found around $427. If you are unable to visit Thailand during the month of August, then departing from Washington, D.C. during the month September is also very affordable. Most momondo users find prices during this month for around $501.

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 $1,080 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 $963 on momondo.

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

You could potentially save up to 3% 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 40m
Direct flights	None

The fastest flight from Washington, D.C. to Thailand takes 21h 40m

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 16 as of April 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
Delta	PriceFrom $664	Free Cancellation	Rating 7.9 8,466 reviews	Search Delta flights
Korean Air	PriceFrom $673	Free Cancellation	Rating 8.4 1,214 reviews	Search Korean Air flights
Air China	PriceFrom $732	Free Cancellation	Rating 7.3 148 reviews	Search Air China flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.2 87 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $785	Free Cancellation	Rating 7.3 1,435 reviews	Search Etihad Airways flights
Qatar Airways	PriceFrom $818	Free Cancellation	Rating 7.4 3,725 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $834	Free Cancellation	Rating 7.4 4,341 reviews	Search Turkish Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.4 1,197 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.1 2,967 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 7.9 12,307 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.