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

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

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 37% 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.

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 45m 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 39m.

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 May 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.

$485 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.

4:30 pm - 9:45 am

IAD

BKK

30h 15m

2 stops

12:25 pm - 2:30 pm

BKK

IAD

37h 05m

1 stop

$889Multiple Airlines

Tue, Oct 6 - Wed, Oct 21

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

3:05 pm - 9:45 am

BKK

IAD

29h 40m

1 stop

$903Etihad Airways

Thu, Jul 30 - Mon, Sep 28

9:00 pm - 1:25 pm

IAD

BKK

29h 25m

1 stop

2:30 am - 3:40 pm

BKK

IAD

24h 10m

1 stop

$933Qatar Airways

Mon, Sep 7 - Thu, Sep 17

9:00 pm - 12:10 pm

IAD

HKT

28h 10m

2 stops

8:30 pm - 3:40 pm

HKT

IAD

30h 10m

1 stop

$1,069Qatar Airways

Sun, Sep 6 - Sat, Sep 19

9:40 am - 5:05 am

DCA

BKK

56h 25m

2 stops

8:15 am - 10:21 am

BKK

DCA

38h 06m

2 stops

$1,103Air Canada

Sun, Oct 18 - Mon, Nov 2

11:00 am - 5:05 am

DCA

BKK

31h 05m

2 stops

7:05 am - 9:50 pm

BKK

DCA

25h 45m

2 stops

$1,107Air Canada

Wed, Sep 9 - Wed, Sep 23

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

Tue, Sep 1 - Mon, Sep 7

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

12:10 pm - 8:40 am

DMK

IAD

31h 30m

1 stop

$1,192Emirates

Tue, Aug 4 - Tue, Sep 15

5:12 pm - 10:50 am

DCA

HKT

30h 38m

2 stops

11:50 am - 11:58 pm

HKT

DCA

47h 08m

2 stops

$1,442Cathay Pacific

Tue, Sep 8 - Tue, Sep 15

6:57 pm - 10:50 am

DCA

HKT

28h 53m

2 stops

11:50 am - 11:58 pm

HKT

DCA

47h 08m

2 stops

$1,492Cathay Pacific

Mon, Aug 17 - Fri, Aug 21

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

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

Air Canada

Oct 18

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

56h 25m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Nov 2

BKK8:15 amBangkok Suvarnabhumi

38h 06m

2 stops

DCA10:21 amWashington, D.C. Reagan-National

$1,103

Air Canada

Sep 9

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

31h 05m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 23

BKK7:05 amBangkok Suvarnabhumi

25h 45m

2 stops

DCA9:50 pmWashington, D.C. Reagan-National

$1,107

Air Canada

Sep 9

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

31h 05m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 23

BKK7:05 amBangkok Suvarnabhumi

38h 15m

2 stops

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

$1,108

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

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

Singapore Airlines

Sep 23

BWI7:50 amBaltimore/Washington

49h 10m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Oct 7

BKK9:20 amBangkok Suvarnabhumi

42h 15m

2 stops

BWI4:35 pmBaltimore/Washington

$1,139

Singapore Airlines

Sep 23

BWI6:16 pmBaltimore/Washington

38h 44m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Oct 7

BKK12:15 pmBangkok Suvarnabhumi

39h 20m

2 stops

BWI4:35 pmBaltimore/Washington

$1,140

Singapore Airlines

May 16

BWI7:35 pmBaltimore/Washington

50h 00m

2 stops

HKT8:35 amPhuket City

May 24

HKT11:40 amPhuket City

41h 03m

2 stops

BWI5:43 pmBaltimore/Washington

$2,026

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 10/6

4:30 pm-9:45 am

2 stops30h 15m

Bangkok Suvarnabhumi

Wed 10/21

12:25 pm-2:30 pm

1 stop37h 05m

$889

Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 7/30

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Mon 9/28

3:05 pm-9:45 am

1 stop29h 40m

$903

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 9/7

9:00 pm-1:25 pm

1 stop29h 25m

Bangkok Suvarnabhumi

Thu 9/17

2:30 am-3:40 pm

1 stop24h 10m

$933

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sun 9/6

9:00 pm-12:10 pm

2 stops28h 10m

Phuket City

Sat 9/19

8:30 pm-3:40 pm

1 stop30h 10m

$1,069

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 10/18

9:40 am-5:05 am

2 stops56h 25m

Bangkok Suvarnabhumi

Mon 11/2

8:15 am-10:21 am

2 stops38h 06m

$1,103

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 9/9

11:00 am-5:05 am

2 stops31h 05m

Bangkok Suvarnabhumi

Wed 9/23

7:05 am-9:50 pm

2 stops25h 45m

$1,107

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

Mon 9/7

11:50 pm-8:40 am

1 stop43h 50m

$1,176

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Tue 8/4

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Tue 9/15

12:10 pm-8:40 am

1 stop31h 30m

$1,192

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Tue 9/8

5:12 pm-10:50 am

2 stops30h 38m

Phuket City

Tue 9/15

11:50 am-11:58 pm

2 stops47h 08m

$1,442

Washington, D.C.Phuket City

DCA - HKT

DCAHKT

Washington, D.C. Reagan-National

Mon 8/17

6:57 pm-10:50 am

2 stops28h 53m

Phuket City

Fri 8/21

11:50 am-11:58 pm

2 stops47h 08m

$1,492

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 $1,082 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 30m
Direct flights	None

The fastest flight from Washington, D.C. to Thailand takes 21h 30m

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 May 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 8,462 reviews	Search Delta flights
Korean Air	PriceFrom $673	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
Air China	PriceFrom $732	Free Cancellation	Rating 7.3 149 reviews	Search Air China flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.1 90 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $785	Free Cancellation	Rating 7.3 1,434 reviews	Search Etihad Airways flights
Qatar Airways	PriceFrom $816	Free Cancellation	Rating 7.4 3,727 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $833	Free Cancellation	Rating 7.4 4,355 reviews	Search Turkish Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.3 1,207 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.1 2,980 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 7.9 12,336 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.