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

AIR PREMIA, Etihad Airways, and Cathay Pacific are the most popular carriers operating from Washington, D.C. to Bangkok

How long does it take to fly to Bangkok?

Flight times from Washington, D.C. to Bangkok vary, but if you’re flying out of Washington, D.C. and flying into Bangkok Suvarnabhumi Airport (one of the most popular routes), then the duration is 22h 32m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 27h 12m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Bangkok?

Qatar Airways, Etihad Airways and United Airlines are the top three most popular airlines that fly to Bangkok from Washington, D.C. according to our data. Qatar Airways is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 18 different airlines that fly to Bangkok 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 Bangkok?

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

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

The number of operators available for flights from Washington, D.C. to Bangkok is 18 as of March 2026.

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

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 Bangkok.

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

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

$383 Cheap Flights from Washington, D.C. to Bangkok in 2026

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

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One-way

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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

5:50 pm - 9:45 am

BKK

IAD

50h 55m

2 stops

$852Etihad Airways

Thu, Aug 27 - Mon, Sep 14

3:10 pm - 11:50 pm

IAD

BKK

21h 40m

1 stop

8:50 pm - 10:05 am

BKK

IAD

24h 15m

1 stop

$853Etihad Airways

Mon, Aug 31 - Tue, Oct 27

3:10 pm - 11:50 am

IAD

BKK

33h 40m

1 stop

3:05 pm - 9:45 am

BKK

IAD

29h 40m

1 stop

$857Etihad Airways

Thu, Apr 23 - Sun, May 3

1:20 pm - 9:45 am

IAD

BKK

33h 25m

1 stop

10:10 am - 11:45 am

BKK

IAD

37h 35m

1 stop

$864Turkish Airlines

Mon, Aug 10 - Thu, Dec 10

7:31 pm - 10:00 am

DCA

BKK

27h 29m

2 stops

7:10 pm - 8:15 pm

BKK

DCA

36h 05m

2 stops

$948Cathay Pacific

Sun, Aug 30 - Mon, Sep 14

12:31 pm - 10:00 am

DCA

BKK

34h 29m

2 stops

3:00 pm - 12:51 am

BKK

DCA

44h 51m

2 stops

$969Cathay Pacific

Mon, Aug 10 - Sun, Aug 16

9:59 am - 9:45 am

DCA

BKK

36h 46m

2 stops

5:30 pm - 8:00 pm

BKK

DCA

37h 30m

2 stops

$982Multiple Airlines

Wed, Sep 2 - Fri, Sep 11

6:11 pm - 9:45 am

BWI

BKK

28h 34m

2 stops

10:50 am - 11:45 pm

BKK

BWI

23h 55m

2 stops

$998Multiple Airlines

Sun, Sep 6 - Sun, Sep 20

6:05 pm - 11:20 am

BWI

BKK

30h 15m

2 stops

2:40 pm - 6:21 am

BKK

BWI

27h 41m

2 stops

$1,029EVA Air

Mon, Aug 10 - Thu, Dec 10

7:04 am - 10:25 am

BWI

BKK

40h 21m

2 stops

4:45 pm - 6:28 am

BKK

BWI

24h 43m

2 stops

$1,039EVA Air

Sun, May 3 - Thu, May 14

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

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

Etihad Airways

May 5

IAD3:10 pmWashington, D.C. Dulles Intl

28h 05m

1 stop

BKK6:15 amBangkok Suvarnabhumi

May 20

BKK5:50 pmBangkok Suvarnabhumi

50h 55m

2 stops

IAD9:45 amWashington, D.C. Dulles Intl

$852

Etihad Airways

Aug 31

IAD3:10 pmWashington, D.C. Dulles Intl

21h 40m

1 stop

BKK11:50 pmBangkok Suvarnabhumi

Oct 29

BKK8:30 amBangkok Suvarnabhumi

36h 35m

1 stop

IAD10:05 amWashington, D.C. Dulles Intl

$853

Etihad Airways

Apr 23

IAD3:10 pmWashington, D.C. Dulles Intl

33h 40m

1 stop

BKK11:50 amBangkok Suvarnabhumi

May 3

BKK3:05 pmBangkok Suvarnabhumi

29h 40m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$857

EVA Air flights from Washington, D.C. to Bangkok

Our best EVA Air deals on Washington, D.C. to Bangkok flight tickets

EVA Air

Aug 26

IAD1:50 amWashington, D.C. Dulles Intl

22h 20m

1 stop

BKK11:10 amBangkok Suvarnabhumi

Sep 12

BKK8:30 amBangkok Suvarnabhumi

24h 30m

1 stop

IAD10:00 pmWashington, D.C. Dulles Intl

$909

EVA Air

May 3

BWI7:04 amBaltimore/Washington

40h 21m

2 stops

BKK10:25 amBangkok Suvarnabhumi

May 14

BKK4:45 pmBangkok Suvarnabhumi

24h 43m

2 stops

BWI6:28 amBaltimore/Washington

$1,039

EVA Air

May 5

DCA6:59 pmWashington, D.C. Reagan-National

28h 26m

2 stops

BKK10:25 amBangkok Suvarnabhumi

May 19

BKK1:35 amBangkok Suvarnabhumi

29h 31m

2 stops

DCA8:06 pmWashington, D.C. Reagan-National

$1,058

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 8/27

3:10 pm-6:10 pm

1 stop40h 00m

Bangkok Suvarnabhumi

Mon 9/14

5:50 pm-9:45 am

2 stops50h 55m

$852

Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 8/31

3:10 pm-11:50 pm

1 stop21h 40m

Bangkok Suvarnabhumi

Tue 10/27

8:50 pm-10:05 am

1 stop24h 15m

$853

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 4/23

3:10 pm-11:50 am

1 stop33h 40m

Bangkok Suvarnabhumi

Sun 5/3

3:05 pm-9:45 am

1 stop29h 40m

$857

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 8/10

1:20 pm-9:45 am

1 stop33h 25m

Bangkok Suvarnabhumi

Thu 12/10

10:10 am-11:45 am

1 stop37h 35m

$864

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 8/30

7:31 pm-10:00 am

2 stops27h 29m

Bangkok Suvarnabhumi

Mon 9/14

7:10 pm-8:15 pm

2 stops36h 05m

$948

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Mon 8/10

12:31 pm-10:00 am

2 stops34h 29m

Bangkok Suvarnabhumi

Sun 8/16

3:00 pm-12:51 am

2 stops44h 51m

$969

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 9/2

9:59 am-9:45 am

2 stops36h 46m

Bangkok Suvarnabhumi

Fri 9/11

5:30 pm-8:00 pm

2 stops37h 30m

$982

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sun 9/6

6:11 pm-9:45 am

2 stops28h 34m

Bangkok Suvarnabhumi

Sun 9/20

10:50 am-11:45 pm

2 stops23h 55m

$998

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 8/10

6:05 pm-11:20 am

2 stops30h 15m

Bangkok Suvarnabhumi

Thu 12/10

2:40 pm-6:21 am

2 stops27h 41m

$1,029

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sun 5/3

7:04 am-10:25 am

2 stops40h 21m

Bangkok Suvarnabhumi

Thu 5/14

4:45 pm-6:28 am

2 stops24h 43m

$1,039

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 Bangkok

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 Bangkok?

If you aren’t able to travel during the month of April, then book flights to Bangkok from Washington, D.C. during September instead. Flights to Bangkok in September, while not as cheap as those in April, still average around $945.

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

You are more likely to see cheaper flights to Bangkok from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,089 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Washington, D.C. for as low as $956 on momondo.

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

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

Fastest flight time	21h 40m
Direct flights	None

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

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

Search flight deals

How far is Washington, D.C. to Bangkok by plane?
The straight-line distance from Washington, D.C. to Bangkok is 8788.5 mi. In terms of flight time, this usually takes a little over 21h 40m.
When did momondo last update prices for flights from Washington, D.C. to Bangkok?
Prices for flights from Washington, D.C. to Bangkok are updated daily.
How many operators does momondo search for flights from Washington, D.C. to Bangkok?
The number of operators available for flights from Washington, D.C. to Bangkok is 18 as of March 2026.
How old do you have to be to fly from Washington, D.C. to Bangkok?
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 Bangkok.
What documentation or ID do you need to fly to Bangkok?
The travel and health documents you'll need for your trip to Bangkok 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 Bangkok. 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 Bangkok

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

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom $565	Free Cancellation	Rating 7.3 141 reviews	Search Air China flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.2 83 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $787	Free Cancellation	Rating 7.4 1,425 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,202 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $818	Free Cancellation	Rating 7.4 3,744 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $835	Free Cancellation	Rating 7.3 4,249 reviews	Search Turkish Airlines flights
Air Canada	PriceFrom $845	Free Cancellation	Rating 7.1 10,800 reviews	Search Air Canada flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.4 1,120 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,900 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 8.0 12,020 reviews	Search Alaska Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Bangkok. momondo saves you time and could save you money on your trip.

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

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

Once you have performed a search for Washington, D.C. to Bangkok flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

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Cheap flights from Washington, D.C. to Bangkok from $383

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 Bangkok departing on 4/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

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

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

What is the cheapest month to fly to Bangkok?

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

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

What airlines fly to Bangkok?

How long does it take to fly to Bangkok?

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

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

Fastest flight time

Direct flights

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

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

Why use momondo?

An easier way to manage your Bangkok 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

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Find better results for your trip to Thailand

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Airports listed have a maximum distance of 15.4 mi from Bangkok

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