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

Etihad Airways, Qatar Airways, and United Airlines are the most popular carriers operating from Washington, D.C. to Bangkok

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 16 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.

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 24m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 27h 29m. Keep in mind that layovers or delays could extend your travel time.

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 16 as of April 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.

$437 Cheap Flights from Washington, D.C. to Bangkok in 2026

Q: What is the typical price of a round-trip flight between Washington, D.C. and Bangkok?

Prices are currently low for flights on this route. Typical prices usually range from $1,179 to $856. The lowest price recently found on this route was $848.

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

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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

9:00 pm - 9:45 am

BKK

IAD

23h 45m

1 stop

$848Etihad Airways

Sat, May 2 - Sun, May 10

2:05 pm - 6:10 pm

IAD

BKK

41h 05m

1 stop

9:40 am - 9:45 am

BKK

IAD

35h 05m

1 stop

$851Etihad Airways

Sun, Apr 26 - Sun, May 3

3:10 pm - 6:30 am

IAD

BKK

28h 20m

1 stop

9:40 am - 9:45 am

BKK

IAD

35h 05m

1 stop

$852Etihad Airways

Mon, May 4 - Tue, May 12

4:20 pm - 5:05 am

DCA

BKK

49h 45m

2 stops

8:15 am - 10:21 am

BKK

DCA

38h 06m

2 stops

$989Air Canada

Sun, Sep 13 - Tue, Nov 3

11:00 am - 5:05 am

DCA

BKK

31h 05m

2 stops

7:05 am - 9:50 pm

BKK

DCA

25h 45m

2 stops

$994Air Canada

Wed, Sep 9 - Wed, Sep 23

6:11 pm - 12:10 pm

BWI

BKK

30h 59m

2 stops

10:50 am - 6:21 am

BKK

BWI

30h 31m

2 stops

$1,020Multiple Airlines

Mon, Oct 5 - Mon, Oct 19

8:21 am - 6:50 am

DCA

BKK

35h 29m

2 stops

1:00 am - 11:28 pm

BKK

DCA

33h 28m

2 stops

$1,068Qatar Airways

Thu, Apr 23 - Thu, Apr 30

3:15 pm - 6:50 am

DCA

BKK

28h 35m

2 stops

2:30 am - 11:28 pm

BKK

DCA

31h 58m

2 stops

$1,069Qatar Airways

Wed, May 6 - Tue, May 19

9:30 pm - 5:45 pm

BWI

BKK

57h 15m

2 stops

7:10 pm - 7:40 pm

BKK

BWI

59h 30m

2 stops

$1,070Multiple Airlines

Sat, May 30 - Sat, Jun 6

6:07 pm - 11:20 am

BWI

BKK

30h 13m

2 stops

5:15 pm - 6:21 am

BKK

BWI

25h 06m

2 stops

$1,086EVA Air

Mon, Aug 10 - Thu, Dec 10

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 2

IAD3:10 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

BKK6:45 amBangkok Suvarnabhumi

May 10

BKK9:00 pmBangkok Suvarnabhumi

23h 45m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$848

Etihad Airways

Apr 16

IAD2:05 pmWashington, D.C. Dulles Intl

41h 55m

1 stop

BKK7:00 pmBangkok Suvarnabhumi

May 2

BKK9:00 pmBangkok Suvarnabhumi

23h 45m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$849

Etihad Airways

Apr 26

IAD2:05 pmWashington, D.C. Dulles Intl

41h 05m

1 stop

BKK6:10 pmBangkok Suvarnabhumi

May 3

BKK9:40 amBangkok Suvarnabhumi

35h 05m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$851

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

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

Qatar Airways

Apr 22

IAD9:00 pmWashington, D.C. Dulles Intl

29h 05m

1 stop

BKK1:05 pmBangkok Suvarnabhumi

May 19

BKK1:00 amBangkok Suvarnabhumi

28h 10m

1 stop

IAD6:10 pmWashington, D.C. Dulles Intl

$879

Qatar Airways

Apr 29

IAD9:00 pmWashington, D.C. Dulles Intl

35h 50m

1 stop

BKK7:50 pmBangkok Suvarnabhumi

May 7

BKK2:30 amBangkok Suvarnabhumi

26h 40m

1 stop

IAD6:10 pmWashington, D.C. Dulles Intl

$882

Qatar Airways

Apr 16

IAD9:00 pmWashington, D.C. Dulles Intl

22h 50m

1 stop

BKK6:50 amBangkok Suvarnabhumi

Apr 24

BKK7:00 pmBangkok Suvarnabhumi

34h 10m

1 stop

IAD6:10 pmWashington, D.C. Dulles Intl

$884

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 5/2

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Sun 5/10

9:00 pm-9:45 am

1 stop23h 45m

$848

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 4/26

2:05 pm-6:10 pm

1 stop41h 05m

Bangkok Suvarnabhumi

Sun 5/3

9:40 am-9:45 am

1 stop35h 05m

$851

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 5/4

3:10 pm-6:30 am

1 stop28h 20m

Bangkok Suvarnabhumi

Tue 5/12

9:40 am-9:45 am

1 stop35h 05m

$852

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Sun 9/13

4:20 pm-5:05 am

2 stops49h 45m

Bangkok Suvarnabhumi

Tue 11/3

8:15 am-10:21 am

2 stops38h 06m

$989

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

$994

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 10/5

6:11 pm-12:10 pm

2 stops30h 59m

Bangkok Suvarnabhumi

Mon 10/19

10:50 am-6:21 am

2 stops30h 31m

$1,020

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Thu 4/23

8:21 am-6:50 am

2 stops35h 29m

Bangkok Suvarnabhumi

Thu 4/30

1:00 am-11:28 pm

2 stops33h 28m

$1,068

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 5/6

3:15 pm-6:50 am

2 stops28h 35m

Bangkok Suvarnabhumi

Tue 5/19

2:30 am-11:28 pm

2 stops31h 58m

$1,069

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sat 5/30

9:30 pm-5:45 pm

2 stops57h 15m

Bangkok Suvarnabhumi

Sat 6/6

7:10 pm-7:40 pm

2 stops59h 30m

$1,070

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Mon 8/10

6:07 pm-11:20 am

2 stops30h 13m

Bangkok Suvarnabhumi

Thu 12/10

5:15 pm-6:21 am

2 stops25h 06m

$1,086

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 typical price of a round-trip flight between Washington, D.C. and Bangkok?

What is the cheapest month to fly to Bangkok?

If you aren’t able to travel during the month of September, then book flights to Bangkok from Washington, D.C. during April instead. Flights to Bangkok in April, while not as cheap as those in September, still average around $934.

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 $1,078 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 $963 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

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

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 16 as of April 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 $592	Free Cancellation	Rating 7.3 146 reviews	Search Air China flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.2 85 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $785	Free Cancellation	Rating 7.3 1,429 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,204 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $822	Free Cancellation	Rating 7.4 3,725 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $835	Free Cancellation	Rating 7.3 4,305 reviews	Search Turkish Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.4 1,171 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,929 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 7.9 12,226 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $933	Free Cancellation	Rating 7.4 9,577 reviews	Search United 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 $437

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 5/11. 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

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

Our best Qatar 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 typical price of a round-trip flight between Washington, D.C. and 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

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

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

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Airports listed have a maximum distance of 15.4 mi from Bangkok

Fly your favorite airline to Bangkok

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