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 40% 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.

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

Qatar Airways, Asiana Airlines, and United Airlines 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 23h 27m 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.

$443 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 $1,248 to $867. The lowest price recently found on this route was $847.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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

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

8:40 pm - 9:45 am

BKK

IAD

24h 05m

1 stop

$847Etihad Airways

Fri, May 1 - Sun, May 17

3:10 pm - 6:45 am

IAD

BKK

28h 35m

1 stop

3:05 pm - 9:45 am

BKK

IAD

29h 40m

1 stop

$849Etihad Airways

Mon, May 4 - Thu, Oct 1

3:10 pm - 7:00 pm

IAD

BKK

40h 50m

1 stop

9:15 am - 9:45 am

BKK

IAD

35h 30m

1 stop

$853Etihad Airways

Sat, May 2 - Mon, May 18

3:10 pm - 7:00 pm

IAD

BKK

40h 50m

1 stop

9:15 am - 9:45 am

BKK

IAD

35h 30m

1 stop

$856Etihad Airways

Fri, May 1 - Sun, May 17

3:10 pm - 6:45 am

IAD

BKK

28h 35m

1 stop

8:40 pm - 9:45 am

BKK

IAD

24h 05m

1 stop

$858Etihad Airways

Tue, May 12 - Fri, May 22

5:45 pm - 7:25 am

IAD

BKK

26h 40m

2 stops

12:25 pm - 2:30 pm

BKK

IAD

37h 05m

1 stop

$867Multiple Airlines

Wed, Sep 23 - Mon, Sep 28

9:30 pm - 5:45 pm

BWI

BKK

33h 15m

2 stops

9:00 am - 7:40 pm

BKK

BWI

45h 40m

2 stops

$1,034Multiple Airlines

Tue, May 26 - Tue, Jun 9

9:40 am - 5:05 am

DCA

BKK

32h 25m

2 stops

7:05 am - 9:50 pm

BKK

DCA

25h 45m

2 stops

$1,040Air Canada

Wed, Sep 23 - Wed, Oct 7

11:00 am - 5:05 am

DCA

BKK

31h 05m

2 stops

7:05 am - 9:50 pm

BKK

DCA

25h 45m

2 stops

$1,045Air Canada

Wed, Sep 9 - Wed, Sep 23

12:40 pm - 5:05 am

DCA

BKK

29h 25m

2 stops

8:15 am - 7:57 pm

BKK

DCA

22h 42m

2 stops

$1,101Air China

Wed, Sep 30 - Wed, Oct 28

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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 1

IAD3:10 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

BKK6:45 amBangkok Suvarnabhumi

May 17

BKK8:40 pmBangkok Suvarnabhumi

24h 05m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$847

Etihad Airways

May 4

IAD3:10 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

BKK6:45 amBangkok Suvarnabhumi

Oct 1

BKK3:05 pmBangkok Suvarnabhumi

29h 40m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$849

Etihad Airways

May 2

IAD3:10 pmWashington, D.C. Dulles Intl

40h 50m

1 stop

BKK7:00 pmBangkok Suvarnabhumi

May 18

BKK9:15 amBangkok Suvarnabhumi

35h 30m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$853

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

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

Qatar Airways

May 4

IAD9:00 pmWashington, D.C. Dulles Intl

30h 10m

1 stop

BKK2:10 pmBangkok Suvarnabhumi

May 15

BKK7:00 pmBangkok Suvarnabhumi

34h 20m

1 stop

IAD6:20 pmWashington, D.C. Dulles Intl

$895

Qatar Airways

Apr 28

IAD9:00 pmWashington, D.C. Dulles Intl

30h 15m

1 stop

BKK2:15 pmBangkok Suvarnabhumi

May 14

BKK7:40 pmBangkok Suvarnabhumi

33h 40m

1 stop

IAD6:20 pmWashington, D.C. Dulles Intl

$897

Qatar Airways

Apr 28

IAD9:00 pmWashington, D.C. Dulles Intl

30h 15m

1 stop

BKK2:15 pmBangkok Suvarnabhumi

May 13

BKK1:00 amBangkok Suvarnabhumi

28h 20m

1 stop

IAD6:20 pmWashington, D.C. Dulles Intl

$899

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 5/1

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Sun 5/17

8:40 pm-9:45 am

1 stop24h 05m

$847

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 5/4

3:10 pm-6:45 am

1 stop28h 35m

Bangkok Suvarnabhumi

Thu 10/1

3:05 pm-9:45 am

1 stop29h 40m

$849

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 5/2

3:10 pm-7:00 pm

1 stop40h 50m

Bangkok Suvarnabhumi

Mon 5/18

9:15 am-9:45 am

1 stop35h 30m

$853

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 5/1

3:10 pm-7:00 pm

1 stop40h 50m

Bangkok Suvarnabhumi

Sun 5/17

9:15 am-9:45 am

1 stop35h 30m

$856

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

Fri 5/22

8:40 pm-9:45 am

1 stop24h 05m

$858

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 9/23

5:45 pm-7:25 am

2 stops26h 40m

Bangkok Suvarnabhumi

Mon 9/28

12:25 pm-2:30 pm

1 stop37h 05m

$867

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Tue 5/26

9:30 pm-5:45 pm

2 stops33h 15m

Bangkok Suvarnabhumi

Tue 6/9

9:00 am-7:40 pm

2 stops45h 40m

$1,034

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 9/23

9:40 am-5:05 am

2 stops32h 25m

Bangkok Suvarnabhumi

Wed 10/7

7:05 am-9:50 pm

2 stops25h 45m

$1,040

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

$1,045

Quickest round-trip

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 9/30

12:40 pm-5:05 am

2 stops29h 25m

Bangkok Suvarnabhumi

Wed 10/28

8:15 am-7:57 pm

2 stops22h 42m

$1,101

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 $938.

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 $1,079 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 $598	Free Cancellation	Rating 7.3 148 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 1,433 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,212 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $820	Free Cancellation	Rating 7.4 3,730 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $835	Free Cancellation	Rating 7.4 4,321 reviews	Search Turkish Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.4 1,185 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,948 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 7.9 12,268 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $933	Free Cancellation	Rating 7.4 9,614 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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Thu 5/21

Thu 5/28

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Thailand

Nearby airports

Airlines

Other Thailand destinations

Other flights from Washington, D.C.

Complete your trip

Feeling lucky

Fly into one of these airports located in Bangkok

Bangkok Suvarnabhumi Airport

Bangkok Don Mueang Intl Airport

Cheap flights from Washington, D.C. to Bangkok from $327

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 8/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

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

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Bangkok that are best for you.

See travel insights to Bangkok from

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

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Popular cities in Thailand

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Washington, D.C.

According to popular flight searches on momondo this year

Complete your trip to Bangkok

Explore popular destinations other users love

According to popular flight searches on momondo this year