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 17m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 27h 10m. Keep in mind that layovers or delays could extend your travel time.

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

Qatar Airways, TAP AIR PORTUGAL, and Gulf Air 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 36% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 15 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 15 as of June 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.

$513 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 $1,575 to $1,170. The lowest price recently found on this route was $984.

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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.

2:35 pm - 11:20 pm

IAD

BKK

20h 45m

1 stop

8:50 pm - 9:05 am

BKK

IAD

24h 15m

1 stop

$984Etihad Airways

Sat, Nov 21 - Mon, Nov 30

6:12 pm - 8:00 pm

BWI

BKK

37h 48m

2 stops

3:50 pm - 5:40 am

BKK

BWI

49h 50m

2 stops

$984Multiple Airlines

Tue, Nov 3 - Mon, Nov 16

3:10 pm - 6:10 pm

IAD

BKK

40h 00m

1 stop

3:15 am - 9:45 am

BKK

IAD

41h 30m

1 stop

$986Etihad Airways

Fri, Sep 4 - Sat, Sep 12

9:00 pm - 6:20 am

IAD

BKK

22h 20m

1 stop

2:30 am - 3:40 pm

BKK

IAD

24h 10m

1 stop

$992Qatar Airways

Fri, Aug 28 - Sun, Sep 6

4:30 pm - 7:25 am

IAD

BKK

27h 55m

1 stop

12:15 pm - 2:40 pm

BKK

IAD

38h 25m

1 stop

$993ITA Airways

Sat, Aug 29 - Wed, Dec 16

6:12 pm - 8:00 pm

BWI

BKK

37h 48m

2 stops

9:10 pm - 5:40 am

BKK

BWI

44h 30m

2 stops

$995Singapore Airlines

Tue, Nov 3 - Mon, Nov 16

9:00 pm - 1:25 pm

IAD

BKK

29h 25m

1 stop

2:00 am - 3:55 pm

BKK

IAD

25h 55m

1 stop

$996Qatar Airways

Mon, Aug 10 - Wed, Dec 9

5:00 pm - 8:00 pm

DCA

BKK

39h 00m

2 stops

3:50 pm - 8:00 pm

BKK

DCA

40h 10m

2 stops

$1,022Singapore Airlines

Tue, Nov 17 - Thu, Feb 4

10:55 am - 11:10 am

IAD

DMK

37h 15m

1 stop

11:50 pm - 8:40 am

DMK

IAD

43h 50m

1 stop

$1,170Emirates

Wed, Sep 23 - Mon, Sep 28

10:55 am - 11:25 am

IAD

DMK

37h 30m

1 stop

11:50 pm - 8:40 am

DMK

IAD

43h 50m

1 stop

$1,172Emirates

Tue, Sep 8 - Fri, Oct 16

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

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

Air Canada

Sep 23

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

32h 25m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 28

BKK7:05 amBangkok Suvarnabhumi

38h 15m

2 stops

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

$1,070

Air Canada

Sep 1

DCA4:20 pmWashington, D.C. Reagan-National

49h 45m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Sep 30

BKK7:05 amBangkok Suvarnabhumi

25h 45m

2 stops

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

$1,071

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

$1,075

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

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

Etihad Airways

Nov 21

IAD2:35 pmWashington, D.C. Dulles Intl

20h 45m

1 stop

BKK11:20 pmBangkok Suvarnabhumi

Nov 30

BKK8:50 pmBangkok Suvarnabhumi

24h 15m

1 stop

IAD9:05 amWashington, D.C. Dulles Intl

$984

Etihad Airways

Sep 4

IAD3:10 pmWashington, D.C. Dulles Intl

40h 00m

1 stop

BKK6:10 pmBangkok Suvarnabhumi

Sep 12

BKK3:15 amBangkok Suvarnabhumi

41h 30m

1 stop

IAD9:45 amWashington, D.C. Dulles Intl

$986

Etihad Airways

Nov 20

IAD2:35 pmWashington, D.C. Dulles Intl

39h 25m

1 stop

BKK6:00 pmBangkok Suvarnabhumi

Dec 3

BKK8:50 pmBangkok Suvarnabhumi

24h 15m

1 stop

IAD9:05 amWashington, D.C. Dulles Intl

$987

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 11/21

2:35 pm-11:20 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Mon 11/30

8:50 pm-9:05 am

1 stop24h 15m

$984

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Tue 11/3

6:12 pm-8:00 pm

2 stops37h 48m

Bangkok Suvarnabhumi

Mon 11/16

3:50 pm-5:40 am

2 stops49h 50m

$984

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 9/4

3:10 pm-6:10 pm

1 stop40h 00m

Bangkok Suvarnabhumi

Sat 9/12

3:15 am-9:45 am

1 stop41h 30m

$986

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Fri 8/28

9:00 pm-6:20 am

1 stop22h 20m

Bangkok Suvarnabhumi

Sun 9/6

2:30 am-3:40 pm

1 stop24h 10m

$992

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sat 8/29

4:30 pm-7:25 am

1 stop27h 55m

Bangkok Suvarnabhumi

Wed 12/16

12:15 pm-2:40 pm

1 stop38h 25m

$993

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Tue 11/3

6:12 pm-8:00 pm

2 stops37h 48m

Bangkok Suvarnabhumi

Mon 11/16

9:10 pm-5:40 am

2 stops44h 30m

$995

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 8/10

9:00 pm-1:25 pm

1 stop29h 25m

Bangkok Suvarnabhumi

Wed 12/9

2:00 am-3:55 pm

1 stop25h 55m

$996

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Tue 11/17

5:00 pm-8:00 pm

2 stops39h 00m

Bangkok Suvarnabhumi

Thu 2/4

3:50 pm-8:00 pm

2 stops40h 10m

$1,022

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Wed 9/23

10:55 am-11:10 am

1 stop37h 15m

Bangkok Don Mueang Intl

Mon 9/28

11:50 pm-8:40 am

1 stop43h 50m

$1,170

Washington, D.C.Bangkok

IAD - DMK

IADDMK

Washington, D.C. Dulles Intl

Tue 9/8

10:55 am-11:25 am

1 stop37h 30m

Bangkok Don Mueang Intl

Fri 10/16

11:50 pm-8:40 am

1 stop43h 50m

$1,172

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 August, then book flights to Bangkok from Washington, D.C. during September instead. Flights to Bangkok in September, while not as cheap as those in August, still average around $501.

How far in advance should I book a flight from Washington, D.C. 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 $1,082 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 $955 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	20h 45m
Direct flights	None

The fastest flight from Washington, D.C. to Bangkok takes 20h 45m

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 20h 45m.
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 15 as of June 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 $732	Free Cancellation	Rating 7.3 154 reviews	Search Air China flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.1 95 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $786	Free Cancellation	Rating 7.3 1,444 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $815	Free Cancellation	Rating 7.4 3,730 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $833	Free Cancellation	Rating 7.4 4,408 reviews	Search Turkish Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.3 1,220 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.1 2,984 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 7.9 12,464 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $936	Free Cancellation	Rating 7.4 9,772 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 $513

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 10/20. 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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Air Canada flights from Washington, D.C. to Bangkok

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

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 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 from Washington, D.C. 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

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