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 52m on average. Another popular route from Washington, D.C. to Bangkok is flying from Baltimore to Bangkok Suvarnabhumi Airport, which will take roughly 24h 30m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Bangkok?

Qatar Airways, Turkish Airlines and Etihad Airways 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 42% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 19 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?

STARLUX Airlines and JetBlue are the most popular carriers operating from Washington, D.C. to Bangkok

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 19 as of October 2025.

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.

$388 Cheap Flights from Washington, D.C. to Bangkok in 2025/26

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Cheap round-trip flights

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7:40 pm - 8:10 amBWI-BKK

24h 30m2 stops

12:15 pm - 6:40 pmBKK-BWI

42h 25m2 stops

$766Multiple Airlines

Find Deal

Sat, Nov 29 - Sat, Dec 6

7:40 pm - 8:10 amBWI-BKK

24h 30m2 stops

12:15 pm - 7:40 pmBKK-BWI

42h 25m2 stops

$836Multiple Airlines

Find Deal

Sat, Mar 7 - Fri, Mar 20

9:10 pm - 11:20 pmIAD-BKK

38h 10m1 stop

8:05 am - 3:30 pmBKK-IAD

67h 25m2 stops

$839Etihad Airways

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Tue, Nov 25 - Wed, Dec 10

7:14 pm - 8:00 pmBWI-BKK

36h 46m2 stops

9:10 pm - 5:55 pmBKK-BWI

32h 45m2 stops

$841Singapore Airlines

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Wed, Jan 14 - Wed, Feb 25

9:00 pm - 1:25 pmIAD-BKK

29h 25m1 stop

8:00 pm - 3:40 pmBKK-IAD

30h 40m1 stop

$842Qatar Airways

Find Deal

Tue, Apr 7 - Wed, Apr 22

9:10 pm - 6:00 pmIAD-BKK

32h 50m1 stop

2:55 am - 3:30 pmBKK-IAD

24h 35m1 stop

$843Etihad Airways

Find Deal

Wed, Jan 7 - Wed, Feb 4

10:40 am - 7:25 pmIAD-BKK

20h 45m1 stop

6:55 pm - 3:55 pmBKK-IAD

33h 00m1 stop

$850Qatar Airways

Find Deal

Wed, Nov 19 - Wed, Jan 28

9:15 pm - 3:05 pmIAD-BKK

29h 50m1 stop

10:10 am - 11:45 amBKK-IAD

37h 35m1 stop

$879Turkish Airlines

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Mon, Nov 24 - Mon, Dec 1

8:20 am - 11:20 pmDCA-BKK

27h 00m2 stops

9:40 am - 1:25 pmBKK-DCA

39h 45m2 stops

$879Korean Air

Find Deal

Wed, Jan 21 - Wed, Feb 4

6:00 am - 12:55 amDCA-BKK

30h 55m2 stops

9:30 pm - 2:23 pmBKK-DCA

28h 53m2 stops

$933Korean Air

Find Deal

Wed, Dec 3 - Sun, Dec 21

American Airlines flights from Washington, D.C. to Bangkok

Our best American Airlines deals on Washington, D.C. to Bangkok flight tickets

American Airlines

Jan 19

BWI6:00 amBaltimore/Washington

35h 05m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Feb 18

BKK8:05 amBangkok Suvarnabhumi

25h 35m

2 stops

BWI9:40 pmBaltimore/Washington

$1,003

Find similar

American Airlines

Oct 21

DCA10:06 amWashington, D.C. Reagan-National

25h 54m

2 stops

BKK11:00 pmBangkok Suvarnabhumi

Nov 8

BKK8:05 amBangkok Suvarnabhumi

24h 54m

2 stops

DCA8:59 pmWashington, D.C. Reagan-National

$1,401

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ANA flights from Washington, D.C. to Bangkok

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

ANA

Jan 24

DCA2:00 pmWashington, D.C. Reagan-National

27h 10m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Feb 8

BKK10:25 pmBangkok Suvarnabhumi

26h 48m

2 stops

DCA1:13 pmWashington, D.C. Reagan-National

$930

Find similar

ANA

Oct 21

IAD12:25 pmWashington, D.C. Dulles Intl

29h 10m

1 stop

BKK4:35 amBangkok Suvarnabhumi

Oct 27

BKK2:20 pmBangkok Suvarnabhumi

37h 20m

1 stop

IAD4:40 pmWashington, D.C. Dulles Intl

$956

Find similar

ANA

Apr 7

BWI6:17 amBaltimore/Washington

35h 18m

2 stops

BKK4:35 amBangkok Suvarnabhumi

Apr 22

BKK1:55 pmBangkok Suvarnabhumi

35h 02m

2 stops

BWI1:57 pmBaltimore/Washington

$1,031

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sat 11/29

7:40 pm-8:10 am

2 stops24h 30m

Bangkok Suvarnabhumi

Sat 12/6

12:15 pm-6:40 pm

2 stops42h 25m

$766

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Sat 3/7

7:40 pm-8:10 am

2 stops24h 30m

Bangkok Suvarnabhumi

Fri 3/20

12:15 pm-7:40 pm

2 stops42h 25m

$836

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 11/25

9:10 pm-11:20 pm

1 stop38h 10m

Bangkok Suvarnabhumi

Wed 12/10

8:05 am-3:30 pm

2 stops67h 25m

$839

BaltimoreBangkok

BWI - BKK

BWIBKK

Baltimore/Washington

Wed 1/14

7:14 pm-8:00 pm

2 stops36h 46m

Bangkok Suvarnabhumi

Wed 2/25

9:10 pm-5:55 pm

2 stops32h 45m

$841

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 4/7

9:00 pm-1:25 pm

1 stop29h 25m

Bangkok Suvarnabhumi

Wed 4/22

8:00 pm-3:40 pm

1 stop30h 40m

$842

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 1/7

9:10 pm-6:00 pm

1 stop32h 50m

Bangkok Suvarnabhumi

Wed 2/4

2:55 am-3:30 pm

1 stop24h 35m

$843

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Wed 11/19

10:40 am-7:25 pm

1 stop20h 45m

Bangkok Suvarnabhumi

Wed 1/28

6:55 pm-3:55 pm

1 stop33h 00m

$850

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 11/24

9:15 pm-3:05 pm

1 stop29h 50m

Bangkok Suvarnabhumi

Mon 12/1

10:10 am-11:45 am

1 stop37h 35m

$879

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 1/21

8:20 am-11:20 pm

2 stops27h 00m

Bangkok Suvarnabhumi

Wed 2/4

9:40 am-1:25 pm

2 stops39h 45m

$879

Washington, D.C.Bangkok

DCA - BKK

DCABKK

Washington, D.C. Reagan-National

Wed 12/3

6:00 am-12:55 am

2 stops30h 55m

Bangkok Suvarnabhumi

Sun 12/21

9:30 pm-2:23 pm

2 stops28h 53m

$933

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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

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Other information

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 October instead. Flights to Bangkok in October, while not as cheap as those in September, still average around $1,038.

What is the cheapest day to depart on your flight to Bangkok?

On average, the least expensive day to fly to Bangkok from Washington, D.C. is on a Saturday. momondo users have found tickets for Saturday departures for as low as $1,210. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Washington, D.C. to Bangkok on a Friday will generally be more expensive and average around $1,354. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Bangkok?

According to our data, the cheapest time of day to fly to Bangkok is in the evening. momondo users have found flights departing from Washington, D.C. to Bangkok in the evening for as low as $1,143. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around $1,365. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $1,206 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 $1,015 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

Direct flights	None

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

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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 19 as of October 2025.
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 7.2 114 reviews	Search Air China flights
Air India	PriceFrom $700	Free Cancellation	Rating 5.5 2,937 reviews	Search Air India flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,149 reviews	Search Korean Air flights
SAUDIA	PriceFrom $834	Free Cancellation	Rating 7.4 636 reviews	Search SAUDIA flights
Etihad Airways	PriceFrom $848	Free Cancellation	Rating 7.4 1,280 reviews	Search Etihad Airways flights
Qatar Airways	PriceFrom $864	Free Cancellation	Rating 7.4 3,652 reviews	Search Qatar Airways flights
ANA	PriceFrom $895	Free Cancellation	Rating 8.4 986 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,907 reviews	Search JetBlue flights
Turkish Airlines	PriceFrom $901	Free Cancellation	Rating 7.3 4,010 reviews	Search Turkish Airlines flights
Delta	PriceFrom $928	Free Cancellation	Rating 7.9 7,978 reviews	Search Delta 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 $388

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 11/28. 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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American Airlines flights from Washington, D.C. to Bangkok

Our best American Airlines 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

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

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 October instead. Flights to Bangkok in October, while not as cheap as those in September, still average around $1,038.

What is the cheapest day to depart on your flight to Bangkok?

What is the cheapest time of day to depart on your flight 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?

STARLUX Airlines and JetBlue are the most popular carriers operating 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

Direct flights

How far is Washington, D.C. to Bangkok by plane?

When did momondo last update prices for flights from Washington, D.C. to Bangkok?

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

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

What documentation or ID do you need to fly 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?

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

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

How can momondo help me find flights from Washington, D.C. to Bangkok?

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

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