S$ 557+ Cheap Flights from Southeast Asia to Washington, D.C. Dulles Intl Airport | Cheapflights

English

Search for a country or language

Cheap flight deals from Southeast Asia to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Southeast Asia to Dulles Intl
Explore the most affordable flight options available from Southeast Asia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 February 2026.

Mon 13-411:10

SIN

-

IAD

1 stop36h 25m

Turkish Airlines

Mon 20-413:20

IAD

-

SIN

1 stop32h 10m

Turkish Airlines

Deal found 27-2S$ 1,258

Wed 4-300:55

BKK

-

IAD

2 stops34h 15m

Delta

Tue 10-307:00

IAD

-

BKK

2 stops29h 20m

Delta

Deal found 23-2S$ 1,266

Thu 16-410:25

SIN

-

IAD

1 stop45h 25m

Turkish Airlines

Thu 30-421:45

IAD

-

SIN

1 stop23h 45m

Turkish Airlines

Deal found 25-2S$ 1,267

Sun 29-310:25

SIN

-

IAD

1 stop37h 10m

Turkish Airlines

Sun 12-413:20

IAD

-

SIN

1 stop31h 25m

Turkish Airlines

Deal found 24-2S$ 1,308

Wed 14-1023:05

SIN

-

IAD

1 stop24h 30m

Turkish Airlines

Wed 21-1021:45

IAD

-

SIN

1 stop23h 00m

Turkish Airlines

Deal found 24-2S$ 1,337

Sun 14-609:35

BKK

-

IAD

1 stop41h 15m

United Airlines

Mon 2-1113:05

IAD

-

BKK

2 stops28h 05m

United Airlines

Deal found 27-2S$ 1,339

Sun 7-609:35

BKK

-

IAD

1 stop41h 15m

United Airlines

Sun 12-706:10

IAD

-

BKK

2 stops35h 25m

United Airlines

Deal found 25-2S$ 1,341

Thu 17-909:35

BKK

-

IAD

1 stop35h 30m

United Airlines

Wed 20-108:35

IAD

-

BKK

2 stops27h 45m

United Airlines

Deal found 25-2S$ 1,344

Wed 1-709:35

BKK

-

IAD

2 stops39h 33m

United Airlines

Mon 24-806:00

IAD

-

BKK

2 stops40h 35m

United Airlines

Deal found 25-2S$ 1,347

Thu 16-409:35

BKK

-

IAD

2 stops30h 50m

United Airlines

Thu 10-906:20

IAD

-

BKK

2 stops35h 15m

United Airlines

Deal found 26-2S$ 1,348

Wed 1-709:35

BKK

-

IAD

2 stops50h 10m

United Airlines

Thu 30-706:30

IAD

-

BKK

2 stops30h 25m

United Airlines

Deal found 26-2S$ 1,352

Mon 8-615:45

BKK

-

IAD

3 stops28h 39m

United Airlines

Sat 11-712:15

IAD

-

BKK

1 stop29h 20m

United Airlines

Deal found 25-2S$ 1,361

Best flights from Southeast Asia to Dulles Intl
Discover carefully curated flight deals from Southeast Asia to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 February 2026.

Wed 6-509:50

BKK

-

IAD

2 stops24h 42m

Delta

Sun 12-707:00

IAD

-

BKK

2 stops27h 45m

Delta

Deal found 23-2S$ 1,366

Wed 18-311:40

SIN

-

IAD

1 stop44h 40m

Turkish Airlines

Sun 22-322:15

IAD

-

SIN

1 stop22h 20m

Turkish Airlines

Deal found 26-2S$ 1,459

Fri 24-409:00

SIN

-

IAD

1 stop23h 46m

United Airlines

Fri 1-522:20

IAD

-

SIN

2 stops32h 15m

United Airlines

Deal found 26-2S$ 1,493

Thu 14-513:45

SIN

-

IAD

2 stops29h 49m

Multiple Airlines

Sat 8-818:14

IAD

-

SIN

2 stops42h 21m

Multiple Airlines

Deal found 25-2S$ 1,543

Tue 5-521:40

BKK

-

IAD

1 stop24h 35m

Korean Air

Sun 12-713:30

IAD

-

BKK

1 stop23h 05m

Korean Air

Deal found 23-2S$ 1,595

Wed 20-522:40

SIN

-

IAD

1 stop30h 45m

British Airways

Wed 27-517:40

IAD

-

SIN

1 stop34h 25m

British Airways

Deal found 25-2S$ 1,699

Wed 22-421:10

BKK

-

IAD

1 stop22h 30m

Emirates

Wed 15-710:55

IAD

-

BKK

1 stop21h 30m

Emirates

Deal found 25-2S$ 1,849

Sat 25-409:00

SIN

-

IAD

1 stop34h 50m

United Airlines

Sat 2-522:20

IAD

-

SIN

2 stops32h 15m

United Airlines

Deal found 26-2S$ 1,493

Mon 4-523:30

BKK

-

IAD

2 stops25h 34m

Delta

Tue 14-713:30

IAD

-

BKK

1 stop24h 35m

Delta

Deal found 23-2S$ 1,493

Sat 25-411:10

SIN

-

IAD

1 stop36h 25m

Turkish Airlines

Fri 1-521:45

IAD

-

SIN

1 stop32h 10m

Turkish Airlines

Deal found 26-2S$ 1,510

Tue 5-507:00

BKK

-

IAD

2 stops25h 18m

United Airlines

Thu 9-712:15

IAD

-

BKK

1 stop29h 20m

United Airlines

Deal found 23-2S$ 1,517

Wed 20-522:40

SIN

-

IAD

1 stop29h 10m

British Airways

Thu 28-519:15

IAD

-

SIN

1 stop32h 50m

British Airways

Deal found 25-2S$ 1,699

Wed 6-509:50

BKK

-

IAD

2 stops24h 42m

Delta

Mon 13-713:30

IAD

-

BKK

1 stop23h 05m

Delta

Deal found 23-2S$ 1,593

Thu 2-409:50

BKK

-

IAD

2 stops24h 50m

Delta

Sat 18-407:00

IAD

-

BKK

2 stops29h 35m

Delta

Deal found 24-2S$ 1,636

Sat 28-322:20

SIN

-

IAD

1 stop39h 05m

United Airlines

Sat 19-922:10

IAD

-

SIN

2 stops32h 25m

United Airlines

Deal found 25-2S$ 1,682

Mon 20-415:45

BKK

-

IAD

3 stops31h 03m

United Airlines

Mon 25-512:50

IAD

-

BKK

3 stops33h 45m

United Airlines

Deal found 24-2S$ 1,727

Sun 12-415:45

BKK

-

IAD

3 stops35h 37m

United Airlines

Sun 3-517:55

IAD

-

BKK

2 stops28h 40m

United Airlines

Deal found 25-2S$ 1,830

Sun 12-415:45

BKK

-

IAD

3 stops38h 15m

United Airlines

Mon 4-517:55

IAD

-

BKK

2 stops28h 40m

United Airlines

Deal found 25-2S$ 1,830

Fri 10-415:45

BKK

-

IAD

3 stops38h 15m

United Airlines

Sat 2-508:50

IAD

-

BKK

2 stops37h 45m

United Airlines

Deal found 25-2S$ 1,830

Wed 18-310:10

SIN

-

IAD

1 stop22h 39m

United Airlines

Sun 22-306:00

IAD

-

SIN

2 stops37h 00m

United Airlines

Deal found 26-2S$ 1,846

Find flight deals from Southeast Asia to Dulles Intl

Round-trip from	S$ 1,258
One-way from	S$ 557

Turkish Airlines

Turkish Airlines
13-4-20-4
2 total stops
68h 35m total
Southeast Asia to Washington, D.C.

Air China

Air China
12-3
1 total stop
31h 35m total
Southeast Asia to Washington, D.C.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southeast Asia to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6-5

09:50-23:32

2 stops24h 42m

Washington, D.C. Dulles Intl

Sun 12-7

07:00-21:45

2 stops27h 45m

S$ 1,366

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 18-3

11:40-20:20

1 stop44h 40m

Washington, D.C. Dulles Intl

Sun 22-3

22:15-08:35

1 stop22h 20m

S$ 1,459

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 24-4

09:00-20:46

1 stop23h 46m

Washington, D.C. Dulles Intl

Fri 1-5

22:20-18:35

2 stops32h 15m

S$ 1,493

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 25-4

09:00-07:50

1 stop34h 50m

Washington, D.C. Dulles Intl

Sat 2-5

22:20-18:35

2 stops32h 15m

S$ 1,493

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Mon 4-5

23:30-14:04

2 stops25h 34m

Washington, D.C. Dulles Intl

Tue 14-7

13:30-01:05

1 stop24h 35m

S$ 1,493

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 25-4

11:10-11:35

1 stop36h 25m

Washington, D.C. Dulles Intl

Fri 1-5

21:45-17:55

1 stop32h 10m

S$ 1,510

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5-5

07:00-21:18

2 stops25h 18m

Washington, D.C. Dulles Intl

Thu 9-7

12:15-04:35

1 stop29h 20m

S$ 1,517

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 14-5

13:45-07:34

2 stops29h 49m

Washington, D.C. Dulles Intl

Sat 8-8

18:14-00:35

2 stops42h 21m

S$ 1,543

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 6-5

09:50-23:32

2 stops24h 42m

Washington, D.C. Dulles Intl

Mon 13-7

13:30-23:35

1 stop23h 05m

S$ 1,593

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Tue 5-5

21:40-11:15

1 stop24h 35m

Washington, D.C. Dulles Intl

Sun 12-7

13:30-23:35

1 stop23h 05m

S$ 1,595

Flights are sorted by cheapest return flights first.

Deals found on 24-2

Showing 1-10 of 41 resultsSorted by cheapest first

1

2

3

...

5

Best time to book a flight from Southeast Asia to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Southeast Asia with our price prediction graph.

SIN-IAD

BKK-IAD

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Southeast Asia to Washington, D.C. Dulles Intl Airport

zzYJX-IAD

SIN-IAD

BKK-IAD

What is the cheapest month to book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport (average of S$ 823). Flying from Southeast Asia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,226). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Korean Air, Qatar Airways, andUnited Airlines from Southeast Asia to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

8.4

Very Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

7.4

Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

United Airlines

7.4

Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Turkish Airlines

7.3

Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

How long is the flight from Southeast Asia to Washington, D.C. Dulles Intl Airport?
There are many flights that can get you from Southeast Asia to Washington, D.C. Dulles Intl Airport in 24h 42m. Fly via United Airlines, Turkish Airlines, or Delta to get the fastest option. Airlines will cover a distance of 14149 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Southeast Asia to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Southeast Asia to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southeast Asia to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southeast Asia to Dulles Intl.
Can I find deals for business class flights from Southeast Asia to Dulles Intl?
Yes. Cheapflights offers flight deals from Southeast Asia to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport (average of S$ 823). Flying from Southeast Asia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,226). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Popular flights

Alternative routes for Southeast Asia to Dulles Intl

Singapore to Dulles Intl flights

Singapore to Baltimore flights

Singapore to Reagan-National flights

Top 4 airlines flying from Southeast Asia to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Korean Air	CheapestS$ 945	AverageS$ 1,779	FlexibilityNo cancel fee	On-time81%	Search Korean Air flights
United Airlines	CheapestS$ 1,116	AverageS$ 1,630	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Turkish Airlines	CheapestS$ 1,255	AverageS$ 1,447	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
Qatar Airways	CheapestS$ 1,751	AverageS$ 1,870	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Southeast Asia to Dulles Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Southeast Asia today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Southeast Asia to Dulles Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Southeast Asia to Dulles Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Southeast Asia to Dulles Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Southeast Asia to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Southeast Asia to Dulles Intl become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.