S$ 579+ Cheap Flights from Southeast Asia to Washington, D.C. Dulles Intl Airport | Cheapflights

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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 6 November 2025.

Mon 10-1111:40SIN - IAD

1 stop37h 05mTurkish Airlines

Mon 24-1113:30IAD - SIN

1 stop39h 05mTurkish Airlines

Deal found 4-11S$ 1,306

Thu 20-1116:55BKK - IAD

3 stops30h 54mUnited Airlines

Thu 15-112:40IAD - BKK

2 stops34h 45mUnited Airlines

Deal found 4-11S$ 1,363

Tue 18-1123:15BKK - IAD

1 stop22h 35mKorean Air

Tue 25-1111:50IAD - BKK

1 stop37h 35mKorean Air

Deal found 3-11S$ 1,369

Sun 21-1216:55BKK - IAD

3 stops40h 26mUnited Airlines

Sat 10-118:15IAD - BKK

2 stops29h 10mUnited Airlines

Deal found 5-11S$ 1,371

Mon 10-1114:25SIN - IAD

2 stops28h 58mMultiple Airlines

Mon 24-1107:38IAD - SIN

2 stops40h 27mMultiple Airlines

Deal found 4-11S$ 1,374

Tue 18-1116:55BKK - IAD

3 stops36h 35mUnited Airlines

Tue 25-1118:39IAD - BKK

2 stops28h 46mUnited Airlines

Deal found 3-11S$ 1,375

Mon 10-1122:30SIN - IAD

2 stops31h 34mDelta

Mon 24-1111:50IAD - SIN

1 stop28h 10mDelta

Deal found 4-11S$ 1,421

Thu 20-1123:15BKK - IAD

1 stop22h 35mKorean Air

Mon 24-1111:50IAD - BKK

1 stop24h 55mKorean Air

Deal found 3-11S$ 1,447

Thu 20-1102:05BKK - IAD

2 stops31h 27mDelta

Thu 15-106:00IAD - BKK

2 stops30h 55mDelta

Deal found 4-11S$ 1,450

Fri 21-1113:15BKK - IAD

1 stop39h 25mSWISS

Sun 30-1120:30IAD - BKK

1 stop26h 15mSWISS

Deal found 4-11S$ 1,461

Sun 16-1103:00BKK - IAD

1 stop24h 55mQatar Airways

Wed 14-110:40IAD - BKK

1 stop20h 45mQatar Airways

Deal found 4-11S$ 1,489

Sun 16-1102:00BKK - IAD

1 stop25h 55mQatar Airways

Thu 15-120:05IAD - BKK

1 stop34h 20mQatar Airways

Deal found 4-11S$ 1,491

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 6 November 2025.

Wed 11-322:30SIN - IAD

1 stop24h 20mKorean Air

Sun 15-312:50IAD - SIN

1 stop28h 10mKorean Air

Deal found 4-11S$ 1,274

Tue 3-319:25SIN - IAD

1 stop26h 40mEtihad Airways

Thu 12-315:35IAD - SIN

1 stop30h 00mEtihad Airways

Deal found 5-11S$ 1,280

Wed 4-302:05BKK - IAD

2 stops34h 19mDelta

Wed 15-407:10IAD - BKK

2 stops29h 30mDelta

Deal found 6-11S$ 1,447

Tue 3-319:25SIN - IAD

1 stop26h 40mEtihad Airways

Mon 16-315:35IAD - SIN

1 stop30h 00mEtihad Airways

Deal found 5-11S$ 1,280

Thu 5-321:30BKK - IAD

1 stop24h 20mKorean Air

Wed 15-413:15IAD - BKK

1 stop23h 25mKorean Air

Deal found 6-11S$ 1,361

Mon 2-319:25SIN - IAD

1 stop26h 40mEtihad Airways

Sun 15-315:35IAD - SIN

1 stop30h 00mEtihad Airways

Deal found 5-11S$ 1,280

Thu 20-1102:05BKK - IAD

2 stops31h 27mDelta

Sun 18-106:20IAD - BKK

2 stops30h 35mDelta

Deal found 4-11S$ 1,450

Sun 15-200:55BKK - IAD

1 stop20h 55mKorean Air

Sun 22-312:50IAD - BKK

1 stop24h 55mKorean Air

Deal found 5-11S$ 1,362

Tue 3-319:25SIN - IAD

1 stop26h 40mEtihad Airways

Sun 15-315:35IAD - SIN

1 stop30h 00mEtihad Airways

Deal found 5-11S$ 1,280

Sun 16-1102:05BKK - IAD

2 stops31h 27mDelta

Thu 15-106:00IAD - BKK

2 stops30h 55mDelta

Deal found 4-11S$ 1,450

Mon 2-319:25SIN - IAD

1 stop26h 40mEtihad Airways

Mon 16-315:35IAD - SIN

1 stop30h 00mEtihad Airways

Deal found 5-11S$ 1,280

Fri 30-100:55BKK - IAD

1 stop20h 55mKorean Air

Sun 1-311:50IAD - BKK

1 stop45h 40mKorean Air

Deal found 5-11S$ 1,443

Sat 22-1100:55BKK - IAD

2 stops32h 37mDelta

Wed 14-106:20IAD - BKK

2 stops27h 10mDelta

Deal found 4-11S$ 1,450

Sun 1-319:25SIN - IAD

1 stop26h 40mEtihad Airways

Tue 17-315:35IAD - SIN

1 stop30h 00mEtihad Airways

Deal found 5-11S$ 1,280

Wed 19-1121:30BKK - IAD

1 stop24h 20mKorean Air

Mon 12-111:50IAD - BKK

1 stop23h 30mKorean Air

Deal found 4-11S$ 1,447

Thu 20-1100:55BKK - IAD

2 stops32h 37mDelta

Sat 17-106:00IAD - BKK

2 stops29h 20mDelta

Deal found 4-11S$ 1,450

Sat 28-219:25SIN - IAD

1 stop26h 40mEtihad Airways

Thu 12-315:35IAD - SIN

1 stop30h 00mEtihad Airways

Deal found 5-11S$ 1,280

Tue 18-1123:15BKK - IAD

1 stop22h 35mKorean Air

Mon 12-111:50IAD - BKK

1 stop23h 30mKorean Air

Deal found 4-11S$ 1,447

Tue 3-319:25SIN - IAD

1 stop26h 40mEtihad Airways

Wed 11-315:35IAD - SIN

1 stop30h 00mEtihad Airways

Deal found 5-11S$ 1,280

Last-minute flights from Southeast Asia to Dulles Intl
Discover last-minute flight deals from Southeast Asia to Dulles Intl. Data last updated 6 November 2025 and is based on user searches.

Mon 10-1111:40SIN - IAD

1 stop37h 05mTurkish Airlines

Mon 24-1113:30IAD - SIN

1 stop39h 05mTurkish Airlines

Deal found 4-11S$ 1,306

Mon 10-1114:25SIN - IAD

2 stops28h 58mMultiple Airlines

Mon 24-1107:38IAD - SIN

2 stops40h 27mMultiple Airlines

Deal found 4-11S$ 1,374

Mon 10-1122:30SIN - IAD

2 stops31h 34mDelta

Mon 24-1111:50IAD - SIN

1 stop28h 10mDelta

Deal found 4-11S$ 1,421

Sun 16-1103:00BKK - IAD

1 stop24h 55mQatar Airways

Wed 14-110:40IAD - BKK

1 stop20h 45mQatar Airways

Deal found 4-11S$ 1,489

Sun 16-1102:00BKK - IAD

1 stop25h 55mQatar Airways

Thu 15-120:05IAD - BKK

1 stop34h 20mQatar Airways

Deal found 4-11S$ 1,491

Tue 18-1123:15BKK - IAD

1 stop22h 35mKorean Air

Tue 25-1111:50IAD - BKK

1 stop37h 35mKorean Air

Deal found 3-11S$ 1,369

Tue 18-1116:55BKK - IAD

3 stops36h 35mUnited Airlines

Tue 25-1118:39IAD - BKK

2 stops28h 46mUnited Airlines

Deal found 3-11S$ 1,375

Thu 20-1116:55BKK - IAD

3 stops30h 54mUnited Airlines

Thu 15-112:40IAD - BKK

2 stops34h 45mUnited Airlines

Deal found 4-11S$ 1,363

Thu 20-1123:15BKK - IAD

1 stop22h 35mKorean Air

Wed 26-1111:50IAD - BKK

1 stop23h 30mKorean Air

Deal found 3-11S$ 1,447

Thu 20-1102:05BKK - IAD

2 stops31h 27mDelta

Thu 15-106:00IAD - BKK

2 stops30h 55mDelta

Deal found 4-11S$ 1,450

Fri 21-1113:15BKK - IAD

1 stop39h 25mSWISS

Sun 30-1120:30IAD - BKK

1 stop26h 15mSWISS

Deal found 4-11S$ 1,461

Sun 21-1216:55BKK - IAD

3 stops40h 26mUnited Airlines

Sat 10-118:15IAD - BKK

2 stops29h 10mUnited Airlines

Deal found 5-11S$ 1,371

One-way flights from Southeast Asia to Dulles Intl
Search for one-way flight options from Southeast Asia to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 6 November 2025.

Thu 16-423:25SIN - IAD

1 stop32h 05mAir China

Deal found 5-11S$ 579

Thu 25-1217:15SIN - IAD

1 stop38h 15mAir China

Deal found 4-11S$ 599

Thu 27-1123:55SIN - IAD

1 stop31h 35mAir China

Deal found 3-11S$ 609

Sun 16-1121:15SIN - IAD

2 stops31h 15mMultiple Airlines

Deal found 4-11S$ 668

Sun 16-1119:25SIN - IAD

1 stop33h 05mEtihad Airways

Deal found 4-11S$ 693

Mon 22-1217:15SIN - IAD

1 stop38h 15mAir China

Deal found 5-11S$ 702

Mon 24-1119:25SIN - IAD

1 stop33h 05mEtihad Airways

Deal found 4-11S$ 710

Sun 23-1119:25SIN - IAD

1 stop33h 05mEtihad Airways

Deal found 4-11S$ 722

Fri 14-1104:15SIN - IAD

2 stops48h 15mMultiple Airlines

Deal found 4-11S$ 732

Fri 20-202:55BKK - IAD

1 stop42h 10mEtihad Airways

Deal found 5-11S$ 786

Thu 22-100:55BKK - IAD

1 stop20h 55mKorean Air

Deal found 5-11S$ 814

Tue 31-313:20BKK - IAD

2 stops27h 29mMultiple Airlines

Deal found 5-11S$ 857

Cheap flight deals from Southeast Asia to Dulles Intl

Round-trip from	S$ 1,131
One-way from	S$ 579

Air China

Air China
2-3-13-3
2 total stops
60h 50m total
Southeast Asia to Washington, D.C.

Air China

Air China
16-4
1 total stop
32h 05m 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

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 11-3

22:30-10:50

1 stop24h 20m

Washington, D.C. Dulles Intl

Sun 15-3

12:50-05:00

1 stop28h 10m

S$ 1,274

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 12-3

15:35-09:35

1 stop30h 00m

S$ 1,280

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Mon 16-3

15:35-09:35

1 stop30h 00m

S$ 1,280

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 2-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 15-3

15:35-09:35

1 stop30h 00m

S$ 1,280

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 15-3

15:35-09:35

1 stop30h 00m

S$ 1,280

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 2-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Mon 16-3

15:35-09:35

1 stop30h 00m

S$ 1,280

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 1-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Tue 17-3

15:35-09:35

1 stop30h 00m

S$ 1,280

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 28-2

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 12-3

15:35-09:35

1 stop30h 00m

S$ 1,280

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Wed 11-3

15:35-09:35

1 stop30h 00m

S$ 1,280

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Thu 5-3

21:30-09:50

1 stop24h 20m

Washington, D.C. Dulles Intl

Wed 15-4

13:15-23:40

1 stop23h 25m

S$ 1,361

Flights are sorted by cheapest return flights first.

Deals found on 4-11

Showing 1-10 of 39 results

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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.

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

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

Currently, October is the cheapest month in which you can book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport (average of S$ 1,031). Flying from Southeast Asia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,269). 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!!

5.5

Fair

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 20m. Fly via Korean Air or Etihad Airways to get the fastest option. Airlines will cover a distance of 15521 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from Southeast Asia to Washington, D.C. Dulles Intl Airport one-way?
For one-way options, check prices for Etihad Airways. According to our data, you can fly for as low as S$ 786. Users have also found prices from S$ 795 and S$ 814 on IndiGo and Korean Air, respectively.
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, October is the cheapest month in which you can book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport (average of S$ 1,031). Flying from Southeast Asia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,269). 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 for Southeast Asia to Dulles Intl

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Singapore to Dulles Intl flights

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Complete your trip

Washington, D.C. Dulles Intl Airport car hire

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Foggy Bottom - West End car hire

Southwest Waterfront car hire

Columbia Heights car hire

Adams Morgan car hire

Anacostia car hire

Top 5 airlines flying from Southeast Asia to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	CheapestS$ 1,277	AverageS$ 1,505	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
United Airlines	CheapestS$ 1,291	AverageS$ 1,601	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Korean Air	CheapestS$ 1,292	AverageS$ 2,231	FlexibilityNo cancel fee	On-time81%	Search Korean Air flights
Air India	CheapestS$ 1,348	AverageS$ 1,393	FlexibilityNo cancel fee	On-timeN/A	Search Air India flights
Qatar Airways	CheapestS$ 1,806	AverageS$ 1,936	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!

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