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Cheap flights from Southeast Asia to Washington, D.C. Dulles Intl Airport from S$ 673

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16-3. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — IAD
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southeast Asia to Dulles Intl

Enter your travel dates to find the best prices.

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 22 January 2026.

Thu 5-303:00
SIN
-
IAD
2 stops28h 30m
Air China
Fri 13-323:00
IAD
-
SIN
1 stop29h 25m
Air China
Deal found 20-1S$ 1,243
Sun 25-110:15
SIN
-
IAD
1 stop38h 30m
Turkish Airlines
Mon 9-221:15
IAD
-
SIN
1 stop23h 45m
Turkish Airlines
Deal found 21-1S$ 1,268
Mon 27-411:10
SIN
-
IAD
1 stop36h 25m
Turkish Airlines
Sun 3-521:45
IAD
-
SIN
1 stop23h 00m
Turkish Airlines
Deal found 20-1S$ 1,288
Fri 6-311:40
SIN
-
IAD
1 stop37h 05m
Turkish Airlines
Fri 13-322:15
IAD
-
SIN
1 stop22h 20m
Turkish Airlines
Deal found 20-1S$ 1,300
Mon 2-217:50
SIN
-
IAD
2 stops37h 40m
Air China
Tue 3-222:00
IAD
-
SIN
2 stops42h 30m
Air China
Deal found 21-1S$ 1,338
Sun 25-114:25
SIN
-
IAD
2 stops39h 01m
Multiple Airlines
Mon 9-218:04
IAD
-
SIN
2 stops30h 01m
Multiple Airlines
Deal found 21-1S$ 1,343
Sat 7-310:15
SIN
-
IAD
1 stop38h 30m
Turkish Airlines
Sat 14-314:30
IAD
-
SIN
1 stop31h 30m
Turkish Airlines
Deal found 21-1S$ 1,348
Tue 7-417:30
BKK
-
IAD
2 stops58h 35m
Multiple Airlines
Sun 3-516:25
IAD
-
BKK
2 stops30h 20m
Multiple Airlines
Deal found 19-1S$ 1,352
Mon 2-210:55
SIN
-
IAD
1 stop35h 15m
United Airlines
Tue 3-212:50
IAD
-
SIN
2 stops30h 10m
United Airlines
Deal found 21-1S$ 1,353
Thu 22-117:15
BKK
-
IAD
2 stops35h 11m
Multiple Airlines
Thu 29-118:04
IAD
-
BKK
2 stops29h 06m
Multiple Airlines
Deal found 21-1S$ 1,367
Fri 20-216:55
BKK
-
IAD
3 stops30h 54m
United Airlines
Mon 2-319:13
IAD
-
BKK
2 stops28h 12m
United Airlines
Deal found 19-1S$ 1,374
Mon 9-216:55
BKK
-
IAD
3 stops40h 22m
United Airlines
Thu 19-219:13
IAD
-
BKK
2 stops28h 12m
United Airlines
Deal found 20-1S$ 1,377

Find flight deals from Southeast Asia to Dulles Intl

Keep the following information in mind while searching for Southeast Asia to Dulles Intl flight deals. Data was last updated 22 January 2026.

Round-trip from

S$ 1,243

One-way from

S$ 673
Air China
  • Air China
  • 5-3-13-3
  • 3 total stops
  • 57h 55m total
  • Southeast Asia to Washington, D.C.
Search Deals
16-3
  • 16-3
  • 2 total stops
  • 48h 50m total
  • Southeast Asia to Washington, D.C.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southeast Asia to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 22 January 2026.
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

Southeast Asia

Fly to

Dulles Intl

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 27-4

11:10-11:35

1 stop36h 25m

Washington, D.C. Dulles Intl

Sun 3-5

21:45-08:45

1 stop23h 00m

S$ 1,288

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 27-4

13:45-05:50

2 stops28h 05m

Washington, D.C. Dulles Intl

Sun 3-5

19:20-12:35

2 stops29h 15m

S$ 1,338

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 7-3

10:15-11:45

1 stop38h 30m

Washington, D.C. Dulles Intl

Sat 14-3

14:30-10:00

1 stop31h 30m

S$ 1,348

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 2-2

10:55-09:10

1 stop35h 15m

Washington, D.C. Dulles Intl

Tue 3-2

12:50-08:00

2 stops30h 10m

S$ 1,353

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Sun 3-5

09:35-00:18

2 stops49h 43m

Washington, D.C. Dulles Intl

Thu 6-8

08:25-23:55

2 stops28h 30m

S$ 1,367

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Fri 20-2

16:55-11:49

3 stops30h 54m

Washington, D.C. Dulles Intl

Fri 27-2

22:05-11:25

2 stops49h 20m

S$ 1,377

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 13-5

02:00-07:34

2 stops41h 34m

Washington, D.C. Dulles Intl

Sat 8-8

17:01-12:35

2 stops31h 34m

S$ 1,390

BangkokWashington, D.C.

BKK - IAD

BKKIAD

Bangkok Suvarnabhumi

Wed 8-4

10:50-17:05

2 stops41h 15m

Washington, D.C. Dulles Intl

Wed 9-9

15:25-12:10

2 stops33h 45m

S$ 1,402

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 1-3

10:15-19:20

1 stop46h 05m

Washington, D.C. Dulles Intl

Thu 30-4

21:45-09:30

1 stop23h 45m

S$ 1,439

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 27-4

11:05-15:40

1 stop40h 35m

Washington, D.C. Dulles Intl

Sun 3-5

12:50-06:45

2 stops29h 55m

S$ 1,451

Flights are sorted by cheapest return flights first.

Deals found on 21-1

Showing 1-10 of 40 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, March is the cheapest month in which you can book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport (average of S$ 999). Flying from Southeast Asia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,245). 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 insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 22 January 2026.
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.
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Overall

8.4

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!!
Korean Air
8.4
Very Good
1,187 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Overall

8.4

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!!
Qatar Airways
7.4
Good
3,717 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Overall

8.4

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
9,192 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Overall

8.4

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
4,200 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Overall

8.4

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

Find useful and relevant information for your journey from Southeast Asia to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 35h 15m. Fly via Turkish Airlines or United Airlines 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.

  • 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, March is the cheapest month in which you can book a flight from Southeast Asia to Washington, D.C. Dulles Intl Airport (average of S$ 999). Flying from Southeast Asia to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,245). 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

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Alternative routes for Southeast Asia to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Singapore to Dulles Intl flights
Singapore to Reagan-National flights
Singapore to Baltimore flights

Top 4 airlines flying from Southeast Asia to Dulles Intl

Discover the top 4 airlines that operate flights from Southeast Asia to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapestS$ 960AverageS$ 2,076FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
United AirlinesCheapestS$ 1,134AverageS$ 1,556FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Turkish AirlinesCheapestS$ 1,254AverageS$ 1,448FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapestS$ 1,779AverageS$ 1,899FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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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?

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