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Dulles Intl

$524+ Cheap flights from Singapore (SIN) to Dulles Intl (IAD)

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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Singapore to Dulles Intl

Cheapest flights from Singapore to Dulles Intl
Explore the most affordable flight options available from Singapore to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Gotogate deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/53:00 am
SIN
-
IAD
2 stops28h 30m
Air China
Fri 3/1311:00 pm
IAD
-
SIN
1 stop29h 25m
Air China
Deal found 1/20$968
This lastminute.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2510:15 am
SIN
-
IAD
1 stop38h 30m
Turkish Airlines
Mon 2/99:15 pm
IAD
-
SIN
1 stop23h 45m
Turkish Airlines
Deal found 1/21$988
This FlightHub deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:10 am
SIN
-
IAD
1 stop36h 25m
Turkish Airlines
Sun 5/39:45 pm
IAD
-
SIN
1 stop23h 00m
Turkish Airlines
Deal found 1/20$1,003
This Booking.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/611:40 am
SIN
-
IAD
1 stop37h 05m
Turkish Airlines
Fri 3/1310:15 pm
IAD
-
SIN
1 stop22h 20m
Turkish Airlines
Deal found 1/20$1,013
This Gotogate deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/25:50 pm
SIN
-
IAD
2 stops37h 40m
Air China
Tue 2/310:00 pm
IAD
-
SIN
2 stops42h 30m
Air China
Deal found 1/21$1,042
This China Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/252:25 pm
SIN
-
IAD
2 stops39h 01m
Multiple Airlines
Mon 2/96:04 pm
IAD
-
SIN
2 stops30h 01m
Multiple Airlines
Deal found 1/21$1,046
This Mytrip deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/710:15 am
SIN
-
IAD
1 stop38h 30m
Turkish Airlines
Sat 3/142:30 pm
IAD
-
SIN
1 stop31h 30m
Turkish Airlines
Deal found 1/21$1,050
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/210:55 am
SIN
-
IAD
1 stop35h 15m
United Airlines
Tue 2/312:50 pm
IAD
-
SIN
2 stops30h 10m
United Airlines
Deal found 1/21$1,054
This China Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/132:00 am
SIN
-
IAD
2 stops41h 34m
Multiple Airlines
Sat 8/85:01 pm
IAD
-
SIN
2 stops31h 34m
Multiple Airlines
Deal found 1/20$1,083

Find flight deals from Singapore to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$968
(Gotogate)

One-way from

$524
(Trip.com)

Popular in

November

Cheapest in

January

Average price

$1,055
Provider with most accurate pricing for Singapore Changi-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Singapore Changi-Washington, D.C. Dulles Intl flights.
Search Deals
From Singapore Changi to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Singapore Changi to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($519 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($189 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Singapore 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 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Singapore to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Singapore

Fly to

Dulles Intl

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 3/6

11:40 am-11:45 am

1 stop37h 05m

Washington, D.C. Dulles Intl

Fri 3/13

10:15 pm-8:35 am

1 stop22h 20m

$1,013

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 4/27

1:45 pm-5:50 am

2 stops28h 05m

Washington, D.C. Dulles Intl

Sun 5/3

7:20 pm-12:35 pm

2 stops29h 15m

$1,042

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 3/7

10:15 am-11:45 am

1 stop38h 30m

Washington, D.C. Dulles Intl

Sat 3/14

2:30 pm-10:00 am

1 stop31h 30m

$1,050

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 2/2

10:55 am-9:10 am

1 stop35h 15m

Washington, D.C. Dulles Intl

Tue 2/3

12:50 pm-8:00 am

2 stops30h 10m

$1,054

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 5/13

2:00 am-7:34 am

2 stops41h 34m

Washington, D.C. Dulles Intl

Sat 8/8

5:01 pm-12:35 pm

2 stops31h 34m

$1,083

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 3/1

10:15 am-7:20 pm

1 stop46h 05m

Washington, D.C. Dulles Intl

Thu 4/30

9:45 pm-9:30 am

1 stop23h 45m

$1,121

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 3/5

3:00 am-6:30 pm

2 stops28h 30m

Washington, D.C. Dulles Intl

Fri 3/13

11:00 pm-2:00 am

2 stops39h 00m

$1,146

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 3/5

10:15 am-7:20 pm

1 stop46h 05m

Washington, D.C. Dulles Intl

Mon 3/9

10:15 pm-8:45 am

1 stop22h 30m

$1,183

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 2/28

2:00 am-11:44 am

2 stops46h 44m

Washington, D.C. Dulles Intl

Thu 4/30

7:20 pm-12:35 pm

2 stops29h 15m

$1,190

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 5/27

11:10 am-7:50 pm

1 stop44h 40m

Washington, D.C. Dulles Intl

Sun 6/7

1:20 pm-8:45 am

1 stop31h 25m

$1,209

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 19 results
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Compare providers for flights from Singapore to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Singapore to Dulles Intl in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Singapore-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Singapore-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Singapore-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Singapore-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Singapore-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Singapore to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Singapore with our price prediction graph.
Estimated round-trip 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 Singapore to Washington, D.C. Dulles Intl Airport

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

Currently, March is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of $778). Flying from Singapore to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $2,212). 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.

How much does it cost to fly round-trip from Singapore to Washington, D.C. Dulles Intl Airport?

Related info for your journey

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

  • What airport do you fly from for flights from Singapore to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Singapore, you will be flying from Changi, which is the city’s only airport. Singapore Changi (SIN) is located 10.5 mi from the center of Singapore. There are 0 flights from Changi to Washington, D.C. Dulles Intl per day from 0 different airlines.

  • How long is the flight from Singapore to Washington, D.C. Dulles Intl Airport?

    Departing from Singapore to Washington, D.C. Dulles Intl Airport will take you 35h 15m. Airlines will cover a distance of 9644 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Singapore to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Singapore to Washington, D.C. Dulles Intl Airport are SAUDIA ($401), Air China ($436), and SWISS ($842).

  • Can I find deals for flights from Singapore to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Singapore to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Singapore to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Dulles Intl.

  • Can I find deals for business class flights from Singapore to Dulles Intl?

    Yes. Cheapflights offers flight deals from Singapore 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 Singapore to Washington, D.C. Dulles Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of $778). Flying from Singapore to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $2,212). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Herndon
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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