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Dulles Intl

$462+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
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 December 16, 2025.

This Gotogate deal was found by Cheapflights users on 12/16. 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.
Sun 12/287:25 pmSIN - IAD
1 stop26h 40mMultiple Airlines
Sun 1/119:15 pmIAD - SIN
2 stops31h 05mMultiple Airlines
Deal found 12/16$1,081
This Gotogate deal was found by Cheapflights users on 12/16. 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.
Sun 12/287:25 pmSIN - IAD
1 stop26h 40mEtihad Airways
Sun 1/112:35 pmIAD - SIN
1 stop30h 00mEtihad Airways
Deal found 12/16$1,125
This Gotogate deal was found by Cheapflights users on 12/15. 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 12/186:30 pmSIN - IAD
2 stops37h 00mAir China
Fri 1/910:00 pmIAD - SIN
1 stop29h 25mAir China
Deal found 12/15$1,292
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Thu 12/1810:10 amSIN - IAD
2 stops25h 56mUnited Airlines
Sat 1/310:05 pmIAD - SIN
1 stop44h 55mUnited Airlines
Deal found 12/15$1,384
This Booking.com deal was found by Cheapflights users on 12/15. 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.
Thu 12/1811:15 amSIN - IAD
2 stops45h 05mIndiGo
Sat 1/31:30 pmIAD - SIN
2 stops39h 15mIndiGo
Deal found 12/15$1,387
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Wed 12/1710:10 amSIN - IAD
3 stops38h 45mUnited Airlines
Sun 12/286:37 pmIAD - SIN
1 stop36h 38mUnited Airlines
Deal found 12/15$1,422
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Thu 12/1810:20 pmSIN - IAD
2 stops26h 25mUnited Airlines
Fri 1/98:15 amIAD - SIN
2 stops27h 40mUnited Airlines
Deal found 12/15$1,496
This Mytrip deal was found by Cheapflights users on 12/15. 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.
Thu 12/1811:15 amSIN - IAD
2 stops45h 05mMultiple Airlines
Fri 1/96:10 pmIAD - SIN
3 stops30h 10mMultiple Airlines
Deal found 12/15$1,523
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/2210:10 amSIN - IAD
2 stops25h 56mUnited Airlines
Sun 12/283:22 pmIAD - SIN
1 stop39h 53mUnited Airlines
Deal found 12/15$1,528

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 December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$913
(Booking.com)

One-way from

$462
(FlightHub)

Popular in

November

Cheapest in

March

Average price

$1,286
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 ($520 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 December 2025
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 December 16, 2025.
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

Sat 3/7

11:15 am-7:20 pm

2 stops45h 05m

Washington, D.C. Dulles Intl

Sat 3/14

10:15 pm-5:20 pm

2 stops31h 05m

$913

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 5/14

9:10 pm-9:45 am

1 stop24h 35m

Washington, D.C. Dulles Intl

Sat 8/8

3:35 pm-9:15 am

1 stop29h 40m

$965

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 3/1

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 4/30

3:35 pm-9:15 am

1 stop29h 40m

$965

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 1/30

9:30 am-6:30 pm

1 stop22h 00m

Washington, D.C. Dulles Intl

Fri 2/6

10:00 pm-6:50 am

1 stop43h 50m

$966

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 2/12

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 2/15

2:35 pm-9:35 am

1 stop30h 00m

$985

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 3/7

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Sat 3/14

3:35 pm-9:35 am

1 stop30h 00m

$986

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 3/7

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Sat 3/14

10:15 pm-5:20 pm

2 stops31h 05m

$1,021

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 12/28

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 1/11

9:15 pm-5:20 pm

2 stops31h 05m

$1,081

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 12/28

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 1/11

2:35 pm-9:35 am

1 stop30h 00m

$1,125

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 1/30

9:30 am-6:30 pm

1 stop22h 00m

Washington, D.C. Dulles Intl

Fri 2/6

2:35 pm-1:20 pm

3 stops33h 45m

$1,148

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 21 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 December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 $819). 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 22h. 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 Korean Air ($633).

  • 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 $819). 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
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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