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Washington, D.C.

$542+ Cheap flights from Singapore (SIN) to Washington, D.C. (WAS)

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 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — WAS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Singapore to Washington, D.C.

Cheapest flights from Singapore to Washington, D.C.
Explore the most affordable flight options available from Singapore to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/1910:10 amSIN - IAD
2 stops25h 56mUnited Airlines
Fri 1/1610:20 pmIAD - SIN
1 stop44h 40mUnited Airlines
Deal found 12/11$1,257
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/1910:10 amSIN - DCA
2 stops24h 42mUnited Airlines
Fri 1/165:59 pmDCA - SIN
1 stop37h 16mUnited Airlines
Deal found 12/11$1,257
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sun 12/1410:20 pmSIN - IAD
2 stops35h 22mUnited Airlines
Tue 12/168:20 amIAD - SIN
2 stops33h 35mUnited Airlines
Deal found 12/11$1,296
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sun 12/1410:20 pmSIN - DCA
2 stops33h 23mUnited Airlines
Tue 12/168:30 amDCA - SIN
2 stops33h 25mUnited Airlines
Deal found 12/11$1,296
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/2510:10 amSIN - IAD
2 stops25h 56mUnited Airlines
Sun 12/286:37 pmIAD - SIN
1 stop36h 38mUnited Airlines
Deal found 12/11$1,362
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/1910:10 amSIN - IAD
2 stops25h 56mUnited Airlines
Tue 12/3010:05 pmIAD - SIN
1 stop33h 10mUnited Airlines
Deal found 12/11$1,365
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/1910:10 amSIN - DCA
2 stops24h 42mUnited Airlines
Tue 12/307:00 amDCA - SIN
1 stop36h 00mUnited Airlines
Deal found 12/11$1,365
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sat 12/1310:20 pmSIN - IAD
2 stops35h 23mUnited Airlines
Tue 12/168:20 amIAD - SIN
2 stops33h 35mUnited Airlines
Deal found 12/11$1,373
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Sat 12/1310:20 pmSIN - DCA
2 stops28h 32mUnited Airlines
Tue 12/168:30 amDCA - SIN
2 stops33h 25mUnited Airlines
Deal found 12/11$1,373
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/1910:10 amSIN - BWI
1 stop32h 04mUnited Airlines
Fri 1/166:34 pmBWI - SIN
1 stop36h 41mUnited Airlines
Deal found 12/11$1,387
This Gotogate deal was found by Cheapflights users on 12/11. 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.
Fri 12/1910:15 amSIN - IAD
1 stop42h 40mMultiple Airlines
Fri 1/162:35 pmIAD - SIN
1 stop30h 00mMultiple Airlines
Deal found 12/11$1,403
This Mytrip deal was found by Cheapflights users on 12/11. 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.
Fri 12/197:40 pmSIN - IAD
2 stops36h 40mMultiple Airlines
Tue 12/302:35 pmIAD - SIN
3 stops29h 55mMultiple Airlines
Deal found 12/11$1,482

Find flight deals from Singapore to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to Washington, D.C. (WAS). 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 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$927
(lastminute.com)

One-way from

$542
(Air China)

Popular in

February

Cheapest in

September

Average price

$1,518
Provider with most accurate pricing for Singapore Changi-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Singapore Changi-Washington, D.C. (WAS) flights.
Search Deals
From Singapore Changi to Washington, D.C. (WAS)
Search Deals
One-way flight from Singapore Changi to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($344 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($122 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 Washington, D.C. 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 12, 2025.
Use the filters below to find and compare flights from Singapore to Washington, D.C. that are best for you.

Fly from

Singapore

Fly to

Washington, D.C.

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 1/23

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 2/5

2:35 pm-9:35 am

1 stop30h 00m

$939

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

$962

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

$963

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

$982

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 1/23

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Mon 1/26

2:35 pm-9:35 am

1 stop30h 00m

$988

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Thu 1/29

8:50 am-10:23 am

2 stops38h 33m

Washington, D.C. Reagan-National

Thu 2/5

6:59 am-12:55 am

2 stops28h 56m

$1,002

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 3/12

7:25 pm-10:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Sat 3/21

3:35 pm-9:35 am

1 stop30h 00m

$1,013

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Thu 2/12

8:50 am-12:19 pm

2 stops40h 29m

Washington, D.C. Reagan-National

Sun 2/15

8:40 pm-6:55 am

2 stops45h 15m

$1,021

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 3/13

7:25 pm-10:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Fri 3/20

3:35 pm-9:35 am

1 stop30h 00m

$1,043

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 1/23

9:30 am-6:30 pm

1 stop22h 00m

Washington, D.C. Dulles Intl

Thu 2/5

9:15 pm-10:15 am

2 stops48h 00m

$1,065

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 48 results
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Compare providers for flights from Singapore to Washington, D.C.

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 Washington, D.C. in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 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. 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. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Singapore-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Singapore-Washington, D.C. 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. 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 Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

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

Currently, March is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $819). Flying from Singapore to Washington, D.C. 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.?

Related info for your journey

Find useful and relevant information for your journey from Singapore to Washington, D.C.. 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.?

    If you book a flight to Washington, D.C. 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. per day from 0 different airlines.

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

    Departing from Singapore to Washington, D.C. will take you 26h 10m. Airlines will cover a distance of 9629 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airline one-way is SAUDIA, with whom users have recently found tickets for as low as $401. However, be on the lookout for offers from Air China and Korean Air, as they are both options that can get you from Singapore to Washington, D.C. for a low price.

  • What are the most popular routes from Singapore to Washington, D.C.?

    The most popular flight routes from Singapore to Washington, D.C. are Singapore Changi - Washington, D.C. Dulles Intl, Singapore Changi - Baltimore/Washington and Singapore Changi - Washington, D.C. Reagan-National.

  • Can I find deals for flights from Singapore to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Singapore to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Singapore to Washington, D.C.?

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

  • Can I find deals for business class flights from Singapore to Washington, D.C.?

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

    Currently, March is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $819). Flying from Singapore to Washington, D.C. 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.?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Singapore to Washington, D.C.

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

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