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Cheap flights from Washington, D.C. to Singapore from S$ 507

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 21-2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
20 Feb — 27 Feb1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

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

Wed 4-214:35
IAD
-
SIN
1 stop30h 00m
Etihad Airways
Wed 18-219:25
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 19-1S$ 1,099
Thu 19-214:35
IAD
-
SIN
1 stop30h 00m
Etihad Airways
Thu 26-219:25
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 20-1S$ 1,108
Thu 5-314:35
IAD
-
SIN
1 stop30h 00m
Etihad Airways
Thu 12-319:25
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 19-1S$ 1,113
Tue 3-314:35
IAD
-
SIN
1 stop30h 00m
Etihad Airways
Thu 12-319:25
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 19-1S$ 1,121
Tue 10-214:35
IAD
-
SIN
1 stop30h 00m
Etihad Airways
Wed 11-319:25
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 19-1S$ 1,123
Thu 7-515:35
IAD
-
SIN
1 stop30h 05m
Etihad Airways
Wed 10-621:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 19-1S$ 1,130
Sun 12-413:20
IAD
-
SIN
1 stop40h 35m
Turkish Airlines
Tue 5-510:25
SIN
-
IAD
1 stop37h 10m
Turkish Airlines
Deal found 19-1S$ 1,131
Wed 4-314:35
IAD
-
SIN
1 stop30h 00m
Etihad Airways
Wed 11-319:25
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 20-1S$ 1,136
Sat 7-218:10
IAD
-
SIN
1 stop32h 20m
SAUDIA
Fri 20-202:30
SIN
-
IAD
1 stop25h 15m
SAUDIA
Deal found 18-1S$ 1,140
Mon 26-121:15
IAD
-
SIN
1 stop23h 45m
Turkish Airlines
Wed 4-223:25
SIN
-
IAD
1 stop32h 55m
Turkish Airlines
Deal found 18-1S$ 1,145
Thu 23-415:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Sat 2-521:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 19-1S$ 1,146
Tue 7-420:59
DCA
-
SIN
2 stops26h 46m
Cathay Pacific
Tue 21-401:50
SIN
-
DCA
2 stops33h 09m
Cathay Pacific
Deal found 19-1S$ 1,310

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

Keep the following information in mind while searching for Washington, D.C. to Singapore flight deals. Data was last updated 21 January 2026.

Round-trip from

S$ 1,099

One-way from

S$ 507

Popular in

December

Cheapest in

August

Average price

S$ 1,443
Etihad Airways
  • Etihad Airways
  • 4-2-18-2
  • 2 total stops
  • 56h 40m total
  • Washington, D.C. to Singapore
Search Deals
IndiGo
  • IndiGo
  • 21-2
  • 2 total stops
  • 48h 00m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (S$ 412 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 119 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Singapore 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 21 January 2026.
Use the filters below to find and compare flights from Washington, D.C. to Singapore that are best for you.

Fly from

Washington, D.C.

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 7-5

15:35-09:40

1 stop30h 05m

Singapore Changi

Wed 10-6

21:00-09:45

1 stop24h 45m

S$ 1,130

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 18-2

21:15-17:35

1 stop31h 20m

Singapore Changi

Wed 16-9

23:05-11:35

1 stop24h 30m

S$ 1,226

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 7-2

18:10-15:30

1 stop32h 20m

Singapore Changi

Mon 9-2

02:30-14:45

1 stop25h 15m

S$ 1,270

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 22-3

14:30-08:35

1 stop30h 05m

Singapore Changi

Thu 26-3

10:15-20:20

1 stop46h 05m

S$ 1,275

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 4-2

14:35-09:35

1 stop30h 00m

Singapore Changi

Wed 18-2

17:10-09:05

2 stops28h 55m

S$ 1,321

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 5-3

14:35-09:35

1 stop30h 00m

Singapore Changi

Thu 12-3

17:10-10:05

2 stops28h 55m

S$ 1,321

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 4-3

14:35-09:35

1 stop30h 00m

Singapore Changi

Wed 11-3

17:10-10:05

2 stops28h 55m

S$ 1,325

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 25-3

14:30-10:00

1 stop31h 30m

Singapore Changi

Mon 6-4

11:10-11:35

1 stop36h 25m

S$ 1,339

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 18-2

17:00-17:45

1 stop35h 45m

Singapore Changi

Wed 25-2

20:45-20:05

1 stop36h 20m

S$ 1,361

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 3-3

14:35-09:35

1 stop30h 00m

Singapore Changi

Thu 12-3

17:10-10:05

2 stops28h 55m

S$ 1,371

Flights are sorted by cheapest return flights first.

Deals found on 21-1

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Singapore

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

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 1,069). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,466). 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.

Related info for your journey

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

    A quick flight from Washington, D.C. to Singapore can take about 30h 05m. Etihad Airways provides one of the quickest options available for as low as S$ 1,130. Airlines will cover a distance of 15521 km. This flight may include one or multiple stops.

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

    Most travellers choose Washington, D.C. Dulles Intl - Singapore Changi, Washington, D.C. Reagan-National - Singapore Changi or Baltimore/Washington - Singapore Changi when deciding on the best route from Washington, D.C. to Singapore.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 1,069). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,466). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Singapore

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

Top 2 airlines flying from Washington, D.C. to Singapore

Discover the top 2 airlines that operate flights from Washington, D.C. to Singapore. 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 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,361AverageS$ 2,219FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
JetBlueCheapestS$ 1,377AverageS$ 2,530FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington, D.C. to Singapore?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to Singapore. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Singapore?

Cheapflights simply makes it quick and affordable to book flights from Washington, D.C. to Singapore by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Washington, D.C. to Singapore with no change fees?

Yes, we can. To see specific flights from Washington, D.C. to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Singapore become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Singapore from Washington, D.C. today and book when prices fit your budget.

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