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Cheap flights from Washington, D.C. to Singapore from S$ 547

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 1-3. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 5 November 2025.

Round-trip from

S$ 1,331

One-way from

S$ 547

Popular in

December

Cheapest in

August

Average price

S$ 1,599
Singapore Airlines
  • Singapore Airlines
  • 18-2-24-2
  • 2 total stops
  • 66h 58m total
  • Washington, D.C. to Singapore
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IndiGo
  • IndiGo
  • 1-3
  • 2 total stops
  • 31h 05m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (S$ 355 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (S$ 108 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find 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 5 November 2025.

Tue 11-1117:59DCA - SIN
1 stop25h 01mUnited Airlines
Tue 25-1122:20SIN - DCA
2 stops26h 09mUnited Airlines
Deal found 2-11S$ 1,468
Thu 13-1116:10IAD - SIN
1 stop26h 50mUnited Airlines
Thu 20-1122:20SIN - IAD
1 stop22h 10mUnited Airlines
Deal found 2-11S$ 1,468
Mon 1-1221:15IAD - SIN
2 stops48h 00mIndiGo
Fri 19-1211:15SIN - IAD
2 stops45h 05mIndiGo
Deal found 3-11S$ 1,469
Fri 14-1110:40IAD - SIN
1 stop21h 35mQatar Airways
Sun 16-1120:15SIN - IAD
1 stop32h 40mQatar Airways
Deal found 4-11S$ 1,472
Tue 2-1211:00DCA - SIN
2 stops32h 00mUnited Airlines
Wed 17-1210:10SIN - DCA
1 stop24h 26mUnited Airlines
Deal found 3-11S$ 1,475
Tue 2-1206:30IAD - SIN
1 stop24h 45mUnited Airlines
Tue 9-1210:10SIN - IAD
2 stops24h 08mUnited Airlines
Deal found 3-11S$ 1,475
Sat 8-1121:15IAD - SIN
2 stops31h 05mIndiGo
Sat 22-1111:15SIN - IAD
2 stops45h 05mIndiGo
Deal found 3-11S$ 1,481
Thu 27-1121:10IAD - SIN
1 stop23h 25mMultiple Airlines
Mon 1-1220:25SIN - IAD
2 stops35h 05mMultiple Airlines
Deal found 4-11S$ 1,483
Mon 1-1220:05IAD - SIN
1 stop23h 40mQatar Airways
Wed 17-1217:25SIN - IAD
2 stops35h 30mQatar Airways
Deal found 4-11S$ 1,499
Wed 5-1113:30IAD - SIN
1 stop31h 30mMultiple Airlines
Sun 9-1121:15SIN - IAD
2 stops31h 15mMultiple Airlines
Deal found 4-11S$ 1,502
Wed 12-1110:40IAD - SIN
2 stops38h 40mQatar Airways
Mon 24-1103:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 2-11S$ 1,503
Wed 3-1221:15IAD - SIN
2 stops31h 05mIndiGo
Wed 10-1211:15SIN - IAD
2 stops45h 05mIndiGo
Deal found 4-11S$ 1,514

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 5 November 2025.
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

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9-3

16:07-20:15

2 stops40h 08m

Singapore Changi

Thu 12-3

22:20-13:07

2 stops26h 47m

S$ 1,475

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 25-3

13:00-08:00

2 stops31h 00m

Singapore Changi

Mon 6-4

09:00-22:16

2 stops25h 16m

S$ 1,475

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 2-12

15:30-08:00

2 stops27h 30m

Singapore Changi

Wed 17-12

10:10-20:55

2 stops23h 45m

S$ 1,475

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 26-3

06:00-08:00

2 stops38h 00m

Singapore Changi

Wed 8-4

09:00-21:53

1 stop24h 53m

S$ 1,475

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 23-3

07:00-20:15

1 stop25h 15m

Singapore Changi

Wed 8-4

09:00-20:43

2 stops23h 43m

S$ 1,475

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 1-12

12:35-08:00

1 stop30h 25m

Singapore Changi

Mon 8-12

10:10-21:18

2 stops24h 08m

S$ 1,475

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 25-3

13:02-08:00

2 stops30h 58m

Singapore Changi

Thu 9-4

09:00-19:07

1 stop22h 07m

S$ 1,475

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 26-3

06:25-20:15

1 stop25h 50m

Singapore Changi

Wed 8-4

09:00-23:57

2 stops26h 57m

S$ 1,475

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 23-3

18:03-08:00

1 stop25h 57m

Singapore Changi

Mon 6-4

09:00-23:57

2 stops26h 57m

S$ 1,475

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 2-12

16:10-08:00

1 stop26h 50m

Singapore Changi

Wed 17-12

10:10-21:24

2 stops24h 14m

S$ 1,475

Flights are sorted by cheapest return flights first.

Deals found on 4-11

Showing 1-10 of 56 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 1,027). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,496). 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 40h 08m. United Airlines provides one of the quickest options available for as low as S$ 1,475. Airlines will cover a distance of 15532 km.

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

    For one-way options, check prices for Etihad Airways. According to our data, you can fly for as low as S$ 607. Users have also found prices from S$ 827 and S$ 833 on United Airlines and Singapore Airlines, respectively.

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

    Most travellers choose Washington, D.C. Dulles Intl - Singapore Changi, Baltimore/Washington - Singapore Changi or Washington, D.C. Reagan-National - 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 1,027). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,496). 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 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 airline flying from Washington, D.C. to Singapore

Discover the top airline 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 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,385AverageS$ 2,257FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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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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