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Cheap flights from Washington, D.C. to Singapore from S$ 630

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 3-2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
21 Dec — 28 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 21 November 2025.

Round-trip from

S$ 1,158

One-way from

S$ 695

Popular in

December

Cheapest in

August

Average price

S$ 1,638
Singapore Airlines
  • Singapore Airlines
  • 26-1-5-2
  • 2 total stops
  • 55h 45m total
  • Washington, D.C. to Singapore
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12-3
  • 12-3
  • 2 total stops
  • 34h 12m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (S$ 438 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 130 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 21 November 2025.

Sun 30-1110:40IAD - SIN
1 stop21h 35mQatar Airways
Sun 7-1203:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 19-11S$ 1,505
Sat 29-1113:30IAD - SIN
1 stop39h 05mMultiple Airlines
Sun 7-1211:15SIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 19-11S$ 1,513
Wed 3-1213:30IAD - SIN
1 stop30h 15mMultiple Airlines
Thu 11-1211:15SIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 19-11S$ 1,515
Tue 9-1212:20IAD - SIN
1 stop40h 15mANA
Wed 17-1210:45SIN - IAD
1 stop35h 25mANA
Deal found 19-11S$ 1,516
Sat 6-1213:30IAD - SIN
1 stop31h 30mTurkish Airlines
Sun 14-1223:25SIN - IAD
1 stop32h 55mTurkish Airlines
Deal found 19-11S$ 1,524
Sun 7-1222:10IAD - SIN
1 stop33h 05mUnited Airlines
Sat 20-1210:10SIN - IAD
1 stop27h 57mUnited Airlines
Deal found 20-11S$ 1,535
Sun 7-1209:45IAD - SIN
2 stops26h 10mAir Canada
Sat 20-1208:50SIN - IAD
2 stops24h 36mAir Canada
Deal found 19-11S$ 1,539
Thu 4-1213:30IAD - SIN
1 stop30h 15mMultiple Airlines
Wed 17-1211:15SIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 18-11S$ 1,540
Thu 27-1114:30IAD - SIN
1 stop28h 30mUnited Airlines
Fri 5-1210:10SIN - IAD
2 stops24h 14mUnited Airlines
Deal found 19-11S$ 1,541
Wed 3-1213:30IAD - SIN
1 stop39h 05mMultiple Airlines
Wed 17-1200:40SIN - IAD
2 stops33h 19mMultiple Airlines
Deal found 19-11S$ 1,545
Fri 28-1110:40IAD - SIN
1 stop21h 35mQatar Airways
Sat 6-1210:15SIN - IAD
1 stop35h 05mQatar Airways
Deal found 20-11S$ 1,582
Mon 1-1209:00BWI - SIN
1 stop34h 00mUnited Airlines
Wed 10-1222:20SIN - BWI
1 stop21h 59mUnited Airlines
Deal found 20-11S$ 1,600

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 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

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 4-4

18:50-21:45

2 stops62h 55m

Singapore Changi

Sun 12-4

09:35-15:45

2 stops66h 10m

S$ 1,492

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 19-2

18:10-21:55

2 stops38h 45m

Singapore Changi

Fri 27-2

09:35-14:45

2 stops42h 10m

S$ 1,492

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 1-2

18:10-21:55

2 stops62h 45m

Singapore Changi

Mon 9-2

09:35-14:45

2 stops42h 10m

S$ 1,492

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 29-1

15:24-06:35

2 stops26h 11m

Singapore Changi

Sun 1-2

02:20-18:44

2 stops29h 24m

S$ 1,514

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 16-2

17:52-20:10

2 stops37h 18m

Singapore Changi

Mon 23-2

01:25-22:51

2 stops34h 26m

S$ 1,519

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 11-2

20:05-14:55

1 stop29h 50m

Singapore Changi

Mon 16-2

03:15-15:55

1 stop25h 40m

S$ 1,520

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 29-3

15:35-09:15

1 stop29h 40m

Singapore Changi

Sun 19-4

17:00-09:45

2 stops28h 45m

S$ 1,532

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Fri 9-1

17:59-08:00

1 stop25h 01m

Singapore Changi

Mon 16-2

10:10-21:39

1 stop24h 29m

S$ 1,535

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 31-1

17:59-08:00

1 stop25h 01m

Singapore Changi

Mon 16-2

22:20-11:35

2 stops26h 15m

S$ 1,536

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 9-5

22:05-18:25

2 stops32h 20m

Singapore Changi

Mon 25-5

08:45-23:57

2 stops27h 12m

S$ 1,541

Flights are sorted by cheapest return flights first.

Deals found on 19-11

Showing 1-10 of 58 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$ 1,068). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,494). 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 26h 11m. SAUDIA provides one of the quickest options available for as low as S$ 1,514. Airlines will cover a distance of 15532 km. This flight may include one or multiple stops.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as S$ 766. Users have also found prices from S$ 811 and S$ 828 on Singapore Airlines and United 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$ 1,068). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,494). 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 21 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,386AverageS$ 2,259FlexibilityNo 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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