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Cheap flights from Washington, D.C. to Singapore from S$ 531

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 3-3. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
11 Dec — 18 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 11 November 2025.

Round-trip from

S$ 1,222

One-way from

S$ 531

Popular in

December

Cheapest in

August

Average price

S$ 1,632
Singapore Airlines
  • Singapore Airlines
  • 2-2-7-2
  • 2 total stops
  • 55h 45m total
  • Washington, D.C. to Singapore
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3-3
  • 3-3
  • 3 total stops
  • 52h 25m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (S$ 431 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 129 potential savings vs. average return price).
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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 11 November 2025.

Mon 17-1116:17DCA - SIN
2 stops38h 58mLufthansa
Wed 3-1210:10SIN - DCA
2 stops23h 45mLufthansa
Deal found 10-11S$ 1,506
Thu 4-1213:30IAD - SIN
1 stop39h 05mMultiple Airlines
Sun 21-1211:15SIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 10-11S$ 1,515
Mon 17-1113:30IAD - SIN
1 stop30h 15mMultiple Airlines
Wed 3-1216:35SIN - IAD
3 stops35h 55mMultiple Airlines
Deal found 9-11S$ 1,517
Wed 12-1114:00DCA - SIN
2 stops29h 00mUnited Airlines
Fri 21-1122:20SIN - DCA
2 stops24h 09mUnited Airlines
Deal found 10-11S$ 1,525
Mon 1-1211:10IAD - SIN
1 stop30h 45mANA
Wed 17-1222:20SIN - IAD
2 stops26h 25mANA
Deal found 9-11S$ 1,525
Tue 18-1113:30IAD - SIN
1 stop30h 15mMultiple Airlines
Wed 26-1118:35SIN - IAD
3 stops33h 55mMultiple Airlines
Deal found 10-11S$ 1,528
Thu 13-1117:59DCA - SIN
1 stop25h 01mUnited Airlines
Sun 23-1110:10SIN - DCA
1 stop24h 33mUnited Airlines
Deal found 9-11S$ 1,529
Thu 20-1106:30IAD - SIN
1 stop24h 45mUnited Airlines
Sun 7-1222:20SIN - IAD
1 stop21h 35mUnited Airlines
Deal found 10-11S$ 1,529
Mon 17-1118:10IAD - SIN
3 stops30h 10mMultiple Airlines
Tue 25-1117:10SIN - IAD
3 stops35h 20mMultiple Airlines
Deal found 9-11S$ 1,533
Thu 4-1210:07IAD - SIN
2 stops32h 53mUnited Airlines
Sun 21-1222:20SIN - IAD
2 stops26h 08mUnited Airlines
Deal found 10-11S$ 1,535
Sun 7-1213:30IAD - SIN
1 stop30h 15mMultiple Airlines
Sun 14-1218:35SIN - IAD
3 stops33h 55mMultiple Airlines
Deal found 9-11S$ 1,537
Fri 5-1213:30IAD - SIN
1 stop30h 15mTurkish Airlines
Sat 20-1210:25SIN - IAD
1 stop45h 55mTurkish Airlines
Deal found 8-11S$ 1,538

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 11 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

12:00-06:55

2 stops30h 55m

Singapore Changi

Thu 12-3

22:20-11:59

2 stops25h 39m

S$ 1,482

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 15-1

07:00-00:55

2 stops28h 55m

Singapore Changi

Thu 22-1

10:10-20:59

2 stops23h 49m

S$ 1,486

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 29-3

11:05-07:05

2 stops32h 00m

Singapore Changi

Sun 19-4

09:10-10:19

2 stops37h 09m

S$ 1,515

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 18-1

09:59-13:05

2 stops38h 06m

Singapore Changi

Tue 20-1

02:00-20:00

2 stops55h 00m

S$ 1,522

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 17-1

17:59-08:00

1 stop25h 01m

Singapore Changi

Thu 22-1

10:10-21:52

1 stop24h 42m

S$ 1,529

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 8-3

21:05-08:45

1 stop23h 40m

Singapore Changi

Wed 11-3

03:15-16:55

1 stop25h 40m

S$ 1,550

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 17-1

17:01-13:05

2 stops31h 04m

Singapore Changi

Wed 21-1

02:00-20:00

2 stops55h 00m

S$ 1,556

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 21-1

06:59-00:50

2 stops28h 51m

Singapore Changi

Sat 24-1

08:15-22:47

2 stops27h 32m

S$ 1,565

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Thu 8-1

18:34-08:00

1 stop24h 26m

Singapore Changi

Tue 20-1

22:20-17:26

1 stop32h 06m

S$ 1,594

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 31-1

17:26-00:25

2 stops41h 59m

Singapore Changi

Sat 14-2

01:25-22:51

2 stops34h 26m

S$ 1,595

Flights are sorted by cheapest return flights first.

Deals found on 8-11

Showing 1-10 of 59 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$ 1,064). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,487). 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 55m. United Airlines provides one of the quickest options available for as low as S$ 1,482. 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 IndiGo. According to our data, you can fly for as low as S$ 581. Users have also found prices from S$ 604 and S$ 720 on Etihad Airways and Cathay Pacific, 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$ 1,064). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,487). 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 11 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,381AverageS$ 2,251FlexibilityNo 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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