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Cheap flights from Washington, D.C. to Singapore from S$ 592

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 28-2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
14 Dec — 21 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 14 November 2025.

Round-trip from

S$ 1,310

One-way from

S$ 592

Popular in

December

Cheapest in

August

Average price

S$ 1,630
Singapore Airlines
  • Singapore Airlines
  • 16-2-22-2
  • 2 total stops
  • 56h 48m total
  • Washington, D.C. to Singapore
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IndiGo
  • IndiGo
  • 28-2
  • 2 total stops
  • 38h 50m 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).
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Cheapest flight prices on average. 6% potential price decrease (S$ 128 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 14 November 2025.

Mon 17-1114:25IAD - SIN
2 stops28h 35mLufthansa
Wed 3-1210:10SIN - IAD
2 stops24h 08mLufthansa
Deal found 12-11S$ 1,511
Fri 5-1213:30IAD - SIN
1 stop30h 15mTurkish Airlines
Mon 22-1211:40SIN - IAD
1 stop37h 05mTurkish Airlines
Deal found 12-11S$ 1,513
Mon 1-1213:30IAD - SIN
2 stops31h 45mMultiple Airlines
Tue 23-1219:25SIN - IAD
1 stop26h 40mMultiple Airlines
Deal found 12-11S$ 1,522
Mon 1-1211:10IAD - SIN
1 stop30h 45mANA
Wed 17-1222:20SIN - IAD
2 stops26h 25mANA
Deal found 12-11S$ 1,523
Sat 6-1213:30IAD - SIN
1 stop31h 30mTurkish Airlines
Sat 20-1223:25SIN - IAD
1 stop25h 20mTurkish Airlines
Deal found 13-11S$ 1,526
Thu 4-1217:59DCA - SIN
1 stop25h 01mUnited Airlines
Fri 12-1210:10SIN - DCA
1 stop24h 26mUnited Airlines
Deal found 12-11S$ 1,527
Sun 7-1222:10IAD - SIN
1 stop33h 05mUnited Airlines
Sat 20-1222:20SIN - IAD
1 stop21h 27mUnited Airlines
Deal found 13-11S$ 1,527
Tue 9-1212:00DCA - SIN
2 stops31h 00mUnited Airlines
Sat 13-1222:20SIN - DCA
2 stops24h 33mUnited Airlines
Deal found 12-11S$ 1,533
Thu 4-1215:23IAD - SIN
2 stops27h 37mUnited Airlines
Sun 21-1210:10SIN - IAD
2 stops24h 05mUnited Airlines
Deal found 12-11S$ 1,533
Tue 2-1209:45IAD - SIN
3 stops32h 15mMultiple Airlines
Tue 9-1216:35SIN - IAD
3 stops35h 55mMultiple Airlines
Deal found 12-11S$ 1,540
Tue 2-1211:10IAD - SIN
1 stop30h 45mANA
Sun 21-1206:35SIN - IAD
2 stops42h 10mANA
Deal found 12-11S$ 1,541
Sat 29-1113:30IAD - SIN
1 stop39h 05mMultiple Airlines
Sun 14-1221:15SIN - IAD
2 stops31h 15mMultiple Airlines
Deal found 13-11S$ 1,545

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 14 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

Thu 29-1

14:35-11:30

2 stops31h 55m

Singapore Changi

Thu 5-2

17:10-09:05

2 stops28h 55m

S$ 1,497

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 26-3

15:35-09:35

1 stop30h 00m

Singapore Changi

Sun 5-4

17:00-09:45

2 stops28h 45m

S$ 1,513

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 18-1

17:59-08:00

1 stop25h 01m

Singapore Changi

Thu 22-1

22:20-11:29

2 stops26h 09m

S$ 1,527

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 21-1

17:59-08:00

1 stop25h 01m

Singapore Changi

Sat 24-1

22:20-11:29

2 stops26h 09m

S$ 1,527

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 17-1

14:00-08:00

2 stops29h 00m

Singapore Changi

Thu 22-1

10:10-21:52

1 stop24h 42m

S$ 1,527

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Fri 5-12

17:59-08:00

1 stop25h 01m

Singapore Changi

Mon 22-12

10:10-21:43

1 stop24h 33m

S$ 1,527

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 9-1

22:32-20:15

2 stops32h 43m

Singapore Changi

Wed 14-1

10:10-19:35

1 stop22h 25m

S$ 1,533

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 4-12

10:07-08:00

2 stops32h 53m

Singapore Changi

Sun 21-12

22:20-11:28

2 stops26h 08m

S$ 1,533

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 2-12

18:28-08:00

1 stop24h 32m

Singapore Changi

Tue 9-12

22:20-17:16

1 stop31h 56m

S$ 1,592

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 8-5

06:30-18:25

1 stop23h 55m

Singapore Changi

Fri 15-5

09:00-23:13

2 stops26h 13m

S$ 1,599

Flights are sorted by cheapest return flights first.

Deals found on 10-11

Showing 1-10 of 55 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$ 1,063). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,485). 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 25h 01m. United Airlines provides one of the quickest options available for as low as S$ 1,527. 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$ 627. Users have also found prices from S$ 708 and S$ 713 on Cathay Pacific and Turkish 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$ 1,063). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,485). 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,379AverageS$ 2,248FlexibilityNo 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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