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Cheap flights from Washington, D.C. to Singapore from S$ 526

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 4-11. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
14 Nov — 21 Nov1
1 adult
1 adult, Economy

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 15 October 2025.

Round-trip from

S$ 1,336

One-way from

S$ 526

Popular in

December

Cheapest in

August

Average price

S$ 1,264
19-2-23-2
  • 19-2-23-2
  • 5 total stops
  • 78h 04m total
  • Washington, D.C. to Singapore
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4-11
  • 4-11
  • 3 total stops
  • 54h 00m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (S$ 343 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (S$ 104 potential savings vs. average return price).
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Average for round-trip flights in October 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 15 October 2025.

Sun 9-1118:10IAD - SIN
3 stops34h 10mMultiple Airlines
Sun 16-1117:10SIN - IAD
3 stops35h 20mMultiple Airlines
Deal found 13-10S$ 1,436
Sun 9-1113:30IAD - SIN
2 stops38h 50mMultiple Airlines
Sat 15-1116:35SIN - IAD
3 stops35h 55mMultiple Airlines
Deal found 14-10S$ 1,437
Sat 6-1221:15IAD - SIN
1 stop22h 30mTurkish Airlines
Sat 20-1210:25SIN - IAD
1 stop38h 20mTurkish Airlines
Deal found 14-10S$ 1,440
Thu 30-1021:05IAD - SIN
1 stop23h 40mQatar Airways
Thu 13-1103:15SIN - IAD
1 stop25h 40mQatar Airways
Deal found 14-10S$ 1,441
Wed 29-1021:05IAD - SIN
1 stop23h 40mMultiple Airlines
Mon 17-1113:35SIN - IAD
2 stops38h 55mMultiple Airlines
Deal found 12-10S$ 1,442
Sun 2-1110:40IAD - SIN
1 stop21h 35mMultiple Airlines
Thu 13-1113:35SIN - IAD
2 stops38h 55mMultiple Airlines
Deal found 12-10S$ 1,443
Mon 17-1120:05IAD - SIN
1 stop29h 50mQatar Airways
Wed 3-1219:30SIN - IAD
2 stops33h 25mQatar Airways
Deal found 13-10S$ 1,445
Wed 29-1021:05IAD - SIN
1 stop23h 40mMultiple Airlines
Fri 14-1108:45SIN - IAD
2 stops43h 45mMultiple Airlines
Deal found 12-10S$ 1,446
Thu 16-1021:00IAD - SIN
1 stop24h 00mQatar Airways
Tue 21-1003:10SIN - IAD
1 stop24h 30mQatar Airways
Deal found 13-10S$ 1,447
Mon 17-1120:05IAD - SIN
1 stop29h 50mQatar Airways
Thu 27-1106:00SIN - IAD
2 stops39h 20mQatar Airways
Deal found 13-10S$ 1,449
Thu 27-1117:59DCA - SIN
1 stop25h 01mUnited Airlines
Thu 4-1210:10SIN - DCA
1 stop24h 26mUnited Airlines
Deal found 13-10S$ 1,450
Thu 27-1118:03IAD - SIN
1 stop24h 57mUnited Airlines
Thu 4-1210:10SIN - IAD
2 stops24h 14mUnited Airlines
Deal found 13-10S$ 1,450

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 15 October 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

Tue 18-11

20:05-14:55

1 stop29h 50m

Singapore Changi

Tue 2-12

19:30-15:55

2 stops33h 25m

S$ 1,445

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 19-11

10:40-21:15

1 stop21h 35m

Singapore Changi

Thu 27-11

06:00-08:20

2 stops39h 20m

S$ 1,449

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 17-11

20:05-08:45

1 stop23h 40m

Singapore Changi

Thu 27-11

06:00-08:20

2 stops39h 20m

S$ 1,449

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 12-11

17:59-08:00

1 stop25h 01m

Singapore Changi

Tue 18-11

10:10-21:43

1 stop24h 33m

S$ 1,462

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 11-11

17:59-08:00

1 stop25h 01m

Singapore Changi

Tue 18-11

22:20-14:55

2 stops29h 35m

S$ 1,462

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

10:10-11:35

2 stops37h 25m

S$ 1,467

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 20-11

06:30-20:15

1 stop24h 45m

Singapore Changi

Thu 27-11

22:20-11:49

2 stops26h 29m

S$ 1,467

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 23-11

22:10-20:15

2 stops33h 05m

Singapore Changi

Tue 2-12

22:20-16:18

2 stops30h 58m

S$ 1,467

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 17-11

15:59-08:00

2 stops27h 01m

Singapore Changi

Tue 2-12

22:20-16:18

2 stops30h 58m

S$ 1,467

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 23-11

22:10-20:15

1 stop33h 05m

Singapore Changi

Thu 27-11

22:20-11:49

2 stops26h 29m

S$ 1,467

Flights are sorted by cheapest return flights first.

Deals found on 13-10

Showing 1-10 of 53 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$ 1,021). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,488). 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. Qatar Airways provides one of the quickest options available for as low as S$ 1,462. 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 Qatar Airways. According to our data, you can fly for as low as S$ 613. Users have also found prices from S$ 621 and S$ 731 on IndiGo 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$ 1,021). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,488). 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 15 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,377AverageS$ 2,245FlexibilityNo 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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