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Cheap flights from Washington, D.C. to Singapore from S$ 549

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
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 December 2025.

Sat 6-1212:35IAD - SIN
1 stop30h 25mUnited Airlines
Sat 20-1210:10SIN - IAD
1 stop27h 57mUnited Airlines
Deal found 3-12S$ 1,587
Fri 5-1213:10IAD - SIN
2 stops28h 45mMultiple Airlines
Mon 8-1219:40SIN - IAD
2 stops36h 40mMultiple Airlines
Deal found 3-12S$ 1,768
Fri 5-1213:10BWI - SIN
2 stops29h 50mUnited Airlines
Mon 8-1222:20SIN - BWI
1 stop21h 59mUnited Airlines
Deal found 3-12S$ 1,781
Sun 7-1210:40IAD - SIN
1 stop21h 35mQatar Airways
Sat 20-1221:20SIN - IAD
2 stops31h 35mQatar Airways
Deal found 4-12S$ 1,784
Mon 29-1208:20IAD - SIN
2 stops34h 40mUnited Airlines
Sat 28-222:20SIN - IAD
1 stop21h 47mUnited Airlines
Deal found 4-12S$ 1,797
Sun 7-1218:28BWI - SIN
1 stop24h 32mUnited Airlines
Tue 9-1222:20SIN - BWI
1 stop31h 56mUnited Airlines
Deal found 3-12S$ 1,884
Sat 6-1217:30IAD - SIN
3 stops33h 05mMultiple Airlines
Mon 8-1220:15SIN - IAD
2 stops35h 15mMultiple Airlines
Deal found 3-12S$ 1,892
Thu 11-1208:30IAD - SIN
2 stops34h 30mUnited Airlines
Fri 19-1210:10SIN - IAD
2 stops26h 13mUnited Airlines
Deal found 2-12S$ 1,916
Mon 29-1218:10IAD - SIN
3 stops31h 15mMultiple Airlines
Sat 28-222:30SIN - IAD
2 stops30h 25mMultiple Airlines
Deal found 4-12S$ 1,926
Sun 7-1217:59DCA - SIN
1 stop25h 01mUnited Airlines
Tue 9-1222:20SIN - DCA
2 stops25h 09mUnited Airlines
Deal found 3-12S$ 1,936
Tue 23-1222:10IAD - SIN
2 stops33h 05mUnited Airlines
Mon 29-1210:10SIN - IAD
1 stop27h 57mUnited Airlines
Deal found 4-12S$ 1,976
Fri 12-1206:30IAD - SIN
1 stop24h 45mUnited Airlines
Sat 20-1222:20SIN - IAD
2 stops31h 04mUnited Airlines
Deal found 3-12S$ 1,981

Find 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 December 2025.

Round-trip from

S$ 1,318

One-way from

S$ 549

Popular in

December

Cheapest in

August

Average price

S$ 2,648
Singapore Airlines
  • Singapore Airlines
  • 16-2-4-3
  • 2 total stops
  • 67h 37m total
  • Washington, D.C. to Singapore
Search Deals
28-2
  • 28-2
  • 2 total stops
  • 49h 49m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (S$ 433 potential increase over avg. return price).
Search Deals
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 December 2025
Search Deals

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 December 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

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Fri 20-2

18:46-17:45

1 stop33h 59m

Singapore Changi

Wed 18-3

19:00-17:23

1 stop34h 23m

S$ 1,473

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Mon 13-4

18:18-00:55

2 stops42h 37m

Singapore Changi

Thu 23-4

09:00-05:22

1 stop32h 22m

S$ 1,507

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 7-3

17:25-05:00

2 stops46h 35m

Singapore Changi

Tue 7-4

07:30-23:49

2 stops28h 19m

S$ 1,546

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 17-1

09:45-20:10

2 stops45h 25m

Singapore Changi

Wed 28-1

14:05-23:00

2 stops45h 55m

S$ 1,566

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$ 1,570

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Wed 21-1

18:34-08:00

1 stop24h 26m

Singapore Changi

Wed 25-2

22:20-17:20

1 stop32h 00m

S$ 1,587

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 17-1

17:59-08:00

1 stop25h 01m

Singapore Changi

Sat 24-1

22:20-11:29

2 stops26h 09m

S$ 1,587

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Wed 4-3

16:09-08:00

2 stops26h 51m

Singapore Changi

Wed 25-3

22:20-21:42

3 stops35h 22m

S$ 1,592

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 14-5

22:06-18:25

2 stops32h 19m

Singapore Changi

Sat 30-5

20:40-13:48

2 stops29h 08m

S$ 1,592

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 14-5

22:06-18:25

2 stops32h 19m

Singapore Changi

Sun 31-5

20:40-07:35

3 stops46h 55m

S$ 1,592

Flights are sorted by cheapest return flights first.

Deals found on 3-12

Showing 1-10 of 60 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$ 1,058). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,482). 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 33h 59m. Singapore Airlines provides one of the quickest options available for as low as S$ 1,481. Airlines will cover a distance of 15496 km. This flight may include one or multiple stops.

  • 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$ 1,058). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,482). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 2 airlines flying from Washington, D.C. to Singapore

Discover the top 2 airlines 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 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,373AverageS$ 2,239FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
JetBlueCheapestS$ 1,390AverageS$ 2,554FlexibilityNo cancel feeOn-time62%
Search JetBlue 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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