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Cheap flights from Washington, D.C. to Singapore from S$ 507

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 27-1. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
6 Feb — 13 Feb1
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 7 January 2026.

Round-trip from

S$ 1,326

One-way from

S$ 507

Popular in

December

Cheapest in

August

Average price

S$ 1,435
Singapore Airlines
  • Singapore Airlines
  • 4-2-19-2
  • 2 total stops
  • 53h 36m total
  • Washington, D.C. to Singapore
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IndiGo
  • IndiGo
  • 27-1
  • 2 total stops
  • 38h 50m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (S$ 400 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 117 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 7 January 2026.

Wed 4-208:40BWI - SIN
1 stop31h 50mSingapore Airlines
Thu 19-209:00SIN - BWI
1 stop21h 46mSingapore Airlines
Deal found 5-1S$ 1,326
Thu 19-218:46BWI - SIN
1 stop33h 59mSingapore Airlines
Tue 24-220:45SIN - BWI
1 stop33h 08mSingapore Airlines
Deal found 5-1S$ 1,395
Tue 9-609:45IAD - SIN
2 stops31h 30mAir Canada
Tue 23-607:00SIN - IAD
2 stops25h 32mAir Canada
Deal found 6-1S$ 1,413
Thu 23-409:55IAD - SIN
2 stops31h 20mAir Canada
Sun 26-407:00SIN - IAD
2 stops25h 29mAir Canada
Deal found 6-1S$ 1,416
Sun 8-315:35IAD - SIN
1 stop30h 00mMultiple Airlines
Tue 17-308:20SIN - IAD
2 stops37h 45mMultiple Airlines
Deal found 6-1S$ 1,417
Thu 22-114:35IAD - SIN
1 stop30h 00mMultiple Airlines
Thu 29-108:20SIN - IAD
2 stops37h 45mMultiple Airlines
Deal found 6-1S$ 1,418
Mon 9-322:15IAD - SIN
1 stop22h 30mTurkish Airlines
Sat 21-323:25SIN - IAD
1 stop25h 20mTurkish Airlines
Deal found 6-1S$ 1,420
Thu 27-818:59DCA - SIN
1 stop36h 11mSingapore Airlines
Mon 28-920:45SIN - DCA
1 stop35h 15mSingapore Airlines
Deal found 7-1S$ 1,421
Sun 8-315:35IAD - SIN
1 stop30h 00mMultiple Airlines
Sat 21-308:20SIN - IAD
2 stops37h 45mMultiple Airlines
Deal found 6-1S$ 1,421
Sat 28-320:40DCA - SIN
2 stops44h 35mAir Canada
Sat 11-407:00SIN - DCA
2 stops37h 53mAir Canada
Deal found 6-1S$ 1,424
Thu 5-214:35IAD - SIN
2 stops31h 55mMultiple Airlines
Thu 19-219:25SIN - IAD
1 stop26h 40mMultiple Airlines
Deal found 6-1S$ 1,424
Mon 19-114:35IAD - SIN
1 stop30h 00mMultiple Airlines
Sun 25-120:00SIN - IAD
2 stops50h 05mMultiple Airlines
Deal found 6-1S$ 1,425

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 7 January 2026.
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

Wed 11-3

15:35-09:35

1 stop30h 00m

Singapore Changi

Wed 18-3

17:10-10:05

2 stops28h 55m

S$ 1,424

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9-3

07:00-20:15

1 stop25h 15m

Singapore Changi

Mon 16-3

10:10-21:45

1 stop23h 35m

S$ 1,442

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 16-3

16:11-07:00

2 stops26h 49m

Singapore Changi

Thu 26-3

22:20-09:54

2 stops23h 34m

S$ 1,447

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 18-1

20:00-20:15

2 stops35h 15m

Singapore Changi

Wed 21-1

22:20-10:56

2 stops25h 36m

S$ 1,447

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 18-2

17:50-08:00

1 stop25h 10m

Singapore Changi

Wed 25-2

10:10-22:06

2 stops24h 56m

S$ 1,447

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 18-2

13:02-08:00

2 stops29h 58m

Singapore Changi

Wed 25-2

22:20-06:51

1 stop21h 31m

S$ 1,447

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$ 1,449

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 29-3

06:00-05:15

2 stops35h 15m

Singapore Changi

Sun 19-4

07:00-21:53

2 stops26h 53m

S$ 1,450

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 12-3

06:00-00:10

2 stops30h 10m

Singapore Changi

Thu 19-3

10:40-23:35

2 stops24h 55m

S$ 1,459

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 18-2

06:05-00:10

2 stops29h 05m

Singapore Changi

Wed 25-2

10:40-22:33

2 stops24h 53m

S$ 1,459

Flights are sorted by cheapest return flights first.

Deals found on 5-1

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, November is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 987). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,462). 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 15m. United Airlines provides one of the quickest options available for as low as S$ 1,442. Airlines will cover a distance of 15532 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, November is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 987). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of S$ 1,462). 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 7 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,357AverageS$ 2,212FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
JetBlueCheapestS$ 1,373AverageS$ 2,523FlexibilityNo 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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