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Cheap flights from Washington, D.C. to Singapore from S$ 372

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 16-4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
7 Apr — 14 Apr1
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 8 March 2026.

Sun 1-1118:11
BWI
-
SIN
2 stops26h 29m
Multiple Airlines
Fri 13-1114:30
SIN
-
BWI
2 stops28h 51m
Multiple Airlines
Deal found 7-3S$ 1,245
Mon 27-413:20
IAD
-
SIN
1 stop39h 40m
Multiple Airlines
Thu 14-508:55
SIN
-
IAD
2 stops36h 50m
Multiple Airlines
Deal found 3-3S$ 1,289
Sat 18-413:20
IAD
-
SIN
1 stop40h 35m
Turkish Airlines
Sat 25-411:10
SIN
-
IAD
1 stop44h 40m
Turkish Airlines
Deal found 4-3S$ 1,292
Sun 23-821:45
IAD
-
SIN
1 stop32h 10m
Turkish Airlines
Thu 3-905:25
SIN
-
IAD
1 stop42h 10m
Turkish Airlines
Deal found 4-3S$ 1,293
Sat 11-415:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Sat 18-421:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 3-3S$ 1,305
Tue 22-909:40
DCA
-
SIN
2 stops31h 35m
Air Canada
Tue 29-907:00
SIN
-
DCA
2 stops39h 20m
Air Canada
Deal found 3-3S$ 1,309
Tue 22-908:29
IAD
-
SIN
1 stop32h 46m
Multiple Airlines
Tue 29-907:00
SIN
-
IAD
2 stops26h 00m
Multiple Airlines
Deal found 3-3S$ 1,315
Tue 14-415:10
IAD
-
SIN
2 stops27h 40m
Multiple Airlines
Tue 21-411:00
SIN
-
IAD
2 stops34h 45m
Multiple Airlines
Deal found 4-3S$ 1,320
Mon 27-422:08
IAD
-
SIN
2 stops43h 07m
Air Canada
Thu 14-507:00
SIN
-
IAD
2 stops25h 37m
Air Canada
Deal found 3-3S$ 1,321
Sat 18-415:10
IAD
-
SIN
2 stops27h 40m
Multiple Airlines
Thu 30-417:55
SIN
-
IAD
1 stop37h 35m
Multiple Airlines
Deal found 3-3S$ 1,324
Sun 5-415:10
IAD
-
SIN
2 stops27h 40m
Multiple Airlines
Tue 21-411:00
SIN
-
IAD
2 stops34h 45m
Multiple Airlines
Deal found 3-3S$ 1,325
Mon 30-315:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Wed 8-421:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 6-3S$ 1,330

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 8 March 2026.

Round-trip from

S$ 1,289

One-way from

S$ 372

Popular in

December

Cheapest in

August

Average price

S$ 1,623
27-4-14-5
  • 27-4-14-5
  • 3 total stops
  • 76h 30m total
  • Washington, D.C. to Singapore
Search Deals
16-4
  • 16-4
  • 3 total stops
  • 48h 45m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (S$ 407 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 121 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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 8 March 2026.
Use the filters below to find and compare flights from Washington, D.C. to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 14-4

06:10-11:45

2 stops41h 35m

Singapore Changi

Tue 28-4

12:45-05:40

2 stops28h 55m

S$ 1,370

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 14-4

06:10-05:30

2 stops35h 20m

Singapore Changi

Tue 21-4

09:45-05:40

2 stops31h 55m

S$ 1,370

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 27-4

20:20-14:40

2 stops30h 20m

Singapore Changi

Wed 13-5

03:15-16:05

1 stop24h 50m

S$ 1,426

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 22-3

11:40-10:20

2 stops34h 40m

Singapore Changi

Wed 25-3

03:15-16:55

1 stop25h 40m

S$ 1,430

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 14-4

15:05-06:45

2 stops27h 40m

Singapore Changi

Mon 27-4

09:00-22:28

1 stop25h 28m

S$ 1,503

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 2-4

10:10-06:45

2 stops32h 35m

Singapore Changi

Thu 9-4

20:35-16:29

2 stops31h 54m

S$ 1,508

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 5-4

17:59-06:45

1 stop24h 46m

Singapore Changi

Tue 21-4

09:00-22:28

1 stop25h 28m

S$ 1,545

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 31-3

13:00-06:45

2 stops29h 45m

Singapore Changi

Wed 8-4

09:00-22:28

1 stop25h 28m

S$ 1,565

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 27-4

17:59-06:45

1 stop24h 46m

Singapore Changi

Wed 3-6

08:45-22:15

1 stop25h 30m

S$ 1,566

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 23-3

22:30-20:15

2 stops33h 45m

Singapore Changi

Tue 7-4

09:00-22:44

2 stops25h 44m

S$ 1,572

Flights are sorted by cheapest return flights first.

Deals found on 3-3

Showing 1-10 of 59 resultsSorted by cheapest first
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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, September 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$ 1,448). 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.

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 8 March 2026.
See what other customers who have flown with United Airlines from Washington, D.C. to Singapore have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,405 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,405 reviews
United Airlines
7.4
Good
9,405 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 27h 40m. Qatar Airways provides one of the quickest options available for as low as S$ 1,503. 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, September 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$ 1,448). 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 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 8 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,353AverageS$ 2,206FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
JetBlueCheapestS$ 1,369AverageS$ 2,516FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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