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Cheap flights from Washington, D.C. to Singapore from S$ 651

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 3-5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
27 May — 3 Jun1
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 27 April 2026.

Mon 28-921:00
IAD
-
SIN
2 stops26h 25m
Qatar Airways
Thu 8-1016:35
SIN
-
IAD
2 stops35h 05m
Qatar Airways
Deal found 23-4S$ 1,537
Wed 12-821:00
IAD
-
SIN
1 stop30h 45m
Qatar Airways
Tue 18-803:15
SIN
-
IAD
1 stop24h 25m
Qatar Airways
Deal found 23-4S$ 1,538
Wed 5-815:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Wed 19-821:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 22-4S$ 1,541
Sat 16-521:00
IAD
-
SIN
1 stop31h 15m
Qatar Airways
Sun 24-501:30
SIN
-
IAD
1 stop28h 50m
Qatar Airways
Deal found 22-4S$ 1,544
Wed 9-909:30
DCA
-
SIN
1 stop31h 45m
Singapore Airlines
Wed 16-920:45
SIN
-
DCA
1 stop35h 15m
Singapore Airlines
Deal found 22-4S$ 1,546
Sun 31-515:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Mon 26-1019:25
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 22-4S$ 1,546
Sat 25-421:00
IAD
-
SIN
1 stop24h 20m
Qatar Airways
Mon 4-501:30
SIN
-
IAD
1 stop28h 50m
Qatar Airways
Deal found 23-4S$ 1,547
Thu 23-414:05
IAD
-
SIN
1 stop31h 35m
Etihad Airways
Thu 7-521:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 23-4S$ 1,550
Tue 13-1020:40
DCA
-
SIN
2 stops68h 35m
Air Canada
Tue 27-1008:50
SIN
-
DCA
2 stops39h 29m
Air Canada
Deal found 23-4S$ 1,553
Tue 4-811:05
IAD
-
SIN
1 stop22h 10m
Qatar Airways
Wed 2-919:40
SIN
-
IAD
1 stop25h 05m
Qatar Airways
Deal found 25-4S$ 1,553
Tue 5-521:00
IAD
-
SIN
2 stops29h 40m
Qatar Airways
Fri 22-501:30
SIN
-
IAD
1 stop28h 50m
Qatar Airways
Deal found 27-4S$ 1,554
Wed 18-1113:30
IAD
-
SIN
1 stop30h 15m
Turkish Airlines
Sat 28-1105:25
SIN
-
IAD
1 stop26h 50m
Turkish Airlines
Deal found 24-4S$ 1,555

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 27 April 2026.

Round-trip from

S$ 1,537

One-way from

S$ 651

Popular in

December

Cheapest in

August

Average price

S$ 1,564
Qatar Airways
  • Qatar Airways
  • 28-9-8-10
  • 4 total stops
  • 61h 30m total
  • Washington, D.C. to Singapore
Search Deals
Qatar Airways
  • Qatar Airways
  • 3-5
  • 1 total stop
  • 31h 15m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (S$ 355 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 119 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 27 April 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

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 9-6

18:40-09:20

2 stops26h 40m

Singapore Changi

Mon 15-6

01:05-19:59

2 stops30h 54m

S$ 2,003

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 20-8

18:23-18:30

2 stops36h 07m

Singapore Changi

Wed 26-8

21:35-23:33

2 stops37h 58m

S$ 2,016

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Wed 12-8

07:16-18:30

2 stops47h 14m

Singapore Changi

Wed 19-8

21:35-23:59

2 stops38h 24m

S$ 2,036

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 16-7

11:05-21:15

1 stop22h 10m

Singapore Changi

Tue 4-8

16:35-15:40

2 stops35h 05m

S$ 2,137

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 12-5

17:59-06:45

1 stop24h 46m

Singapore Changi

Tue 26-5

08:45-22:15

1 stop25h 30m

S$ 2,203

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 5-8

17:59-06:15

1 stop24h 16m

Singapore Changi

Wed 19-8

20:35-18:25

2 stops33h 50m

S$ 2,208

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 9-6

21:00-15:35

2 stops30h 35m

Singapore Changi

Mon 15-6

01:05-22:47

2 stops33h 42m

S$ 2,232

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 7-6

18:59-18:30

2 stops35h 31m

Singapore Changi

Sun 14-6

21:35-23:14

2 stops37h 39m

S$ 2,269

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 15-7

19:58-18:30

2 stops34h 32m

Singapore Changi

Tue 4-8

21:35-23:33

2 stops37h 58m

S$ 2,283

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8-6

15:10-09:40

1 stop30h 30m

Singapore Changi

Tue 18-8

17:00-09:45

2 stops28h 45m

S$ 2,320

Flights are sorted by cheapest return flights first.

Deals found on 26-4

Showing 1-10 of 60 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

How far ahead should I book a flight from Washington, D.C. to Singapore?

The best time to book flights from Washington, D.C. to Singapore is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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$ 438). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 1,369). 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 27 April 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
9,665 reviews
Check prices

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,665 reviews
United Airlines
7.4
Good
9,665 reviews
Check prices

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 22h 10m. Qatar Airways provides one of the quickest options available for as low as S$ 2,137. Airlines will cover a distance of 15521 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$ 438). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 1,369). 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 27 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,352AverageS$ 2,205FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
JetBlueCheapestS$ 1,368AverageS$ 2,514FlexibilityNo 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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