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Cheap flights from Washington, D.C. to Singapore from S$ 607

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 2-9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
28 Aug — 4 Sep1
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 29 July 2026.

Mon 7-915:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Mon 14-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 24-7S$ 1,122
Tue 1-915:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Tue 8-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 25-7S$ 1,123
Wed 9-915:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Wed 23-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 24-7S$ 1,131
Wed 9-915:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Wed 16-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 26-7S$ 1,149
Thu 10-915:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Thu 17-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 27-7S$ 1,158
Thu 20-815:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Thu 3-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 26-7S$ 1,162
Tue 8-915:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Tue 15-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 25-7S$ 1,180
Tue 8-913:25
DCA
-
SIN
2 stops32h 15m
Etihad Airways
Fri 23-1021:00
SIN
-
DCA
2 stops34h 16m
Etihad Airways
Deal found 24-7S$ 1,226
Tue 1-919:35
DCA
-
SIN
2 stops53h 10m
Gulf Air
Tue 8-920:00
SIN
-
DCA
2 stops39h 10m
Gulf Air
Deal found 26-7S$ 1,288
Tue 4-812:40
DCA
-
SIN
2 stops28h 35m
Air Canada
Tue 25-807:00
SIN
-
DCA
2 stops44h 06m
Air Canada
Deal found 28-7S$ 1,414
Tue 1-911:00
DCA
-
SIN
2 stops30h 15m
Air Canada
Tue 8-907:00
SIN
-
DCA
2 stops24h 59m
Air Canada
Deal found 25-7S$ 1,423
Thu 10-909:40
DCA
-
SIN
2 stops31h 35m
Air Canada
Thu 17-907:00
SIN
-
DCA
2 stops39h 20m
Air Canada
Deal found 27-7S$ 1,424

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 29 July 2026.

Round-trip from

S$ 1,122

One-way from

S$ 607

Popular in

December

Cheapest in

February

Average price

S$ 1,676
Etihad Airways
  • Etihad Airways
  • 7-9-14-9
  • 2 total stops
  • 55h 15m total
  • Washington, D.C. to Singapore
Search Deals
Etihad Airways
  • Etihad Airways
  • 2-9
  • 1 total stop
  • 30h 30m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (S$ 257 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (S$ 112 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 29 July 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 10-11

21:20-17:40

1 stop31h 20m

Singapore Changi

Mon 30-11

11:35-11:45

1 stop37h 10m

S$ 1,226

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 10-9

13:15-09:30

1 stop32h 15m

Singapore Changi

Thu 24-9

10:25-11:30

1 stop37h 05m

S$ 1,226

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 19-9

13:15-23:55

1 stop22h 40m

Singapore Changi

Fri 25-9

07:30-11:05

1 stop39h 35m

S$ 1,441

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 12-9

08:08-23:55

2 stops27h 47m

Singapore Changi

Tue 27-10

10:40-10:50

1 stop36h 10m

S$ 1,447

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 11-9

08:08-23:55

2 stops27h 47m

Singapore Changi

Mon 26-10

22:30-10:50

1 stop24h 20m

S$ 1,447

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 5-9

06:10-05:00

2 stops34h 50m

Singapore Changi

Mon 21-9

07:30-23:44

2 stops28h 14m

S$ 1,455

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 13-8

07:00-23:55

2 stops28h 55m

Singapore Changi

Fri 28-8

07:30-23:39

2 stops28h 09m

S$ 1,455

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 27-8

11:05-00:10

2 stops25h 05m

Singapore Changi

Sun 30-8

03:15-15:40

1 stop24h 25m

S$ 1,481

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 25-8

08:28-23:55

2 stops27h 27m

Singapore Changi

Tue 1-9

07:30-11:05

1 stop39h 35m

S$ 1,499

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 28-9

08:08-05:00

2 stops32h 52m

Singapore Changi

Thu 8-10

22:00-11:05

1 stop25h 05m

S$ 1,499

Flights are sorted by cheapest return flights first.

Deals found on 24-7

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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, February is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 1,389). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 2,591). 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.

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 85 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.

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 29 July 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
10,046 reviews
Check prices

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
10,046 reviews
United Airlines
7.4
Good
10,046 reviews
Check prices

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 40m. Turkish Airlines provides one of the quickest options available for as low as S$ 1,441. 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, Washington, D.C. Reagan-National - Singapore Changi or Baltimore/Washington - 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, February is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 1,389). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 2,591). 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 29 July 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapestS$ 1,108AverageS$ 2,553FlexibilityNo 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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