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Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from S$ 524

IAD — SIN
5 Oct — 12 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Singapore

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Singapore

Mon 7-915:10 -
1 stop30h 30m
Mon 21-921:00 -
1 stop24h 45m
Deal found 31-8S$ 1,245
Sun 13-915:10 -
1 stop30h 30m
Mon 28-917:55 -
1 stop37h 35m
Deal found 31-8S$ 1,253
Wed 9-915:10 -
1 stop30h 30m
Wed 23-921:00 -
1 stop24h 45m
Deal found 1-9S$ 1,269
Thu 17-915:10 -
1 stop30h 30m
Mon 28-921:00 -
1 stop24h 45m
Deal found 31-8S$ 1,277
Wed 9-909:03 -
2 stops36h 02m
Thu 17-917:55 -
1 stop37h 35m
Deal found 1-9S$ 1,278
Tue 3-1122:00 -
1 stop29h 15m
Thu 12-1123:55 -
1 stop31h 35m
Deal found 4-9S$ 1,283
Tue 3-1122:00 -
1 stop43h 50m
Mon 9-1123:55 -
1 stop31h 35m
Deal found 4-9S$ 1,292
Wed 21-1015:10 -
1 stop30h 30m
Wed 28-1019:25 -
1 stop26h 40m
Deal found 4-9S$ 1,295
Thu 15-1011:05 -
1 stop22h 10m
Wed 21-1003:15 -
1 stop24h 25m
Deal found 31-8S$ 1,297
Thu 12-1109:55 -
2 stops32h 05m
Tue 24-1108:40 -
2 stops24h 43m
Deal found 1-9S$ 1,299

Find flight deals from Dulles Intl to Singapore

Round-trip from

S$ 1,253

One-way from

S$ 524

Popular in

December

Cheapest in

April

Average price

S$ 1,462
Air China
  • Air China
  • 15-9-28-9
  • 2 total stops
  • 62h 35m total
  • Washington, D.C. to Singapore
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Air China
  • Air China
  • 11-9-31-12
  • 1 total stop
  • 43h 50m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (S$ 197 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (S$ 90 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Singapore that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Sat 7-11

17:50-15:30

1 stop32h 40m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 709

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Mon 15-2

14:35-09:35

1 stop30h 00m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 730

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Sun 13-9

15:10-09:40

1 stop30h 30m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 730

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Wed 24-2

06:10-11:50

2 stops40h 40m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 759
Fastest return journey

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Sat 14-11

11:50-05:00

1 stop28h 10m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 763

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Mon 15-2

06:00-05:00

2 stops34h 00m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 766

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Thu 28-1

18:30-20:25

2 stops36h 55m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 769

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Sun 20-9

15:10-09:40

1 stop30h 30m

Singapore Changi

Mon 5-10

21:00-09:45

1 stop24h 45m

S$ 1,347

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Thu 24-9

15:10-09:40

1 stop30h 30m

Singapore Changi

Tue 6-10

21:00-09:45

1 stop24h 45m

S$ 1,368

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Wed 16-9

08:08-23:55

2 stops27h 47m

Singapore Changi

Tue 29-9

22:00-14:11

2 stops28h 11m

S$ 1,371

Flights are sorted by cheapest return flights first.

Deals found on 2-9

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Dulles Intl to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Dulles Intl with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Singapore

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

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Singapore?

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of S$ 1,354). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of S$ 2,465). 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 much does it cost for a return flight from Washington, D.C. Dulles Intl Airport to Singapore?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Singapore flights typically cost between S$ 1,425 and S$ 1,551 in September.
The cheapest return price found within the last 5 days was S$ 1,253 on Multiple Airlines (15 Sept–28 Sept).

Reviews of airlines servicing Singapore

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Singapore, such as JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.1
Good
3,046 reviews
Check prices

Entertainment

7.2

Crew

7.9

Comfort

7.4

Food

6.6

Boarding

7.3

Overall

7.1

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

ISP - FLL

Had a four delay with family of 5 was not a great day.
JetBlue
7.1
Good
3,046 reviews
JetBlue
7.1
Good
3,046 reviews
Check prices

Entertainment

7.2

Crew

7.9

Comfort

7.4

Food

6.6

Boarding

7.3

Overall

7.1

Reviews

1 / 20
6.0
Good

Anonymous,Jul 2026

ISP - FLL

Had a four delay with family of 5 was not a great day.

Related info for your journey

  • What airport do you fly into for flights to Singapore from Washington, D.C. Dulles Intl?

    Located just 16.9 km from the city centre, Singapore Changi is the airport most travellers will use when flying to Singapore from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Changi (SIN) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Singapore?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Singapore in 27h 47m. Fly via Etihad Airways or Korean Air to get the fastest option. There are 15521 km between Washington, D.C. Dulles Intl Airport and Singapore. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Singapore round-trip?

    JetBlue, at S$ 2,397, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Singapore..

  • Can I find deals for flights from Dulles Intl to Singapore that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Singapore.

  • Can I find deals for business class flights from Dulles Intl to Singapore?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Singapore?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of S$ 1,354). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of S$ 2,465). 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

Top airline flying from Dulles Intl to Singapore

AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapestS$ 2,397AverageS$ 2,503FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

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