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Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from C$ 720

IAD — SIN
20 Nov — 27 Nov1
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

Wed 28/106:20 p.m. -
1 stop24h 40m
Thu 5/1110:10 a.m. -
2 stops27h 30m
Deal found 20/10C$ 1,657
Sun 25/1010:10 p.m. -
2 stops44h 45m
Sun 1/1110:45 a.m. -
1 stop35h 25m
Deal found 20/10C$ 1,665
Thu 19/111:30 p.m. -
1 stop30h 15m
Thu 26/115:10 a.m. -
1 stop43h 35m
Deal found 19/10C$ 1,699
Sat 31/102:30 p.m. -
1 stop31h 30m
Thu 19/114:35 a.m. -
1 stop27h 50m
Deal found 21/10C$ 1,700
Sat 24/106:35 a.m. -
1 stop25h 40m
Tue 27/1010:10 a.m. -
1 stop22h 41m
Deal found 16/10C$ 1,706
Sat 24/106:35 a.m. -
1 stop25h 40m
Sun 1/1110:45 a.m. -
1 stop35h 25m
Deal found 16/10C$ 1,707
Thu 3/1211:10 a.m. -
1 stop30h 45m
Sun 13/1210:20 p.m. -
2 stops26h 26m
Deal found 20/10C$ 1,720
Fri 4/127:00 a.m. -
2 stops34h 55m
Mon 18/110:45 a.m. -
1 stop35h 25m
Deal found 19/10C$ 1,724
Wed 4/117:23 a.m. -
2 stops32h 37m
Fri 20/1110:30 a.m. -
2 stops25h 51m
Deal found 21/10C$ 1,731
Wed 4/118:50 p.m. -
2 stops29h 00m
Fri 13/112:00 a.m. -
2 stops30h 05m
Deal found 21/10C$ 1,751
Thu 12/1111:50 a.m. -
1 stop28h 10m
Mon 23/111:40 a.m. -
2 stops28h 48m
Deal found 18/10C$ 1,754

Find flight deals from Dulles Intl to Singapore

Round-trip from

C$ 1,657

One-way from

C$ 720

Popular in

December

Cheapest in

February

Average price

C$ 1,508
United Airlines
  • United Airlines
  • 2/11-17/11
  • 3 total stops
  • 48h 38m total
  • Washington, D.C. to Singapore
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Etihad Airways
  • Etihad Airways
  • 24/2-31/12
  • 1 total stop
  • 30h 10m total
  • Washington, D.C. to Singapore
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Highest demand for flights based on searches. 9% potential increase in price (C$ 265 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 118 potential savings vs. average RT price).
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Average for round-trip flights in October 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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Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 20/1

11:50 a.m.-8:25 p.m.

1 stop43h 35m

Singapore Changi

Wed 31/12

12:00 a.m.-11:30 a.m.

Nonstop0h 00m

C$ 755

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Mon 1/2

6:10 a.m.-5:00 a.m.

2 stops33h 50m

Singapore Changi

Wed 31/12

12:00 a.m.-11:30 a.m.

Nonstop0h 00m

C$ 759

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sun 21/2

5:00 p.m.-5:00 a.m.

2 stops47h 00m

Singapore Changi

Wed 31/12

12:00 a.m.-11:30 a.m.

Nonstop0h 00m

C$ 775

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 27/1

6:30 p.m.-8:25 p.m.

2 stops60h 55m

Singapore Changi

Wed 31/12

12:00 a.m.-11:30 a.m.

Nonstop0h 00m

C$ 779
Quickest round-trip

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sat 13/2

11:50 a.m.-5:00 a.m.

1 stop28h 10m

Singapore Changi

Wed 31/12

12:00 a.m.-11:30 a.m.

Nonstop0h 00m

C$ 847

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Thu 25/2

7:00 a.m.-5:00 a.m.

2 stops33h 00m

Singapore Changi

Wed 31/12

12:00 a.m.-11:30 a.m.

Nonstop0h 00m

C$ 865

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sun 10/1

7:50 p.m.-12:15 a.m.

2 stops39h 25m

Singapore Changi

Wed 31/12

12:00 a.m.-11:30 a.m.

Nonstop0h 00m

C$ 880

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 17/3

6:15 a.m.-11:40 p.m.

2 stops29h 25m

Singapore Changi

Thu 1/4

9:00 a.m.-10:43 p.m.

1 stop25h 43m

C$ 1,685

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sat 16/1

8:05 p.m.-10:30 a.m.

2 stops25h 25m

Singapore Changi

Sun 31/1

9:20 p.m.-3:55 p.m.

2 stops31h 35m

C$ 1,720

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 2/12

10:19 p.m.-8:15 p.m.

1 stop32h 56m

Singapore Changi

Sat 16/1

10:45 a.m.-6:50 a.m.

2 stops33h 05m

C$ 1,724

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/10

Showing 1-10 of 18 resultsSorted by cheapest first
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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 round-trip 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?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Singapore, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of C$ 1,343). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of C$ 2,772). 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 to fly round-trip from Washington, D.C. Dulles Intl Airport to Singapore?

Airfare is typical for this route at the moment.

Washington, D.C. Dulles Intl Airport to Singapore flights typically cost between C$ 1,506 and C$ 1,666 in November.
The cheapest round-trip price found within the last 5 days was C$ 1,657 on United Airlines (2 Nov-17 Nov).

Related info for your journey

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

    Singapore Changi (SIN), located 16.9 km from the city centre, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Singapore. 0 airlines have flights to Changi from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Singapore Changi should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.

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

    Airlines like Qatar Airways, United Airlines, and Delta fly from Washington, D.C. Dulles Intl Airport to Singapore in about 25h 25m. The time it takes to get you to your destination can typically vary by up to 7h 31m. The distance from Washington, D.C. Dulles Intl Airport to Singapore is about 15521 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 vacation 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of C$ 1,343). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of C$ 2,772). 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

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When you search for this flight from Dulles Intl to Singapore, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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