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Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from £397

IAD — SIN
11 Dec — 18 Dec1
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

Sat 28/1113:30 -
1 stop39h 10m
Thu 10/1223:15 -
1 stop33h 10m
Deal found 10/11£908
Sat 28/1106:00 -
2 stops34h 00m
Sun 6/1210:30 -
2 stops26h 06m
Deal found 10/11£908
Sat 28/1114:25 -
1 stop30h 20m
Mon 7/1219:25 -
1 stop26h 35m
Deal found 11/11£919
Mon 30/1113:30 -
1 stop31h 30m
Sun 6/1210:25 -
1 stop46h 00m
Deal found 10/11£923
Sun 6/1213:30 -
1 stop28h 20m
Sat 26/1210:25 -
1 stop38h 20m
Deal found 6/11£923
Sat 5/1221:20 -
1 stop22h 25m
Wed 30/1211:40 -
1 stop37h 05m
Deal found 6/11£928
Sun 8/1120:05 -
1 stop23h 40m
Sun 22/1103:15 -
1 stop25h 40m
Deal found 7/11£934
Fri 4/1213:30 -
1 stop28h 20m
Mon 7/1223:15 -
1 stop25h 30m
Deal found 10/11£938
Sat 5/1213:30 -
1 stop30h 15m
Mon 28/1211:40 -
1 stop37h 05m
Deal found 6/11£938
Mon 30/1113:30 -
1 stop31h 30m
Sat 12/1210:25 -
1 stop46h 00m
Deal found 10/11£942
Sat 28/1114:25 -
1 stop30h 20m
Sat 12/1219:25 -
1 stop26h 35m
Deal found 11/11£949

Find flight deals from Dulles Intl to Singapore

Round-trip from

£899

One-way from

£397

Popular in

December

Cheapest in

February

Average price

£903
12/1-27/1
  • 12/1-27/1
  • 4 total stops
  • 75h 16m total
  • Washington, D.C. to Singapore
Search Deals
Etihad Airways
  • Etihad Airways
  • 27/1-31/12
  • 1 total stop
  • 30h 10m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£33 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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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Cheapest return flight

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Mon 18/1

06:00-00:20

2 stops29h 20m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£450

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 20/1

06:00-15:40

2 stops44h 40m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£450

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sat 13/2

17:38-05:00

2 stops46h 22m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£466

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 2/12

06:00-05:00

2 stops34h 00m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£566

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sun 3/1

14:25-09:35

1 stop30h 10m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£569

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 30/12

14:25-09:35

1 stop30h 10m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£569

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Fri 20/11

22:10-20:15

2 stops33h 05m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£576

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sun 3/1

22:13-00:45

2 stops37h 32m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£615

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Tue 29/12

14:25-09:35

1 stop30h 10m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£676

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sun 13/12

06:00-05:00

2 stops34h 00m

Singapore Changi

Wed 31/12

00:00-11:30

Nonstop0h 00m

£793

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 24 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 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?

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Singapore may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 £778). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of £1,478). 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 typical for this route at the moment.

Washington, D.C. Dulles Intl Airport to Singapore flights typically cost between £883 and £991 in January.
The cheapest return price found within the last 5 days was £899 on Multiple Airlines (12 Jan–27 Jan).

Related info for your journey

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

    Most people fly into Singapore Changi (SIN) if they book a flight to Singapore from Washington, D.C. Dulles Intl. On average, Changi has 0 inbound flights from Washington, D.C. Dulles Intl per day from 0 airlines. Singapore Changi is conveniently located just 10.5 mi from Singapore’s city center.

  • 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 28h 10m. Fly via Korean Air or Turkish Airlines to get the fastest option. The distance from Washington, D.C. Dulles Intl Airport to Singapore is about 9644 mi. 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 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of £778). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of £1,478). 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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