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Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from S$ 533

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 28-9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
21 Aug — 28 Aug1
1 adult

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Singapore Changi are usually found in November or January, booked 83 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap flight deals from Dulles Intl to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 August 2025.

Round-trip from

S$ 1,110

One-way from

S$ 533

Popular in

December

Cheapest in

November

Average price

S$ 1,565
Etihad Airways
  • Etihad Airways
  • 11-9-30-9
  • 2 total stops
  • 54h 35m total
  • Washington, D.C. to Singapore
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IndiGo
  • IndiGo
  • 28-9
  • 2 total stops
  • 39h 50m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (S$ 120 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (S$ 92 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Dulles Intl to Singapore

Cheapest flights from Dulles Intl to Singapore
Explore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 August 2025.

Thu 11-922:05IAD - SIN
1 stop23h 35mEtihad Airways
Tue 30-921:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 16-8S$ 1,110
Mon 1-922:05IAD - SIN
1 stop23h 35mEtihad Airways
Sun 14-921:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 15-8S$ 1,123
Sat 23-822:05IAD - SIN
1 stop23h 35mEtihad Airways
Mon 8-921:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 15-8S$ 1,126
Wed 10-921:40IAD - SIN
2 stops31h 40mMultiple Airlines
Thu 25-923:25SIN - IAD
1 stop32h 05mMultiple Airlines
Deal found 14-8S$ 1,137
Sun 14-922:05IAD - SIN
1 stop23h 35mEtihad Airways
Mon 29-921:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 16-8S$ 1,145
Wed 17-922:05IAD - SIN
1 stop23h 35mEtihad Airways
Tue 30-921:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 13-8S$ 1,146
Sun 21-922:05IAD - SIN
1 stop23h 35mEtihad Airways
Tue 30-921:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 15-8S$ 1,150
Thu 11-921:40IAD - SIN
2 stops32h 05mMultiple Airlines
Thu 18-923:25SIN - IAD
1 stop32h 05mMultiple Airlines
Deal found 14-8S$ 1,152
Wed 27-822:05IAD - SIN
1 stop23h 35mEtihad Airways
Mon 8-921:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 14-8S$ 1,160

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dulles Intl 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 16 August 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Singapore that are best for you.

Fly from

Dulles Intl

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 10-9

22:05-09:40

1 stop23h 35m

Singapore Changi

Thu 25-9

21:10-16:10

1 stop31h 00m

S$ 1,137

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 10-9

21:40-17:20

2 stops31h 40m

Singapore Changi

Thu 25-9

23:25-19:30

1 stop32h 05m

S$ 1,137

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 11-9

13:30-17:45

2 stops40h 15m

Singapore Changi

Thu 18-9

23:25-19:30

1 stop32h 05m

S$ 1,137

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 30-9

22:05-09:40

1 stop23h 35m

Singapore Changi

Tue 14-10

21:10-16:10

1 stop31h 00m

S$ 1,145

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 17-9

22:05-09:40

1 stop23h 35m

Singapore Changi

Tue 30-9

21:10-16:10

1 stop31h 00m

S$ 1,146

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 27-8

22:05-09:40

1 stop23h 35m

Singapore Changi

Mon 8-9

21:10-16:10

1 stop31h 00m

S$ 1,160

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 27-8

22:05-09:40

1 stop23h 35m

Singapore Changi

Sun 7-9

21:10-16:10

1 stop31h 00m

S$ 1,160

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 13-10

22:05-09:40

1 stop23h 35m

Singapore Changi

Wed 22-10

21:10-16:10

1 stop31h 00m

S$ 1,160

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 19-1

21:10-09:35

1 stop23h 25m

Singapore Changi

Wed 28-1

19:25-16:05

1 stop33h 40m

S$ 1,164

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 16-1

21:10-09:35

1 stop23h 25m

Singapore Changi

Fri 30-1

19:25-16:05

1 stop33h 40m

S$ 1,164

Flights are sorted by cheapest return flights first.

Deals found on 15-8

Showing 1-10 of 22 results
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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
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. Dulles Intl Airport to Singapore

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

Use this chart to determine the optimal time to book a return flight from Dulles Intl to Singapore. Price data was last updated on 8 August 2025.

Booking 82 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.

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 16 August 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Singapore, such as Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,609 reviews
Check prices

Food

7.3

Boarding

7.5

Comfort

7.4

Entertainment

7.4

Overall

7.4

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Qatar Airways
7.4
Good
3,609 reviews
Qatar Airways
7.4
Good
3,609 reviews
Check prices

Food

7.3

Boarding

7.5

Comfort

7.4

Entertainment

7.4

Overall

7.4

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

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

    Qatar Airways, at S$ 1,271, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Singapore.. Qatar Airways is priced at 16% lower than the current average price of a flight leaving 3 months from now.

  • 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.

See more FAQs

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Top airline flying from Dulles Intl to Singapore

Discover the top airline that operate flights from Dulles Intl 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 16 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,271AverageS$ 2,027FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

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