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Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 700

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 2-11. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
16 Sep — 23 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Singapore to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Singapore to Dulles Intl
Explore the most affordable flight options available from Singapore to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 August 2026.

Mon 14-923:25 -
1 stop32h 05m
Fri 18-923:00 -
1 stop29h 25m
Deal found 14-8S$ 1,019
Thu 10-923:25 -
1 stop32h 05m
Thu 17-915:10 -
1 stop30h 30m
Deal found 13-8S$ 1,341
Mon 14-923:25 -
1 stop32h 05m
Mon 21-915:10 -
1 stop30h 30m
Deal found 15-8S$ 1,343
Mon 14-923:25 -
1 stop32h 05m
Tue 29-915:10 -
1 stop30h 30m
Deal found 16-8S$ 1,344
Thu 10-917:55 -
1 stop37h 35m
Fri 25-913:15 -
1 stop22h 40m
Deal found 12-8S$ 1,353
Mon 14-917:55 -
1 stop37h 35m
Fri 18-906:00 -
2 stops29h 55m
Deal found 13-8S$ 1,360
Fri 16-1009:00 -
1 stop22h 30m
Tue 10-1122:00 -
1 stop43h 50m
Deal found 16-8S$ 1,411
Tue 6-1007:00 -
2 stops44h 25m
Fri 23-1009:55 -
2 stops31h 20m
Deal found 16-8S$ 1,421
Tue 29-907:00 -
2 stops25h 25m
Tue 6-1009:55 -
2 stops31h 20m
Deal found 15-8S$ 1,422

Find flight deals from Singapore to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to Dulles Intl (IAD). 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 17 August 2026.

Round-trip from

S$ 1,019

One-way from

S$ 700

Popular in

November

Cheapest in

January

Average price

S$ 2,198
Air China
  • Air China
  • 14-9-18-9
  • 2 total stops
  • 61h 30m total
  • Singapore to Washington, D.C.
Search Deals
Air China
  • Air China
  • 2-11
  • 1 total stop
  • 31h 35m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (S$ 1,075 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease (S$ 361 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Singapore to Dulles Intl 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 17 August 2026.
Use the filters below to find and compare flights from Singapore to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Wed 30-9

03:15-23:59

2 stops32h 44m

Washington, D.C. Dulles Intl

Thu 8-10

21:00-15:45

1 stop30h 45m

S$ 1,525

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Tue 15-9

14:10-05:40

2 stops27h 30m

Washington, D.C. Dulles Intl

Sat 19-9

17:46-12:40

2 stops30h 54m

S$ 1,619

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Sun 27-9

08:45-22:59

2 stops26h 14m

Washington, D.C. Dulles Intl

Sun 4-10

17:48-18:35

1 stop36h 47m

S$ 1,634

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Thu 27-8

08:05-23:59

2 stops27h 54m

Washington, D.C. Dulles Intl

Sun 30-8

07:00-00:20

2 stops29h 20m

S$ 1,815
Fastest return journey

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Thu 10-9

21:00-08:50

1 stop23h 50m

Washington, D.C. Dulles Intl

Mon 14-9

10:55-21:45

1 stop22h 50m

S$ 1,907

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Tue 1-9

08:45-21:22

1 stop24h 37m

Washington, D.C. Dulles Intl

Wed 30-9

06:35-18:35

1 stop24h 00m

S$ 1,939

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Tue 1-9

07:30-23:59

2 stops28h 29m

Washington, D.C. Dulles Intl

Wed 30-9

06:00-23:55

2 stops29h 55m

S$ 1,949

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Sat 29-8

21:30-08:40

2 stops47h 10m

Washington, D.C. Dulles Intl

Tue 1-9

10:55-20:30

2 stops45h 35m

S$ 2,008

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Wed 9-9

03:15-15:40

1 stop24h 25m

Washington, D.C. Dulles Intl

Mon 14-9

21:00-18:15

2 stops33h 15m

S$ 2,010

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Wed 26-8

00:50-08:40

1 stop43h 50m

Washington, D.C. Dulles Intl

Sun 30-8

10:55-21:45

1 stop22h 50m

S$ 2,196

Flights are sorted by cheapest return flights first.

Deals found on 17-8

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Singapore to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Singapore 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 Singapore to Washington, D.C. Dulles Intl Airport

What’s the top stopover airport for flights from Singapore to Washington, D.C. Dulles Intl Airport?

Share of one-stop return flights from Singapore to Washington, D.C. Dulles Intl Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Istanbul (IST) – chosen by Cheapflights users on 42% of one-stop itineraries from Singapore to Washington, D.C. Dulles Intl Airport on Cheapflights.

What’s the cheapest stopover airport for flights from Singapore to Washington, D.C. Dulles Intl Airport?

Average return fare for one-stop flights from Singapore to Washington, D.C. Dulles Intl Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Incheon (ICN) is the most affordable one-stop option, with an average return flight price of S$ 1,740.

What’s the fastest stopover option from Singapore to Washington, D.C. Dulles Intl Airport?

Shortest average travel time for one-stop one-way flights from Singapore to Washington, D.C. Dulles Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Incheon (ICN) have the shortest average one-way travel time for one-stop routes: 21h 30m.

Which airport typically offers the quickest stopover for flights from Singapore to Washington, D.C. Dulles Intl Airport?

Average stopover duration for one-stop one-way flights from Singapore to Washington, D.C. Dulles Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Incheon (ICN) offer the fastest connection on this route, with an average stopover time of 1h 16m.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 17 August 2026.
Get a feel of what it's like to fly with Qatar Airways and Turkish Airlines from Singapore to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,738 reviews
Check prices

Crew

7.9

Food

7.3

Overall

7.4

Comfort

7.3

Boarding

7.5

Entertainment

7.3

Reviews

1 / 20
4.0
Okay

Scott,Jul 2026

DOH - ORD

Food and entertainment were really good. Seats and leg room were horrible. Stop being greedy and treating your passengers like cattle. Cramming people into seats where they have little to no leg room is inhumane. I'm over 2m tall, so I understand I'm on the high end of the spectrum, but there should be no reason why my knees were smashed up against the seat in front of me for an entire 14hr flight. I have flown internationally for over 30 years and it was the most uncomfortable flight I have ever been on. I would expect more from an airline that is trying to promote itself as a top tier option.
Qatar Airways
7.4
Good
3,738 reviews
Qatar Airways
7.4
Good
3,738 reviews
Check prices

Crew

7.9

Food

7.3

Overall

7.4

Comfort

7.3

Boarding

7.5

Entertainment

7.3

Reviews

1 / 20
4.0
Okay

Scott,Jul 2026

DOH - ORD

Food and entertainment were really good. Seats and leg room were horrible. Stop being greedy and treating your passengers like cattle. Cramming people into seats where they have little to no leg room is inhumane. I'm over 2m tall, so I understand I'm on the high end of the spectrum, but there should be no reason why my knees were smashed up against the seat in front of me for an entire 14hr flight. I have flown internationally for over 30 years and it was the most uncomfortable flight I have ever been on. I would expect more from an airline that is trying to promote itself as a top tier option.
Turkish Airlines
7.4
Good
4,472 reviews
Qatar Airways
7.4
Good
3,738 reviews
Check prices

Crew

7.9

Food

7.3

Overall

7.4

Comfort

7.3

Boarding

7.5

Entertainment

7.3

Reviews

1 / 20
4.0
Okay

Scott,Jul 2026

DOH - ORD

Food and entertainment were really good. Seats and leg room were horrible. Stop being greedy and treating your passengers like cattle. Cramming people into seats where they have little to no leg room is inhumane. I'm over 2m tall, so I understand I'm on the high end of the spectrum, but there should be no reason why my knees were smashed up against the seat in front of me for an entire 14hr flight. I have flown internationally for over 30 years and it was the most uncomfortable flight I have ever been on. I would expect more from an airline that is trying to promote itself as a top tier option.

Related info for your journey

Find useful and relevant information for your journey from Singapore to Dulles Intl. 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 from for flights from Singapore to 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 Washington, D.C. Dulles Intl from Singapore. Booking flights from Changi (SIN) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 2 different airlines.

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

    For as low as S$ 1,634, Qatar Airways can have you in Washington, D.C. Dulles Intl Airport from Singapore in 26h 14m. The distance between Singapore and Washington, D.C. Dulles Intl Airport is about 15521 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Singapore to Washington, D.C. Dulles Intl Airport round-trip?

    Our cheapest airline available from Singapore to Washington, D.C. Dulles Intl Airport is Turkish Airlines. Our recent data shows that you can find tickets from as low as S$ 1,273 on this airline. An additional option worth looking into is Qatar Airways, starting at S$ 1,771. Users have found that Turkish Airlines is 40% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Singapore to Dulles Intl 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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Fly from Singapore to Dulles Intl on these airlines

Choose from the following airlines for your flight from Singapore to Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on 17 August 2026.
Qatar Airways flights from Singapore Changi to Washington, D.C. Dulles Intl

Top 2 airlines flying from Singapore to Dulles Intl

Discover the top 2 airlines that operate flights from Singapore to Dulles Intl. 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 17 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapestS$ 1,273AverageS$ 1,421FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapestS$ 1,771AverageS$ 1,846FlexibilityNo cancel feeOn-time68%
Search Qatar Airways 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 Singapore to Dulles Intl?

Deals for Singapore to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Singapore to Dulles Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Singapore to Dulles Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Singapore to Dulles Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Singapore to Dulles Intl with no change fees.

Can Cheapflights notify me if prices for flights from Singapore to Dulles Intl become cheaper?

Yes! Start tracking prices for Singapore to Dulles Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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