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Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 632

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 23-11. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
15 Aug — 22 Aug1
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 16 July 2026.

Mon 7-917:55
SIN
-
IAD
1 stop37h 35m
Air China
Tue 22-923:00
IAD
-
SIN
1 stop29h 25m
Air China
Deal found 14-7S$ 1,081
Mon 7-923:25
SIN
-
IAD
1 stop32h 05m
Air China
Fri 18-923:00
IAD
-
SIN
1 stop29h 25m
Air China
Deal found 12-7S$ 1,131
Mon 7-918:10
SIN
-
IAD
2 stops37h 20m
Air China
Tue 15-923:00
IAD
-
SIN
1 stop29h 25m
Air China
Deal found 12-7S$ 1,312
Mon 3-823:25
SIN
-
IAD
1 stop32h 05m
Air China
Fri 14-823:00
IAD
-
SIN
1 stop29h 25m
Air China
Deal found 11-7S$ 1,370
Thu 15-1011:15
SIN
-
IAD
2 stops48h 44m
Multiple Airlines
Sun 18-1013:15
IAD
-
SIN
1 stop27h 45m
Multiple Airlines
Deal found 15-7S$ 1,374
Fri 28-809:00
SIN
-
IAD
1 stop22h 30m
Air China
Fri 4-923:00
IAD
-
SIN
1 stop29h 25m
Air China
Deal found 14-7S$ 1,393

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 16 July 2026.

Round-trip from

S$ 1,081

One-way from

S$ 632

Popular in

November

Cheapest in

February

Average price

S$ 1,932
Air China
  • Air China
  • 7-9-22-9
  • 2 total stops
  • 67h 00m total
  • Singapore to Washington, D.C.
Search Deals
23-11
  • 23-11
  • 2 total stops
  • 28h 23m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (S$ 1,105 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease (S$ 357 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 16 July 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 - IAD

SINIAD

Singapore Changi

Thu 10-9

08:05-05:40

2 stops33h 35m

Washington, D.C. Dulles Intl

Mon 14-9

07:00-00:20

2 stops29h 20m

S$ 1,511

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 14-10

03:15-23:59

2 stops32h 44m

Washington, D.C. Dulles Intl

Sun 18-10

21:00-15:45

1 stop30h 45m

S$ 1,531

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 6-9

08:05-05:40

2 stops33h 35m

Washington, D.C. Dulles Intl

Thu 17-9

07:00-00:20

2 stops29h 20m

S$ 1,585

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 7-9

08:05-05:40

2 stops33h 35m

Washington, D.C. Dulles Intl

Wed 16-9

07:00-00:20

2 stops29h 20m

S$ 1,585

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 1-9

10:25-11:35

1 stop37h 10m

Washington, D.C. Dulles Intl

Wed 30-9

13:20-08:45

1 stop31h 25m

S$ 1,659

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 7-9

13:45-05:40

2 stops27h 55m

Washington, D.C. Dulles Intl

Tue 22-9

17:57-12:35

2 stops30h 38m

S$ 1,685

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 9-10

10:25-19:50

1 stop45h 25m

Washington, D.C. Dulles Intl

Sat 24-10

22:20-09:55

1 stop23h 35m

S$ 1,760

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 31-8

02:00-05:40

2 stops39h 40m

Washington, D.C. Dulles Intl

Wed 30-9

18:26-00:35

2 stops42h 09m

S$ 1,836
Fastest return journey

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 9-9

13:10-22:00

1 stop20h 50m

Washington, D.C. Dulles Intl

Wed 16-9

01:15-13:55

1 stop24h 40m

S$ 1,840
Cheapest one-way

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 2-11

14:45-05:51

2 stops28h 06m

S$ 951

Flights are sorted by cheapest return flights first.

Deals found on 13-7

Showing 1-10 of 17 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 is the cheapest month to book a flight from Singapore to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of S$ 980). Flying from Singapore to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of S$ 5,014). 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 Singapore to Washington, D.C. Dulles Intl Airport?

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 16 July 2026.
Get a feel of what it's like to fly with Turkish Airlines and Qatar Airways 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.
Turkish Airlines
7.4
Good
4,447 reviews
Check prices

Comfort

7.3

Food

7.5

Overall

7.4

Entertainment

7.5

Crew

7.8

Boarding

7.3

Reviews

1 / 20
8.0
Excellent

Muhammad,Jan 2026

ORD - DFW

Great, customer service agent at O’hare was able to change the flight due to snow storm. Thank you
Turkish Airlines
7.4
Good
4,447 reviews
Turkish Airlines
7.4
Good
4,447 reviews
Check prices

Comfort

7.3

Food

7.5

Overall

7.4

Entertainment

7.5

Crew

7.8

Boarding

7.3

Reviews

1 / 20
8.0
Excellent

Muhammad,Jan 2026

ORD - DFW

Great, customer service agent at O’hare was able to change the flight due to snow storm. Thank you
Qatar Airways
7.3
Good
3,743 reviews
Turkish Airlines
7.4
Good
4,447 reviews
Check prices

Comfort

7.3

Food

7.5

Overall

7.4

Entertainment

7.5

Crew

7.8

Boarding

7.3

Reviews

1 / 20
8.0
Excellent

Muhammad,Jan 2026

ORD - DFW

Great, customer service agent at O’hare was able to change the flight due to snow storm. Thank you

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$ 1,531, Japan Airlines can have you in Washington, D.C. Dulles Intl Airport from Singapore in 32h 44m. 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$ 1,285 on this airline. An additional option worth looking into is Qatar Airways, starting at S$ 1,788. Users have found that Turkish Airlines is 35% 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.

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

    Currently, February is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of S$ 980). Flying from Singapore to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of S$ 5,014). 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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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 16 July 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 16 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapestS$ 1,285AverageS$ 1,503FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapestS$ 1,788AverageS$ 1,864FlexibilityNo 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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