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Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 575

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 20-11. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
7 Jul — 14 Jul1
1 adult

Cheapflights Tip: The best prices from Singapore Changi to Washington, D.C. Dulles Intl are usually found in March or February, booked 78 days in advance, depart on a Friday or Monday and return on a Monday

Cheap 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 2 July 2025.

Round-trip from

S$ 1,023

One-way from

S$ 575

Popular in

July

Cheapest in

March

Average price

S$ 2,073
Air Canada
  • Air Canada
  • 5-10-18-10
  • 4 total stops
  • 84h 43m total
  • Singapore to Washington, D.C.
Air China
  • Air China
  • 20-11
  • 1 total stop
  • 31h 35m total
  • Singapore to Washington, D.C.
Highest demand for flights based on searches. 8% potential increase in price (S$ 189 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (S$ 46 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Singapore to Dulles Intl

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 2 July 2025.

Sun 5-1022:10SIN - IAD
2 stops35h 15mAir Canada
Sat 18-1017:37IAD - SIN
2 stops49h 28mAir Canada
Deal found 30-6S$ 1,023
Wed 8-1011:05SIN - IAD
1 stop35h 00mUnited Airlines
Mon 3-1106:30IAD - SIN
2 stops36h 30mUnited Airlines
Deal found 30-6S$ 1,126
Sun 5-1011:05SIN - IAD
1 stop35h 00mANA
Sat 18-1013:20IAD - SIN
2 stops29h 20mANA
Deal found 1-7S$ 1,168
Sun 5-1010:15SIN - IAD
1 stop37h 30mTurkish Airlines
Sat 18-1021:40IAD - SIN
1 stop32h 15mTurkish Airlines
Deal found 2-7S$ 1,319
Wed 15-1023:00SIN - IAD
1 stop44h 40mAir India
Wed 22-1011:00IAD - SIN
1 stop32h 15mAir India
Deal found 30-6S$ 1,360
Sun 5-1022:10SIN - IAD
2 stops35h 15mMultiple Airlines
Sat 18-1013:30IAD - SIN
1 stop40h 25mMultiple Airlines
Deal found 30-6S$ 1,371
Thu 24-719:45SIN - IAD
2 stops36h 00mIndiGo
Wed 6-813:30IAD - SIN
2 stops39h 50mIndiGo
Deal found 30-6S$ 1,413

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 2 July 2025.
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

Singapore

Fly to

Dulles Intl

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

22:10-21:25

2 stops35h 15m

Washington, D.C. Dulles Intl

Sat 18-10

17:37-07:05

2 stops49h 28m

S$ 1,023

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 8-10

11:05-10:05

1 stop35h 00m

Washington, D.C. Dulles Intl

Mon 3-11

06:30-08:00

2 stops36h 30m

S$ 1,126

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

11:05-10:05

1 stop35h 00m

Washington, D.C. Dulles Intl

Sat 18-10

13:20-06:40

2 stops29h 20m

S$ 1,168

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

10:15-11:45

1 stop37h 30m

Washington, D.C. Dulles Intl

Sat 18-10

21:40-17:55

1 stop32h 15m

S$ 1,319

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 15-10

23:00-07:40

1 stop44h 40m

Washington, D.C. Dulles Intl

Wed 22-10

11:00-07:15

1 stop32h 15m

S$ 1,360

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

22:10-21:25

2 stops35h 15m

Washington, D.C. Dulles Intl

Sat 18-10

13:30-17:55

1 stop40h 25m

S$ 1,371

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 24-7

19:45-19:45

2 stops36h 00m

Washington, D.C. Dulles Intl

Wed 6-8

13:30-17:20

2 stops39h 50m

S$ 1,413

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 20-11

23:55-18:30

1 stop31h 35m

S$ 575

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 20-11

10:00-11:45

2 stops38h 45m

S$ 611

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 13-9

08:45-16:10

2 stops43h 25m

S$ 726

Flights are sorted by cheapest return flights first.

Deals found on 1-7

Showing 1-10 of 15 results
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

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

Use this chart to determine the optimal time to book a return flight from Singapore to Dulles Intl. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight from Singapore to Washington, D.C. Dulles Intl Airport, you should look to book at least 78 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.

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 2 July 2025.
Get a feel of what it's like to fly with EVA Air, ANA, andChina 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.

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
8.4
Very Good

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 6 different airlines.

  • 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 Air Canada. Our recent data shows that you can find tickets from as low as S$ 1,023 on this airline. Additional options worth looking into are United Airlines and ANA, starting at S$ 1,126 and S$ 1,168 round-trip. Users have found that Air Canada is 39% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Singapore to Washington, D.C. Dulles Intl Airport one-way?

    To fly one-way, consider booking your trip with Air China, which is currently one of the cheapest options available, starting at S$ 575. Air Canada flights start at S$ 611 while deals on IndiGo start at S$ 740 one-way.

  • 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 2 July 2025.

Top 6 airlines flying from Singapore to Dulles Intl

Discover the top 6 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 2 July 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapestS$ 939AverageS$ 1,103FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Turkish AirlinesCheapestS$ 1,228AverageS$ 1,435FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
United AirlinesCheapestS$ 1,260AverageS$ 1,578FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air IndiaCheapestS$ 1,312AverageS$ 1,403FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Korean AirCheapestS$ 1,605AverageS$ 2,204FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Qatar AirwaysCheapestS$ 1,758AverageS$ 2,184FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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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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