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Dulles Intl

$406+ Cheap flights from Singapore (SIN) to Dulles Intl (IAD)

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Singapore Changi to Washington, D.C. Dulles Intl are usually found in June or March, booked 78 days in advance, depart on a Friday or Tuesday and return on a Friday

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 April 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$921
(SAUDIA)

One-way from

$406
(Mytrip)

Popular in

May

Cheapest in

June

Average price

$1,182
Provider with most accurate pricing for Singapore Changi-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Singapore Changi-Washington, D.C. Dulles Intl flights.
Search Deals
From Singapore Changi to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Singapore Changi to Washington, D.C. Dulles Intl
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 17, 2025.

This SAUDIA deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/32:30 amSIN - IAD
1 stop49h 15mSAUDIA
Sun 10/196:50 pmIAD - SIN
1 stop56h 55mSAUDIA
Deal found 4/17$921
This Air Canada deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/511:55 pmSIN - IAD
2 stops33h 10mAir Canada
Sun 10/195:10 pmIAD - SIN
2 stops43h 35mAir Canada
Deal found 4/17$925
This China Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/262:00 amSIN - IAD
2 stops51h 15mMultiple Airlines
Fri 8/228:29 pmIAD - SIN
2 stops28h 06mMultiple Airlines
Deal found 4/17$975
This Gotogate deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/278:30 pmSIN - IAD
1 stop23h 10mAir India
Fri 8/2211:00 amIAD - SIN
1 stop22h 45mAir India
Deal found 4/17$1,038
This Gotogate deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2310:15 amSIN - IAD
1 stop45h 30mTurkish Airlines
Fri 5/309:40 pmIAD - SIN
1 stop23h 05mTurkish Airlines
Deal found 4/17$1,074
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:40 pmSIN - IAD
2 stops27h 15mUnited Airlines
Sun 10/1912:25 pmIAD - SIN
1 stop30h 15mUnited Airlines
Deal found 4/17$1,136
This SWISS deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:30 pmSIN - IAD
2 stops56h 55mSWISS
Sat 6/78:45 pmIAD - SIN
1 stop32h 20mSWISS
Deal found 4/16$1,253
This Lufthansa deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2710:55 amSIN - IAD
1 stop40h 20mLufthansa
Mon 2/25:45 pmIAD - SIN
1 stop24h 10mLufthansa
Deal found 4/17$1,281
This KAYAK deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/299:10 pmSIN - IAD
1 stop31h 00mEtihad Airways
Tue 2/39:30 pmIAD - SIN
1 stop22h 35mEtihad Airways
Deal found 4/17$1,337
This British Airways deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3111:20 pmSIN - IAD
1 stop32h 50mBritish Airways
Sun 2/19:55 pmIAD - SIN
1 stop31h 30mBritish Airways
Deal found 4/17$1,341
This CheapTickets deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/133:10 amSIN - IAD
1 stop24h 30mQatar Airways
Thu 8/711:00 amIAD - SIN
1 stop22h 00mQatar Airways
Deal found 4/17$1,345
This KAYAK deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/121:10 amSIN - IAD
1 stop22h 05mKorean Air
Thu 8/71:30 pmIAD - SIN
1 stop22h 10mKorean Air
Deal found 4/17$1,380

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated April 17, 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

Fri 10/3

2:30 am-3:45 pm

1 stop49h 15m

Washington, D.C. Dulles Intl

Sun 10/19

6:50 pm-3:45 pm

1 stop56h 55m

$921

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 10/5

11:55 pm-9:05 pm

2 stops33h 10m

Washington, D.C. Dulles Intl

Sun 10/19

5:10 pm-12:45 am

2 stops43h 35m

$925

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 5/26

2:00 am-5:15 pm

2 stops51h 15m

Washington, D.C. Dulles Intl

Fri 8/22

8:29 pm-12:35 pm

2 stops28h 06m

$975

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 5/27

8:30 pm-7:40 am

1 stop23h 10m

Washington, D.C. Dulles Intl

Fri 8/22

11:00 am-9:45 pm

1 stop22h 45m

$1,038

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 5/23

10:15 am-7:45 pm

1 stop45h 30m

Washington, D.C. Dulles Intl

Fri 5/30

9:40 pm-8:45 am

1 stop23h 05m

$1,074

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 10/4

8:40 pm-11:55 am

2 stops27h 15m

Washington, D.C. Dulles Intl

Sun 10/19

12:25 pm-6:40 am

1 stop30h 15m

$1,136

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 5/31

6:30 pm-3:25 pm

2 stops56h 55m

Washington, D.C. Dulles Intl

Sat 6/7

8:45 pm-5:05 pm

1 stop32h 20m

$1,253

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 7/27

10:55 am-3:15 pm

1 stop40h 20m

Washington, D.C. Dulles Intl

Mon 2/2

5:45 pm-6:55 am

1 stop24h 10m

$1,281

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 7/29

9:10 pm-4:10 pm

1 stop31h 00m

Washington, D.C. Dulles Intl

Fri 2/6

9:30 pm-9:05 am

1 stop22h 35m

$1,337

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 7/31

11:20 pm-8:10 pm

1 stop32h 50m

Washington, D.C. Dulles Intl

Tue 2/3

6:15 pm-3:55 pm

1 stop32h 40m

$1,341

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 32 results
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Compare providers for flights from Singapore to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Singapore to Dulles Intl in April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Singapore-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Singapore-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Singapore-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Singapore-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Singapore-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Singapore to Dulles Intl. Price data was last updated on April 11, 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.

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

Currently, August is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Singapore to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 17, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air and ANA from Singapore to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,177 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.
EVA Air
8.4
Very good
1,177 reviews
EVA Air
8.4
Very good
1,177 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.
Korean Air
8.4
Very good
1,064 reviews
EVA Air
8.4
Very good
1,177 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.
ANA
8.3
Very good
844 reviews
EVA Air
8.4
Very good
1,177 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.
China Airlines
8.2
Very good
729 reviews
EVA Air
8.4
Very good
1,177 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.
Emirates
8.0
Very good
3,200 reviews
EVA Air
8.4
Very good
1,177 reviews

Boarding

8.4

Entertainment

8.0

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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?

    If you book a flight to Washington, D.C. Dulles Intl from Singapore, you will be flying from Changi, which is the city’s only airport. Singapore Changi (SIN) is located 10.5 mi from the center of Singapore. There are 0 flights from Changi to Washington, D.C. Dulles Intl per day from 2 different airlines.

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

    According to our current data, SAUDIA ($921), Air Canada ($925), and Air India ($1,038) offers the cheapest pricing from Singapore to Washington, D.C. Dulles Intl Airport. SAUDIA is 29% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from Singapore to Washington, D.C. Dulles Intl Airport are SAUDIA ($406), Air China ($639), and EVA Air ($700).

  • 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 vacation 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, August is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Singapore to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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

Traveling to a place near Singapore?

Book flights to Singapore if you plan to visit one of these locations
Arlington
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Alternative routes for Singapore to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Singapore to Baltimore flights
Singapore to Reagan-National flights

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 2,558,603 searches. Data last updated April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,007Average$1,494FlexibilityNo cancel feeOn-time69%
Qatar AirwaysCheapest$1,333Average$1,372FlexibilityNo cancel feeOn-time68%

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