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Dulles Intl

$499+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
may. 12 — may. 191
lun. 5/12
lun. 5/19
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 March or September, 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 mayo 7, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,052
(oojo)

One-way from

$499
(eDestinos)

Popular in

May

Cheapest in

March

Average price

$1,498
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.
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From Singapore Changi to Washington, D.C. Dulles Intl
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One-way flight from Singapore Changi to Washington, D.C. Dulles Intl
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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 mayo 7, 2025.

This oojo deal was found by Cheapflights users on 5/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/208:30 pmSIN - IAD
1 stop23h 10mAir India
mié. 8/2711:00 amIAD - SIN
1 stop32h 30mAir India
Deal found 5/7$1,052
This China Airlines deal was found by Cheapflights users on 5/6. 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.
dom. 6/12:00 amSIN - IAD
2 stops51h 15mMultiple Airlines
lun. 11/247:00 amIAD - SIN
2 stops52h 40mMultiple Airlines
Deal found 5/6$1,072
This oojo deal was found by Cheapflights users on 5/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/510:15 amSIN - IAD
1 stop45h 30mTurkish Airlines
sáb. 10/189:40 pmIAD - SIN
1 stop32h 15mTurkish Airlines
Deal found 5/6$1,075
This Booking.com deal was found by Cheapflights users on 5/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/49:10 amSIN - IAD
2 stops47h 50mAir Canada
dom. 10/192:25 pmIAD - SIN
2 stops28h 40mAir Canada
Deal found 5/7$1,111
This SAUDIA deal was found by Cheapflights users on 5/7. 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.
vie. 11/285:00 pmSIN - IAD
1 stop34h 45mSAUDIA
lun. 12/156:10 pmIAD - SIN
2 stops32h 20mSAUDIA
Deal found 5/7$1,119
This American Airlines deal was found by Cheapflights users on 5/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/21:55 amSIN - IAD
2 stops32h 35mAmerican Airlines
dom. 10/196:45 amIAD - SIN
2 stops35h 25mAmerican Airlines
Deal found 5/7$1,151
This United Airlines deal was found by Cheapflights users on 5/5. 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.
vie. 6/278:40 pmSIN - IAD
2 stops32h 50mUnited Airlines
mar. 7/812:20 pmIAD - SIN
1 stop30h 20mUnited Airlines
Deal found 5/5$1,155
This Japan Airlines deal was found by Cheapflights users on 5/6. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/11:55 amSIN - IAD
2 stops41h 41mJapan Airlines
lun. 11/247:00 amIAD - SIN
2 stops28h 50mJapan Airlines
Deal found 5/6$1,176
This Travelocity deal was found by Cheapflights users on 5/6. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/211:30 pmSIN - IAD
1 stop27h 55mSWISS
mar. 11/258:45 pmIAD - SIN
1 stop32h 05mSWISS
Deal found 5/6$1,231
This Lufthansa deal was found by Cheapflights users on 5/7. 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.
dom. 11/3010:55 amSIN - IAD
1 stop40h 40mLufthansa
dom. 12/145:15 pmIAD - SIN
1 stop24h 35mLufthansa
Deal found 5/7$1,366
This Qatar Airways deal was found by Cheapflights users on 5/6. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/193:10 amSIN - IAD
1 stop41h 30mQatar Airways
mié. 9/311:00 amIAD - SIN
1 stop22h 00mQatar Airways
Deal found 5/6$1,388
This oojo deal was found by Cheapflights users on 5/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/19:10 pmSIN - IAD
1 stop31h 00mEtihad Airways
jue. 7/1710:05 pmIAD - SIN
1 stop23h 35mEtihad Airways
Deal found 5/6$1,408

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 mayo 7, 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

vie. 6/20

8:30 pm-7:40 am

1 stop23h 10m

Washington, D.C. Dulles Intl

mié. 8/27

11:00 am-7:30 am

1 stop32h 30m

$1,052

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

dom. 6/1

2:00 am-5:15 pm

2 stops51h 15m

Washington, D.C. Dulles Intl

lun. 11/24

7:00 am-12:40 am

2 stops52h 40m

$1,072

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

dom. 10/5

10:15 am-7:45 pm

1 stop45h 30m

Washington, D.C. Dulles Intl

sáb. 10/18

9:40 pm-5:55 pm

1 stop32h 15m

$1,075

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

sáb. 10/4

9:10 am-9:00 pm

2 stops47h 50m

Washington, D.C. Dulles Intl

dom. 10/19

2:25 pm-7:05 am

2 stops28h 40m

$1,111

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

jue. 10/2

1:55 am-10:30 pm

2 stops32h 35m

Washington, D.C. Dulles Intl

dom. 10/19

6:45 am-6:10 am

2 stops35h 25m

$1,151

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

vie. 6/27

8:40 pm-5:30 pm

2 stops32h 50m

Washington, D.C. Dulles Intl

mar. 7/8

12:20 pm-6:40 am

1 stop30h 20m

$1,155

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

dom. 6/1

1:55 am-7:36 am

2 stops41h 41m

Washington, D.C. Dulles Intl

lun. 11/24

7:00 am-12:50 am

2 stops28h 50m

$1,176

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

lun. 6/2

11:30 pm-3:25 pm

1 stop27h 55m

Washington, D.C. Dulles Intl

mar. 11/25

8:45 pm-5:50 pm

1 stop32h 05m

$1,231

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

jue. 6/19

3:10 am-8:40 am

1 stop41h 30m

Washington, D.C. Dulles Intl

mié. 9/3

11:00 am-9:00 pm

1 stop22h 00m

$1,388

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

mar. 7/1

9:10 pm-4:10 pm

1 stop31h 00m

Washington, D.C. Dulles Intl

jue. 7/17

10:05 pm-9:40 am

1 stop23h 35m

$1,408

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/7

Showing 1-10 of 36 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 May.
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 May 2, 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 $371). 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 mayo 7, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air and Japan Airlines 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
1,190 reviews

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
EVA Air
8.4
Very good
1,190 reviews
EVA Air
8.4
Very good
1,190 reviews

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Korean Air
8.4
Very good
1,068 reviews
EVA Air
8.4
Very good
1,190 reviews

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Japan Airlines
8.3
Very good
1,471 reviews
EVA Air
8.4
Very good
1,190 reviews

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
China Airlines
8.3
Very good
732 reviews
EVA Air
8.4
Very good
1,190 reviews

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Emirates
8.0
Very good
3,224 reviews
EVA Air
8.4
Very good
1,190 reviews

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

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 1 airline.

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

    According to our current data, Air India ($1,052), Turkish Airlines ($1,075), and Air Canada ($1,111) offers the cheapest pricing from Singapore to Washington, D.C. Dulles Intl Airport. Air India is 19% 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 ($499), IndiGo ($537), and Air China ($651).

  • 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 $371). 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
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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 airline flying from Singapore to Dulles Intl

Discover the top airline 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 mayo 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,333Average$1,372FlexibilityNo cancel feeOn-time68%

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