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$459+ Cheap flights from Dulles Intl (IAD) to Singapore (SIN)

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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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The best prices from Washington, D.C. Dulles Intl to Singapore Changi are usually found in November or January, booked 56 days in advance, depart on a Friday or Sunday and return on a Friday

Cheap flight deals from Dulles Intl to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Singapore (SIN). 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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$923
(oojo)

One-way from

$461
(oojo)

Popular in

December

Cheapest in

November

Average price

$1,045
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Singapore Changi flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Singapore Changi flights.
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From Washington, D.C. Dulles Intl to Singapore Changi
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One-way flight from Washington, D.C. Dulles Intl to Singapore Changi
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Dulles Intl to Singapore

Cheapest flights from Dulles Intl to Singapore
Explore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.

This oojo deal was found by Cheapflights users on 3/3. 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.
Wed 4/29:40 pmIAD - SIN
1 stop21h 50mTurkish Airlines
Tue 4/811:10 pmSIN - IAD
1 stop23h 35mTurkish Airlines
Deal found 3/3$923
This Ovago deal was found by Cheapflights users on 3/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:00 pmIAD - SIN
1 stop24h 50mAir China
Fri 5/211:25 pmSIN - IAD
1 stop28h 15mAir China
Deal found 3/3$924
This Etihad Airways deal was found by Cheapflights users on 3/2. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1810:05 pmIAD - SIN
2 stops25h 25mMultiple Airlines
Mon 9/299:10 pmSIN - IAD
1 stop31h 00mMultiple Airlines
Deal found 3/2$938
This FlightHub deal was found by Cheapflights users on 3/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/36:10 pmIAD - SIN
2 stops32h 20mSAUDIA
Mon 3/175:00 pmSIN - IAD
1 stop34h 45mSAUDIA
Deal found 3/3$959
This Air Canada deal was found by Cheapflights users on 3/3. 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.
Sat 3/293:55 pmIAD - SIN
2 stops51h 10mAir Canada
Sat 5/39:10 amSIN - IAD
2 stops34h 45mAir Canada
Deal found 3/3$964
This CrystalTravel deal was found by Cheapflights users on 3/3. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/19:00 pmIAD - SIN
1 stop24h 00mQatar Airways
Sun 5/113:10 amSIN - IAD
1 stop24h 30mQatar Airways
Deal found 3/3$975
This Booking.com deal was found by Cheapflights users on 3/2. 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.
Tue 4/112:30 pmIAD - SIN
2 stops40h 50mIndiGo
Tue 4/87:45 pmSIN - IAD
2 stops36h 00mIndiGo
Deal found 3/2$1,013
This Alaska Airlines deal was found by Cheapflights users on 3/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/169:00 pmIAD - SIN
1 stop29h 55mAlaska Airlines
Tue 4/223:10 amSIN - IAD
1 stop24h 30mAlaska Airlines
Deal found 3/3$1,066

Find flights from Dulles Intl to Singapore within your budget

Customize your flight search to find flights from Dulles Intl to Singapore 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 March 3, 2025.

Fly from

Dulles Intl

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 4/2

9:40 pm-7:30 am

1 stop21h 50m

Singapore Changi

Tue 4/8

11:10 pm-10:45 am

1 stop23h 35m

$923

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 4/1

6:00 pm-6:50 am

1 stop24h 50m

Singapore Changi

Fri 5/2

11:25 pm-3:40 pm

1 stop28h 15m

$924

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 3/29

3:55 pm-7:05 am

2 stops51h 10m

Singapore Changi

Sat 5/3

9:10 am-7:55 am

2 stops34h 45m

$964

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 4/1

9:00 pm-9:00 am

1 stop24h 00m

Singapore Changi

Sun 5/11

3:10 am-3:40 pm

1 stop24h 30m

$975

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 3/31

9:40 pm-7:55 am

1 stop22h 15m

Singapore Changi

Wed 4/30

3:45 am-3:45 pm

1 stop24h 00m

$979

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 4/1

12:30 pm-5:20 pm

2 stops40h 50m

Singapore Changi

Tue 4/8

7:45 pm-7:45 pm

2 stops36h 00m

$1,013

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 4/16

9:00 pm-2:55 pm

1 stop29h 55m

Singapore Changi

Tue 4/22

3:10 am-3:40 pm

1 stop24h 30m

$1,066

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 3/26

9:40 pm-2:50 pm

2 stops29h 10m

Singapore Changi

Tue 4/1

2:00 am-8:05 pm

2 stops30h 05m

$1,162

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 3/8

9:25 pm-8:45 am

1 stop22h 20m

$459

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 3/9

10:30 pm-1:20 pm

2 stops26h 50m

$484

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 19 results
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Compare providers for flights from Dulles Intl to Singapore

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 Dulles Intl to Singapore in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 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 Washington, D.C. Dulles Intl Airport-Singapore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Singapore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Singapore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Singapore flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C. Dulles Intl Airport-Singapore 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 Dulles Intl to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Dulles Intl 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.

Travel insights for flights from Dulles Intl to Singapore

Get recent, data-driven insights about flights from Dulles Intl to Singapore including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Singapore. Price data was last updated on February 28, 2025.

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $1,011). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,684). 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.

What is the cheapest time of day to fly from IAD to SIN?

Find hourly flight availability from Dulles Intl to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 3, 2025.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Singapore is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 25% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Singapore?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Singapore. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Singapore flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Singapore by month

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

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

Temperature in Singapore by month

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

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. 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 Singapore. Reviews last updated March 3, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Cathay Pacific and Qatar Airways from Washington, D.C. to Singapore by reading reviews from past customers. 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.
Alaska Airlines
8.0
Very good
9,713 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,713 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Cathay Pacific
7.5
Good
825 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Qatar Airways
7.4
Good
3,568 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

SAUDIA
7.4
Good
623 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,679 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Singapore. 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 into for flights to Singapore from Washington, D.C. Dulles Intl?

    Singapore Changi (SIN) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Singapore. You should not have trouble finding flights to Changi from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 8 airlines have flights to the Singapore airport from Washington, D.C. Dulles Intl. It is only a 10.5 mi journey from Changi (SIN) to Singapore’s city center.

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

    Turkish Airlines, at $923, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Singapore.Alternate airlines to your destination round-trip include Air China and Air Canada. Turkish Airlines is 27% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for Turkish Airlines. According to our data, you can fly for as low as $461. Users have also found prices from $499 and $534 on SAUDIA and Air India, respectively.

  • Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Singapore?

    Washington, D.C. Dulles Intl Airport to Singapore flights have a layover in Istanbul most of the time.

  • What are some popular things to do or see while on a layover in Istanbul?

    The majority of Istanbul visitors spend their time at Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani. Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani can be accessed by traveling approximately 20.8 mi, 22.3 mi, and 21.7 mi, respectively from Istanbul. Travelers can rent a car at Istanbul for an average daily rate of $27 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Singapore flights?

    Of the flights from Washington, D.C. Dulles Intl Airport to Singapore that have layovers, the fewest flights stop in Doha.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Singapore 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 Washington, D.C. Dulles Intl Airport to Singapore?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $1,011). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,684). 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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Alternative routes for Dulles Intl to Singapore

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

Top 8 airlines flying from Dulles Intl to Singapore

Discover the top 8 airlines that operate flights from Dulles Intl to Singapore. 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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$832Average$1,012FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$935Average$1,401FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,009Average$1,470FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,014Average$1,299FlexibilityNo cancel feeOn-time68%
JetBlueCheapest$1,028Average$1,192FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$1,037Average$1,276FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$1,124Average$1,487FlexibilityNo cancel feeOn-time71%
Singapore AirlinesCheapest$1,206Average$1,543FlexibilityNo cancel feeOn-time81%
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