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$419+ Cheap flights from Dulles Intl (IAD) to Singapore

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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Dulles Intl to Singapore

Keep the following information in mind while searching for Dulles Intl to Singapore flight deals. Data was last updated July 31, 2025.

Round-trip from

$795
(oojo)

One-way from

$419
(oojo)

Popular in

December

Cheapest in

October

Average price

$1,408
From Washington, D.C. Dulles Intl to Singapore
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One-way flight from Washington, D.C. Dulles Intl to Singapore
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Highest demand for flights based on searches. 7% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This IEagle deal was found by Cheapflights users on 7/31. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/911:00 amIAD - SIN
1 stop31h 00mAir India
Sun 11/2311:00 pmSIN - IAD
1 stop44h 50mAir India
Deal found 7/31$806
This CrystalTravel deal was found by Cheapflights users on 7/30. 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.
Thu 9/1110:05 pmIAD - SIN
1 stop23h 35mEtihad Airways
Tue 9/309:10 pmSIN - IAD
1 stop31h 00mEtihad Airways
Deal found 7/30$834
This Gotogate deal was found by Cheapflights users on 7/30. 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.
Wed 9/1010:05 pmIAD - SIN
1 stop23h 35mMultiple Airlines
Thu 9/257:45 pmSIN - IAD
2 stops36h 00mMultiple Airlines
Deal found 7/30$864
This Booking.com deal was found by Cheapflights users on 7/29. 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.
Sun 9/219:40 pmIAD - SIN
2 stops32h 05mIndiGo
Sun 9/287:45 pmSIN - IAD
2 stops36h 00mIndiGo
Deal found 7/29$883
This CheapOair deal was found by Cheapflights users on 7/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:55 amIAD - SIN
2 stops33h 05mAir Canada
Tue 11/118:50 amSIN - IAD
2 stops25h 09mAir Canada
Deal found 7/30$903

Cheapflights Fare Finder

 
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 July 31, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Singapore that are best for you.

Fly from

Dulles Intl

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8/25

12:50 pm-9:45 pm

1 stop44h 55m

Singapore Changi

Mon 9/1

11:00 pm-7:40 am

1 stop44h 40m

$795

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 9/11

10:05 pm-9:40 am

1 stop23h 35m

Singapore Changi

Tue 9/30

9:10 pm-4:10 pm

1 stop31h 00m

$834

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9/10

10:05 pm-9:40 am

1 stop23h 35m

Singapore Changi

Thu 9/25

7:45 pm-7:45 pm

2 stops36h 00m

$864

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 9/7

1:30 pm-5:20 pm

2 stops39h 50m

Singapore Changi

Tue 9/23

7:45 pm-7:45 pm

2 stops36h 00m

$883

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 10/29

9:55 am-7:00 am

2 stops33h 05m

Singapore Changi

Tue 11/11

8:50 am-8:59 pm

2 stops25h 09m

$903

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8/11

10:05 pm-9:40 am

1 stop23h 35m

$419

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 9/27

9:40 pm-5:45 pm

2 stops32h 05m

$424

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8/25

12:50 pm-8:30 am

3 stops31h 40m

$476

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 10/2

1:30 pm-5:55 pm

1 stop40h 25m

$490

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 10/12

11:00 am-9:45 pm

1 stop22h 45m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 11 results
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Singapore

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $995). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,679). 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 SG?

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 July 31, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Singapore, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 31, 2025.
See what other customers who have flown with Alaska Airlines, Etihad Airways, and Turkish Airlines from Washington, D.C. Dulles Intl Airport to Singapore have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Etihad Airways
7.4
Good
1,230 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Turkish Airlines
7.3
Good
3,933 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Air Canada
7.1
Good
9,851 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
IndiGo
6.8
Okay
478 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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

    For one-way options, check prices for Air India. According to our data, you can fly for as low as $419. Users have also found prices from $424 and $425 on IndiGo and Etihad Airways, respectively.

  • 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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $995). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,679). 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.
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Baltimore to Bangalore flights
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Reagan-National to Incheon Intl flights
Baltimore to Ho Chi Minh City flights
Reagan-National to Ho Chi Minh City flights
Dulles Intl to Gimpo Intl flights
Dulles Intl to Chennai flights
Dulles Intl to Islamabad flights
Baltimore to Incheon Intl flights
Dulles Intl to Kathmandu flights
Baltimore to Hong Kong flights
Reagan-National to Taiwan Taoyuan Intl flights
Baltimore to Taiwan Taoyuan Intl flights
Dulles Intl to Denpasar flights
Dulles Intl to Dhaka flights
Reagan-National to Hongqiao Intl flights
Dulles Intl to Capital flights
Dulles Intl to Hong Kong flights
Baltimore to Denpasar flights
Reagan-National to Denpasar flights
Reagan-National to Chennai flights

Top 10 airlines flying from Dulles Intl to Singapore

Discover the top 10 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$807Average$996FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$826Average$960FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$828Average$964FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$935Average$1,413FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$938Average$1,526FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$944Average$1,199FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$996Average$1,265FlexibilityNo cancel feeOn-time68%
JetBlueCheapest$1,024Average$1,139FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$1,066Average$1,128FlexibilityNo cancel feeOn-time75%
Singapore AirlinesCheapest$1,097Average$1,757FlexibilityNo cancel feeOn-time81%

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