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$472+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
Jul 5 — Jul 121
Sun 7/5
Sun 7/12
1 adult, Economy
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Cheap 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 June 5, 2026.

This oojo deal was found by Cheapflights users on 6/4. 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.
Tue 11/35:14 pm
IAD
-
SIN
1 stop35h 31m
Singapore Airlines
Tue 11/179:00 am
SIN
-
IAD
1 stop33h 51m
Singapore Airlines
Deal found 6/4$987
This Trip.com deal was found by Cheapflights users on 6/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/313:10 pm
IAD
-
SIN
1 stop30h 30m
Multiple Airlines
Mon 9/75:55 pm
SIN
-
IAD
1 stop37h 35m
Multiple Airlines
Deal found 6/3$1,042
This oojo deal was found by Cheapflights users on 6/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:46 am
IAD
-
SIN
1 stop44h 59m
Singapore Airlines
Sat 11/149:00 am
SIN
-
IAD
1 stop33h 51m
Singapore Airlines
Deal found 6/2$1,044
This oojo deal was found by Cheapflights users on 6/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:10 pm
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Wed 9/239:00 pm
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 6/2$1,050
This CheapOair deal was found by Cheapflights users on 6/4. 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.
Sun 8/233:10 pm
IAD
-
SIN
1 stop30h 30m
Multiple Airlines
Thu 9/35:55 pm
SIN
-
IAD
1 stop37h 35m
Multiple Airlines
Deal found 6/4$1,089
This oojo deal was found by Cheapflights users on 6/4. 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.
Mon 11/162:35 pm
IAD
-
SIN
1 stop30h 00m
Etihad Airways
Tue 12/157:25 pm
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 6/4$1,091
This Etihad Airways deal was found by Cheapflights users on 6/5. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:10 pm
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Wed 10/287:25 pm
SIN
-
IAD
1 stop26h 40m
Etihad Airways
Deal found 6/5$1,103
This Air Canada deal was found by Cheapflights users on 6/4. 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.
Tue 11/39:55 am
IAD
-
SIN
2 stops32h 05m
Air Canada
Tue 11/178:50 am
SIN
-
IAD
2 stops24h 33m
Air Canada
Deal found 6/4$1,104
This Justfly.com deal was found by Cheapflights users on 6/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:15 am
IAD
-
SIN
2 stops33h 00m
Air Canada
Thu 9/247:00 am
SIN
-
IAD
2 stops40h 44m
Air Canada
Deal found 6/5$1,107

Find 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 June 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,042
(Trip.com)

One-way from

$472
(oojo)

Popular in

December

Cheapest in

August

Average price

$1,547
Provider with most accurate pricing for Washington, D.C. (WAS)-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Singapore Changi flights.
Search Deals
From Washington, D.C. Dulles Intl to Singapore
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Singapore
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($190 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($71 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 5, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 8/6

1:20 pm-11:10 am

1 stop33h 50m

Singapore Changi

Fri 8/14

10:25 am-11:35 am

1 stop37h 10m

$1,315

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 7/8

9:00 pm-9:15 pm

1 stop36h 15m

Singapore Changi

Sun 7/19

9:15 pm-3:40 pm

2 stops30h 25m

$1,440

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 8/2

9:00 pm-3:45 pm

1 stop30h 45m

Singapore Changi

Thu 8/20

3:15 am-3:40 pm

1 stop24h 25m

$1,541
Quickest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 8/6

11:05 am-9:15 pm

1 stop22h 10m

Singapore Changi

Sun 8/16

3:15 am-3:40 pm

1 stop24h 25m

$1,598

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 8/4

11:05 am-9:15 pm

1 stop22h 10m

Singapore Changi

Mon 8/17

3:15 am-3:40 pm

1 stop24h 25m

$1,598

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 7/27

9:00 pm-9:15 pm

1 stop36h 15m

Singapore Changi

Thu 8/6

3:15 am-3:40 pm

1 stop24h 25m

$1,627

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 8/5

10:55 am-8:30 pm

2 stops45h 35m

Singapore Changi

Mon 8/24

9:30 pm-8:40 am

2 stops47h 10m

$1,632

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 8/6

11:05 am-9:15 pm

1 stop22h 10m

Singapore Changi

Sat 8/22

7:40 pm-3:40 pm

1 stop32h 00m

$1,638

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 7/5

9:00 pm-9:15 pm

1 stop36h 15m

Singapore Changi

Thu 7/16

3:15 am-8:45 am

1 stop41h 30m

$1,649

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 7/31

9:00 pm-3:45 pm

1 stop30h 45m

Singapore Changi

Sun 8/2

3:15 am-8:45 am

1 stop41h 30m

$1,656

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/1

Showing 1-10 of 23 resultsSorted by cheapest first
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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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $698). Flying from Washington, D.C. Dulles Intl Airport to Singapore in January is currently the most expensive (average of $1,174). 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.

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

Booking 88 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.

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 June 5, 2026.
See what other customers who have flown with Qatar Airways,Turkish Airlines, andUnited 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.
Qatar Airways
7.4
Good
3,731 reviews

Overall

7.4

Entertainment

7.3

Boarding

7.5

Food

7.3

Comfort

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Qatar Airways
7.4
Good
3,731 reviews
Qatar Airways
7.4
Good
3,731 reviews

Overall

7.4

Entertainment

7.3

Boarding

7.5

Food

7.3

Comfort

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Turkish Airlines
7.4
Good
4,411 reviews
Qatar Airways
7.4
Good
3,731 reviews

Overall

7.4

Entertainment

7.3

Boarding

7.5

Food

7.3

Comfort

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
United Airlines
7.4
Good
9,778 reviews
Qatar Airways
7.4
Good
3,731 reviews

Overall

7.4

Entertainment

7.3

Boarding

7.5

Food

7.3

Comfort

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Etihad Airways
7.3
Good
1,448 reviews
Qatar Airways
7.4
Good
3,731 reviews

Overall

7.4

Entertainment

7.3

Boarding

7.5

Food

7.3

Comfort

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
JetBlue
7.1
Good
2,982 reviews
Qatar Airways
7.4
Good
3,731 reviews

Overall

7.4

Entertainment

7.3

Boarding

7.5

Food

7.3

Comfort

7.3

Crew

7.9

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Singapore?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Singapore in 33h 50m. Fly via Turkish Airlines or Qatar Airways to get the fastest option. Airlines will cover a distance of 9644 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $473. Users have also found prices from $481 and $485 on Etihad Airways and Qatar 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $698). Flying from Washington, D.C. Dulles Intl Airport to Singapore in January is currently the most expensive (average of $1,174). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Dulles Intl to Singapore

Discover the top 6 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 June 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$743Average$1,328FlexibilityNo cancel feeOn-time81%
Etihad AirwaysCheapest$828Average$990FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$939Average$1,116FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,041Average$1,349FlexibilityNo cancel feeOn-time68%
United AirlinesCheapest$1,124Average$1,434FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$1,245Average$2,103FlexibilityNo cancel feeOn-time62%

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