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Dulles Intl

$414+ Cheap flights from Singapore 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from Singapore to Dulles Intl

Keep the following information in mind while searching for Singapore to Dulles Intl flight deals. Data was last updated April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,051
(Air Canada)

One-way from

$414
(oojo)

Popular in

July

Cheapest in

August

Average price

$1,201
Provider with most accurate pricing for Singapore Changi-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Singapore Changi-Washington, D.C. (WAS) flights.
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From Singapore to Washington, D.C. Dulles Intl
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One-way flight from Singapore to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 1% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/59:10 amSIN - IAD
2 stops36h 28mAir Canada
Sun 10/191:00 pmIAD - SIN
2 stops30h 05mAir Canada
Deal found 4/29$1,051
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3011:00 pmSIN - IAD
1 stop44h 40mAir India
Fri 8/811:00 amIAD - SIN
1 stop32h 30mAir India
Deal found 4/29$1,066
This China Airlines deal was found by Cheapflights users on 4/29. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/161:45 pmSIN - IAD
2 stops29h 05mMultiple Airlines
Thu 7/107:59 pmIAD - SIN
2 stops28h 36mMultiple Airlines
Deal found 4/29$1,078
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1611:05 amSIN - IAD
1 stop40h 40mUnited Airlines
Thu 7/1010:19 pmIAD - SIN
2 stops32h 06mUnited Airlines
Deal found 4/29$1,137
This Gurufare deal was found by Cheapflights users on 4/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2011:30 pmSIN - IAD
2 stops32h 30mSWISS
Wed 8/275:45 pmIAD - SIN
1 stop25h 10mSWISS
Deal found 4/29$1,230
This SAUDIA deal was found by Cheapflights users on 4/29. 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 SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/302:30 amSIN - IAD
1 stop25h 15mSAUDIA
Thu 7/176:50 pmIAD - SIN
1 stop80h 55mSAUDIA
Deal found 4/29$1,297
This British Airways deal was found by Cheapflights users on 4/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/211:20 pmSIN - IAD
1 stop32h 50mBritish Airways
Mon 6/3010:40 pmIAD - SIN
1 stop29h 25mBritish Airways
Deal found 4/29$1,313
This Qatar Airways deal was found by Cheapflights users on 4/29. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1410:30 amSIN - IAD
1 stop34h 10mQatar Airways
Thu 8/711:00 amIAD - SIN
1 stop22h 00mQatar Airways
Deal found 4/29$1,322
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/19:10 pmSIN - IAD
1 stop31h 00mEtihad Airways
Thu 7/1710:05 pmIAD - SIN
1 stop23h 35mEtihad Airways
Deal found 4/29$1,391
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/131:10 amSIN - IAD
1 stop22h 05mDelta
Thu 8/76:00 amIAD - SIN
2 stops35h 00mDelta
Deal found 4/29$1,492
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/221:10 amSIN - IAD
1 stop22h 05mKorean Air
Thu 7/31:30 pmIAD - SIN
1 stop22h 10mKorean Air
Deal found 4/29$1,548
This Emirates deal was found by Cheapflights users on 4/29. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/3012:50 amSIN - IAD
1 stop43h 50mEmirates
Fri 7/1810:55 amIAD - SIN
1 stop22h 50mEmirates
Deal found 4/29$1,555

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 30, 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

Sun 10/5

9:10 am-9:38 am

2 stops36h 28m

Washington, D.C. Dulles Intl

Sun 10/19

1:00 pm-7:05 am

2 stops30h 05m

$1,051

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 7/30

11:00 pm-7:40 am

1 stop44h 40m

Washington, D.C. Dulles Intl

Fri 8/8

11:00 am-7:30 am

1 stop32h 30m

$1,066

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 6/16

1:45 pm-6:50 am

2 stops29h 05m

Washington, D.C. Dulles Intl

Thu 7/10

7:59 pm-12:35 pm

2 stops28h 36m

$1,078

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 6/16

11:05 am-3:45 pm

1 stop40h 40m

Washington, D.C. Dulles Intl

Thu 7/10

10:19 pm-6:25 pm

2 stops32h 06m

$1,137

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 6/20

11:30 pm-8:00 pm

2 stops32h 30m

Washington, D.C. Dulles Intl

Wed 8/27

5:45 pm-6:55 am

1 stop25h 10m

$1,230

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 6/30

2:30 am-3:45 pm

1 stop25h 15m

Washington, D.C. Dulles Intl

Thu 7/17

6:50 pm-3:45 pm

1 stop80h 55m

$1,297

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 6/2

11:20 pm-8:10 pm

1 stop32h 50m

Washington, D.C. Dulles Intl

Mon 6/30

10:40 pm-4:05 pm

1 stop29h 25m

$1,313

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 5/14

10:30 am-8:40 am

1 stop34h 10m

Washington, D.C. Dulles Intl

Thu 8/7

11:00 am-9:00 pm

1 stop22h 00m

$1,322

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 7/1

9:10 pm-4:10 pm

1 stop31h 00m

Washington, D.C. Dulles Intl

Thu 7/17

10:05 pm-9:40 am

1 stop23h 35m

$1,391

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 5/13

1:10 am-11:15 am

1 stop22h 05m

Washington, D.C. Dulles Intl

Thu 8/7

6:00 am-5:00 am

2 stops35h 00m

$1,492

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 31 results
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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

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 $373). 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 30, 2025.
Read through reviews of airlines operating flights from Singapore to Washington, D.C., such as Korean Air, China Airlines and Emirates. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,066 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very good
732 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Emirates
8.0
Very good
3,213 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,929 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
KLM
7.8
Good
1,334 reviews
Korean Air
8.4
Very good
1,066 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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 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 ($414), IndiGo ($551), 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 $373). 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?

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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.
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Singapore to Dulles Intl flights
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Manila to Reagan-National flights
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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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,333Average$1,372FlexibilityNo cancel feeOn-time68%

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