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Dulles Intl

$401+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$643
(Gotogate)

One-way from

$401
(FlightHub)

Popular in

July

Cheapest in

August

Average price

$1,158
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. 2% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($23 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 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 March 28, 2025.

This Gotogate deal was found by Cheapflights users on 3/27. 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 4/233:45 amSIN - IAD
1 stop24h 00mSAUDIA
Sat 5/106:50 pmIAD - SIN
1 stop32h 55mSAUDIA
Deal found 3/27$643
This Gotogate deal was found by Cheapflights users on 3/27. 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 4/233:45 amSIN - IAD
1 stop24h 00mMultiple Airlines
Sat 5/101:30 pmIAD - SIN
2 stops39h 50mMultiple Airlines
Deal found 3/27$934
This Air Canada deal was found by Cheapflights users on 3/27. 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 5/139:10 amSIN - IAD
2 stops36h 29mAir Canada
Thu 8/79:45 amIAD - SIN
2 stops33h 20mAir Canada
Deal found 3/27$945
This oojo deal was found by Cheapflights users on 3/27. 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 5/279:00 amSIN - IAD
1 stop34h 40mAir India
Fri 8/2211:00 amIAD - SIN
1 stop22h 45mAir India
Deal found 3/27$1,027
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Thu 5/1511:05 amSIN - IAD
1 stop35h 00mUnited Airlines
Wed 8/610:15 pmIAD - SIN
3 stops56h 10mUnited Airlines
Deal found 3/26$1,044
This lol.travel deal was found by Cheapflights users on 3/27. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2411:30 pmSIN - IAD
1 stop28h 45mSWISS
Sat 5/108:45 pmIAD - SIN
1 stop32h 20mSWISS
Deal found 3/27$1,161
This Booking.com deal was found by Cheapflights users on 3/26. 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.
Sat 8/27:45 pmSIN - IAD
2 stops36h 00mIndiGo
Sat 8/91:30 pmIAD - SIN
2 stops39h 50mIndiGo
Deal found 3/26$1,172
This American Airlines deal was found by Cheapflights users on 3/26. 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.
Mon 5/121:55 amSIN - IAD
2 stops26h 22mAmerican Airlines
Wed 8/67:07 amIAD - SIN
2 stops29h 13mAmerican Airlines
Deal found 3/26$1,205
This KAYAK deal was found by Cheapflights users on 3/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1511:25 pmSIN - IAD
1 stop32h 05mAir China
Fri 8/811:00 pmIAD - SIN
1 stop34h 55mAir China
Deal found 3/27$1,241
This Jettzy deal was found by Cheapflights users on 3/27. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/149:10 pmSIN - IAD
1 stop31h 00mEtihad Airways
Thu 8/710:05 pmIAD - SIN
1 stop23h 35mEtihad Airways
Deal found 3/27$1,296
This British Airways deal was found by Cheapflights users on 3/27. 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.
Wed 5/1411:20 pmSIN - IAD
1 stop28h 25mBritish Airways
Mon 8/1110:40 pmIAD - SIN
1 stop31h 20mBritish Airways
Deal found 3/27$1,299
This Qatar Airways deal was found by Cheapflights users on 3/27. 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 stop41h 10mQatar Airways
Thu 8/711:00 amIAD - SIN
1 stop22h 00mQatar Airways
Deal found 3/27$1,310

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 March 28, 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

Wed 4/23

3:45 am-3:45 pm

1 stop24h 00m

Washington, D.C. Dulles Intl

Sat 5/10

6:50 pm-3:45 pm

1 stop32h 55m

$643

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 4/23

3:45 am-3:45 pm

1 stop24h 00m

Washington, D.C. Dulles Intl

Sat 5/10

1:30 pm-5:20 pm

2 stops39h 50m

$934

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 5/13

9:10 am-9:39 am

2 stops36h 29m

Washington, D.C. Dulles Intl

Thu 8/7

9:45 am-7:05 am

2 stops33h 20m

$945

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 5/27

9:00 am-7:40 am

1 stop34h 40m

Washington, D.C. Dulles Intl

Fri 8/22

11:00 am-9:45 pm

1 stop22h 45m

$1,027

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 5/15

11:05 am-10:05 am

1 stop35h 00m

Washington, D.C. Dulles Intl

Wed 8/6

10:15 pm-6:25 pm

3 stops56h 10m

$1,044

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 4/24

11:30 pm-4:15 pm

1 stop28h 45m

Washington, D.C. Dulles Intl

Sat 5/10

8:45 pm-5:05 pm

1 stop32h 20m

$1,161

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 8/2

7:45 pm-7:45 pm

2 stops36h 00m

Washington, D.C. Dulles Intl

Sat 8/9

1:30 pm-5:20 pm

2 stops39h 50m

$1,172

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 5/12

1:55 am-4:17 pm

2 stops26h 22m

Washington, D.C. Dulles Intl

Wed 8/6

7:07 am-12:20 am

2 stops29h 13m

$1,205

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 5/15

11:25 pm-7:30 pm

1 stop32h 05m

Washington, D.C. Dulles Intl

Fri 8/8

11:00 pm-9:55 pm

1 stop34h 55m

$1,241

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 5/14

9:10 pm-4:10 pm

1 stop31h 00m

Washington, D.C. Dulles Intl

Thu 8/7

10:05 pm-9:40 am

1 stop23h 35m

$1,296

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 39 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 $385). 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 March 28, 2025.
Read through reviews of airlines operating flights from Singapore to Washington, D.C., such as Korean Air, Singapore 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
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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
1,050 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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.
Singapore Airlines
8.1
Very good
1,285 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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
3,190 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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
7,897 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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
1,321 reviews
Korean Air
8.4
Very good
1,050 reviews

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

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 ($401), IndiGo ($565), and Air China ($646).

  • 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 $385). 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.
Hyderabad to Dulles Intl flights
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Bangalore to Baltimore flights
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Kathmandu to Reagan-National flights
Bangalore to Reagan-National flights
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Kuala Lumpur Intl to Baltimore flights
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Kuala Lumpur Intl to Reagan-National flights
Ahmedabad to Reagan-National flights
Hongqiao Intl to Dulles Intl flights
Capital to Dulles Intl flights
Narita to Reagan-National flights
Suvarnabhumi to Baltimore flights
Chennai to Reagan-National flights
Chennai to Baltimore flights
Haneda to Reagan-National flights
Manila to Reagan-National flights
Suvarnabhumi to Reagan-National flights
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Top 2 airlines flying from Singapore to Dulles Intl

Discover the top 2 airlines 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,007Average$1,494FlexibilityNo cancel feeOn-time69%
Qatar AirwaysCheapest$1,333Average$1,372FlexibilityNo cancel feeOn-time68%
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