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

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

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.

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).

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

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Washington, D.C. Dulles Intl Airport. Check prices with Cheapflights to find a great deal for your trip.

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

Our data shows that September tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Singapore. Users have commonly found prices around $1,264 for the month, but tickets can be as low as $604. Due to multiple factors, prepare for potentially higher prices in August.

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

It’s typically best to fly out from Singapore to Washington, D.C. Dulles Intl Airport in the morning. Doing so could potentially save you 19% on the flight price compared to flying at noon, which is usually more expensive.

What airport do you fly from for flights from Singapore to Washington, D.C. Dulles Intl?

If you book a flight to Washington, D.C. Dulles Intl from Singapore, you will be flying from Changi, which is the city’s only airport. Singapore Changi (SIN) is located 10.5 mi from the center of Singapore. There are 0 flights from Changi to Washington, D.C. Dulles Intl per day from 1 airline.

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.

$458+ Flights from Singapore to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Singapore Changi to Washington, D.C. Dulles Intl are usually found in March or February, booked 78 days in advance, depart on a Friday or Tuesday and return on a Friday

Cheap flight deals from Singapore to Dulles Intl

Round-trip from	$804 (Air Canada)
One-way from	$458 (Air China)
Popular in	July
Cheapest in	March
Average price	$1,311

From Singapore Changi to Washington, D.C. Dulles Intl

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One-way flight from Singapore Changi to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 8% potential increase in price ($118 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 30, 2025.

Sun 10/510:10 pmSIN - IAD

2 stops35h 15mAir Canada

Sat 10/185:37 pmIAD - SIN

2 stops49h 28mAir Canada

Deal found 6/30

$804

Wed 10/811:05 amSIN - IAD

1 stop35h 00mUnited Airlines

Mon 11/36:30 amIAD - SIN

2 stops36h 30mUnited Airlines

Deal found 6/30

$885

Sun 10/510:10 pmSIN - IAD

1 stop23h 55mANA

Sun 10/198:20 amIAD - SIN

2 stops28h 25mANA

Deal found 6/29

$932

Sun 10/510:15 amSIN - IAD

1 stop37h 30mTurkish Airlines

Sat 10/189:40 pmIAD - SIN

1 stop32h 15mTurkish Airlines

Deal found 6/30

$1,039

Wed 10/1511:00 pmSIN - IAD

1 stop44h 40mAir India

Wed 10/2211:00 amIAD - SIN

1 stop32h 15mAir India

Deal found 6/30

$1,069

Sun 10/510:10 pmSIN - IAD

2 stops35h 15mMultiple Airlines

Sat 10/181:30 pmIAD - SIN

1 stop40h 25mMultiple Airlines

Deal found 6/30

$1,078

Best flights from Singapore to Dulles Intl
Discover carefully curated flight deals from Singapore to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 30, 2025.

Sun 10/510:10 pmSIN - IAD

2 stops35h 15mAir Canada

Sat 10/185:37 pmIAD - SIN

2 stops49h 28mAir Canada

Deal found 6/30

$804

Wed 10/811:05 amSIN - IAD

1 stop35h 00mUnited Airlines

Mon 11/36:30 amIAD - SIN

2 stops36h 30mUnited Airlines

Deal found 6/30

$885

Sun 10/510:10 pmSIN - IAD

1 stop23h 55mANA

Sun 10/198:20 amIAD - SIN

2 stops28h 25mANA

Deal found 6/29

$932

Sun 10/510:15 amSIN - IAD

1 stop37h 30mTurkish Airlines

Sat 10/189:40 pmIAD - SIN

1 stop32h 15mTurkish Airlines

Deal found 6/30

$1,039

Wed 10/1511:00 pmSIN - IAD

1 stop44h 40mAir India

Wed 10/2211:00 amIAD - SIN

1 stop32h 15mAir India

Deal found 6/30

$1,069

Sun 10/510:10 pmSIN - IAD

2 stops35h 15mMultiple Airlines

Sat 10/181:30 pmIAD - SIN

1 stop40h 25mMultiple Airlines

Deal found 6/30

$1,078

Last-minute flights from Singapore to Dulles Intl
Discover last-minute flight deals from Singapore to Dulles Intl. Data last updated June 30, 2025 and is based on user searches.

Tue 7/16:15 amSIN - IAD

2 stops26h 40mANA

Fri 7/1812:15 pmIAD - SIN

1 stop30h 25mANA

Deal found 6/30

$937

Tue 7/19:10 amSIN - IAD

1 stop33h 11mAir Canada

Fri 7/189:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 6/29

$958

Tue 7/81:40 amSIN - IAD

1 stop43h 00mEmirates

Sat 7/1210:55 amIAD - SIN

1 stop39h 10mEmirates

Deal found 6/30

$1,766

Wed 7/98:40 pmSIN - IAD

2 stops32h 50mUnited Airlines

Sat 7/1212:20 pmIAD - SIN

1 stop30h 20mUnited Airlines

Deal found 6/30

$1,165

Sat 7/1211:00 pmSIN - IAD

2 stops48h 15mAir India

Sun 8/312:50 pmIAD - SIN

1 stop30h 25mAir India

Deal found 6/30

$1,119

Sat 7/127:45 pmSIN - IAD

2 stops36h 00mMultiple Airlines

Sun 8/312:50 pmIAD - SIN

3 stops31h 40mMultiple Airlines

Deal found 6/30

$1,353

Sun 7/138:40 pmSIN - IAD

2 stops36h 15mUnited Airlines

Fri 7/1812:15 pmIAD - SIN

1 stop30h 25mUnited Airlines

Deal found 6/30

$891

Tue 7/2911:40 pmSIN - IAD

2 stops26h 45mLufthansa

Mon 9/110:20 pmIAD - SIN

1 stop30h 20mLufthansa

Deal found 6/30

$1,338

Tue 7/299:10 pmSIN - IAD

1 stop31h 00mEtihad Airways

Sat 8/3010:05 pmIAD - SIN

1 stop23h 35mEtihad Airways

Deal found 6/30

$1,401

Wed 7/3011:30 pmSIN - IAD

1 stop28h 45mSWISS

Mon 9/18:45 pmIAD - SIN

1 stop32h 20mSWISS

Deal found 6/30

$1,295

One-way flights from Singapore to Dulles Intl
Search for one-way flight options from Singapore to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated June 30, 2025.

Fri 9/129:00 amSIN - IAD

1 stop22h 30mAir China

Deal found 6/29

$458

Tue 11/1810:00 amSIN - IAD

2 stops23h 59mAir Canada

Deal found 6/29

$546

Fri 9/127:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 6/28

$548

Sat 9/138:45 amSIN - IAD

2 stops43h 25mMultiple Airlines

Deal found 6/30

$571

Wed 7/161:00 pmSIN - IAD

3 stops58h 15mAir India

Deal found 6/28

$631

Mon 11/172:00 amSIN - IAD

2 stops41h 23mChina Airlines

Deal found 6/29

$676

Wed 8/133:10 pmSIN - IAD

2 stops40h 09mEVA Air

Deal found 6/29

$714

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 10/5

10:10 pm-9:25 pm

2 stops35h 15m

Washington, D.C. Dulles Intl

Sat 10/18

5:37 pm-7:05 am

2 stops49h 28m

$804

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 10/8

11:05 am-10:05 am

1 stop35h 00m

Washington, D.C. Dulles Intl

Mon 11/3

6:30 am-8:00 am

2 stops36h 30m

$885

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 10/5

10:10 pm-10:05 am

1 stop23h 55m

Washington, D.C. Dulles Intl

Sun 10/19

8:20 am-12:45 am

2 stops28h 25m

$932

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 10/5

10:15 am-11:45 am

1 stop37h 30m

Washington, D.C. Dulles Intl

Sat 10/18

9:40 pm-5:55 pm

1 stop32h 15m

$1,039

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 10/15

11:00 pm-7:40 am

1 stop44h 40m

Washington, D.C. Dulles Intl

Wed 10/22

11:00 am-7:15 am

1 stop32h 15m

$1,069

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 10/5

10:10 pm-9:25 pm

2 stops35h 15m

Washington, D.C. Dulles Intl

Sat 10/18

1:30 pm-5:55 pm

1 stop40h 25m

$1,078

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 9/12

9:00 am-7:30 pm

1 stop22h 30m

$458

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 11/18

10:00 am-8:59 pm

2 stops23h 59m

$546

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 9/12

7:45 pm-7:45 pm

2 stops36h 00m

$548

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 9/13

8:45 am-4:10 pm

2 stops43h 25m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 13 results

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

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

To ensure you get the cheapest price possible for a flight from Singapore to Washington, D.C. Dulles Intl Airport, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 July is currently the most expensive (average of $345). 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 much does it cost to fly round-trip from Singapore to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with EVA Air, ANA, and China Airlines from Singapore to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very good

1,210 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

EVA Air

8.4

Very good

1,210 reviews

EVA Air

8.4

Very good

1,210 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

ANA

8.4

Very good

889 reviews

EVA Air

8.4

Very good

1,210 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

China Airlines

8.3

Very good

745 reviews

EVA Air

8.4

Very good

1,210 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

United Airlines

7.4

Good

8,852 reviews

EVA Air

8.4

Very good

1,210 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Turkish Airlines

7.3

Good

3,884 reviews

EVA Air

8.4

Very good

1,210 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

What airport do you fly from for flights from Singapore to Washington, D.C. Dulles Intl?
If you book a flight to Washington, D.C. Dulles Intl from Singapore, you will be flying from Changi, which is the city’s only airport. Singapore Changi (SIN) is located 10.5 mi from the center of Singapore. There are 0 flights from Changi to Washington, D.C. Dulles Intl per day from 1 airline.
What are the cheapest airlines flying from Singapore to Washington, D.C. Dulles Intl Airport round-trip?
According to our current data, Air Canada ($804), United Airlines ($885), and ANA ($932) offers the cheapest pricing from Singapore to Washington, D.C. Dulles Intl Airport. Air Canada is 39% cheaper than the average price of flights available within the next 90 days to this destination.
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 Air China ($458), Air Canada ($546), and IndiGo ($548).
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 July is currently the most expensive (average of $345). 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

Arlington

Woodbridge

Alexandria

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Easton

Towson

Falls Church

Rockville

Springfield

National Harbor

Manassas

Dundalk

Waldorf

Bowie

Hanover

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Singapore to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Qatar Airways	Cheapest$1,333	Average$1,372	FlexibilityNo cancel fee	On-time68%

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$458+ Cheap flights from Singapore (SIN) 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Singapore to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Singapore Changi to Washington, D.C. Dulles Intl are usually found in March or February, booked 78 days in advance, depart on a Friday or Tuesday and return on a Friday

Cheap flight deals from Singapore to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Singapore to Dulles Intl

Cheapest flights from Singapore to Dulles IntlExplore 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 June 30, 2025.

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 June 30, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Singapore to Dulles Intl. Price data was last updated on June 27, 2025.

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

How much does it cost to fly round-trip from Singapore to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with EVA Air, ANA, and China Airlines from Singapore to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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 airport do you fly from for flights from Singapore to Washington, D.C. Dulles Intl?

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

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

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

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

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

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

Traveling to a place near Singapore?

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Alternative routes for Singapore to Dulles Intl

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Top airline flying from Singapore to Dulles Intl

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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 June 30, 2025.