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

Departing from Singapore to Washington, D.C. Dulles Intl Airport will take you 24h 59m. Airlines will cover a distance of 9644 mi. This flight may include one or multiple stops.

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 month to fly from Singapore to Washington, D.C. Dulles Intl Airport?

Due to multiple factors, expect to potentially pay more when booking in February. For low rates, September can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from Singapore in September are about $1,270 on average during September, but can be found for as low as $919.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Singapore to Washington, D.C. Dulles Intl Airport as you normally would.

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.

$541+ Cheap Flights from Singapore to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Singapore to Dulles Intl

Round-trip from	$871 (Air Canada)
One-way from	$541 (Priceline)
Popular in	February
Cheapest in	September
Average price	$1,010

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. 12% potential increase in price ($182 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($73 potential savings vs. average RT price).

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Average for round-trip flights in September 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 September 15, 2025.

Sun 10/59:10 amSIN - IAD

2 stops36h 28mAir Canada

Sun 10/199:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 9/15

$871

Thu 10/910:10 pmSIN - IAD

1 stop23h 55mANA

Sat 10/251:20 pmIAD - SIN

2 stops53h 35mANA

Deal found 9/15

$922

Thu 10/3010:40 amSIN - IAD

2 stops26h 00mDelta

Thu 11/67:35 amIAD - SIN

2 stops27h 35mDelta

Deal found 9/15

$994

Thu 10/99:10 amSIN - IAD

2 stops36h 28mAir Canada

Sat 10/255:22 pmIAD - SIN

2 stops49h 38mAir Canada

Deal found 9/15

$995

Wed 10/2911:25 pmSIN - IAD

1 stop25h 20mTurkish Airlines

Wed 11/59:10 pmIAD - SIN

1 stop23h 50mTurkish Airlines

Deal found 9/14

$1,008

Thu 10/3010:25 amSIN - IAD

1 stop38h 20mTurkish Airlines

Thu 11/61:30 pmIAD - SIN

1 stop30h 15mTurkish Airlines

Deal found 9/15

$1,009

Thu 10/308:50 amSIN - IAD

2 stops24h 09mAir Canada

Thu 11/69:00 amIAD - SIN

2 stops33h 00mAir Canada

Deal found 9/15

$1,021

Mon 10/137:45 pmSIN - IAD

2 stops36h 00mMultiple Airlines

Mon 10/209:40 pmIAD - SIN

1 stop32h 15mMultiple Airlines

Deal found 9/15

$1,050

Mon 10/1311:10 pmSIN - IAD

1 stop32h 35mTurkish Airlines

Mon 10/201:30 pmIAD - SIN

1 stop40h 25mTurkish Airlines

Deal found 9/15

$1,052

Wed 9/1711:10 pmSIN - IAD

1 stop24h 35mTurkish Airlines

Mon 9/229:40 pmIAD - SIN

1 stop32h 15mTurkish Airlines

Deal found 9/14

$1,053

Thu 10/910:15 amSIN - IAD

1 stop45h 30mTurkish Airlines

Sat 10/251:30 pmIAD - SIN

1 stop32h 30mTurkish Airlines

Deal found 9/14

$1,061

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 September 15, 2025.

Wed 10/2910:40 amSIN - IAD

2 stops24h 59mDelta

Wed 11/56:18 amIAD - SIN

2 stops28h 52mDelta

Deal found 9/14

$995

Fri 10/178:40 pmSIN - IAD

2 stops27h 15mUnited Airlines

Mon 10/271:20 pmIAD - SIN

1 stop29h 35mUnited Airlines

Deal found 9/15

$1,159

Sun 12/2110:25 amSIN - IAD

1 stop38h 20mTurkish Airlines

Wed 12/319:10 pmIAD - SIN

1 stop23h 50mTurkish Airlines

Deal found 9/14

$1,207

Thu 10/163:10 amSIN - IAD

1 stop24h 30mMultiple Airlines

Mon 10/279:05 pmIAD - SIN

1 stop36h 10mMultiple Airlines

Deal found 9/15

$1,439

Wed 12/173:15 amSIN - IAD

1 stop25h 40mQatar Airways

Sun 1/410:40 amIAD - SIN

1 stop21h 35mQatar Airways

Deal found 9/14

$1,504

Mon 12/2211:10 pmSIN - IAD

2 stops32h 35mAsiana Airlines

Fri 1/210:05 pmIAD - SIN

2 stops58h 50mAsiana Airlines

Deal found 9/14

$1,736

Fri 10/32:00 amSIN - IAD

2 stops29h 30mEthiopian Air

Tue 10/75:10 pmIAD - SIN

3 stops33h 40mEthiopian Air

Deal found 9/15

$1,940

Wed 3/1110:30 pmSIN - IAD

2 stops36h 32mDelta

Sun 3/1512:50 pmIAD - SIN

1 stop23h 20mDelta

Deal found 9/14

$1,104

Thu 10/911:05 amSIN - IAD

1 stop35h 00mUnited Airlines

Sat 10/2510:18 pmIAD - SIN

2 stops33h 57mUnited Airlines

Deal found 9/14

$1,159

Thu 12/1810:25 amSIN - IAD

1 stop38h 20mTurkish Airlines

Wed 12/319:10 pmIAD - SIN

1 stop23h 50mTurkish Airlines

Deal found 9/14

$1,230

Sat 12/2010:25 amSIN - IAD

1 stop38h 20mTurkish Airlines

Sat 1/39:10 pmIAD - SIN

1 stop23h 50mTurkish Airlines

Deal found 9/14

$1,254

Fri 10/177:30 amSIN - IAD

2 stops29h 10mDelta

Mon 10/277:35 amIAD - SIN

2 stops28h 35mDelta

Deal found 9/15

$1,742

Last-minute flights from Singapore to Dulles Intl
Discover last-minute flight deals from Singapore to Dulles Intl. Data last updated September 15, 2025 and is based on user searches.

Wed 9/1711:10 pmSIN - IAD

1 stop24h 35mTurkish Airlines

Mon 9/229:40 pmIAD - SIN

1 stop32h 15mTurkish Airlines

Deal found 9/14

$1,053

Sun 10/59:10 amSIN - IAD

2 stops36h 28mAir Canada

Sun 10/199:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 9/15

$871

Thu 10/910:10 pmSIN - IAD

1 stop23h 55mANA

Sat 10/251:20 pmIAD - SIN

2 stops53h 35mANA

Deal found 9/15

$922

Thu 10/99:10 amSIN - IAD

2 stops36h 28mAir Canada

Sat 10/255:22 pmIAD - SIN

2 stops49h 38mAir Canada

Deal found 9/15

$995

Thu 10/910:15 amSIN - IAD

1 stop45h 30mTurkish Airlines

Sat 10/251:30 pmIAD - SIN

1 stop32h 30mTurkish Airlines

Deal found 9/14

$1,061

Mon 10/137:45 pmSIN - IAD

2 stops36h 00mMultiple Airlines

Mon 10/209:40 pmIAD - SIN

1 stop32h 15mMultiple Airlines

Deal found 9/15

$1,050

Mon 10/1311:10 pmSIN - IAD

1 stop32h 35mTurkish Airlines

Mon 10/201:30 pmIAD - SIN

1 stop40h 25mTurkish Airlines

Deal found 9/15

$1,052

Wed 10/2911:25 pmSIN - IAD

1 stop25h 20mTurkish Airlines

Wed 11/59:10 pmIAD - SIN

1 stop23h 50mTurkish Airlines

Deal found 9/14

$1,008

Thu 10/3010:40 amSIN - IAD

2 stops26h 00mDelta

Thu 11/67:35 amIAD - SIN

2 stops27h 35mDelta

Deal found 9/15

$994

Thu 10/3010:25 amSIN - IAD

1 stop38h 20mTurkish Airlines

Thu 11/61:30 pmIAD - SIN

1 stop30h 15mTurkish Airlines

Deal found 9/15

$1,009

Thu 10/308:50 amSIN - IAD

2 stops24h 09mAir Canada

Thu 11/69:00 amIAD - SIN

2 stops33h 00mAir Canada

Deal found 9/15

$1,021

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 September 15, 2025.

Tue 9/239:10 amSIN - IAD

2 stops38h 03mAir Canada

Deal found 9/14

$541

Tue 10/143:15 pmSIN - IAD

3 stops40h 31mMultiple Airlines

Deal found 9/14

$557

Thu 10/169:10 amSIN - IAD

2 stops36h 28mAir Canada

Deal found 9/14

$559

Mon 9/222:20 pmSIN - IAD

3 stops37h 50mMultiple Airlines

Deal found 9/14

$585

Wed 9/244:55 amSIN - IAD

3 stops47h 15mMultiple Airlines

Deal found 9/14

$589

Sun 9/218:45 amSIN - IAD

3 stops43h 25mMultiple Airlines

Deal found 9/14

$595

Tue 12/232:25 pmSIN - IAD

2 stops28h 48mMultiple Airlines

Deal found 9/14

$598

Sun 10/125:40 amSIN - IAD

2 stops46h 30mMultiple Airlines

Deal found 9/14

$607

Sat 10/410:35 pmSIN - IAD

3 stops55h 49mMultiple Airlines

Deal found 9/15

$613

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

Wed 10/29

10:40 am-11:39 pm

2 stops24h 59m

Washington, D.C. Dulles Intl

Wed 11/5

6:18 am-12:10 am

2 stops28h 52m

$995

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 3/11

10:30 pm-11:02 pm

2 stops36h 32m

Washington, D.C. Dulles Intl

Sun 3/15

12:50 pm-12:10 am

1 stop23h 20m

$1,104

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 10/17

8:40 pm-11:55 am

2 stops27h 15m

Washington, D.C. Dulles Intl

Mon 10/27

1:20 pm-6:55 am

1 stop29h 35m

$1,159

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 10/9

11:05 am-10:05 am

1 stop35h 00m

Washington, D.C. Dulles Intl

Sat 10/25

10:18 pm-8:15 pm

2 stops33h 57m

$1,159

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 12/21

10:25 am-11:45 am

1 stop38h 20m

Washington, D.C. Dulles Intl

Wed 12/31

9:10 pm-10:00 am

1 stop23h 50m

$1,207

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 12/18

10:25 am-11:45 am

1 stop38h 20m

Washington, D.C. Dulles Intl

Wed 12/31

9:10 pm-10:00 am

1 stop23h 50m

$1,230

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 12/20

10:25 am-11:45 am

1 stop38h 20m

Washington, D.C. Dulles Intl

Sat 1/3

9:10 pm-10:00 am

1 stop23h 50m

$1,254

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 10/16

3:10 am-3:40 pm

1 stop24h 30m

Washington, D.C. Dulles Intl

Mon 10/27

9:05 pm-9:15 pm

1 stop36h 10m

$1,439

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 12/17

3:15 am-3:55 pm

1 stop25h 40m

Washington, D.C. Dulles Intl

Sun 1/4

10:40 am-9:15 pm

1 stop21h 35m

$1,504

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 12/22

11:10 pm-6:45 pm

2 stops32h 35m

Washington, D.C. Dulles Intl

Fri 1/2

10:05 pm-9:55 pm

2 stops58h 50m

$1,736

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 22 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

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 $292). Flying from Singapore to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

Related info for your journey

How long is the flight from Singapore to Washington, D.C. Dulles Intl Airport?
Departing from Singapore to Washington, D.C. Dulles Intl Airport will take you 24h 59m. Airlines will cover a distance of 9644 mi. This flight may include one or multiple stops.
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 $292). Flying from Singapore to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

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Tysons

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Springfield

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$541+ 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 9/23. 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

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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 September 15, 2025.

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 September 15, 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 September 15, 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

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

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.

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

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 Washington, D.C. Dulles Intl Airport?

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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 September 15, 2025.