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

Departing from Singapore to Washington, D.C. will take you 24h 20m. Airlines will cover a distance of 9644 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Travelers seeking maximum savings on their Singapore to Washington, D.C. flight should consider departing on Saturday afternoons when fares are most often at their lowest. Thursday 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. 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. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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 are the most popular routes from Singapore to Washington, D.C.?

The most popular flight routes from Singapore to Washington, D.C. are Singapore Changi - Washington, D.C. Dulles Intl, Singapore Changi - Washington, D.C. Reagan-National and Singapore Changi - Baltimore/Washington.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 25% on flights from Singapore to Washington, D.C. by exploring options for tickets at noon.

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

If you book a flight to Washington, D.C. 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. per day from 0 different airlines.

Can I find deals for flights from Singapore to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Singapore to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Singapore to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Washington, D.C..

Can I find deals for business class flights from Singapore to Washington, D.C.?

Yes. Cheapflights offers flight deals from Singapore to Washington, D.C. 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.

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Cheap flight deals from Singapore to Washington, D.C.

Round-trip from	$870 (Priceline)
One-way from	$541 (Priceline)
Popular in	February
Cheapest in	September
Average price	$1,010

From Singapore Changi to Washington, D.C. (WAS)

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One-way flight from Singapore Changi to Washington, D.C. (WAS)

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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 Washington, D.C.

Cheapest flights from Singapore to Washington, D.C.
Explore the most affordable flight options available from Singapore to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

Sun 9/289:10 amSIN - IAD

2 stops36h 28mAir Canada

Sun 10/199:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 9/15

$870

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 10/303:15 pmSIN - BWI

2 stops27h 20mMultiple Airlines

Thu 11/62:30 pmBWI - SIN

3 stops34h 30mMultiple Airlines

Deal found 9/15

$937

Thu 10/164:05 pmSIN - BWI

3 stops30h 45mMultiple Airlines

Fri 10/245:35 amBWI - SIN

2 stops31h 15mMultiple Airlines

Deal found 9/15

$954

Tue 10/79:10 amSIN - DCA

2 stops35h 49mAir Canada

Thu 10/166:00 amDCA - SIN

2 stops37h 05mAir Canada

Deal found 9/16

$981

Thu 10/169:10 amSIN - DCA

2 stops35h 49mAir Canada

Fri 10/246:00 amDCA - SIN

2 stops37h 05mAir Canada

Deal found 9/15

$985

Tue 10/79:10 amSIN - IAD

2 stops36h 28mAir Canada

Thu 10/163:36 pmIAD - SIN

2 stops27h 29mAir Canada

Deal found 9/16

$987

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

Tue 10/281:35 amSIN - DCA

2 stops33h 05mDelta

Wed 11/56:19 amDCA - SIN

2 stops28h 51mDelta

Deal found 9/14

$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

Best flights from Singapore to Washington, D.C.
Discover carefully curated flight deals from Singapore to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2025.

Tue 10/79:10 amSIN - DCA

2 stops35h 49mAir Canada

Thu 10/166:00 amDCA - SIN

2 stops37h 05mAir Canada

Deal found 9/16

$981

Wed 3/1110:30 pmSIN - IAD

1 stop24h 20mKorean Air

Sun 3/1512:50 pmIAD - SIN

1 stop28h 10mKorean Air

Deal found 9/15

$993

Tue 10/281:35 amSIN - IAD

2 stops33h 45mDelta

Wed 11/57:35 amIAD - SIN

2 stops27h 35mDelta

Deal found 9/14

$995

Wed 10/292:00 amSIN - BWI

2 stops40h 18mMultiple Airlines

Thu 11/67:38 amBWI - SIN

2 stops40h 27mMultiple Airlines

Deal found 9/15

$1,083

Thu 10/910:15 amSIN - IAD

1 stop37h 30mTurkish Airlines

Sat 10/2510:10 pmIAD - SIN

1 stop23h 50mTurkish Airlines

Deal found 9/16

$1,150

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

Thu 3/128:15 amSIN - DCA

2 stops25h 40mJapan Airlines

Mon 3/162:54 pmDCA - SIN

2 stops27h 41mJapan Airlines

Deal found 9/15

$1,235

Tue 10/281:35 amSIN - DCA

2 stops33h 05mDelta

Wed 11/56:19 amDCA - SIN

2 stops28h 51mDelta

Deal found 9/14

$995

Fri 10/1710:15 amSIN - IAD

1 stop37h 30mTurkish Airlines

Mon 10/272:30 pmIAD - SIN

1 stop39h 05mTurkish Airlines

Deal found 9/15

$1,165

Tue 10/71:45 pmSIN - BWI

2 stops28h 27mMultiple Airlines

Thu 10/166:12 pmBWI - SIN

2 stops30h 23mMultiple Airlines

Deal found 9/16

$1,174

Mon 10/138:45 amSIN - DCA

1 stop25h 06mUnited Airlines

Mon 10/202:00 pmDCA - SIN

2 stops28h 15mUnited Airlines

Deal found 9/15

$1,182

Wed 3/1110:30 pmSIN - IAD

1 stop24h 20mDelta

Sun 3/157:59 pmIAD - SIN

2 stops36h 26mDelta

Deal found 9/13

$1,098

Tue 3/108:15 amSIN - BWI

2 stops25h 13mJapan Airlines

Wed 3/117:49 amBWI - SIN

2 stops29h 01mJapan Airlines

Deal found 9/14

$1,238

Tue 10/78:45 amSIN - DCA

1 stop25h 06mUnited Airlines

Thu 10/161:00 pmDCA - SIN

2 stops29h 15mUnited Airlines

Deal found 9/16

$1,183

Fri 10/171:45 pmSIN - DCA

2 stops43h 29mMultiple Airlines

Mon 10/275:00 pmDCA - SIN

2 stops32h 05mMultiple Airlines

Deal found 9/15

$1,184

Tue 10/77:30 amSIN - IAD

1 stop39h 25mDelta

Thu 10/166:00 amIAD - SIN

2 stops29h 40mDelta

Deal found 9/16

$1,099

Wed 10/291:35 amSIN - DCA

2 stops30h 58mDelta

Thu 11/68:59 amDCA - SIN

2 stops26h 11mDelta

Deal found 9/15

$1,104

Sat 10/48:45 amSIN - DCA

1 stop25h 06mUnited Airlines

Tue 10/71:00 pmDCA - SIN

2 stops29h 15mUnited Airlines

Deal found 9/15

$1,221

Tue 3/1010:10 amSIN - BWI

2 stops36h 09mUnited Airlines

Wed 3/116:56 pmBWI - SIN

1 stop37h 19mUnited Airlines

Deal found 9/14

$1,223

Mon 10/62:30 amSIN - DCA

3 stops31h 21mMultiple Airlines

Thu 10/1611:00 amDCA - SIN

2 stops32h 05mMultiple Airlines

Deal found 9/16

$1,350

Tue 10/78:45 amSIN - BWI

1 stop24h 45mUnited Airlines

Thu 10/169:00 amBWI - SIN

1 stop33h 15mUnited Airlines

Deal found 9/16

$1,223

Thu 10/3010:20 pmSIN - DCA

2 stops26h 14mUnited Airlines

Thu 11/67:00 amDCA - SIN

1 stop36h 00mUnited Airlines

Deal found 9/15

$1,254

Fri 10/178:45 amSIN - BWI

1 stop24h 45mUnited Airlines

Mon 10/278:30 amBWI - SIN

1 stop34h 30mUnited Airlines

Deal found 9/15

$1,262

Sat 10/48:45 amSIN - BWI

2 stops24h 37mUnited Airlines

Tue 10/74:21 pmBWI - SIN

2 stops25h 54mUnited Airlines

Deal found 9/15

$1,262

Last-minute flights from Singapore to Washington, D.C.
Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated September 16, 2025 and is based on user searches.

Sun 9/289:10 amSIN - IAD

2 stops36h 28mAir Canada

Sun 10/199:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 9/15

$870

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

Tue 10/79:10 amSIN - DCA

2 stops35h 49mAir Canada

Thu 10/166:00 amDCA - SIN

2 stops37h 05mAir Canada

Deal found 9/16

$981

Tue 10/79:10 amSIN - IAD

2 stops36h 28mAir Canada

Thu 10/163:36 pmIAD - SIN

2 stops27h 29mAir Canada

Deal found 9/16

$987

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 10/164:05 pmSIN - BWI

3 stops30h 45mMultiple Airlines

Fri 10/245:35 amBWI - SIN

2 stops31h 15mMultiple Airlines

Deal found 9/15

$954

Thu 10/169:10 amSIN - DCA

2 stops35h 49mAir Canada

Fri 10/246:00 amDCA - SIN

2 stops37h 05mAir Canada

Deal found 9/15

$985

Tue 10/281:35 amSIN - DCA

2 stops33h 05mDelta

Wed 11/56:19 amDCA - SIN

2 stops28h 51mDelta

Deal found 9/14

$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 10/303:15 pmSIN - BWI

2 stops27h 20mMultiple Airlines

Thu 11/62:30 pmBWI - SIN

3 stops34h 30mMultiple Airlines

Deal found 9/15

$937

Thu 10/3010:40 amSIN - IAD

2 stops26h 00mDelta

Thu 11/67:35 amIAD - SIN

2 stops27h 35mDelta

Deal found 9/15

$994

One-way flights from Singapore to Washington, D.C.
Search for one-way flight options from Singapore to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Tue 9/239:10 amSIN - IAD

1 stop33h 21mAir Canada

Deal found 9/14

$541

Tue 9/239:10 amSIN - DCA

2 stops35h 49mAir Canada

Deal found 9/16

$549

Mon 9/226:15 amSIN - IAD

2 stops40h 58mAir Canada

Deal found 9/16

$556

Mon 9/2210:50 pmSIN - DCA

2 stops35h 44mAir Canada

Deal found 9/16

$556

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

Sun 9/2112:30 amSIN - IAD

3 stops51h 40mMultiple Airlines

Deal found 9/16

$562

Mon 1/121:25 amSIN - BWI

2 stops30h 54mMultiple Airlines

Deal found 9/15

$585

Wed 9/244:55 amSIN - IAD

3 stops47h 15mMultiple Airlines

Deal found 9/14

$589

Tue 9/238:45 amSIN - IAD

3 stops43h 25mMultiple Airlines

Deal found 9/16

$591

Mon 12/222:25 pmSIN - DCA

2 stops44h 34mMultiple Airlines

Deal found 9/16

$597

Tue 12/232:25 pmSIN - DCA

2 stops38h 42mMultiple Airlines

Deal found 9/14

$598

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Tue 10/7

9:10 am-8:59 am

2 stops35h 49m

Washington, D.C. Reagan-National

Thu 10/16

6:00 am-7:05 am

2 stops37h 05m

$981

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 3/11

10:30 pm-10:50 am

1 stop24h 20m

Washington, D.C. Dulles Intl

Sun 3/15

12:50 pm-5:00 am

1 stop28h 10m

$993

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 10/28

1:35 am-11:20 pm

2 stops33h 45m

Washington, D.C. Dulles Intl

Wed 11/5

7:35 am-12:10 am

2 stops27h 35m

$995

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Tue 10/28

1:35 am-10:40 pm

2 stops33h 05m

Washington, D.C. Reagan-National

Wed 11/5

6:19 am-12:10 am

2 stops28h 51m

$995

SingaporeBaltimore

SIN - BWI

SINBWI

Singapore Changi

Wed 10/29

2:00 am-6:18 am

2 stops40h 18m

Baltimore/Washington

Thu 11/6

7:38 am-1:05 pm

2 stops40h 27m

$1,083

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 3/11

10:30 pm-10:50 am

1 stop24h 20m

Washington, D.C. Dulles Intl

Sun 3/15

7:59 pm-8:25 pm

2 stops36h 26m

$1,098

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 10/7

7:30 am-10:55 am

1 stop39h 25m

Washington, D.C. Dulles Intl

Thu 10/16

6:00 am-11:40 pm

2 stops29h 40m

$1,099

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Wed 10/29

1:35 am-8:33 pm

2 stops30h 58m

Washington, D.C. Reagan-National

Thu 11/6

8:59 am-12:10 am

2 stops26h 11m

$1,104

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 10/9

10:15 am-11:45 am

1 stop37h 30m

Washington, D.C. Dulles Intl

Sat 10/25

10:10 pm-10:00 am

1 stop23h 50m

$1,150

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 52 results

...

Best time to book a flight from Singapore to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

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

Currently, August is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $292). Flying from Singapore to Washington, D.C. 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

What airport do you fly from for flights from Singapore to Washington, D.C.?
If you book a flight to Washington, D.C. 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. per day from 0 different airlines.
How long is the flight from Singapore to Washington, D.C.?
Departing from Singapore to Washington, D.C. will take you 24h 20m. Airlines will cover a distance of 9644 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the most popular routes from Singapore to Washington, D.C.?
The most popular flight routes from Singapore to Washington, D.C. are Singapore Changi - Washington, D.C. Dulles Intl, Singapore Changi - Washington, D.C. Reagan-National and Singapore Changi - Baltimore/Washington.
Can I find deals for flights from Singapore to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Singapore to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Singapore to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Washington, D.C..
Can I find deals for business class flights from Singapore to Washington, D.C.?
Yes. Cheapflights offers flight deals from Singapore to Washington, D.C. 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.?
Currently, August is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $292). Flying from Singapore to Washington, D.C. 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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$541+ Cheap flights from Singapore (SIN) to Washington, D.C. (WAS)

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 Washington, D.C. with Cheapflights

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Cheap flight deals from Singapore to Washington, D.C.

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Find flight deals from Singapore to Washington, D.C.

Cheapest flights from Singapore to Washington, D.C.Explore the most affordable flight options available from Singapore to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

Explore the most affordable flight options available from Singapore to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Singapore to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Singapore with our price prediction graph.

Cheapflights Insights

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

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

Related info for your journey

Find useful and relevant information for your journey from Singapore to Washington, D.C.. 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.?

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

What are the most popular routes from Singapore to Washington, D.C.?

Can I find deals for flights from Singapore to Washington, D.C. that include hotel bookings?

How can I find direct flights from Singapore to Washington, D.C.?

Can I find deals for business class flights from Singapore to Washington, D.C.?

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

Traveling to a place near Washington, D.C.?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Singapore to Washington, D.C.

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Cheapest flights from Singapore to Washington, D.C.
Explore the most affordable flight options available from Singapore to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.