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

Departing from Singapore to Washington, D.C. will take you 21h 15m. 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.

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.?

When deciding which route to take from Singapore to Washington, D.C. consider Singapore Changi - Washington, D.C. Dulles Intl, Singapore Changi - Baltimore/Washington or Singapore Changi - Washington, D.C. Reagan-National as they are the most popular.

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

Flights from Singapore to Washington, D.C. lean towards being more expensive in July. Prices are generally better when you fly from Singapore to Washington, D.C. in September, with the cheapest ticket starting at $626.

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

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. as you normally would.

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.

$523+ Flights from Singapore to Washington, D.C.

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Singapore to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Round-trip from	$871 (Air Canada)
One-way from	$523 (Booking.com)
Popular in	July
Cheapest in	September
Average price	$972

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

Search Deals

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

Search Deals

High demand for flights, 2% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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 11, 2025.

Sat 10/259:10 amSIN - IAD

2 stops24h 15mAir Canada

Sat 11/15:50 pmIAD - SIN

2 stops49h 10mAir Canada

Deal found 9/10

$871

Sun 10/268:50 amSIN - IAD

2 stops24h 09mAir Canada

Sun 11/29:45 amIAD - SIN

2 stops32h 15mAir Canada

Deal found 9/11

$886

Sun 10/268:50 amSIN - DCA

2 stops37h 36mAir Canada

Sun 11/25:00 amDCA - SIN

2 stops36h 00mAir Canada

Deal found 9/11

$887

Mon 9/2210:30 pmSIN - IAD

1 stop24h 25mKorean Air

Sun 10/51:15 pmIAD - SIN

1 stop22h 25mKorean Air

Deal found 9/10

$937

Mon 9/227:45 pmSIN - IAD

2 stops36h 00mIndiGo

Sun 10/51:30 pmIAD - SIN

2 stops39h 45mIndiGo

Deal found 9/11

$950

Fri 10/2412:45 pmSIN - BWI

2 stops29h 50mMultiple Airlines

Fri 10/315:35 amBWI - SIN

2 stops30h 50mMultiple Airlines

Deal found 9/9

$961

Sun 9/149:10 amSIN - DCA

2 stops35h 49mAir Canada

Thu 9/189:40 amDCA - SIN

2 stops33h 25mAir Canada

Deal found 9/9

$963

Tue 9/237:45 pmSIN - IAD

2 stops36h 00mIndiGo

Fri 9/261:30 pmIAD - SIN

2 stops39h 45mIndiGo

Deal found 9/8

$970

Fri 10/36:15 amSIN - IAD

2 stops40h 58mAir Canada

Fri 10/179:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 9/11

$977

Sun 9/142:00 amSIN - IAD

2 stops41h 33mMultiple Airlines

Mon 11/177:43 amIAD - SIN

2 stops51h 57mMultiple Airlines

Deal found 9/10

$984

Sun 10/59:10 amSIN - IAD

2 stops24h 15mAir Canada

Sun 10/199:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 9/11

$992

Wed 10/86:15 amSIN - DCA

2 stops27h 36mAir Canada

Wed 10/158:40 pmDCA - SIN

2 stops46h 25mAir Canada

Deal found 9/9

$992

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 11, 2025.

Sun 10/268:50 amSIN - DCA

2 stops37h 36mAir Canada

Sun 11/25:00 amDCA - SIN

2 stops36h 00mAir Canada

Deal found 9/11

$887

Mon 9/227:45 pmSIN - IAD

2 stops36h 00mIndiGo

Sun 10/51:30 pmIAD - SIN

2 stops39h 45mIndiGo

Deal found 9/11

$950

Fri 10/2412:45 pmSIN - BWI

2 stops29h 50mMultiple Airlines

Fri 10/315:35 amBWI - SIN

2 stops30h 50mMultiple Airlines

Deal found 9/9

$961

Tue 3/101:35 amSIN - IAD

1 stop21h 15mKorean Air

Sun 3/1512:50 pmIAD - SIN

1 stop23h 20mKorean Air

Deal found 9/8

$991

Wed 10/221:10 amSIN - IAD

2 stops32h 21mDelta

Sun 10/266:00 amIAD - SIN

2 stops30h 10mDelta

Deal found 9/11

$994

Sun 10/2610:25 amSIN - IAD

1 stop38h 20mTurkish Airlines

Sun 11/29:10 pmIAD - SIN

1 stop22h 35mTurkish Airlines

Deal found 9/11

$1,018

Wed 10/88:45 amSIN - DCA

1 stop25h 06mUnited Airlines

Wed 10/152:00 pmDCA - SIN

2 stops28h 15mUnited Airlines

Deal found 9/9

$1,180

Fri 10/36:15 amSIN - IAD

2 stops40h 58mAir Canada

Fri 10/179:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 9/11

$977

Wed 10/227:30 amSIN - IAD

2 stops39h 56mDelta

Wed 10/297:35 amIAD - SIN

2 stops33h 25mDelta

Deal found 9/10

$994

Mon 9/2211:25 pmSIN - IAD

1 stop32h 05mMultiple Airlines

Sun 10/59:40 pmIAD - SIN

2 stops31h 35mMultiple Airlines

Deal found 9/11

$1,011

Sun 10/510:15 amSIN - IAD

1 stop37h 30mTurkish Airlines

Sun 10/199:40 pmIAD - SIN

1 stop23h 05mTurkish Airlines

Deal found 9/11

$1,068

Mon 9/227:30 amSIN - DCA

2 stops28h 12mDelta

Sun 10/57:00 amDCA - SIN

2 stops34h 00mDelta

Deal found 9/10

$994

Last-minute flights from Singapore to Washington, D.C.
Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated September 11, 2025 and is based on user searches.

Sun 9/149:10 amSIN - DCA

2 stops35h 49mAir Canada

Thu 9/189:40 amDCA - SIN

2 stops33h 25mAir Canada

Deal found 9/9

$963

Sun 9/142:00 amSIN - IAD

2 stops41h 33mMultiple Airlines

Mon 11/177:43 amIAD - SIN

2 stops51h 57mMultiple Airlines

Deal found 9/10

$984

Mon 9/2210:30 pmSIN - IAD

1 stop24h 25mKorean Air

Sun 10/51:15 pmIAD - SIN

1 stop22h 25mKorean Air

Deal found 9/10

$937

Mon 9/227:45 pmSIN - IAD

2 stops36h 00mIndiGo

Sun 10/51:30 pmIAD - SIN

2 stops39h 45mIndiGo

Deal found 9/11

$950

Tue 9/237:45 pmSIN - IAD

2 stops36h 00mIndiGo

Fri 9/261:30 pmIAD - SIN

2 stops39h 45mIndiGo

Deal found 9/8

$970

Fri 10/36:15 amSIN - IAD

2 stops40h 58mAir Canada

Fri 10/179:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 9/11

$977

Sun 10/59:10 amSIN - IAD

2 stops24h 15mAir Canada

Sun 10/199:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 9/11

$992

Wed 10/86:15 amSIN - DCA

2 stops27h 36mAir Canada

Wed 10/158:40 pmDCA - SIN

2 stops46h 25mAir Canada

Deal found 9/9

$992

Fri 10/2412:45 pmSIN - BWI

2 stops29h 50mMultiple Airlines

Fri 10/315:35 amBWI - SIN

2 stops30h 50mMultiple Airlines

Deal found 9/9

$961

Sat 10/259:10 amSIN - IAD

2 stops24h 15mAir Canada

Sat 11/15:50 pmIAD - SIN

2 stops49h 10mAir Canada

Deal found 9/10

$871

Sun 10/268:50 amSIN - IAD

2 stops24h 09mAir Canada

Sun 11/29:45 amIAD - SIN

2 stops32h 15mAir Canada

Deal found 9/11

$886

Sun 10/268:50 amSIN - DCA

2 stops37h 36mAir Canada

Sun 11/25:00 amDCA - SIN

2 stops36h 00mAir Canada

Deal found 9/11

$887

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 11, 2025.

Wed 9/247:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 9/9

$523

Mon 12/811:55 pmSIN - IAD

1 stop31h 35mAir China

Deal found 9/10

$537

Tue 12/98:50 amSIN - IAD

2 stops39h 33mAir Canada

Deal found 9/10

$541

Thu 10/233:15 amSIN - IAD

3 stops42h 23mMultiple Airlines

Deal found 9/9

$542

Thu 10/233:15 amSIN - DCA

3 stops41h 44mMultiple Airlines

Deal found 9/9

$542

Tue 9/233:15 amSIN - IAD

2 stops49h 03mMultiple Airlines

Deal found 9/9

$554

Mon 9/2211:25 pmSIN - IAD

1 stop32h 05mAir China

Deal found 9/10

$558

Fri 2/278:50 amSIN - IAD

2 stops25h 09mAir Canada

Deal found 9/10

$561

Fri 11/141:25 amSIN - BWI

2 stops30h 54mMultiple Airlines

Deal found 9/11

$562

Thu 9/258:45 amSIN - IAD

2 stops43h 25mMultiple Airlines

Deal found 9/10

$568

Fri 10/1712:45 pmSIN - BWI

2 stops29h 50mMultiple Airlines

Deal found 9/8

$568

Sun 9/218:30 pmSIN - IAD

2 stops31h 40mMultiple Airlines

Deal found 9/10

$570

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

Sun 10/26

8:50 am-10:26 am

2 stops37h 36m

Washington, D.C. Reagan-National

Sun 11/2

5:00 am-6:00 am

2 stops36h 00m

$887

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 9/22

7:45 pm-7:45 pm

2 stops36h 00m

Washington, D.C. Dulles Intl

Sun 10/5

1:30 pm-5:15 pm

2 stops39h 45m

$950

SingaporeBaltimore

SIN - BWI

SINBWI

Singapore Changi

Fri 10/24

12:45 pm-6:35 am

2 stops29h 50m

Baltimore/Washington

Fri 10/31

5:35 am-12:25 am

2 stops30h 50m

$961

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 10/3

6:15 am-11:13 am

2 stops40h 58m

Washington, D.C. Dulles Intl

Fri 10/17

9:35 am-7:05 am

2 stops33h 30m

$977

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3/10

1:35 am-10:50 am

1 stop21h 15m

Washington, D.C. Dulles Intl

Sun 3/15

12:50 pm-12:10 am

1 stop23h 20m

$991

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 10/22

1:10 am-9:31 pm

2 stops32h 21m

Washington, D.C. Dulles Intl

Sun 10/26

6:00 am-12:10 am

2 stops30h 10m

$994

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 10/22

7:30 am-11:26 am

2 stops39h 56m

Washington, D.C. Dulles Intl

Wed 10/29

7:35 am-5:00 am

2 stops33h 25m

$994

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Mon 9/22

7:30 am-11:42 pm

2 stops28h 12m

Washington, D.C. Reagan-National

Sun 10/5

7:00 am-5:00 am

2 stops34h 00m

$994

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 9/22

10:50 pm-6:31 am

2 stops43h 41m

Washington, D.C. Dulles Intl

Sun 10/5

9:35 am-12:45 am

2 stops27h 10m

$999

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Mon 9/22

6:15 am-10:20 am

2 stops40h 05m

Washington, D.C. Reagan-National

Sun 10/5

9:40 am-12:45 am

2 stops27h 05m

$1,005

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 46 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

How long is the flight from Singapore to Washington, D.C.?
Departing from Singapore to Washington, D.C. will take you 21h 15m. 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.?
When deciding which route to take from Singapore to Washington, D.C. consider Singapore Changi - Washington, D.C. Dulles Intl, Singapore Changi - Baltimore/Washington or Singapore Changi - Washington, D.C. Reagan-National as they are the most popular.
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.

See more FAQs

Woodbridge

Alexandria

Arlington

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

Dundalk

National Harbor

Browse thousands of different options on Cheapflights for your next trip

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$523+ Cheap flights from Singapore 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 9/24. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Keep the following information in mind while searching for Singapore to Washington, D.C. flight deals. Data was last updated September 11, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 11, 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 11, 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.

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Singapore to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

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 11, 2025.