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 - Baltimore/Washington and Singapore Changi - Washington, D.C. Reagan-National.

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

Saturday flights are found to be more expensive to fly from Singapore to Washington, D.C.. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

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

August is one of the best times of the year to fly to Washington, D.C. from Singapore. Prices for August average $1,239 per person but you can even find prices for as low as $923. The most expensive prices can be found in the month of July. Opting for a August flight can save you 15% on your journey compared to booking in July

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.

$497+ Cheap 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	$777 (Trip.com)
One-way from	$497 (Kiwi.com)
Popular in	July
Cheapest in	August
Average price	$1,025

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

Search Deals

One-way flight from Singapore Changi 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 ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 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 August 17, 2025.

Sun 9/2812:20 amSIN - BWI

2 stops42h 41mMultiple Airlines

Mon 10/65:35 amBWI - SIN

2 stops43h 45mMultiple Airlines

Deal found 8/15

$777

Thu 10/308:50 amSIN - DCA

2 stops25h 06mAir Canada

Sat 11/89:20 pmDCA - SIN

2 stops44h 40mAir Canada

Deal found 8/14

$851

Sun 10/59:10 amSIN - IAD

2 stops38h 03mAir Canada

Sun 10/191:00 pmIAD - SIN

2 stops30h 05mAir Canada

Deal found 8/17

$888

Sat 11/228:50 amSIN - IAD

2 stops39h 33mAir Canada

Mon 12/15:50 pmIAD - SIN

2 stops48h 10mAir Canada

Deal found 8/16

$900

Tue 11/118:50 amSIN - DCA

2 stops26h 06mAir Canada

Fri 11/146:00 amDCA - SIN

2 stops36h 00mAir Canada

Deal found 8/15

$900

Thu 10/308:50 amSIN - IAD

2 stops24h 09mAir Canada

Sat 11/810:11 pmIAD - SIN

2 stops43h 49mAir Canada

Deal found 8/14

$906

Thu 10/3011:55 pmSIN - IAD

1 stop31h 35mMultiple Airlines

Sat 11/81:30 pmIAD - SIN

2 stops38h 50mMultiple Airlines

Deal found 8/14

$911

Wed 10/16:15 amSIN - IAD

2 stops26h 50mAir Canada

Wed 10/85:37 pmIAD - SIN

2 stops49h 28mAir Canada

Deal found 8/17

$912

Sat 11/2210:45 amSIN - IAD

1 stop35h 25mANA

Mon 12/18:30 amIAD - SIN

2 stops27h 25mANA

Deal found 8/16

$927

Wed 9/36:15 amSIN - IAD

2 stops26h 40mANA

Wed 9/1712:15 pmIAD - SIN

1 stop30h 25mANA

Deal found 8/15

$930

Sat 9/209:10 amSIN - DCA

2 stops25h 24mAir Canada

Sun 9/286:59 amDCA - SIN

2 stops29h 46mAir Canada

Deal found 8/16

$945

Mon 10/201:45 pmSIN - IAD

2 stops29h 48mMultiple Airlines

Sat 11/156:13 pmIAD - SIN

2 stops41h 27mMultiple Airlines

Deal found 8/17

$961

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 August 17, 2025.

Sun 9/2812:20 amSIN - BWI

2 stops42h 41mMultiple Airlines

Mon 10/65:35 amBWI - SIN

2 stops43h 45mMultiple Airlines

Deal found 8/15

$777

Thu 10/308:50 amSIN - DCA

2 stops25h 06mAir Canada

Sat 11/89:20 pmDCA - SIN

2 stops44h 40mAir Canada

Deal found 8/14

$851

Sat 11/2210:45 amSIN - IAD

1 stop35h 25mANA

Mon 12/18:30 amIAD - SIN

2 stops27h 25mANA

Deal found 8/16

$927

Sat 9/208:05 amSIN - BWI

2 stops27h 01mJapan Airlines

Sun 9/286:00 amBWI - SIN

2 stops60h 10mJapan Airlines

Deal found 8/16

$1,164

Sat 2/79:20 amSIN - IAD

2 stops24h 39mAir Canada

Sat 2/216:30 pmIAD - SIN

2 stops47h 30mAir Canada

Deal found 8/16

$877

Thu 10/3011:55 pmSIN - IAD

1 stop31h 35mMultiple Airlines

Sat 11/81:30 pmIAD - SIN

2 stops38h 50mMultiple Airlines

Deal found 8/14

$911

Wed 9/36:15 amSIN - IAD

2 stops26h 40mANA

Wed 9/1712:15 pmIAD - SIN

1 stop30h 25mANA

Deal found 8/15

$930

Sat 2/79:20 amSIN - DCA

2 stops25h 36mAir Canada

Sat 2/214:10 pmDCA - SIN

2 stops49h 50mAir Canada

Deal found 8/16

$877

Mon 10/201:45 pmSIN - BWI

2 stops28h 27mMultiple Airlines

Sat 11/157:38 amBWI - SIN

2 stops40h 27mMultiple Airlines

Deal found 8/17

$961

Sun 10/59:10 amSIN - IAD

2 stops38h 03mAir Canada

Sun 10/199:35 amIAD - SIN

2 stops33h 30mAir Canada

Deal found 8/15

$888

Sat 11/228:50 amSIN - IAD

2 stops39h 33mAir Canada

Mon 12/15:50 pmIAD - SIN

2 stops48h 10mAir Canada

Deal found 8/16

$900

Mon 12/152:25 pmSIN - BWI

2 stops28h 20mMultiple Airlines

Thu 1/156:55 pmBWI - SIN

2 stops29h 10mMultiple Airlines

Deal found 8/15

$1,022

Last-minute flights from Singapore to Washington, D.C.
Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated August 17, 2025 and is based on user searches.

Fri 8/221:55 amSIN - BWI

2 stops33h 07mAmerican Airlines

Mon 9/17:00 amBWI - SIN

2 stops29h 20mAmerican Airlines

Deal found 8/17

$1,349

Sat 8/238:05 amSIN - BWI

2 stops26h 57mAmerican Airlines

Wed 9/36:41 amBWI - SIN

2 stops29h 39mAmerican Airlines

Deal found 8/15

$1,233

Sat 8/238:40 pmSIN - BWI

2 stops38h 05mUnited Airlines

Mon 9/110:10 amBWI - SIN

2 stops32h 05mUnited Airlines

Deal found 8/17

$1,339

Sat 8/239:50 pmSIN - BWI

2 stops33h 00mMultiple Airlines

Mon 9/16:20 pmBWI - SIN

2 stops35h 10mMultiple Airlines

Deal found 8/16

$1,352

Sat 8/236:15 amSIN - IAD

2 stops25h 05mMultiple Airlines

Mon 9/11:15 pmIAD - SIN

2 stops29h 25mMultiple Airlines

Deal found 8/17

$1,397

Sat 8/238:40 pmSIN - BWI

2 stops38h 05mUnited Airlines

Wed 9/37:00 pmBWI - SIN

1 stop23h 15mUnited Airlines

Deal found 8/15

$1,403

Sat 8/239:50 pmSIN - IAD

2 stops31h 24mMultiple Airlines

Wed 9/36:25 amIAD - SIN

2 stops35h 45mMultiple Airlines

Deal found 8/16

$1,487

Sat 8/2311:05 amSIN - IAD

1 stop35h 00mANA

Mon 9/18:20 amIAD - SIN

2 stops28h 25mANA

Deal found 8/15

$1,622

Sat 8/2311:40 pmSIN - IAD

1 stop27h 35mLufthansa

Wed 9/35:40 pmIAD - SIN

1 stop35h 00mLufthansa

Deal found 8/17

$1,658

Sat 8/237:30 amSIN - IAD

2 stops34h 25mDelta

Wed 9/31:15 pmIAD - SIN

1 stop27h 45mDelta

Deal found 8/16

$1,659

Wed 9/36:15 amSIN - IAD

2 stops26h 40mANA

Wed 9/1712:15 pmIAD - SIN

1 stop30h 25mANA

Deal found 8/15

$930

Wed 9/31:45 pmSIN - DCA

2 stops43h 14mMultiple Airlines

Wed 9/178:59 amDCA - SIN

2 stops39h 36mMultiple Airlines

Deal found 8/15

$1,073

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 August 17, 2025.

Tue 9/163:15 pmSIN - BWI

2 stops27h 46mMultiple Airlines

Deal found 8/15

$497

Sat 9/132:35 pmSIN - BWI

2 stops28h 26mMultiple Airlines

Deal found 8/17

$512

Fri 9/128:00 pmSIN - BWI

2 stops47h 01mMultiple Airlines

Deal found 8/15

$513

Sun 10/193:15 pmSIN - BWI

2 stops27h 20mMultiple Airlines

Deal found 8/16

$515

Tue 11/47:45 pmSIN - IAD

2 stops36h 30mIndiGo

Deal found 8/17

$533

Thu 9/1112:20 amSIN - IAD

3 stops54h 04mMultiple Airlines

Deal found 8/17

$555

Fri 9/122:35 pmSIN - DCA

3 stops38h 24mMultiple Airlines

Deal found 8/16

$559

Sat 9/138:00 pmSIN - IAD

3 stops52h 55mMultiple Airlines

Deal found 8/17

$563

Tue 9/163:15 pmSIN - DCA

3 stops56h 55mMultiple Airlines

Deal found 8/15

$565

Sun 10/199:10 amSIN - IAD

2 stops36h 28mAir Canada

Deal found 8/16

$569

Sun 10/199:10 amSIN - DCA

2 stops35h 49mAir Canada

Deal found 8/16

$569

Wed 9/32:35 pmSIN - IAD

3 stops45h 40mMultiple Airlines

Deal found 8/16

$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

SingaporeBaltimore

SIN - BWI

SINBWI

Singapore Changi

Sun 9/28

12:20 am-7:01 am

2 stops42h 41m

Baltimore/Washington

Mon 10/6

5:35 am-1:20 pm

2 stops43h 45m

$777

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Thu 10/30

8:50 am-9:56 pm

2 stops25h 06m

Washington, D.C. Reagan-National

Sat 11/8

9:20 pm-7:00 am

2 stops44h 40m

$851

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 2/7

9:20 am-8:59 pm

2 stops24h 39m

Washington, D.C. Dulles Intl

Sat 2/21

6:30 pm-7:00 am

2 stops47h 30m

$877

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Sat 2/7

9:20 am-9:56 pm

2 stops25h 36m

Washington, D.C. Reagan-National

Sat 2/21

4:10 pm-7:00 am

2 stops49h 50m

$877

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 10/5

9:10 am-11:13 am

2 stops38h 03m

Washington, D.C. Dulles Intl

Sun 10/19

9:35 am-7:05 am

2 stops33h 30m

$888

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 11/22

8:50 am-11:23 am

2 stops39h 33m

Washington, D.C. Dulles Intl

Mon 12/1

5:50 pm-7:00 am

2 stops48h 10m

$900

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Tue 11/11

8:50 am-9:56 pm

2 stops26h 06m

Washington, D.C. Reagan-National

Fri 11/14

6:00 am-7:00 am

2 stops36h 00m

$900

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Sat 11/22

8:50 am-10:26 am

2 stops38h 36m

Washington, D.C. Reagan-National

Mon 12/1

4:10 pm-7:00 am

2 stops49h 50m

$900

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 10/30

8:50 am-8:59 pm

2 stops24h 09m

Washington, D.C. Dulles Intl

Sat 11/8

10:11 pm-7:00 am

2 stops43h 49m

$906

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 10/30

11:55 pm-7:30 pm

1 stop31h 35m

Washington, D.C. Dulles Intl

Sat 11/8

1:30 pm-5:20 pm

2 stops38h 50m

$911

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 42 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, July is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $302). 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.
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 - Baltimore/Washington and Singapore Changi - Washington, D.C. Reagan-National.
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, July is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $302). 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

Arlington

Alexandria

Tysons

Silver Spring

Springfield

Fredericksburg

Gaithersburg

Towson

Linthicum Heights

Fairfax

Manassas

Falls Church

Laurel

Rockville

Oxon Hill

National Harbor

Dundalk

Waldorf

Bowie

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.

$497+ 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 9/16. 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.

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 August 17, 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 August 17, 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.?

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 August 17, 2025.