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

A quick flight from Washington, D.C. to Singapore can take about 23h 25m. Air Canada provides one of the quickest options available for as low as S$ 1,441. Airlines will cover a distance of 15532 km. This flight may include one or multiple stops. Find deals

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm. Find deals

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C). Find deals

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

Most travellers choose Washington, D.C. Dulles Intl - Singapore Changi, Washington, D.C. Reagan-National - Singapore Changi or Baltimore/Washington - Singapore Changi when deciding on the best route from Washington, D.C. to Singapore. Find deals

How far in advance should I book a flight from Washington, D.C. to Singapore?

To save on the cost of your flight from Washington, D.C. to Singapore, book at least 51 days before your planned departure. Booking around this time can save you about 36% on the cost of this flight compared to booking a flight leaving this week. We have found prices from S$ 1,165 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as S$ 1,226.

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

August is one of the best times of the year to fly to Singapore from Washington, D.C.. Prices for August average S$ 1,506 per person but you can even find prices for as low as S$ 865. The most expensive prices can be found in the month of December. Opting for a August flight can save you 54% on your journey compared to booking in December

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

When flying from Washington, D.C. to Singapore, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Washington, D.C. to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

S$ 512+ Cheap Flights from Washington, D.C. to Singapore

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

Round-trip from	S$ 1,161
One-way from	S$ 512
Popular in	December
Cheapest in	August
Average price	S$ 1,526

14-10-21-10
5 total stops
61h 38m total
Washington, D.C. to Singapore

Search Deals

8-11
2 total stops
38h 14m total
Washington, D.C. to Singapore

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (S$ 254 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (S$ 97 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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

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

Tue 14-1005:35BWI - SIN

2 stops29h 45mMultiple Airlines

Tue 21-1014:35SIN - BWI

3 stops31h 53mMultiple Airlines

Deal found 14-9S$ 1,161

Thu 30-1014:30IAD - SIN

2 stops38h 50mIndiGo

Wed 12-1119:40SIN - IAD

2 stops36h 35mIndiGo

Deal found 15-9S$ 1,216

Sun 12-1021:40IAD - SIN

2 stops31h 35mIndiGo

Mon 20-1019:45SIN - IAD

2 stops36h 00mIndiGo

Deal found 14-9S$ 1,239

Sat 8-1118:13IAD - SIN

1 stop34h 32mSingapore Airlines

Tue 18-1109:00SIN - IAD

1 stop34h 23mSingapore Airlines

Deal found 14-9S$ 1,241

Thu 30-1022:10IAD - SIN

2 stops31h 10mMultiple Airlines

Thu 6-1123:55SIN - IAD

1 stop31h 35mMultiple Airlines

Deal found 15-9S$ 1,250

Sun 21-921:40IAD - SIN

2 stops31h 35mIndiGo

Mon 6-1019:45SIN - IAD

2 stops36h 00mIndiGo

Deal found 15-9S$ 1,254

Mon 13-1021:40IAD - SIN

2 stops31h 35mIndiGo

Tue 28-1019:45SIN - IAD

2 stops36h 30mIndiGo

Deal found 13-9S$ 1,270

Tue 23-922:05IAD - SIN

1 stop23h 35mEtihad Airways

Wed 1-1021:10SIN - IAD

1 stop31h 00mEtihad Airways

Deal found 15-9S$ 1,277

Mon 15-921:40IAD - SIN

2 stops31h 35mIndiGo

Mon 22-919:45SIN - IAD

2 stops36h 00mIndiGo

Deal found 14-9S$ 1,291

Wed 29-1007:38BWI - SIN

2 stops41h 22mMultiple Airlines

Wed 5-1120:45SIN - BWI

1 stop35h 34mMultiple Airlines

Deal found 14-9S$ 1,293

Mon 13-1005:35BWI - SIN

2 stops29h 45mMultiple Airlines

Tue 28-1016:45SIN - BWI

3 stops29h 43mMultiple Airlines

Deal found 13-9S$ 1,295

Tue 14-1013:30IAD - SIN

2 stops39h 45mIndiGo

Tue 20-119:40SIN - IAD

2 stops36h 35mIndiGo

Deal found 14-9S$ 1,300

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

Sun 15-209:30DCA - SIN

2 stops38h 30mMultiple Airlines

Mon 23-200:40SIN - DCA

2 stops33h 15mMultiple Airlines

Deal found 15-9S$ 1,209

Tue 25-1111:05DCA - SIN

2 stops30h 55mAir Canada

Fri 28-1108:50SIN - DCA

2 stops26h 06mAir Canada

Deal found 15-9S$ 1,413

Tue 14-1021:00IAD - SIN

1 stop24h 00mQatar Airways

Mon 20-1003:10SIN - IAD

1 stop24h 30mQatar Airways

Deal found 15-9S$ 1,426

Thu 9-1007:00DCA - SIN

1 stop23h 25mUnited Airlines

Tue 14-1008:45SIN - DCA

1 stop25h 06mUnited Airlines

Deal found 14-9S$ 1,441

Sat 4-1022:05IAD - SIN

1 stop23h 35mEtihad Airways

Thu 16-1021:10SIN - IAD

1 stop31h 00mEtihad Airways

Deal found 14-9S$ 1,443

Wed 12-1107:07BWI - SIN

1 stop33h 23mSingapore Airlines

Tue 18-1109:00SIN - BWI

1 stop22h 16mSingapore Airlines

Deal found 15-9S$ 1,476

Mon 16-207:54BWI - SIN

2 stops27h 56mJapan Airlines

Mon 23-202:20SIN - BWI

2 stops28h 18mJapan Airlines

Deal found 15-9S$ 1,618

Sun 9-1110:40IAD - SIN

1 stop21h 35mQatar Airways

Mon 17-1103:15SIN - IAD

1 stop25h 40mQatar Airways

Deal found 15-9S$ 1,426

Sun 15-206:00DCA - SIN

2 stops30h 00mAir Canada

Tue 24-208:50SIN - DCA

2 stops26h 06mAir Canada

Deal found 15-9S$ 1,430

Wed 22-1017:59DCA - SIN

1 stop24h 16mUnited Airlines

Wed 29-1022:20SIN - DCA

2 stops25h 09mUnited Airlines

Deal found 15-9S$ 1,441

Wed 15-1022:05IAD - SIN

1 stop23h 35mEtihad Airways

Sat 25-1021:10SIN - IAD

1 stop31h 40mEtihad Airways

Deal found 14-9S$ 1,443

Thu 25-911:47IAD - SIN

2 stops36h 38mMultiple Airlines

Wed 1-1001:50SIN - IAD

2 stops45h 07mMultiple Airlines

Deal found 14-9S$ 1,463

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

Sun 21-921:40IAD - SIN

2 stops31h 35mIndiGo

Mon 6-1019:45SIN - IAD

2 stops36h 00mIndiGo

Deal found 15-9S$ 1,254

Sun 21-911:00IAD - SIN

1 stop22h 00mQatar Airways

Sun 28-903:10SIN - IAD

1 stop24h 30mQatar Airways

Deal found 13-9S$ 1,308

Sun 21-919:59DCA - SIN

2 stops34h 26mUnited Airlines

Mon 6-1008:45SIN - DCA

2 stops25h 25mUnited Airlines

Deal found 15-9S$ 1,330

Sun 21-922:10IAD - SIN

1 stop32h 15mUnited Airlines

Mon 6-1008:45SIN - IAD

1 stop22h 07mUnited Airlines

Deal found 15-9S$ 1,339

Sun 21-911:00IAD - SIN

1 stop22h 00mQatar Airways

Sun 5-1003:10SIN - IAD

1 stop24h 30mQatar Airways

Deal found 15-9S$ 1,341

Sun 21-921:40IAD - SIN

1 stop23h 05mTurkish Airlines

Fri 26-910:15SIN - IAD

1 stop37h 30mTurkish Airlines

Deal found 12-9S$ 1,350

Sun 21-905:45BWI - SIN

2 stops29h 35mMultiple Airlines

Mon 6-1014:35SIN - BWI

3 stops31h 53mMultiple Airlines

Deal found 15-9S$ 1,363

Sun 21-911:00IAD - SIN

2 stops25h 10mMultiple Airlines

Mon 29-918:45SIN - IAD

1 stop32h 55mMultiple Airlines

Deal found 13-9S$ 1,372

Sun 21-921:40IAD - SIN

2 stops31h 35mIndiGo

Mon 29-919:45SIN - IAD

2 stops36h 00mIndiGo

Deal found 13-9S$ 1,385

Mon 22-922:05IAD - SIN

1 stop23h 35mEtihad Airways

Tue 30-921:10SIN - IAD

1 stop31h 00mEtihad Airways

Deal found 14-9S$ 1,291

Thu 25-913:30IAD - SIN

2 stops39h 45mMultiple Airlines

Thu 2-1023:25SIN - IAD

1 stop32h 05mMultiple Airlines

Deal found 14-9S$ 1,344

Thu 25-921:00IAD - SIN

1 stop30h 45mQatar Airways

Wed 1-1003:10SIN - IAD

1 stop24h 30mQatar Airways

Deal found 14-9S$ 1,371

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

Sat 8-1120:26BWI - SIN

2 stops38h 14mMultiple Airlines

Deal found 14-9S$ 512

Mon 13-1005:35BWI - SIN

2 stops29h 45mMultiple Airlines

Deal found 13-9S$ 514

Wed 5-1120:26BWI - SIN

2 stops38h 14mMultiple Airlines

Deal found 14-9S$ 516

Mon 22-918:45IAD - SIN

3 stops54h 35mMultiple Airlines

Deal found 12-9S$ 516

Mon 10-1106:00BWI - SIN

2 stops42h 00mMultiple Airlines

Deal found 14-9S$ 518

Sun 9-1120:26BWI - SIN

2 stops38h 14mMultiple Airlines

Deal found 14-9S$ 523

Sun 16-1106:00IAD - SIN

3 stops53h 10mMultiple Airlines

Deal found 14-9S$ 543

Wed 1-1021:40IAD - SIN

2 stops32h 05mIndiGo

Deal found 15-9S$ 546

Tue 14-1005:35BWI - SIN

2 stops29h 45mMultiple Airlines

Deal found 15-9S$ 550

Sun 5-1021:52BWI - SIN

3 stops37h 28mMultiple Airlines

Deal found 14-9S$ 553

Mon 13-1021:28IAD - SIN

3 stops37h 52mMultiple Airlines

Deal found 13-9S$ 555

Sun 5-1021:40IAD - SIN

2 stops31h 35mIndiGo

Deal found 14-9S$ 561

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 15-2

09:30-13:00

2 stops38h 30m

Singapore Changi

Mon 23-2

00:40-20:55

2 stops33h 15m

S$ 1,209

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 25-11

11:05-07:00

2 stops30h 55m

Singapore Changi

Fri 28-11

08:50-21:56

2 stops26h 06m

S$ 1,413

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 14-10

21:00-09:00

1 stop24h 00m

Singapore Changi

Mon 20-10

03:10-15:40

1 stop24h 30m

S$ 1,426

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 9-11

10:40-21:15

1 stop21h 35m

Singapore Changi

Mon 17-11

03:15-15:55

1 stop25h 40m

S$ 1,426

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 15-2

06:00-01:00

2 stops30h 00m

Singapore Changi

Tue 24-2

08:50-21:56

2 stops26h 06m

S$ 1,430

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 9-10

07:00-18:25

1 stop23h 25m

Singapore Changi

Tue 14-10

08:45-21:51

1 stop25h 06m

S$ 1,441

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 22-10

17:59-06:15

1 stop24h 16m

Singapore Changi

Wed 29-10

22:20-11:29

2 stops25h 09m

S$ 1,441

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 30-10

07:00-20:15

1 stop25h 15m

Singapore Changi

Thu 6-11

22:20-14:55

2 stops29h 35m

S$ 1,441

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 11-11

17:59-08:00

1 stop25h 01m

Singapore Changi

Tue 18-11

22:20-11:29

2 stops26h 09m

S$ 1,441

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 7-10

07:00-18:25

1 stop23h 25m

Singapore Changi

Mon 13-10

08:45-21:51

1 stop25h 06m

S$ 1,441

Flights are sorted by cheapest return flights first.

Deals found on 14-9

Showing 1-10 of 59 results

...

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

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

Estimated return 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 Washington, D.C. to Singapore

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Washington, D.C. to Singapore?
A quick flight from Washington, D.C. to Singapore can take about 23h 25m. Air Canada provides one of the quickest options available for as low as S$ 1,441. Airlines will cover a distance of 15532 km. This flight may include one or multiple stops.
What are the most popular routes from Washington, D.C. to Singapore?
Most travellers choose Washington, D.C. Dulles Intl - Singapore Changi, Washington, D.C. Reagan-National - Singapore Changi or Baltimore/Washington - Singapore Changi when deciding on the best route from Washington, D.C. to Singapore.
Can I find deals for flights from Washington, D.C. to Singapore that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Singapore?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Singapore.
Can I find deals for business class flights from Washington, D.C. to Singapore?
Yes. Cheapflights offers flight deals from Washington, D.C. to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington, D.C. to Singapore

Dulles Intl to Singapore flights

Direct flights to

Direct flights to Tiruchirappalli

Direct flights to Bangkok

Direct flights to Chennai

Direct flights to Kuala Lumpur

Direct flights to Tokyo

Direct flights to Manila

Direct flights to Penang

Direct flights to Taipei City

Direct flights to Dhaka

Direct flights to Osaka

Direct flights to Denpasar

Direct flights to Ho Chi Minh City

Direct flights to Seoul

Direct flights to Hong Kong

Direct flights to Jakarta

Direct flights to Guangzhou

Direct flights to Shanghai

Direct flights to Hanoi

Direct flights to Ipoh

Direct flights to Phuket City

Direct flights to Trivandrum

Direct flights to Madurai

Direct flights to Yangon

Direct flights to Sapporo

Direct flights to Colombo

Direct flights to Langkawi

Direct flights to Angeles City

Direct flights to New Delhi

Direct flights to Kunming

Direct flights to Chongqing

Direct flights to Da Nang

Direct flights to Coimbatore

Direct flights to Beijing

Direct flights to Hyderabad

Direct flights to Kota Kinabalu

Direct flights to Bangalore

Direct flights to Surabaya

Direct flights to Kuching

Direct flights to Cebu City

Direct flights to Chengdu

Direct flights to Cochin

Direct flights to Amritsar

Direct flights to Hat Yai

Direct flights to Chiang Mai

Direct flights to Shenzhen

Direct flights to Mumbai

Direct flights to Visakhapatnam

Direct flights to Krabi

Direct flights to Jeju City

Direct flights to Xiamen

Top airline flying from Washington, D.C. to Singapore

Airline	Cheapest	Average	Flexibility	On-time
Qatar Airways	CheapestS$ 1,358	AverageS$ 2,214	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Washington, D.C. to Singapore?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to Singapore. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Singapore?

Cheapflights simply makes it quick and affordable to book flights from Washington, D.C. to Singapore by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Washington, D.C. to Singapore with no change fees?

Yes, we can. To see specific flights from Washington, D.C. to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Singapore become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Singapore from Washington, D.C. today and book when prices fit your budget.

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.

Cheap flights from Washington, D.C. to Singapore from S$ 512

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 8-11. Fares are subject to change and may not be available on all flights or dates of travel.

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

Keep the following information in mind while searching for Washington, D.C. to Singapore flight deals. Data was last updated 16 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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

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

Cheapflights Fare Finder

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

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

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

Cheapflights Insights

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

Related info for your journey

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

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

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

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

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

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 Washington, D.C. to Singapore

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

Top airline flying from Washington, D.C. to Singapore

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington, D.C. to Singapore?

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Singapore?

Can Cheapflights find flights from Washington, D.C. to Singapore with no change fees?

Can Cheapflights notify me if prices for flights from Washington, D.C. to Singapore become cheaper?

100% Free

Book with Flexibility

Travel Smart

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