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

A quick flight from Washington, D.C. to Singapore can take about 29h 15m. Turkish Airlines provides one of the quickest options available for as low as S$ 1,515. Airlines will cover a distance of 15521 km. This flight may include one or multiple stops.

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.

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).

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.

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$ 552+ Cheap Flights from Washington, D.C. to Singapore

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

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 3 November 2026.

Thu 3-1213:30 -

1 stop39h 10m

Thu 10-1223:15 -

1 stop25h 30m

Deal found 2-11S$ 1,494

Tue 17-1114:25 -

1 stop30h 10m

Mon 23-1119:25 -

1 stop26h 35m

Deal found 1-11S$ 1,496

Tue 3-1118:12 -

2 stops45h 48m

Tue 10-1122:30 -

2 stops39h 11m

Deal found 29-10S$ 1,499

Tue 24-1114:25 -

1 stop30h 10m

Sat 19-1219:25 -

1 stop26h 35m

Deal found 1-11S$ 1,501

Sun 6-1207:00 -

2 stops28h 45m

Mon 14-1217:45 -

1 stop37h 45m

Deal found 29-10S$ 1,505

Fri 6-1113:30 -

1 stop30h 15m

Thu 19-1123:15 -

1 stop33h 10m

Deal found 31-10S$ 1,506

Thu 12-1114:25 -

1 stop30h 10m

Mon 16-1119:25 -

1 stop26h 35m

Deal found 30-10S$ 1,514

Sun 15-1114:25 -

1 stop30h 10m

Mon 23-1117:45 -

1 stop37h 45m

Deal found 29-10S$ 1,518

Wed 9-1221:20 -

1 stop23h 40m

Thu 17-1210:25 -

1 stop38h 20m

Deal found 31-10S$ 1,527

Wed 25-1113:30 -

1 stop31h 30m

Wed 2-1211:40 -

1 stop37h 05m

Deal found 2-11S$ 1,528

Mon 2-1106:00 -

2 stops34h 40m

Mon 16-1101:25 -

2 stops41h 13m

Deal found 1-11S$ 1,530

Tue 17-1106:00 -

2 stops34h 40m

Sun 22-1101:25 -

2 stops41h 05m

Deal found 1-11S$ 1,532

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 3 November 2026.

Tue 1-1213:30 -

1 stop28h 20m

Tue 15-1223:15 -

1 stop25h 30m

Deal found 29-10S$ 1,494

Thu 21-106:00 -

2 stops29h 15m

Sun 7-210:30 -

1 stop36h 20m

Deal found 2-11S$ 1,515

Mon 23-1106:00 -

2 stops34h 40m

Mon 7-1212:55 -

2 stops29h 23m

Deal found 1-11S$ 1,530

Mon 1-312:55 -

2 stops30h 05m

Mon 8-310:10 -

1 stop23h 29m

Deal found 1-11S$ 1,968

Tue 9-317:21 -

2 stops33h 44m

Tue 16-323:05 -

2 stops32h 14m

Deal found 2-11S$ 2,437

Tue 16-307:00 -

2 stops29h 15m

Tue 23-322:30 -

2 stops28h 11m

Deal found 1-11S$ 1,530

Tue 17-1106:00 -

2 stops34h 40m

Sun 22-1101:25 -

2 stops41h 05m

Deal found 1-11S$ 1,532

Wed 18-1113:30 -

1 stop28h 20m

Thu 26-1105:10 -

1 stop43h 35m

Deal found 29-10S$ 1,567

Sat 28-1121:20 -

1 stop22h 25m

Sat 5-1210:25 -

1 stop46h 00m

Deal found 31-10S$ 1,583

Mon 23-1106:00 -

2 stops42h 00m

Sun 6-1220:20 -

2 stops45h 58m

Deal found 1-11S$ 1,599

Sat 28-1106:10 -

2 stops33h 50m

Sat 5-1210:30 -

2 stops26h 17m

Deal found 31-10S$ 1,825

Sat 28-1107:45 -

1 stop35h 15m

Sat 5-1222:20 -

2 stops25h 18m

Deal found 31-10S$ 2,092

Sat 14-1106:00 -

2 stops40h 50m

Wed 2-1214:05 -

2 stops28h 29m

Deal found 29-10S$ 1,735

Sat 28-1113:30 -

1 stop30h 15m

Mon 4-111:40 -

1 stop37h 05m

Deal found 29-10S$ 1,853

Sat 16-117:54 -

1 stop25h 06m

Sun 31-110:10 -

1 stop25h 20m

Deal found 1-11S$ 2,096

Mon 8-218:24 -

2 stops32h 41m

Wed 17-223:15 -

2 stops31h 23m

Deal found 1-11S$ 2,445

Tue 9-217:54 -

1 stop25h 06m

Mon 22-210:10 -

1 stop23h 50m

Deal found 30-10S$ 2,160

Wed 2-1210:10 -

2 stops31h 45m

Wed 6-106:35 -

2 stops27h 35m

Deal found 29-10S$ 2,180

Tue 1-1211:50 -

1 stop28h 10m

Tue 5-122:30 -

2 stops28h 34m

Deal found 29-10S$ 2,429

Sat 13-212:55 -

2 stops30h 05m

Mon 8-310:10 -

1 stop23h 29m

Deal found 2-11S$ 2,224

Mon 8-206:00 -

3 stops37h 00m

Thu 11-222:20 -

2 stops25h 34m

Deal found 2-11S$ 2,358

Thu 14-117:54 -

1 stop25h 06m

Sun 24-122:20 -

2 stops24h 38m

Deal found 29-10S$ 2,437

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

Round-trip from	S$ 1,494
One-way from	S$ 552
Popular in	December
Cheapest in	February
Average price	S$ 1,489

Turkish Airlines
6-12-10-12
2 total stops
69h 40m total
Washington, D.C. to Singapore

Search Deals

21-3-31-12
2 total stops
59h 15m total
Washington, D.C. to Singapore

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (S$ 223 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (S$ 108 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

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

Cheapest return flight

Washington, D.C.Singapore

DCA Washington, D.C. Reagan-National - SIN Singapore Changi

DCASIN

Washington, D.C. Reagan-National

Thu 28-1

14:59-12:50

2 stops56h 51m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 637

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Wed 24-2

14:25-09:35

1 stop30h 10m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 656

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Thu 4-2

11:50-05:00

1 stop28h 10m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 687

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Wed 24-3

12:50-20:25

1 stop43h 35m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 687

Washington, D.C.Singapore

DCA Washington, D.C. Reagan-National - SIN Singapore Changi

DCASIN

Washington, D.C. Reagan-National

Wed 3-2

19:43-05:00

2 stops44h 17m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 691

Washington, D.C.Singapore

DCA Washington, D.C. Reagan-National - SIN Singapore Changi

DCASIN

Washington, D.C. Reagan-National

Mon 1-2

06:00-00:15

2 stops29h 15m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 691

Washington, D.C.Singapore

DCA Washington, D.C. Reagan-National - SIN Singapore Changi

DCASIN

Washington, D.C. Reagan-National

Mon 15-3

06:00-05:00

2 stops35h 00m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 691

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Mon 15-3

06:10-05:00

2 stops34h 50m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 691

Washington, D.C.Singapore

IAD Washington, D.C. Dulles Intl - SIN Singapore Changi

IADSIN

Washington, D.C. Dulles Intl

Wed 31-3

06:10-05:00

2 stops34h 50m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 691

Washington, D.C.Singapore

DCA Washington, D.C. Reagan-National - SIN Singapore Changi

DCASIN

Washington, D.C. Reagan-National

Thu 4-2

06:00-20:25

2 stops49h 25m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 694

Flights are sorted by cheapest return flights first.

Deals found on 31-10

Showing 1-10 of 38 resultsSorted by cheapest first

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.

IAD-SIN

DCA-SIN

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

WAS-SG0

IAD-SIN

DCA-SIN

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 1,262). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 2,573). 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.

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

The best time to book flights from Washington, D.C. to Singapore is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 29h 15m. Turkish Airlines provides one of the quickest options available for as low as S$ 1,515. Airlines will cover a distance of 15521 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.
What is the cheapest month to book a flight from Washington, D.C. to Singapore?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of S$ 1,262). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 2,573). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to

Flights by cabin class

Other flight options

Popular flights

Alternative routes for Washington, D.C. to Singapore

Dulles Intl to Singapore flights

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

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	CheapestS$ 2,419	AverageS$ 2,527	FlexibilityNo cancel fee	On-time62%	Search JetBlue 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$ 552

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21-3. 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

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 3 November 2026.

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 3 November 2026.

Best flights from Washington, D.C. to SingaporeDiscover 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 3 November 2026.

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 3 November 2026.

Last-minute flights from Washington, D.C. to SingaporeDiscover last-minute flight deals from Washington, D.C. to Singapore. Data last updated 3 November 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated 3 November 2026 and is based on user searches.

One-way flights from Washington, D.C. to SingaporeSearch for one-way flight options from Washington, D.C. to Singapore. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Search for one-way flight options from Washington, D.C. to Singapore. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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

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

The best time to book flights from Washington, D.C. to Singapore is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

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?

What is the cheapest month to book a flight 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.

Complete your trip

Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Washington, D.C. to Singapore by cabin class

Find flights from Washington, D.C. to Singapore, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Washington, D.C. and Singapore flights

Browse other Washington, D.C. and Singapore flight options. Last updated on 3 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

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

Fly with Cheapflights

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 3 November 2026.

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 3 November 2026.

Last-minute flights from Washington, D.C. to Singapore
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated 3 November 2026 and is based on user searches.

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 3 November 2026.