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

A quick flight from Washington, D.C. to Singapore can take about 32h 01m. United Airlines provides one of the quickest options available for as low as S$ 1,918. Airlines will cover a distance of 15532 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, Baltimore/Washington - Singapore Changi or Washington, D.C. Reagan-National - 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$ 567+ 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 19 October 2026.

Thu 12-1106:00 -

2 stops36h 00m

Fri 20-1108:40 -

2 stops38h 44m

Deal found 16-10S$ 1,532

Sun 8-1114:25 -

1 stop30h 10m

Fri 13-1109:15 -

3 stops36h 45m

Deal found 14-10S$ 1,532

Thu 12-1109:55 -

2 stops32h 05m

Fri 20-1108:40 -

2 stops39h 48m

Deal found 15-10S$ 1,534

Mon 26-1009:30 -

2 stops33h 25m

Tue 3-1122:20 -

2 stops26h 44m

Deal found 18-10S$ 1,537

Sun 29-1117:29 -

2 stops48h 26m

Wed 13-122:20 -

2 stops30h 53m

Deal found 14-10S$ 1,538

Tue 1-1208:07 -

2 stops31h 53m

Mon 7-1201:40 -

2 stops28h 53m

Deal found 17-10S$ 1,539

Mon 2-1114:25 -

3 stops34h 15m

Tue 17-1105:10 -

1 stop27h 15m

Deal found 14-10S$ 1,541

Thu 3-1209:55 -

3 stops35h 30m

Thu 10-1217:45 -

1 stop37h 45m

Deal found 19-10S$ 1,542

Sun 15-1106:00 -

2 stops36h 00m

Thu 26-1108:40 -

2 stops38h 44m

Deal found 16-10S$ 1,543

Tue 24-1117:30 -

1 stop34h 50m

Wed 30-1223:45 -

1 stop28h 50m

Deal found 16-10S$ 1,543

Thu 3-1206:59 -

2 stops33h 01m

Wed 9-1201:40 -

2 stops27h 51m

Deal found 19-10S$ 1,544

Sun 29-1117:25 -

2 stops24h 25m

Wed 13-123:45 -

1 stop28h 50m

Deal found 14-10S$ 1,544

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 19 October 2026.

Sat 13-214:25 -

1 stop30h 10m

Mon 8-317:00 -

2 stops29h 00m

Deal found 16-10S$ 1,555

Wed 2-1222:19 -

1 stop32h 56m

Sat 16-110:45 -

2 stops33h 05m

Deal found 17-10S$ 1,569

Thu 25-310:05 -

2 stops46h 20m

Sat 3-407:30 -

1 stop39h 45m

Deal found 14-10S$ 1,585

Thu 12-1106:00 -

2 stops34h 40m

Mon 16-1114:05 -

2 stops28h 33m

Deal found 15-10S$ 1,643

Tue 3-1110:35 -

2 stops35h 55m

Sun 15-1121:20 -

2 stops48h 15m

Deal found 15-10S$ 1,768

Tue 24-1117:14 -

2 stops36h 26m

Wed 30-1222:05 -

2 stops36h 08m

Deal found 16-10S$ 2,063

Thu 3-1222:15 -

2 stops31h 10m

Sun 17-123:15 -

2 stops31h 04m

Deal found 18-10S$ 2,406

Thu 12-1114:25 -

1 stop30h 10m

Tue 24-1117:00 -

2 stops29h 00m

Deal found 15-10S$ 1,574

Tue 1-1208:15 -

2 stops34h 45m

Fri 15-110:45 -

2 stops33h 00m

Deal found 16-10S$ 1,575

Thu 19-1108:05 -

2 stops31h 55m

Mon 23-1122:30 -

2 stops26h 07m

Deal found 18-10S$ 1,608

Thu 3-1211:10 -

1 stop30h 45m

Sun 17-110:45 -

2 stops33h 00m

Deal found 18-10S$ 1,575

Thu 15-418:26 -

2 stops27h 14m

Fri 30-421:00 -

2 stops36h 44m

Deal found 15-10S$ 1,654

Thu 1-415:35 -

2 stops27h 05m

Sat 10-409:00 -

2 stops32h 25m

Deal found 18-10S$ 1,585

Fri 20-1107:59 -

2 stops32h 01m

Tue 24-1110:30 -

2 stops26h 16m

Deal found 15-10S$ 1,918

Sat 31-1022:10 -

2 stops34h 05m

Sun 15-1122:20 -

2 stops26h 32m

Deal found 15-10S$ 1,610

Tue 6-418:00 -

1 stop24h 45m

Tue 13-409:00 -

2 stops23h 43m

Deal found 16-10S$ 1,735

Wed 30-1208:20 -

2 stops31h 40m

Wed 13-122:30 -

2 stops31h 27m

Deal found 19-10S$ 2,243

Sun 15-1118:06 -

3 stops37h 09m

Thu 26-1122:20 -

2 stops27h 09m

Deal found 16-10S$ 1,763

Tue 24-1113:15 -

2 stops28h 40m

Tue 29-1222:20 -

2 stops30h 53m

Deal found 16-10S$ 1,775

Sat 7-1117:49 -

1 stop37h 26m

Mon 16-1122:20 -

1 stop31h 25m

Deal found 15-10S$ 1,826

Sat 13-317:30 -

1 stop25h 30m

Tue 30-309:00 -

1 stop24h 53m

Deal found 19-10S$ 2,074

Sat 13-212:40 -

2 stops30h 20m

Mon 8-310:10 -

1 stop23h 29m

Deal found 18-10S$ 2,074

Mon 12-412:40 -

2 stops30h 05m

Sun 18-409:00 -

1 stop24h 53m

Deal found 16-10S$ 2,527

Fri 19-217:59 -

1 stop25h 01m

Sat 6-310:10 -

1 stop23h 29m

Deal found 16-10S$ 2,573

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

Round-trip from	S$ 1,529
One-way from	S$ 567
Popular in	December
Cheapest in	February
Average price	S$ 1,501

ANA
9-2-22-2
4 total stops
55h 18m total
Washington, D.C. to Singapore

Search Deals

25-11-31-12
2 total stops
46h 45m total
Washington, D.C. to Singapore

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (S$ 258 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (S$ 120 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 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 5-11

14:56-12:50

2 stops56h 54m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 674

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Tue 19-1

07:05-20:25

2 stops48h 20m

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 18-1

06:10-00:15

2 stops29h 05m

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

Wed 27-1

08:20-00:15

2 stops26h 55m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 695

Washington, D.C.Singapore

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

DCASIN

Washington, D.C. Reagan-National

Wed 20-1

08:20-00:15

2 stops26h 55m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 695

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 27-1

18:30-20:25

2 stops60h 55m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 709

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sat 13-2

11:50-05:00

1 stop28h 10m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 770

Washington, D.C.Singapore

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

DCASIN

Washington, D.C. Reagan-National

Fri 12-3

08:20-20:25

2 stops47h 05m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 778

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Thu 25-2

07:00-05:00

2 stops33h 00m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 787

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 30-12

14:25-09:35

1 stop30h 10m

Singapore Changi

Wed 31-12

00:00-11:30

Nonstop0h 00m

S$ 804

Flights are sorted by cheapest return flights first.

Deals found on 19-10

Showing 1-10 of 43 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$ 1,241). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 2,609). 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 82 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 32h 01m. United Airlines provides one of the quickest options available for as low as S$ 1,918. 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, Baltimore/Washington - Singapore Changi or Washington, D.C. Reagan-National - 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$ 1,241). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 2,609). 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$ 2,421	AverageS$ 2,528	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$ 567

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25-11. 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

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 19 October 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 19 October 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 19 October 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 19 October 2026.

Last-minute flights from Washington, D.C. to SingaporeDiscover last-minute flight deals from Washington, D.C. to Singapore. Data last updated 19 October 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated 19 October 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 19 October 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 19 October 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 82 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 19 October 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 19 October 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 19 October 2026.

Last-minute flights from Washington, D.C. to Singapore
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated 19 October 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 19 October 2026.