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

Ethiopian Air, Etihad Airways, and Korean Air can get you from Washington, D.C. to Singapore in just under 30h. Your travel time can differ by up to 13h 35m. The distance between Washington, D.C. and Singapore is about 9644 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Washington, D.C. to Singapore round-trip?

According to our current data, Etihad Airways ($826), Turkish Airlines ($938), and Qatar Airways ($1,011) offers the cheapest pricing from Washington, D.C. to Singapore. Users have found that Etihad Airways is 37% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Washington, D.C. to Singapore one-way?

The cheapest airlines for a one-way flight from Washington, D.C. to Singapore are Etihad Airways ($479), Qatar Airways ($485), and Turkish Airlines ($532).

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

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 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

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

The most popular route from Washington, D.C. to Singapore is Washington, D.C. Dulles Intl - Singapore Changi. You may also consider Washington, D.C. Reagan-National - Singapore Changi or Baltimore/Washington - Singapore Changi.

What are the most popular airlines that fly from Washington, D.C. to Singapore?

When booking a flight from Washington, D.C. to Singapore, you may want to consider flying on Turkish Airlines, JetBlue or Qatar Airways as they are the most popular for this route.

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

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.

Most accurate provider : When it comes to deals on Washington, D.C.-Singapore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Singapore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Singapore flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C.-Singapore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Singapore from Washington, D.C.?

For a flight from Washington, D.C. to Singapore, you will be flying into Changi. Singapore Changi (SIN) is just 10.5 mi from the center of the city. Changi is the only Singapore airport and it handles 0 inbound flights from Washington, D.C. per day. 6 airlines have flights to Singapore Changi from Washington, D.C. on a regular basis.

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 vacation 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.

$444+ Cheap Flights from Washington, D.C. to Singapore

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

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

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 September 23, 2026.

Wed 11/410:00 am -

1 stop39h 50m

Tue 11/102:00 am -

1 stop43h 00m

Deal found 9/20

$854

Thu 11/1910:00 am -

1 stop39h 50m

Sat 11/282:00 am -

2 stops43h 00m

Deal found 9/22

$885

Fri 11/2010:00 am -

1 stop39h 50m

Sat 11/282:00 am -

2 stops43h 00m

Deal found 9/20

$887

Thu 11/1210:00 am -

1 stop39h 50m

Sun 11/292:00 am -

2 stops43h 00m

Deal found 9/19

$888

Fri 11/1310:00 am -

1 stop39h 50m

Sun 11/292:00 am -

2 stops43h 00m

Deal found 9/20

$891

Tue 11/1010:00 am -

1 stop39h 50m

Sun 11/292:00 am -

1 stop43h 00m

Deal found 9/20

$898

Thu 11/510:00 am -

1 stop39h 50m

Fri 11/202:00 am -

1 stop43h 00m

Deal found 9/21

$909

Thu 11/1211:05 am -

2 stops30h 55m

Tue 11/248:40 am -

2 stops38h 49m

Deal found 9/19

$1,040

Thu 11/56:00 am -

2 stops36h 00m

Thu 11/128:40 am -

2 stops38h 49m

Deal found 9/21

$1,042

Tue 11/36:00 am -

2 stops36h 00m

Tue 11/108:40 am -

2 stops38h 49m

Deal found 9/19

$1,048

Thu 11/196:00 am -

2 stops36h 00m

Thu 12/38:40 am -

2 stops38h 49m

Deal found 9/19

$1,056

Tue 10/202:56 pm -

2 stops57h 49m

Tue 10/278:00 pm -

2 stops38h 57m

Deal found 9/20

$1,057

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 layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.

Fri 11/2010:00 am -

1 stop39h 50m

Sat 11/282:00 am -

1 stop43h 00m

Deal found 9/22

$897

Wed 1/202:35 pm -

1 stop30h 00m

Wed 1/277:25 pm -

1 stop26h 40m

Deal found 9/20

$1,040

Mon 11/211:50 am -

1 stop43h 35m

Tue 11/101:40 am -

2 stops25h 14m

Deal found 9/20

$1,077

Wed 11/47:18 am -

2 stops39h 32m

Wed 11/116:00 pm -

2 stops36h 53m

Deal found 9/20

$1,195

Fri 11/138:05 am -

2 stops31h 55m

Fri 11/2010:30 am -

1 stop36h 20m

Deal found 9/19

$1,217

Thu 10/811:05 am -

2 stops25h 05m

Tue 10/139:15 pm -

2 stops30h 40m

Deal found 9/21

$1,265

Tue 10/137:02 am -

2 stops29h 43m

Wed 10/217:20 am -

2 stops34h 00m

Deal found 9/22

$1,284

Tue 3/96:00 pm -

1 stop25h 00m

Tue 3/1610:10 am -

1 stop23h 49m

Deal found 9/23

$1,341

Fri 10/910:55 am -

2 stops36h 35m

Fri 10/169:30 pm -

2 stops47h 20m

Deal found 9/21

$1,465

Fri 12/116:55 pm -

1 stop32h 10m

Tue 12/2211:15 pm -

1 stop30h 50m

Deal found 9/22

$1,594

Fri 11/1310:00 am -

1 stop39h 50m

Sat 11/212:00 am -

2 stops43h 00m

Deal found 9/18

$899

Tue 12/151:30 pm -

1 stop30h 15m

Thu 1/1410:25 am -

1 stop38h 20m

Deal found 9/18

$1,798

Fri 10/165:57 pm -

2 stops36h 33m

Thu 10/2910:05 pm -

2 stops36h 50m

Deal found 9/21

$1,964

Fri 10/233:10 pm -

1 stop30h 30m

Fri 10/305:00 pm -

2 stops29h 05m

Deal found 9/19

$1,278

Tue 3/96:10 am -

2 stops33h 50m

Tue 3/1610:30 am -

2 stops24h 59m

Deal found 9/21

$1,284

Sat 1/166:40 am -

2 stops28h 35m

Sat 1/301:40 am -

2 stops28h 50m

Deal found 9/20

$1,289

Mon 3/15:50 pm -

2 stops29h 00m

Mon 3/87:30 am -

2 stops35h 01m

Deal found 9/21

$1,294

Thu 10/226:29 am -

2 stops35h 46m

Thu 10/2910:10 am -

2 stops31h 24m

Deal found 9/21

$1,346

Tue 3/92:35 pm -

1 stop30h 00m

Mon 3/155:00 pm -

2 stops29h 05m

Deal found 9/21

$1,282

Thu 12/39:30 am -

2 stops32h 25m

Thu 12/1710:10 am -

1 stop25h 20m

Deal found 9/19

$1,351

Thu 11/126:55 pm -

1 stop34h 30m

Mon 11/1611:05 pm -

1 stop31h 00m

Deal found 9/19

$1,594

Wed 1/139:30 am -

2 stops38h 35m

Tue 1/192:00 am -

3 stops34h 45m

Deal found 9/18

$1,335

Sun 10/41:15 pm -

2 stops29h 25m

Tue 10/208:45 am -

1 stop26h 08m

Deal found 9/18

$1,351

Sun 12/136:55 pm -

1 stop34h 30m

Thu 1/1411:15 pm -

1 stop30h 50m

Deal found 9/18

$1,703

Fri 12/116:55 pm -

1 stop32h 10m

Sat 12/1911:05 pm -

1 stop31h 00m

Deal found 9/22

$1,705

Sat 1/1612:40 pm -

2 stops30h 20m

Sun 1/3110:10 am -

1 stop25h 19m

Deal found 9/21

$1,692

Wed 11/185:12 pm -

2 stops33h 53m

Sun 11/2211:05 pm -

1 stop31h 00m

Deal found 9/18

$1,780

Sat 12/510:30 am -

2 stops32h 30m

Sun 1/1010:20 pm -

3 stops30h 45m

Deal found 9/18

$1,697

Wed 11/46:55 pm -

1 stop32h 10m

Wed 11/1111:05 pm -

2 stops31h 12m

Deal found 9/20

$1,793

Sat 10/247:28 am -

1 stop24h 47m

Sat 10/3110:10 am -

2 stops24h 33m

Deal found 9/22

$1,917

Last-minute flights from Washington, D.C. to Singapore
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated September 23, 2026 and is based on user searches.

Thu 10/83:10 pm -

1 stop30h 30m

Wed 10/219:00 pm -

1 stop24h 45m

Deal found 9/21

$1,001

Thu 10/83:10 pm -

1 stop30h 30m

Tue 10/139:00 pm -

1 stop24h 45m

Deal found 9/18

$1,020

Mon 10/123:10 pm -

1 stop30h 30m

Wed 10/219:00 pm -

1 stop24h 45m

Deal found 9/21

$1,006

Tue 10/133:10 pm -

1 stop30h 30m

Tue 10/277:25 pm -

1 stop26h 40m

Deal found 9/23

$984

Thu 10/153:10 pm -

1 stop30h 30m

Sun 10/257:25 pm -

1 stop26h 40m

Deal found 9/22

$1,021

Thu 10/153:10 pm -

1 stop30h 30m

Thu 10/297:25 pm -

1 stop26h 40m

Deal found 9/19

$1,025

Thu 10/153:10 pm -

1 stop30h 30m

Wed 10/219:00 pm -

1 stop24h 45m

Deal found 9/19

$1,027

Fri 10/163:10 pm -

1 stop30h 30m

Thu 10/297:25 pm -

1 stop26h 40m

Deal found 9/20

$1,002

Tue 10/203:10 pm -

1 stop30h 30m

Tue 10/277:25 pm -

1 stop26h 40m

Deal found 9/20

$1,024

Tue 10/202:56 pm -

2 stops57h 49m

Tue 10/278:00 pm -

2 stops38h 57m

Deal found 9/20

$1,057

Thu 10/223:10 pm -

1 stop30h 30m

Thu 10/297:25 pm -

1 stop26h 40m

Deal found 9/21

$1,014

Sat 10/313:35 pm -

1 stop30h 00m

Sat 11/77:25 pm -

1 stop26h 40m

Deal found 9/21

$982

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 September 23, 2026.

Wed 11/411:35 pm -

2 stops46h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/21

$444

Sun 11/111:35 pm -

2 stops56h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$453

Sun 10/2511:30 am -

2 stops41h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$475

Sat 10/173:10 pm -

1 stop30h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/21

$478

Fri 10/163:10 pm -

1 stop30h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$484

Mon 10/123:10 pm -

1 stop30h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$490

Wed 1/272:35 pm -

1 stop30h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$491

Mon 11/22:35 pm -

1 stop30h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$492

Wed 2/242:35 pm -

1 stop30h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$495

Thu 10/89:58 am -

2 stops35h 42m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/18

$509

Fri 10/169:58 am -

2 stops35h 42m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$521

Thu 1/281:30 pm -

2 stops58h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$523

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$854 (Traveloka)
One-way from	$444 (Kiwi.com)
Popular in	December
Cheapest in	February
Average price	$1,338

Provider with most accurate pricing for Washington, D.C. (WAS)-Singapore Changi flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Singapore Changi flights.

Search Deals

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($136 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($67 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 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 round-trip

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 1/27

2:35 pm-9:35 am

1 stop30h 00m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$510

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Thu 1/28

2:35 pm-9:35 am

1 stop30h 00m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$510

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 2/24

2:35 pm-9:35 am

1 stop30h 00m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$510

BaltimoreSingapore

BWI Baltimore/Washington - SIN Singapore Changi

BWISIN

Baltimore/Washington

Sat 10/17

10:22 am-9:40 am

3 stops35h 18m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$541

Washington, D.C.Singapore

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

DCASIN

Washington, D.C. Reagan-National

Wed 11/4

6:00 am-5:00 am

2 stops34h 00m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$551

Washington, D.C.Singapore

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

DCASIN

Washington, D.C. Reagan-National

Thu 1/28

1:30 pm-12:50 pm

2 stops58h 20m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$551

Washington, D.C.Singapore

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

DCASIN

Washington, D.C. Reagan-National

Mon 10/5

7:45 am-5:00 am

2 stops33h 15m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$551

Washington, D.C.Singapore

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

DCASIN

Washington, D.C. Reagan-National

Tue 11/3

6:10 am-5:00 am

2 stops33h 50m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$551

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Tue 10/13

6:12 pm-7:15 pm

2 stops37h 03m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$551

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Thu 11/5

6:05 am-5:00 am

2 stops33h 55m

Singapore Changi

Wed 12/31

12:00 am-11:30 am

Nonstop0h 00m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/19

Showing 1-10 of 60 resultsSorted by cheapest first

...

Compare providers for flights from Washington, D.C. to Singapore

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Singapore in September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C.-Singapore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Singapore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Singapore flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C.-Singapore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

WAS-SIN

IAD-SIN

BWI-SIN

DCA-SIN

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 Washington, D.C. to Singapore

WAS-SIN

IAD-SIN

BWI-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 $964). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of $2,011). 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 much does it cost to fly round-trip from Washington, D.C. to Singapore?

Airfare is below average for this route at the moment.

Washington, D.C. to Singapore flights typically cost between $1,186 and $1,413 in November.
The cheapest round-trip price found within the last 5 days was $854 on Ethiopian Air (Nov 4-Nov 10).

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Singapore, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Singapore

Get a feel of what it's like to fly with Turkish Airlines,United Airlines, andQatar Airways from Washington, D.C. to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Turkish Airlines

7.4

Good

4,464 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Sep 2026

LAX - IST

The plane was old, dirty and ground staff are not good. They are stand offish and unfriendly.

Turkish Airlines

7.4

Good

4,464 reviews

Turkish Airlines

7.4

Good

4,464 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Sep 2026

LAX - IST

The plane was old, dirty and ground staff are not good. They are stand offish and unfriendly.

United Airlines

7.4

Good

10,231 reviews

Turkish Airlines

7.4

Good

4,464 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Sep 2026

LAX - IST

The plane was old, dirty and ground staff are not good. They are stand offish and unfriendly.

Qatar Airways

7.3

Good

3,732 reviews

Turkish Airlines

7.4

Good

4,464 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Sep 2026

LAX - IST

The plane was old, dirty and ground staff are not good. They are stand offish and unfriendly.

Etihad Airways

7.3

Good

1,533 reviews

Turkish Airlines

7.4

Good

4,464 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Sep 2026

LAX - IST

The plane was old, dirty and ground staff are not good. They are stand offish and unfriendly.

JetBlue

7.1

Good

3,039 reviews

Turkish Airlines

7.4

Good

4,464 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Sep 2026

LAX - IST

The plane was old, dirty and ground staff are not good. They are stand offish and unfriendly.

Related info for your journey

What airport do you fly into for flights to Singapore from Washington, D.C.?
For a flight from Washington, D.C. to Singapore, you will be flying into Changi. Singapore Changi (SIN) is just 10.5 mi from the center of the city. Changi is the only Singapore airport and it handles 0 inbound flights from Washington, D.C. per day. 6 airlines have flights to Singapore Changi from Washington, D.C. on a regular basis.
How long is the flight from Washington, D.C. to Singapore?
Ethiopian Air, Etihad Airways, and Korean Air can get you from Washington, D.C. to Singapore in just under 30h. Your travel time can differ by up to 13h 35m. The distance between Washington, D.C. and Singapore is about 9644 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Washington, D.C. to Singapore round-trip?
According to our current data, Etihad Airways ($826), Turkish Airlines ($938), and Qatar Airways ($1,011) offers the cheapest pricing from Washington, D.C. to Singapore. Users have found that Etihad Airways is 37% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Washington, D.C. to Singapore one-way?
The cheapest airlines for a one-way flight from Washington, D.C. to Singapore are Etihad Airways ($479), Qatar Airways ($485), and Turkish Airlines ($532).
What are the most popular routes from Washington, D.C. to Singapore?
The most popular route from Washington, D.C. to Singapore is Washington, D.C. Dulles Intl - Singapore Changi. You may also consider Washington, D.C. Reagan-National - Singapore Changi or Baltimore/Washington - Singapore Changi.
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 vacation 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 $964). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of $2,011). 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

Flights by cabin class

Other flight options

Other flights from Washington, D.C.

Popular flights

Singapore flight routes

Top destinations

Alternative routes for Washington, D.C. to Singapore

Dulles Intl to Singapore flights

Top 6 airlines flying from Washington, D.C. to Singapore

Airline	Cheapest	Average	Flexibility	On-time
Etihad Airways	Cheapest$826	Average$1,119	FlexibilityNo cancel fee	On-time75%
Turkish Airlines	Cheapest$938	Average$1,159	FlexibilityNo cancel fee	On-time77%
Qatar Airways	Cheapest$1,011	Average$1,189	FlexibilityNo cancel fee	On-time68%
Korean Air	Cheapest$1,069	Average$1,154	FlexibilityNo cancel fee	On-time81%
United Airlines	Cheapest$1,124	Average$1,727	FlexibilityNo cancel fee	On-time69%
JetBlue	Cheapest$1,314	Average$2,103	FlexibilityNo cancel fee	On-time62%

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.

$444+ Cheap flights from Washington, D.C. (WAS) to Singapore (SIN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 September 23, 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 September 23, 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 layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.

Discover carefully curated flight deals from Washington, D.C. to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.

Last-minute flights from Washington, D.C. to SingaporeDiscover last-minute flight deals from Washington, D.C. to Singapore. Data last updated September 23, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated September 23, 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 September 23, 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 September 23, 2026.

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

Most accurate provider

Most trusted provider

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.

Compare providers for flights from Washington, D.C. to Singapore

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Singapore in September.

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 much does it cost to fly round-trip from Washington, D.C. to Singapore?

Airfare is below average for this route at the moment.

Washington, D.C. to Singapore flights typically cost between $1,186 and $1,413 in November.The cheapest round-trip price found within the last 5 days was $854 on Ethiopian Air (Nov 4-Nov 10).

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Singapore, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Singapore

Get a feel of what it's like to fly with Turkish Airlines,United Airlines, andQatar Airways from Washington, D.C. to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Singapore from Washington, D.C.?

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

What are the cheapest airlines flying from Washington, D.C. to Singapore round-trip?

What are the cheapest airlines to fly from Washington, D.C. to Singapore one-way?

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.

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 September 23, 2026.

Other flights from Washington, D.C.

Browse through other flights departing from Washington, D.C.. Flights are based on user searches made on Cheapflights and were last updated on September 23, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Other flights to Singapore

Explore flights to Singapore departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 23, 2026.

Washington, D.C. to Singapore flights

Consider these flights traveling from Washington, D.C. to Singapore.

Top 6 airlines flying from Washington, D.C. to Singapore

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 September 23, 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 layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.

Last-minute flights from Washington, D.C. to Singapore
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated September 23, 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 September 23, 2026.

Washington, D.C. to Singapore flights typically cost between $1,186 and $1,413 in November.
The cheapest round-trip price found within the last 5 days was $854 on Ethiopian Air (Nov 4-Nov 10).