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

Gulf Air, Korean Air, and Air China can get you from Washington, D.C. to Singapore in just under 22h 40m. Your travel time can differ by up to 36h 06m. 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 ($1,039) 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), Turkish Airlines ($532), and Qatar Airways ($548).

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, United Airlines 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.

$490+ Cheap Flights from Washington, D.C. to Singapore

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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 August 9, 2026.

Tue 9/81:59 pm -

2 stops58h 46m

Tue 9/228:00 pm -

2 stops39h 10m

Deal found 8/8

$997

Tue 9/81:59 pm -

2 stops58h 46m

Thu 9/178:00 pm -

2 stops39h 10m

Deal found 8/6

$1,009

Tue 9/81:15 pm -

1 stop22h 40m

Wed 9/161:25 am -

1 stop21h 40m

Deal found 8/7

$1,014

Fri 9/411:00 pm -

1 stop29h 25m

Fri 9/119:00 am -

1 stop22h 30m

Deal found 8/5

$1,017

Tue 9/811:00 pm -

1 stop43h 50m

Thu 9/175:55 pm -

1 stop37h 35m

Deal found 8/5

$1,018

Tue 9/111:00 pm -

1 stop34h 55m

Mon 9/145:55 pm -

1 stop37h 35m

Deal found 8/6

$1,029

Thu 8/273:10 pm -

1 stop30h 30m

Fri 9/119:00 pm -

1 stop24h 45m

Deal found 8/5

$1,030

Fri 9/411:00 pm -

1 stop29h 25m

Thu 9/175:55 pm -

1 stop37h 35m

Deal found 8/7

$1,035

Mon 8/313:10 pm -

1 stop30h 30m

Mon 9/149:00 pm -

1 stop24h 45m

Deal found 8/6

$1,041

Mon 9/73:10 pm -

1 stop30h 30m

Wed 9/169:00 pm -

1 stop24h 45m

Deal found 8/7

$1,042

Sun 8/233:10 pm -

1 stop30h 30m

Thu 9/39:00 pm -

1 stop24h 45m

Deal found 8/5

$1,046

Mon 8/177:45 am -

2 stops28h 10m

Tue 8/251:25 am -

2 stops31h 08m

Deal found 8/9

$1,102

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 August 9, 2026.

Sat 8/296:00 am -

2 stops29h 55m

Wed 9/161:25 am -

1 stop21h 40m

Deal found 8/7

$1,120

Wed 8/197:45 am -

2 stops28h 10m

Wed 8/267:30 am -

2 stops26h 15m

Deal found 8/7

$1,126

Thu 11/52:35 pm -

1 stop30h 00m

Mon 11/97:25 pm -

1 stop26h 40m

Deal found 8/8

$1,133

Wed 1/61:30 pm -

1 stop31h 25m

Fri 1/224:35 am -

1 stop44h 10m

Deal found 8/6

$1,229

Thu 8/206:52 pm -

1 stop23h 23m

Thu 8/278:35 pm -

1 stop22h 40m

Deal found 8/9

$1,341

Sun 1/310:30 am -

2 stops36h 00m

Tue 1/269:20 pm -

2 stops47h 50m

Deal found 8/6

$1,347

Sat 1/26:55 pm -

1 stop32h 10m

Sat 1/2311:15 pm -

1 stop30h 50m

Deal found 8/6

$1,594

Sat 8/227:15 pm -

2 stops28h 40m

Sat 8/293:20 pm -

3 stops32h 23m

Deal found 8/7

$1,610

Wed 9/25:23 pm -

2 stops37h 07m

Sun 9/139:35 pm -

2 stops37h 35m

Deal found 8/7

$1,619

Wed 10/2811:40 am -

2 stops41h 10m

Sun 11/18:15 pm -

2 stops40h 44m

Deal found 8/8

$1,634

Sat 11/288:00 am -

2 stops27h 10m

Sat 12/510:40 am -

1 stop36h 10m

Deal found 8/8

$1,146

Sat 11/286:59 am -

2 stops28h 11m

Fri 12/41:35 am -

2 stops28h 02m

Deal found 8/8

$1,157

Mon 12/77:00 am -

2 stops28h 10m

Sun 12/131:35 am -

2 stops28h 53m

Deal found 8/6

$1,333

Mon 10/265:00 pm -

1 stop26h 00m

Tue 11/310:10 am -

1 stop25h 20m

Deal found 8/5

$1,341

Tue 9/85:45 pm -

1 stop24h 30m

Thu 9/178:35 pm -

2 stops28h 29m

Deal found 8/8

$1,341

Wed 8/199:39 am -

2 stops31h 21m

Mon 8/247:30 am -

2 stops28h 18m

Deal found 8/7

$1,425

Mon 1/46:55 pm -

1 stop32h 10m

Thu 1/2111:05 pm -

1 stop31h 00m

Deal found 8/6

$1,594

Thu 11/58:03 am -

2 stops31h 57m

Mon 11/910:30 pm -

1 stop24h 20m

Deal found 8/8

$1,326

Wed 1/65:45 pm -

2 stops35h 55m

Fri 1/2210:05 pm -

2 stops35h 54m

Deal found 8/6

$1,619

Wed 8/195:45 pm -

1 stop24h 30m

Thu 8/278:45 am -

1 stop25h 45m

Deal found 8/9

$1,341

Sun 1/36:55 pm -

1 stop32h 10m

Fri 1/2211:15 pm -

1 stop30h 50m

Deal found 8/6

$1,594

Wed 8/199:45 am -

1 stop32h 30m

Thu 8/278:45 am -

1 stop24h 37m

Deal found 8/9

$1,341

Tue 12/296:00 am -

2 stops34h 00m

Wed 1/610:30 pm -

2 stops26h 29m

Deal found 8/5

$1,547

Fri 12/259:45 pm -

1 stop31h 40m

Wed 1/1311:05 pm -

1 stop29h 35m

Deal found 8/8

$1,594

Tue 9/83:04 pm -

2 stops27h 11m

Thu 9/178:35 pm -

1 stop22h 40m

Deal found 8/5

$1,346

Wed 12/231:08 pm -

2 stops40h 32m

Sun 1/1710:05 pm -

2 stops35h 54m

Deal found 8/8

$1,879

Wed 12/239:55 pm -

1 stop29h 10m

Sun 1/1011:05 pm -

1 stop29h 35m

Deal found 8/5

$1,705

Sat 8/227:00 pm -

1 stop23h 15m

Sat 8/298:45 am -

1 stop25h 45m

Deal found 8/7

$1,430

Sat 11/288:05 am -

2 stops31h 55m

Sat 12/510:30 pm -

2 stops29h 21m

Deal found 8/8

$1,777

Mon 12/211:08 pm -

2 stops40h 32m

Mon 1/1810:05 pm -

2 stops35h 54m

Deal found 8/8

$1,979

Last-minute flights from Washington, D.C. to Singapore
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated August 9, 2026 and is based on user searches.

Mon 8/179:39 am -

2 stops26h 16m

Tue 8/2510:00 pm -

2 stops34h 33m

Deal found 8/9

$1,102

Sun 8/233:10 pm -

1 stop30h 30m

Thu 9/39:00 pm -

1 stop24h 45m

Deal found 8/5

$1,046

Thu 8/273:10 pm -

1 stop30h 30m

Fri 9/119:00 pm -

1 stop24h 45m

Deal found 8/5

$1,030

Mon 8/313:10 pm -

1 stop30h 30m

Mon 9/149:00 pm -

1 stop24h 45m

Deal found 8/6

$1,041

Tue 9/111:00 pm -

1 stop34h 55m

Mon 9/145:55 pm -

1 stop37h 35m

Deal found 8/6

$1,029

Fri 9/411:00 pm -

1 stop29h 25m

Fri 9/119:00 am -

1 stop22h 30m

Deal found 8/5

$1,017

Fri 9/411:00 pm -

1 stop29h 25m

Thu 9/175:55 pm -

1 stop37h 35m

Deal found 8/7

$1,035

Mon 9/73:10 pm -

1 stop30h 30m

Wed 9/169:00 pm -

1 stop24h 45m

Deal found 8/7

$1,042

Tue 9/81:59 pm -

2 stops58h 46m

Tue 9/228:00 pm -

2 stops39h 10m

Deal found 8/8

$997

Tue 9/81:59 pm -

2 stops58h 46m

Thu 9/178:00 pm -

2 stops39h 10m

Deal found 8/6

$1,009

Tue 9/81:15 pm -

1 stop22h 40m

Wed 9/161:25 am -

1 stop21h 40m

Deal found 8/7

$1,014

Tue 9/811:00 pm -

1 stop43h 50m

Thu 9/175:55 pm -

1 stop37h 35m

Deal found 8/5

$1,018

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 August 9, 2026.

Mon 9/73:10 pm -

1 stop30h 30m

Deal found 8/7

$490

Fri 9/119:27 am -

3 stops48h 03m

Deal found 8/8

$511

Tue 9/154:36 pm -

3 stops48h 24m

Deal found 8/5

$511

Sun 9/1311:12 am -

3 stops53h 48m

Deal found 8/5

$512

Wed 9/2310:22 am -

3 stops54h 38m

Deal found 8/8

$513

Wed 9/237:00 am -

3 stops52h 55m

Deal found 8/8

$513

Tue 8/2511:00 pm -

1 stop29h 25m

Deal found 8/7

$513

Wed 9/94:36 pm -

3 stops48h 24m

Deal found 8/5

$514

Sun 9/207:00 am -

3 stops58h 00m

Deal found 8/6

$516

Thu 9/1011:12 am -

3 stops38h 38m

Deal found 8/5

$516

Fri 9/1111:12 am -

3 stops46h 18m

Deal found 8/5

$519

Tue 8/1811:00 pm -

1 stop43h 50m

Deal found 8/6

$520

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$997 (FlightHub)
One-way from	$490 (Expedia)
Popular in	December
Cheapest in	February
Average price	$1,150

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 ($137 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($66 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 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

Sat 8/29

6:00 am-11:55 pm

2 stops29h 55m

Singapore Changi

Wed 9/16

1:25 am-11:05 am

1 stop21h 40m

$1,120

Washington, D.C.Singapore

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

DCASIN

Washington, D.C. Reagan-National

Wed 8/19

7:45 am-11:55 pm

2 stops28h 10m

Singapore Changi

Wed 8/26

7:30 am-9:45 pm

2 stops26h 15m

$1,126

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Thu 11/5

2:35 pm-9:35 am

1 stop30h 00m

Singapore Changi

Mon 11/9

7:25 pm-9:05 am

1 stop26h 40m

$1,133

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Sat 11/28

8:00 am-12:10 am

2 stops27h 10m

Singapore Changi

Sat 12/5

10:40 am-9:50 am

1 stop36h 10m

$1,146

Washington, D.C.Singapore

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

DCASIN

Washington, D.C. Reagan-National

Sat 11/28

6:59 am-12:10 am

2 stops28h 11m

Singapore Changi

Fri 12/4

1:35 am-4:37 pm

2 stops28h 02m

$1,157

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Wed 1/6

1:30 pm-9:55 am

1 stop31h 25m

Singapore Changi

Fri 1/22

4:35 am-11:45 am

1 stop44h 10m

$1,229

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Thu 11/5

8:03 am-5:00 am

2 stops31h 57m

Singapore Changi

Mon 11/9

10:30 pm-9:50 am

1 stop24h 20m

$1,326

Washington, D.C.Singapore

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

IADSIN

Washington, D.C. Dulles Intl

Mon 12/7

7:00 am-12:10 am

2 stops28h 10m

Singapore Changi

Sun 12/13

1:35 am-5:28 pm

2 stops28h 53m

$1,333

Quickest round-trip

BaltimoreSingapore

BWI Baltimore/Washington - SIN Singapore Changi

BWISIN

Baltimore/Washington

Thu 8/20

6:52 pm-6:15 am

1 stop23h 23m

Singapore Changi

Thu 8/27

8:35 pm-7:15 am

1 stop22h 40m

$1,341

Washington, D.C.Singapore

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

DCASIN

Washington, D.C. Reagan-National

Mon 10/26

5:00 pm-7:00 am

1 stop26h 00m

Singapore Changi

Tue 11/3

10:10 am-10:30 pm

1 stop25h 20m

$1,341

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/5

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 August.

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

DCA-SIN

IAD-SIN

BWI-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

DCA-SIN

IAD-SIN

BWI-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 $1,029). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of $1,979). 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 $1,146 and $1,354 in September.
The cheapest round-trip price found within the last 5 days was $997 on Gulf Air (Sep 8-Sep 22).

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 85 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 Qatar Airways,Turkish Airlines, andUnited Airlines 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.

Qatar Airways

7.4

Good

3,739 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2024

IAD - DOH

The cabin crew was courteous and helped ensure that our flight was comfortable by taking time to fulfill our meal orders, snacks, and making sure our carry-on luggage was placed in an overhead bin near our assigned seat.

Qatar Airways

7.4

Good

3,739 reviews

Qatar Airways

7.4

Good

3,739 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2024

IAD - DOH

Turkish Airlines

7.4

Good

4,476 reviews

Qatar Airways

7.4

Good

3,739 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2024

IAD - DOH

United Airlines

7.4

Good

10,090 reviews

Qatar Airways

7.4

Good

3,739 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2024

IAD - DOH

Etihad Airways

7.3

Good

1,500 reviews

Qatar Airways

7.4

Good

3,739 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2024

IAD - DOH

JetBlue

7.1

Good

3,032 reviews

Qatar Airways

7.4

Good

3,739 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Aug 2024

IAD - DOH

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?
Gulf Air, Korean Air, and Air China can get you from Washington, D.C. to Singapore in just under 22h 40m. Your travel time can differ by up to 36h 06m. 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 ($1,039) 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), Turkish Airlines ($532), and Qatar Airways ($548).
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 $1,029). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of $1,979). 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

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

Airline	Cheapest	Average	Flexibility	On-time
Etihad Airways	Cheapest$826	Average$1,051	FlexibilityNo cancel fee	On-time75%
Turkish Airlines	Cheapest$938	Average$1,136	FlexibilityNo cancel fee	On-time77%
Qatar Airways	Cheapest$1,039	Average$1,226	FlexibilityNo cancel fee	On-time68%
Korean Air	Cheapest$1,069	Average$1,294	FlexibilityNo cancel fee	On-time81%
United Airlines	Cheapest$1,124	Average$1,421	FlexibilityNo cancel fee	On-time69%
JetBlue	Cheapest$1,298	Average$2,079	FlexibilityNo cancel fee	On-time62%

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$490+ Cheap flights from Washington, D.C. (WAS) to Singapore (SIN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel.

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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 August 9, 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 August 9, 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 August 9, 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 August 9, 2026.

Last-minute flights from Washington, D.C. to SingaporeDiscover last-minute flight deals from Washington, D.C. to Singapore. Data last updated August 9, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated August 9, 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 August 9, 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 August 9, 2026.

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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 August.

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 $1,146 and $1,354 in September.The cheapest round-trip price found within the last 5 days was $997 on Gulf Air (Sep 8-Sep 22).

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 85 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 Qatar Airways,Turkish Airlines, andUnited Airlines 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?

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Alternative routes for Washington, D.C. to Singapore

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Washington, D.C. and Singapore flights

Browse other Washington, D.C. and Singapore flight options. Last updated on August 9, 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 August 9, 2026.

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Other flights to Singapore

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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

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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 August 9, 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 August 9, 2026.

Last-minute flights from Washington, D.C. to Singapore
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated August 9, 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 August 9, 2026.

Washington, D.C. to Singapore flights typically cost between $1,146 and $1,354 in September.
The cheapest round-trip price found within the last 5 days was $997 on Gulf Air (Sep 8-Sep 22).