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

Korean Air, United Airlines, and Delta can get you from Washington, D.C. to Singapore in just under 33h 40m. Your travel time can differ by up to 2h 20m. 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 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 Turkish Airlines ($433), Etihad Airways ($481), and Qatar Airways ($510).

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, Qatar Airways or United Airlines as they are the most popular for this route.

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.

$411+ 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 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 December 18, 2025.

Mon 12/296:30 amIAD - SIN

1 stop24h 45mMultiple Airlines

Wed 1/1410:45 amSIN - IAD

1 stop41h 55mMultiple Airlines

Deal found 12/17

$1,501

Sat 12/276:01 pmIAD - SIN

1 stop37h 14mUnited Airlines

Sun 1/1110:45 amSIN - IAD

1 stop35h 25mUnited Airlines

Deal found 12/17

$1,611

Wed 12/175:59 pmDCA - SIN

1 stop25h 01mUnited Airlines

Wed 12/3110:10 amSIN - DCA

1 stop24h 33mUnited Airlines

Deal found 12/16

$1,733

Wed 12/179:00 amIAD - SIN

2 stops34h 00mUnited Airlines

Wed 12/2410:20 pmSIN - IAD

1 stop22h 00mUnited Airlines

Deal found 12/16

$1,737

Sat 12/278:00 amBWI - SIN

1 stop47h 15mUnited Airlines

Sun 1/1110:20 pmSIN - BWI

1 stop22h 12mUnited Airlines

Deal found 12/17

$1,758

Sat 12/2710:05 pmIAD - SIN

1 stop33h 10mUnited Airlines

Wed 1/710:20 pmSIN - IAD

1 stop21h 27mUnited Airlines

Deal found 12/17

$1,804

Wed 12/1710:40 amIAD - SIN

1 stop21h 35mQatar Airways

Wed 12/248:15 pmSIN - IAD

1 stop32h 40mQatar Airways

Deal found 12/16

$1,807

Sat 12/276:30 amBWI - SIN

1 stop24h 45mUnited Airlines

Wed 1/710:10 amSIN - BWI

2 stops25h 15mUnited Airlines

Deal found 12/16

$1,904

Wed 12/246:30 amBWI - SIN

1 stop24h 45mUnited Airlines

Wed 1/710:10 amSIN - BWI

2 stops25h 15mUnited Airlines

Deal found 12/16

$1,929

Thu 12/256:01 pmIAD - SIN

1 stop24h 59mUnited Airlines

Tue 1/610:20 pmSIN - IAD

1 stop21h 27mUnited Airlines

Deal found 12/17

$1,966

Wed 12/2410:10 pmIAD - SIN

2 stops33h 05mUnited Airlines

Thu 1/110:10 amSIN - IAD

2 stops32h 42mUnited Airlines

Deal found 12/15

$1,970

Mon 12/296:57 pmDCA - SIN

2 stops52h 08mEVA Air

Wed 1/141:15 pmSIN - DCA

2 stops43h 45mEVA Air

Deal found 12/17

$1,993

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 December 18, 2025.

Sun 4/57:20 amIAD - SIN

2 stops33h 40mKorean Air

Tue 4/217:30 amSIN - IAD

1 stop39h 45mKorean Air

Deal found 12/17

$1,183

Wed 1/147:00 amDCA - SIN

1 stop36h 00mUnited Airlines

Fri 1/2310:20 pmSIN - DCA

2 stops26h 09mUnited Airlines

Deal found 12/16

$1,186

Fri 4/107:20 amIAD - SIN

2 stops33h 40mDelta

Tue 4/217:30 amSIN - IAD

2 stops25h 46mDelta

Deal found 12/17

$1,188

Sun 4/56:55 pmBWI - SIN

2 stops29h 05mEVA Air

Tue 5/53:10 pmSIN - BWI

2 stops26h 12mEVA Air

Deal found 12/17

$1,207

Sat 1/317:55 pmBWI - SIN

2 stops63h 45mMultiple Airlines

Sat 2/72:25 pmSIN - BWI

2 stops52h 20mMultiple Airlines

Deal found 12/17

$1,237

Wed 4/151:15 pmIAD - SIN

1 stop42h 40mKorean Air

Fri 5/810:30 pmSIN - IAD

2 stops27h 29mKorean Air

Deal found 12/16

$1,188

Sat 4/1110:46 amIAD - SIN

2 stops54h 14mDelta

Mon 4/2010:30 pmSIN - IAD

2 stops34h 46mDelta

Deal found 12/17

$1,188

Sun 4/51:00 pmDCA - SIN

2 stops41h 35mUnited Airlines

Fri 4/248:40 pmSIN - DCA

1 stop32h 16mUnited Airlines

Deal found 12/17

$1,191

Sat 1/317:14 pmBWI - SIN

1 stop33h 31mMultiple Airlines

Mon 2/93:15 amSIN - BWI

2 stops34h 16mMultiple Airlines

Deal found 12/17

$1,256

Sun 4/51:15 pmIAD - SIN

1 stop27h 45mKorean Air

Mon 4/2010:30 pmSIN - IAD

2 stops30h 09mKorean Air

Deal found 12/17

$1,188

Mon 4/66:31 pmBWI - SIN

1 stop24h 14mUnited Airlines

Wed 4/228:40 pmSIN - BWI

2 stops26h 56mUnited Airlines

Deal found 12/17

$1,225

Fri 4/101:15 pmIAD - SIN

1 stop27h 45mKorean Air

Wed 4/2210:30 pmSIN - IAD

2 stops32h 46mKorean Air

Deal found 12/17

$1,188

Mon 4/66:31 pmBWI - SIN

1 stop24h 14mUnited Airlines

Mon 4/208:40 pmSIN - BWI

2 stops26h 56mUnited Airlines

Deal found 12/17

$1,225

Tue 4/141:15 pmIAD - SIN

1 stop22h 25mKorean Air

Fri 5/810:30 pmSIN - IAD

2 stops27h 29mKorean Air

Deal found 12/16

$1,188

Tue 4/76:31 pmBWI - SIN

1 stop24h 14mUnited Airlines

Thu 4/238:40 pmSIN - BWI

2 stops26h 56mUnited Airlines

Deal found 12/17

$1,225

Fri 4/101:15 pmIAD - SIN

1 stop27h 45mKorean Air

Mon 4/2010:30 pmSIN - IAD

2 stops34h 46mKorean Air

Deal found 12/17

$1,188

Sun 4/512:40 pmBWI - SIN

2 stops41h 55mUnited Airlines

Thu 4/238:40 pmSIN - BWI

2 stops26h 56mUnited Airlines

Deal found 12/17

$1,229

Mon 4/131:15 pmIAD - SIN

1 stop27h 45mKorean Air

Sat 5/910:30 pmSIN - IAD

2 stops27h 29mKorean Air

Deal found 12/16

$1,188

Thu 4/94:12 pmBWI - SIN

2 stops26h 33mUnited Airlines

Mon 4/208:40 pmSIN - BWI

2 stops26h 56mUnited Airlines

Deal found 12/17

$1,229

Sun 4/51:15 pmIAD - SIN

1 stop27h 45mKorean Air

Wed 4/2210:30 pmSIN - IAD

2 stops30h 09mKorean Air

Deal found 12/17

$1,188

Thu 4/94:12 pmBWI - SIN

2 stops26h 33mUnited Airlines

Wed 4/228:40 pmSIN - BWI

2 stops26h 56mUnited Airlines

Deal found 12/17

$1,229

Fri 4/101:15 pmIAD - SIN

1 stop27h 45mKorean Air

Mon 4/201:10 amSIN - IAD

2 stops32h 06mKorean Air

Deal found 12/17

$1,188

Wed 1/76:34 pmBWI - SIN

1 stop36h 41mUnited Airlines

Thu 1/1510:20 pmSIN - BWI

1 stop22h 12mUnited Airlines

Deal found 12/16

$1,237

Tue 4/141:15 pmIAD - SIN

1 stop42h 40mKorean Air

Sat 5/910:30 pmSIN - IAD

2 stops27h 29mKorean Air

Deal found 12/16

$1,188

Fri 1/307:00 amDCA - SIN

2 stops28h 55mUnited Airlines

Fri 2/610:10 amSIN - DCA

1 stop24h 42mUnited Airlines

Deal found 12/16

$1,237

Sat 4/116:59 amDCA - SIN

2 stops28h 41mKorean Air

Mon 4/2010:30 pmSIN - DCA

2 stops30h 33mKorean Air

Deal found 12/17

$1,194

Fri 3/67:00 amDCA - SIN

2 stops28h 55mUnited Airlines

Fri 3/1310:10 amSIN - DCA

1 stop23h 35mUnited Airlines

Deal found 12/16

$1,245

Fri 4/107:35 pmDCA - SIN

2 stops40h 05mKorean Air

Mon 4/201:10 amSIN - DCA

2 stops27h 53mKorean Air

Deal found 12/17

$1,200

Wed 1/146:34 pmBWI - SIN

1 stop24h 26mUnited Airlines

Fri 1/2310:20 pmSIN - BWI

1 stop22h 12mUnited Airlines

Deal found 12/16

$1,275

Mon 4/66:31 pmBWI - SIN

1 stop24h 14mUnited Airlines

Sat 4/258:40 pmSIN - BWI

2 stops26h 56mUnited Airlines

Deal found 12/17

$1,275

Last-minute flights from Washington, D.C. to Singapore
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated December 18, 2025 and is based on user searches.

Thu 1/89:15 pmIAD - SIN

2 stops48h 00mIndiGo

Fri 1/2311:15 amSIN - IAD

2 stops45h 05mIndiGo

Deal found 12/17

$1,186

Fri 1/910:20 pmIAD - SIN

1 stop32h 55mUnited Airlines

Thu 1/156:35 amSIN - IAD

2 stops27h 38mUnited Airlines

Deal found 12/16

$1,187

Wed 1/147:00 amDCA - SIN

1 stop36h 00mUnited Airlines

Sun 1/2510:10 amSIN - DCA

1 stop24h 42mUnited Airlines

Deal found 12/16

$1,186

Thu 1/158:25 amDCA - SIN

2 stops27h 30mANA

Sun 1/2510:20 pmSIN - DCA

2 stops26h 38mANA

Deal found 12/16

$1,184

Thu 1/158:20 amIAD - SIN

2 stops27h 35mANA

Sun 1/2510:20 pmSIN - IAD

2 stops35h 57mANA

Deal found 12/16

$1,184

Wed 1/218:00 amBWI - SIN

1 stop32h 30mSingapore Airlines

Tue 1/279:00 amSIN - BWI

1 stop22h 14mSingapore Airlines

Deal found 12/18

$1,183

Fri 1/307:14 pmBWI - SIN

1 stop33h 31mMultiple Airlines

Fri 2/68:45 pmSIN - BWI

2 stops50h 42mMultiple Airlines

Deal found 12/16

$1,140

Sat 1/317:14 pmBWI - SIN

1 stop33h 31mSingapore Airlines

Sat 2/79:00 amSIN - BWI

1 stop22h 14mSingapore Airlines

Deal found 12/16

$1,090

Sat 1/317:14 pmBWI - SIN

1 stop33h 31mSingapore Airlines

Tue 2/109:00 amSIN - BWI

1 stop22h 14mSingapore Airlines

Deal found 12/17

$1,115

Sat 1/3112:50 pmBWI - SIN

2 stops28h 45mAmerican Airlines

Mon 2/92:20 amSIN - BWI

2 stops28h 32mAmerican Airlines

Deal found 12/15

$1,169

Sat 1/312:35 pmIAD - SIN

3 stops33h 45mMultiple Airlines

Tue 2/102:20 pmSIN - IAD

3 stops31h 45mMultiple Airlines

Deal found 12/17

$1,185

Sat 1/317:14 pmBWI - SIN

1 stop33h 31mMultiple Airlines

Sat 2/710:30 pmSIN - BWI

2 stops50h 15mMultiple Airlines

Deal found 12/17

$1,187

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 December 18, 2025.

Sat 3/71:30 pmIAD - SIN

2 stops38h 50mIndiGo

Deal found 12/16

$411

Fri 3/1310:15 pmIAD - SIN

2 stops31h 05mIndiGo

Deal found 12/16

$424

Wed 3/252:30 pmIAD - SIN

2 stops38h 50mIndiGo

Deal found 12/16

$434

Fri 1/309:15 pmIAD - SIN

2 stops48h 00mIndiGo

Deal found 12/15

$436

Fri 2/69:15 pmIAD - SIN

2 stops48h 00mIndiGo

Deal found 12/17

$443

Sun 2/82:35 pmIAD - SIN

2 stops27h 05mMultiple Airlines

Deal found 12/17

$450

Sun 1/181:30 pmIAD - SIN

2 stops38h 50mIndiGo

Deal found 12/17

$452

Thu 1/299:15 pmIAD - SIN

2 stops46h 30mIndiGo

Deal found 12/17

$453

Sun 2/19:15 pmIAD - SIN

2 stops47h 00mIndiGo

Deal found 12/17

$456

Tue 2/109:15 pmIAD - SIN

2 stops48h 00mIndiGo

Deal found 12/16

$457

Sun 3/12:35 pmIAD - SIN

2 stops27h 05mMultiple Airlines

Deal found 12/16

$460

Sat 1/316:00 pmDCA - SIN

3 stops58h 35mMultiple Airlines

Deal found 12/16

$463

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

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,090 (oojo)
One-way from	$411 (Booking.com)
Popular in	December
Cheapest in	August
Average price	$1,984

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($241 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($71 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 4/5

7:20 am-5:00 am

2 stops33h 40m

Singapore Changi

Tue 4/21

7:30 am-11:15 am

1 stop39h 45m

$1,183

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 1/14

7:00 am-8:00 am

1 stop36h 00m

Singapore Changi

Fri 1/23

10:20 pm-11:29 am

2 stops26h 09m

$1,186

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 4/10

7:20 am-5:00 am

2 stops33h 40m

Singapore Changi

Tue 4/21

7:30 am-9:16 pm

2 stops25h 46m

$1,188

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 4/15

1:15 pm-7:55 pm

1 stop42h 40m

Singapore Changi

Fri 5/8

10:30 pm-1:59 pm

2 stops27h 29m

$1,188

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 4/11

10:46 am-5:00 am

2 stops54h 14m

Singapore Changi

Mon 4/20

10:30 pm-9:16 pm

2 stops34h 46m

$1,188

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 4/5

1:15 pm-5:00 am

1 stop27h 45m

Singapore Changi

Mon 4/20

10:30 pm-4:39 pm

2 stops30h 09m

$1,188

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 4/10

1:15 pm-5:00 am

1 stop27h 45m

Singapore Changi

Wed 4/22

10:30 pm-7:16 pm

2 stops32h 46m

$1,188

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 4/14

1:15 pm-11:40 pm

1 stop22h 25m

Singapore Changi

Fri 5/8

10:30 pm-1:59 pm

2 stops27h 29m

$1,188

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 4/10

1:15 pm-5:00 am

1 stop27h 45m

Singapore Changi

Mon 4/20

10:30 pm-9:16 pm

2 stops34h 46m

$1,188

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 4/13

1:15 pm-5:00 am

1 stop27h 45m

Singapore Changi

Sat 5/9

10:30 pm-1:59 pm

2 stops27h 29m

$1,188

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results

...

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

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

Estimated 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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $794). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of $1,144). 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.

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 fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 26% versus a flight in the evening.

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

Travelers seeking maximum savings on their Washington, D.C. to Singapore flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Singapore

Read reviews from past customers who have flown Qatar Airways, United Airlines, and Turkish Airlines from Washington, D.C. to Singapore. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Qatar Airways

7.4

Good

3,686 reviews

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Qatar Airways

7.4

Good

3,686 reviews

Qatar Airways

7.4

Good

3,686 reviews

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

United Airlines

7.4

Good

9,091 reviews

Qatar Airways

7.4

Good

3,686 reviews

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Turkish Airlines

7.3

Good

4,105 reviews

Qatar Airways

7.4

Good

3,686 reviews

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

JetBlue

7.2

Good

2,897 reviews

Qatar Airways

7.4

Good

3,686 reviews

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Air India

5.5

Fair

2,952 reviews

Qatar Airways

7.4

Good

3,686 reviews

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Related info for your journey

How long is the flight from Washington, D.C. to Singapore?
Korean Air, United Airlines, and Delta can get you from Washington, D.C. to Singapore in just under 33h 40m. Your travel time can differ by up to 2h 20m. 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 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 Turkish Airlines ($433), Etihad Airways ($481), and Qatar Airways ($510).
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, November is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $794). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of $1,144). 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 for Washington, D.C. to Singapore

Dulles Intl to Haneda flights

Dulles Intl to Narita flights

Dulles Intl to Suvarnabhumi flights

Reagan-National to Narita flights

Reagan-National to Haneda flights

Dulles Intl to Hyderabad flights

Dulles Intl to New Delhi flights

Dulles Intl to Incheon Intl flights

Reagan-National to New Delhi flights

Reagan-National to Hyderabad flights

Dulles Intl to Mumbai flights

Reagan-National to Suvarnabhumi flights

Dulles Intl to Ho Chi Minh City flights

Dulles Intl to Manila flights

Reagan-National to Mumbai flights

Dulles Intl to Hongqiao Intl flights

Dulles Intl to Ahmedabad flights

Dulles Intl to Don Mueang Intl flights

Dulles Intl to Taiwan Taoyuan Intl flights

Dulles Intl to Islamabad flights

Reagan-National to Hongqiao Intl flights

Dulles Intl to Chennai flights

Reagan-National to Ahmedabad flights

Reagan-National to Manila flights

Dulles Intl to Lahore flights

Dulles Intl to Hong Kong flights

Reagan-National to Incheon Intl flights

Dulles Intl to Capital flights

Dulles Intl to Pu Dong flights

Dulles Intl to Gimpo Intl flights

Dulles Intl to Bangalore flights

Reagan-National to Ho Chi Minh City flights

Dulles Intl to Dhaka flights

Reagan-National to Pu Dong flights

Reagan-National to Hong Kong flights

Reagan-National to Chennai flights

Dulles Intl to Kathmandu flights

Reagan-National to Bangalore flights

Dulles Intl to Karachi flights

Reagan-National to Capital flights

Reagan-National to Taiwan Taoyuan Intl flights

Reagan-National to Islamabad flights

Dulles Intl to Sung Shan flights

Dulles Intl to Denpasar flights

Reagan-National to Dhaka flights

Reagan-National to Kathmandu flights

Reagan-National to Lahore flights

Reagan-National to Denpasar flights

Dulles Intl to Colombo flights

Top 9 airlines flying from Washington, D.C. to Singapore

Airline	Cheapest	Average	Flexibility	On-time
Air India	Cheapest$807	Average$996	FlexibilityNo cancel fee	On-timeN/A
Etihad Airways	Cheapest$833	Average$990	FlexibilityNo cancel fee	On-time75%
Turkish Airlines	Cheapest$856	Average$1,029	FlexibilityNo cancel fee	On-time77%
Korean Air	Cheapest$944	Average$1,199	FlexibilityNo cancel fee	On-time81%
Qatar Airways	Cheapest$1,023	Average$1,309	FlexibilityNo cancel fee	On-time68%
JetBlue	Cheapest$1,066	Average$2,053	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$1,174	Average$1,372	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$1,196	Average$1,199	FlexibilityNo cancel fee	On-time71%
ANA	Cheapest$1,499	Average$2,103	FlexibilityNo cancel fee	On-time80%

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.

$411+ Cheap flights from Washington, D.C. (WAS) to Singapore

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 3/7. 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 December 18, 2025.

Explore the most affordable flight options available from Washington, D.C. to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

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

Keep the following information in mind while searching for Washington, D.C. to Singapore flight deals. Data was last updated December 18, 2025.

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.

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

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Washington, D.C. to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Singapore. Price data was last updated on December 16, 2024.

Reviews of airlines servicing Singapore

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

What are the 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.

Top 9 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 December 18, 2025.