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 ($454), Air China ($493), and Air India ($497).

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

The best pricing can be found in the month of November. Prices to Singapore from Washington, D.C. average $1,285. You can even find prices in November for less than $1,285, as users have found deals to Singapore from as low as $817. The month of December appears to be one of the more expensive times to travel to Singapore from Washington, D.C.. Flying in the targeted month can save you up to 40%.

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.

$1,208+ 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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$952 (Mytrip)
One-way from	$439 (Kiwi.com)
Popular in	December
Cheapest in	November
Average price	$1,139

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. 2% potential increase in price ($26 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Find 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 March 31, 2025.

Wed 5/141:30 pmIAD - SIN

1 stop31h 15mTurkish Airlines

Wed 5/2111:10 pmSIN - IAD

1 stop32h 35mTurkish Airlines

Deal found 3/30

$952

Mon 4/1410:05 pmIAD - SIN

2 stops44h 25mMultiple Airlines

Wed 4/233:45 amSIN - IAD

1 stop24h 00mMultiple Airlines

Deal found 3/30

$959

Fri 11/216:00 amDCA - SIN

2 stops36h 55mAir Canada

Sun 11/3010:00 amSIN - DCA

2 stops37h 19mAir Canada

Deal found 3/30

$962

Fri 9/198:25 amIAD - SIN

1 stop34h 40mAir Canada

Tue 10/219:10 amSIN - IAD

2 stops36h 29mAir Canada

Deal found 3/31

$966

Tue 4/19:00 pmIAD - SIN

1 stop30h 45mQatar Airways

Sun 5/113:10 amSIN - IAD

1 stop24h 30mQatar Airways

Deal found 3/30

$983

Mon 4/149:00 pmIAD - SIN

1 stop24h 00mJetBlue

Tue 4/223:10 amSIN - IAD

1 stop24h 30mJetBlue

Deal found 3/30

$1,066

Mon 5/266:50 pmIAD - SIN

2 stops32h 55mSAUDIA

Fri 7/112:30 amSIN - IAD

1 stop25h 15mSAUDIA

Deal found 3/30

$1,166

Mon 6/231:30 pmIAD - SIN

2 stops39h 50mIndiGo

Mon 7/77:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 3/30

$1,187

Wed 9/109:00 amDCA - SIN

2 stops27h 20mJapan Airlines

Tue 9/231:55 amSIN - DCA

2 stops23h 58mJapan Airlines

Deal found 3/30

$1,191

Mon 9/86:45 pmBWI - SIN

1 stop23h 30mUnited Airlines

Thu 9/258:40 pmSIN - BWI

1 stop22h 05mUnited Airlines

Deal found 3/30

$1,193

Tue 4/85:59 pmDCA - SIN

1 stop24h 46mUnited Airlines

Thu 4/249:00 amSIN - DCA

1 stop24h 30mUnited Airlines

Deal found 3/30

$1,193

Wed 4/910:15 pmIAD - SIN

1 stop32h 10mUnited Airlines

Wed 4/239:00 amSIN - IAD

1 stop28h 09mUnited Airlines

Deal found 3/30

$1,193

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 March 31, 2025.

Wed 5/141:30 pmIAD - SIN

1 stop31h 15mTurkish Airlines

Wed 5/2111:10 pmSIN - IAD

1 stop32h 35mTurkish Airlines

Deal found 3/30

$952

Mon 4/1410:05 pmIAD - SIN

2 stops44h 25mMultiple Airlines

Wed 4/233:45 amSIN - IAD

1 stop24h 00mMultiple Airlines

Deal found 3/30

$959

Wed 5/144:35 pmDCA - SIN

2 stops50h 30mAir Canada

Thu 5/299:10 amSIN - DCA

2 stops35h 43mAir Canada

Deal found 3/30

$966

Wed 4/309:00 pmIAD - SIN

1 stop30h 45mQatar Airways

Thu 5/83:10 amSIN - IAD

1 stop41h 30mQatar Airways

Deal found 3/30

$1,048

Mon 4/149:00 pmIAD - SIN

1 stop24h 00mJetBlue

Tue 4/223:10 amSIN - IAD

1 stop24h 30mJetBlue

Deal found 3/30

$1,066

Mon 6/26:50 pmIAD - SIN

2 stops32h 55mSAUDIA

Fri 7/112:30 amSIN - IAD

1 stop25h 15mSAUDIA

Deal found 3/31

$1,089

Tue 4/89:00 pmIAD - SIN

1 stop24h 00mAlaska Airlines

Tue 4/226:45 pmSIN - IAD

1 stop32h 55mAlaska Airlines

Deal found 3/31

$1,113

Mon 4/146:34 pmBWI - SIN

1 stop24h 11mUnited Airlines

Thu 4/248:40 pmSIN - BWI

1 stop22h 46mUnited Airlines

Deal found 3/31

$1,193

Sun 5/1811:00 amIAD - SIN

1 stop22h 45mAir India

Sun 5/2511:00 pmSIN - IAD

1 stop44h 40mAir India

Deal found 3/31

$1,211

Thu 5/112:15 pmIAD - SIN

1 stop41h 00mANA

Mon 6/210:10 pmSIN - IAD

2 stops44h 02mANA

Deal found 3/30

$1,241

Wed 4/169:00 pmIAD - SIN

2 stops25h 15mMalaysia Airlines

Sun 4/279:15 pmSIN - IAD

2 stops30h 25mMalaysia Airlines

Deal found 3/30

$1,258

Sat 4/2611:54 amDCA - SIN

2 stops29h 36mCathay Pacific

Thu 5/18:05 pmSIN - DCA

2 stops38h 10mCathay Pacific

Deal found 3/31

$1,317

Last-minute flights from Washington, D.C. to Singapore
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated March 31, 2025 and is based on user searches.

Mon 3/316:00 amDCA - SIN

2 stops29h 40mDelta

Sun 4/1310:30 pmSIN - DCA

2 stops35h 30mDelta

Deal found 3/30

$1,206

Mon 3/316:09 amIAD - SIN

2 stops29h 31mDelta

Mon 4/147:30 amSIN - IAD

2 stops28h 10mDelta

Deal found 3/30

$1,206

Tue 4/19:00 pmIAD - SIN

1 stop30h 45mQatar Airways

Sun 5/113:10 amSIN - IAD

1 stop24h 30mQatar Airways

Deal found 3/30

$983

Fri 4/411:00 amIAD - SIN

1 stop22h 00mAlaska Airlines

Sat 4/1210:30 amSIN - IAD

1 stop34h 10mAlaska Airlines

Deal found 3/30

$1,232

Sat 4/59:00 pmIAD - SIN

1 stop30h 45mAlaska Airlines

Sat 4/1210:30 amSIN - IAD

1 stop34h 10mAlaska Airlines

Deal found 3/30

$1,232

Mon 4/79:00 pmIAD - SIN

2 stops33h 15mQatar Airways

Thu 4/103:10 amSIN - IAD

1 stop24h 30mQatar Airways

Deal found 3/30

$1,095

Mon 4/71:30 pmIAD - SIN

1 stop31h 00mMultiple Airlines

Fri 4/117:45 pmSIN - IAD

2 stops36h 00mMultiple Airlines

Deal found 3/30

$1,185

Mon 4/73:45 pmDCA - SIN

2 stops36h 00mQatar Airways

Fri 4/1110:30 amSIN - DCA

2 stops45h 29mQatar Airways

Deal found 3/30

$1,322

Tue 4/89:00 pmIAD - SIN

1 stop24h 00mJetBlue

Tue 4/223:10 amSIN - IAD

1 stop24h 30mJetBlue

Deal found 3/30

$1,113

Tue 4/81:30 pmIAD - SIN

1 stop40h 25mTurkish Airlines

Thu 4/245:10 amSIN - IAD

1 stop42h 35mTurkish Airlines

Deal found 3/30

$1,171

Tue 4/85:59 pmDCA - SIN

1 stop24h 46mUnited Airlines

Thu 4/249:00 amSIN - DCA

1 stop24h 30mUnited Airlines

Deal found 3/30

$1,193

Tue 4/812:35 pmBWI - SIN

2 stops30h 10mUnited Airlines

Tue 4/228:40 pmSIN - BWI

2 stops25h 14mUnited Airlines

Deal found 3/31

$1,197

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 March 31, 2025.

Sun 5/411:00 amIAD - SIN

2 stops35h 50mMultiple Airlines

Deal found 3/30

$439

Wed 5/71:30 pmIAD - SIN

1 stop31h 15mTurkish Airlines

Deal found 3/30

$454

Sat 4/511:00 pmIAD - SIN

1 stop43h 50mAir China

Deal found 3/29

$493

Sun 5/411:00 amIAD - SIN

3 stops33h 15mAir India

Deal found 3/30

$497

Sun 4/610:05 pmIAD - SIN

1 stop23h 35mEtihad Airways

Deal found 3/30

$526

Thu 4/31:30 pmIAD - SIN

2 stops39h 50mIndiGo

Deal found 3/30

$531

Thu 5/158:10 amBWI - SIN

3 stops34h 10mMultiple Airlines

Deal found 3/31

$552

Wed 5/216:50 pmIAD - SIN

2 stops32h 55mSAUDIA

Deal found 3/30

$582

Thu 4/36:00 amDCA - SIN

2 stops35h 30mCathay Pacific

Deal found 3/30

$610

Wed 5/77:00 amIAD - SIN

2 stops34h 30mCathay Pacific

Deal found 3/30

$615

Sun 5/2511:00 amDCA - SIN

2 stops34h 40mMultiple Airlines

Deal found 3/29

$626

Thu 5/159:40 amDCA - SIN

2 stops33h 25mAir Canada

Deal found 3/31

$646

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

Wed 5/14

1:30 pm-8:45 am

1 stop31h 15m

Singapore Changi

Wed 5/21

11:10 pm-7:45 pm

1 stop32h 35m

$952

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 4/14

10:05 pm-6:30 am

2 stops44h 25m

Singapore Changi

Wed 4/23

3:45 am-3:45 pm

1 stop24h 00m

$959

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 5/14

4:35 pm-7:05 am

2 stops50h 30m

Singapore Changi

Thu 5/29

9:10 am-8:53 am

2 stops35h 43m

$966

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 9/19

8:25 am-7:05 am

1 stop34h 40m

Singapore Changi

Tue 10/21

9:10 am-9:39 am

2 stops36h 29m

$966

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 9/18

9:00 pm-3:45 pm

1 stop30h 45m

Singapore Changi

Sun 9/28

3:10 am-3:40 pm

1 stop24h 30m

$1,010

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 4/14

9:00 pm-9:00 am

1 stop24h 00m

Singapore Changi

Tue 4/22

3:10 am-3:40 pm

1 stop24h 30m

$1,066

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 5/26

6:50 pm-3:45 pm

2 stops32h 55m

Singapore Changi

Fri 7/11

2:30 am-3:45 pm

1 stop25h 15m

$1,166

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 6/23

1:30 pm-5:20 pm

2 stops39h 50m

Singapore Changi

Mon 7/7

7:45 pm-7:45 pm

2 stops36h 00m

$1,187

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 9/10

9:00 am-12:20 am

2 stops27h 20m

Singapore Changi

Tue 9/23

1:55 am-1:53 pm

2 stops23h 58m

$1,191

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Mon 9/8

6:45 pm-6:15 am

1 stop23h 30m

Singapore Changi

Thu 9/25

8:40 pm-6:45 am

1 stop22h 05m

$1,193

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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, September is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $1,011). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of $1,684). 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 decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Singapore by month

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.

Temperature in Singapore by month

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).

Reviews of airlines servicing Singapore

See what other customers who have flown with Korean Air, Japan Airlines and ANA from Washington, D.C. to Singapore have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,051 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Korean Air

8.4

Very good

1,051 reviews

Korean Air

8.4

Very good

1,051 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Japan Airlines

8.3

Very good

1,440 reviews

Korean Air

8.4

Very good

1,051 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

ANA

8.3

Very good

831 reviews

Korean Air

8.4

Very good

1,051 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Singapore Airlines

8.1

Very good

1,286 reviews

Korean Air

8.4

Very good

1,051 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Delta

8.0

Very good

7,899 reviews

Korean Air

8.4

Very good

1,051 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

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 ($454), Air China ($493), and Air India ($497).
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, September is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $1,011). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of $1,684). 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

Reagan-National to Narita flights

Reagan-National to Haneda flights

Dulles Intl to Incheon Intl flights

Dulles Intl to Suvarnabhumi flights

Reagan-National to Suvarnabhumi flights

Dulles Intl to Hyderabad flights

Dulles Intl to Taiwan Taoyuan Intl flights

Dulles Intl to Ho Chi Minh City flights

Dulles Intl to Manila flights

Reagan-National to Incheon Intl flights

Dulles Intl to New Delhi flights

Dulles Intl to Bangalore flights

Reagan-National to Hyderabad flights

Dulles Intl to Gimpo Intl flights

Reagan-National to Bangalore flights

Dulles Intl to Denpasar flights

Reagan-National to New Delhi flights

Dulles Intl to Hongqiao Intl flights

Reagan-National to Taiwan Taoyuan Intl flights

Dulles Intl to Mumbai flights

Reagan-National to Manila flights

Dulles Intl to Capital flights

Reagan-National to Gimpo Intl flights

Dulles Intl to Sung Shan flights

Dulles Intl to Lahore flights

Reagan-National to Denpasar flights

Dulles Intl to Islamabad flights

Dulles Intl to Chennai flights

Reagan-National to Ho Chi Minh City flights

Reagan-National to Mumbai flights

Dulles Intl to Pu Dong flights

Reagan-National to Capital flights

Dulles Intl to Kathmandu flights

Reagan-National to Hongqiao Intl flights

Reagan-National to Chennai flights

Dulles Intl to Singapore flights

Reagan-National to Singapore flights

Dulles Intl to Hong Kong flights

Dulles Intl to Cochin flights

Dulles Intl to Kansai Intl flights

Dulles Intl to Dhaka flights

Dulles Intl to Ahmedabad flights

Reagan-National to Dhaka flights

Reagan-National to Kathmandu flights

Reagan-National to Pu Dong flights

Dulles Intl to Cebu City flights

Dulles Intl to Karachi flights

Top 8 airlines flying from Washington, D.C. to Singapore

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	Cheapest$831	Average$1,000	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$904	Average$1,600	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$1,009	Average$1,470	FlexibilityNo cancel fee	On-timeN/A
Qatar Airways	Cheapest$1,014	Average$1,316	FlexibilityNo cancel fee	On-time68%
Korean Air	Cheapest$1,037	Average$1,355	FlexibilityNo cancel fee	On-time81%
JetBlue	Cheapest$1,043	Average$1,191	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$1,124	Average$1,451	FlexibilityNo cancel fee	On-time71%
Singapore Airlines	Cheapest$1,206	Average$1,780	FlexibilityNo cancel fee	On-time81%

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.

$439+ 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 5/4. 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

Keep the following information in mind while searching for Washington, D.C. to Singapore flight deals. Data was last updated March 31, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 March 31, 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 March 31, 2025.

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 March 31, 2025.

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

Reviews of airlines servicing Singapore

See what other customers who have flown with Korean Air, Japan Airlines and ANA from Washington, D.C. to Singapore have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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 8 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 March 31, 2025.