$1,058+ Flights from Washington, D.C. to Singapore

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

Highest demand for flights based on searches. 5% potential increase in price ($73 potential increase over avg. RT price).

Cheapest flight prices on average. 4% potential price decrease ($53 potential savings vs. average RT price).

Average for round-trip flights in June 2025

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 June 12, 2025.

Mon 9/81:37 pmBWI - SIN

2 stops51h 23mMultiple Airlines

Wed 9/171:10 amSIN - BWI

2 stops31h 52mMultiple Airlines

Deal found 6/9

$1,007

Wed 7/165:12 pmIAD - SIN

2 stops49h 53mAir Canada

Tue 7/229:10 amSIN - IAD

2 stops36h 27mAir Canada

Deal found 6/10

$1,086

Mon 9/18:35 amDCA - SIN

2 stops27h 05mKorean Air

Tue 9/91:10 amSIN - DCA

2 stops32h 37mKorean Air

Deal found 6/11

$1,093

Wed 7/91:30 pmIAD - SIN

1 stop31h 15mTurkish Airlines

Tue 10/75:10 amSIN - IAD

1 stop26h 35mTurkish Airlines

Deal found 6/11

$1,095

Mon 9/86:00 amIAD - SIN

2 stops29h 40mKorean Air

Wed 9/171:10 amSIN - IAD

2 stops32h 03mKorean Air

Deal found 6/12

$1,096

Sun 12/1411:00 amIAD - SIN

1 stop31h 00mAir India

Mon 12/228:20 amSIN - IAD

1 stop35h 30mAir India

Deal found 6/12

$1,100

Thu 11/138:05 pmIAD - SIN

1 stop29h 50mQatar Airways

Tue 11/185:25 pmSIN - IAD

2 stops27h 55mQatar Airways

Deal found 6/12

$1,102

Wed 7/161:30 pmIAD - SIN

1 stop40h 25mMultiple Airlines

Tue 7/227:45 pmSIN - IAD

2 stops36h 00mMultiple Airlines

Deal found 6/10

$1,103

Sat 7/124:30 pmDCA - SIN

2 stops50h 35mAir Canada

Sat 7/199:10 amSIN - DCA

2 stops37h 08mAir Canada

Deal found 6/9

$1,113

Mon 9/86:55 pmBWI - SIN

1 stop24h 55mSingapore Airlines

Thu 9/188:45 pmSIN - BWI

1 stop32h 22mSingapore Airlines

Deal found 6/12

$1,123

Thu 7/109:40 pmIAD - SIN

2 stops32h 05mIndiGo

Thu 7/177:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 6/10

$1,135

Mon 9/88:59 amDCA - SIN

1 stop34h 51mSingapore Airlines

Thu 9/188:45 pmSIN - DCA

1 stop36h 14mSingapore Airlines

Deal found 6/10

$1,201

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 June 12, 2025.

Mon 9/81:37 pmBWI - SIN

2 stops51h 23mMultiple Airlines

Wed 9/171:10 amSIN - BWI

2 stops31h 52mMultiple Airlines

Deal found 6/9

$1,007

Wed 7/165:12 pmIAD - SIN

2 stops49h 53mAir Canada

Tue 7/229:10 amSIN - IAD

2 stops36h 27mAir Canada

Deal found 6/10

$1,086

Mon 9/18:35 amDCA - SIN

2 stops27h 05mKorean Air

Tue 9/91:10 amSIN - DCA

2 stops32h 37mKorean Air

Deal found 6/11

$1,093

Wed 7/91:30 pmIAD - SIN

1 stop31h 15mTurkish Airlines

Tue 10/75:10 amSIN - IAD

1 stop26h 35mTurkish Airlines

Deal found 6/11

$1,095

Thu 11/138:05 pmIAD - SIN

1 stop29h 50mQatar Airways

Tue 11/185:25 pmSIN - IAD

2 stops27h 55mQatar Airways

Deal found 6/12

$1,102

Sun 7/2012:50 pmIAD - SIN

1 stop30h 25mAir India

Mon 8/48:45 amSIN - IAD

1 stop38h 30mAir India

Deal found 6/12

$1,116

Mon 9/86:55 pmBWI - SIN

1 stop24h 55mSingapore Airlines

Thu 9/188:45 pmSIN - BWI

1 stop32h 22mSingapore Airlines

Deal found 6/12

$1,123

Thu 7/109:40 pmIAD - SIN

2 stops32h 05mIndiGo

Thu 7/177:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 6/10

$1,135

Mon 9/16:15 amBWI - SIN

2 stops34h 45mDelta

Wed 9/107:30 amSIN - BWI

2 stops28h 51mDelta

Deal found 6/10

$1,204

Mon 9/17:00 pmBWI - SIN

1 stop23h 15mUnited Airlines

Wed 9/108:45 amSIN - BWI

2 stops26h 00mUnited Airlines

Deal found 6/10

$1,225

Wed 7/303:30 pmDCA - SIN

2 stops27h 10mANA

Wed 8/66:15 amSIN - DCA

2 stops26h 47mANA

Deal found 6/11

$1,229

Thu 11/2010:00 amIAD - SIN

1 stop39h 50mEthiopian Air

Sun 11/302:00 amSIN - IAD

2 stops30h 05mEthiopian Air

Deal found 6/11

$1,240

Last-minute flights from Washington, D.C. to Singapore
Discover last-minute flight deals from Washington, D.C. to Singapore. Data last updated June 12, 2025 and is based on user searches.

Tue 6/176:51 amBWI - SIN

1 stop23h 34mUnited Airlines

Wed 7/28:40 pmSIN - BWI

1 stop23h 03mUnited Airlines

Deal found 6/10

$1,621

Tue 6/177:00 amDCA - SIN

1 stop23h 25mUnited Airlines

Wed 7/28:45 amSIN - DCA

1 stop24h 42mUnited Airlines

Deal found 6/10

$1,833

Wed 6/189:00 pmIAD - SIN

1 stop36h 00mQatar Airways

Wed 7/26:45 pmSIN - IAD

1 stop25h 55mQatar Airways

Deal found 6/11

$1,270

Wed 6/1810:55 amIAD - SIN

1 stop39h 55mEthiopian Air

Tue 7/12:00 amSIN - IAD

2 stops30h 05mEthiopian Air

Deal found 6/11

$1,490

Wed 6/181:45 pmDCA - SIN

2 stops38h 00mQatar Airways

Tue 7/13:10 amSIN - DCA

2 stops28h 48mQatar Airways

Deal found 6/11

$1,530

Wed 6/186:30 amIAD - SIN

1 stop23h 55mUnited Airlines

Fri 7/48:45 amSIN - IAD

1 stop24h 36mUnited Airlines

Deal found 6/10

$1,883

Fri 6/2012:50 pmIAD - SIN

1 stop30h 25mAir India

Fri 6/278:45 amSIN - IAD

2 stops38h 30mAir India

Deal found 6/10

$1,695

Fri 6/205:25 pmIAD - SIN

1 stop34h 05mKLM

Thu 6/2612:40 amSIN - IAD

1 stop26h 55mKLM

Deal found 6/10

$1,802

Fri 6/2010:05 pmIAD - SIN

1 stop23h 35mEtihad Airways

Fri 6/279:10 pmSIN - IAD

1 stop31h 00mEtihad Airways

Deal found 6/10

$1,807

Fri 6/208:19 pmIAD - SIN

2 stops27h 41mMultiple Airlines

Fri 6/273:10 pmSIN - IAD

2 stops28h 09mMultiple Airlines

Deal found 6/10

$2,012

Sat 6/217:33 pmDCA - SIN

2 stops28h 12mCathay Pacific

Wed 7/29:45 amSIN - DCA

2 stops34h 05mCathay Pacific

Deal found 6/12

$1,655

Sat 6/215:12 pmIAD - SIN

2 stops49h 53mAir Canada

Wed 7/26:15 amSIN - IAD

2 stops26h 46mAir Canada

Deal found 6/12

$1,707

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 June 12, 2025.

Tue 9/21:30 pmIAD - SIN

2 stops39h 50mIndiGo

Deal found 6/11

$420

Wed 8/2712:50 pmIAD - SIN

1 stop30h 25mAir India

Deal found 6/10

$423

Thu 8/141:30 pmIAD - SIN

1 stop40h 25mTurkish Airlines

Deal found 6/9

$445

Mon 8/46:15 pmBWI - SIN

2 stops36h 55mMultiple Airlines

Deal found 6/10

$466

Mon 8/49:40 pmIAD - SIN

3 stops59h 05mMultiple Airlines

Deal found 6/10

$482

Mon 8/411:00 amIAD - SIN

1 stop22h 00mQatar Airways

Deal found 6/10

$533

Mon 8/44:51 pmDCA - SIN

2 stops42h 49mKorean Air

Deal found 6/10

$536

Mon 8/46:58 pmDCA - SIN

1 stop36h 12mMultiple Airlines

Deal found 6/10

$556

Tue 7/1511:00 amDCA - SIN

2 stops32h 05mAir Canada

Deal found 6/11

$628

Tue 10/712:35 pmIAD - SIN

2 stops30h 30mAir Canada

Deal found 6/11

$663

Tue 7/810:08 pmDCA - SIN

2 stops31h 22mJapan Airlines

Deal found 6/9

$695

Mon 8/47:00 pmBWI - SIN

1 stop23h 15mUnited Airlines

Deal found 6/10

$698

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

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Mon 9/8

1:37 pm-5:00 am

2 stops51h 23m

Singapore Changi

Wed 9/17

1:10 am-9:02 pm

2 stops31h 52m

$1,007

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 7/16

5:12 pm-7:05 am

2 stops49h 53m

Singapore Changi

Tue 7/22

9:10 am-9:37 am

2 stops36h 27m

$1,086

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 9/1

8:35 am-11:40 pm

2 stops27h 05m

Singapore Changi

Tue 9/9

1:10 am-9:47 pm

2 stops32h 37m

$1,093

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 7/9

1:30 pm-8:45 am

1 stop31h 15m

Singapore Changi

Tue 10/7

5:10 am-7:45 pm

1 stop26h 35m

$1,095

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/8

6:00 am-11:40 pm

2 stops29h 40m

Singapore Changi

Wed 9/17

1:10 am-9:13 pm

2 stops32h 03m

$1,096

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 11/13

8:05 pm-2:55 pm

1 stop29h 50m

Singapore Changi

Tue 11/18

5:25 pm-8:20 am

2 stops27h 55m

$1,102

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 7/16

1:30 pm-5:55 pm

1 stop40h 25m

Singapore Changi

Tue 7/22

7:45 pm-7:45 pm

2 stops36h 00m

$1,103

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 7/12

4:30 pm-7:05 am

2 stops50h 35m

Singapore Changi

Sat 7/19

9:10 am-10:18 am

2 stops37h 08m

$1,113

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 7/20

12:50 pm-7:15 am

1 stop30h 25m

Singapore Changi

Mon 8/4

8:45 am-11:15 am

1 stop38h 30m

$1,116

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Mon 9/8

6:55 pm-7:50 am

1 stop24h 55m

Singapore Changi

Thu 9/18

8:45 pm-5:07 pm

1 stop32h 22m

$1,123

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 EVA Air, Korean Air and Japan Airlines 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.

8.4

Very good

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

8.4

Very good

8.4

Very good

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Korean Air

8.4

Very good

1,088 reviews

8.4

Very good

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Japan Airlines

8.3

Very good

1,489 reviews

8.4

Very good

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

ANA

8.3

Very good

882 reviews

8.4

Very good

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Singapore Airlines

8.1

Very good

1,302 reviews

8.4

Very good