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Cheap flights from Washington, D.C. to Singapore from S$ 527

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 17-9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
21 May — 28 May1
1 adult

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 16 May 2025.

Round-trip from

S$ 1,382

One-way from

S$ 527

Popular in

December

Cheapest in

November

Average price

S$ 1,585
Korean Air
  • Korean Air
  • 13-8-29-8
  • 3 total stops
  • 56h 05m total
  • Washington, D.C. to Singapore
Search Deals
Air India
  • Air India
  • 17-9
  • 1 total stop
  • 32h 30m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (S$ 83 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (S$ 87 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 16 May 2025.

Wed 13-807:00IAD - SIN
2 stops34h 00mKorean Air
Fri 29-801:10SIN - IAD
1 stop22h 05mKorean Air
Deal found 15-5S$ 1,382
Fri 16-521:40IAD - SIN
1 stop23h 05mTurkish Airlines
Fri 23-510:15SIN - IAD
1 stop37h 30mTurkish Airlines
Deal found 15-5S$ 1,388
Sat 9-811:00IAD - SIN
1 stop32h 30mMultiple Airlines
Sun 24-819:45SIN - IAD
2 stops36h 00mMultiple Airlines
Deal found 14-5S$ 1,390
Mon 30-621:40IAD - SIN
2 stops31h 40mIndiGo
Mon 7-719:45SIN - IAD
2 stops36h 00mIndiGo
Deal found 15-5S$ 1,397
Wed 17-908:25IAD - SIN
2 stops32h 35mAir Canada
Tue 23-901:45SIN - IAD
2 stops40h 46mAir Canada
Deal found 16-5S$ 1,398
Wed 1-1011:00IAD - SIN
2 stops25h 10mQatar Airways
Tue 7-1003:10SIN - IAD
1 stop24h 30mQatar Airways
Deal found 16-5S$ 1,428
Wed 17-921:50IAD - SIN
1 stop29h 00mEthiopian Air
Tue 23-902:00SIN - IAD
1 stop30h 05mEthiopian Air
Deal found 16-5S$ 1,439
Wed 27-818:55BWI - SIN
1 stop24h 55mSingapore Airlines
Mon 8-920:45SIN - BWI
1 stop32h 22mSingapore Airlines
Deal found 15-5S$ 1,467
Wed 13-811:00IAD - SIN
1 stop22h 45mAir India
Sat 30-820:30SIN - IAD
1 stop23h 10mAir India
Deal found 15-5S$ 1,473
Wed 17-906:59DCA - SIN
2 stops29h 46mMultiple Airlines
Tue 23-901:10SIN - DCA
2 stops32h 41mMultiple Airlines
Deal found 16-5S$ 1,508
Mon 18-810:00DCA - SIN
2 stops25h 40mKorean Air
Wed 27-807:30SIN - DCA
2 stops25h 51mKorean Air
Deal found 14-5S$ 1,551
Mon 18-809:36BWI - SIN
2 stops31h 24mDelta
Wed 27-807:30SIN - BWI
2 stops28h 47mDelta
Deal found 14-5S$ 1,561

Cheapflights Fare Finder

Customise your flight search to find flights from Washington, D.C. to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 16 May 2025.
Use the filters below to find and compare flights from Washington, D.C. to Singapore that are best for you.

Fly from

Washington, D.C.

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 13-8

07:00-05:00

2 stops34h 00m

Singapore Changi

Fri 29-8

01:10-11:15

1 stop22h 05m

S$ 1,382

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 8-7

21:40-17:20

2 stops31h 40m

Singapore Changi

Tue 15-7

19:45-19:45

2 stops36h 00m

S$ 1,388

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 9-8

11:00-07:30

1 stop32h 30m

Singapore Changi

Sun 24-8

19:45-19:45

2 stops36h 00m

S$ 1,390

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 19-10

21:40-17:55

1 stop32h 15m

Singapore Changi

Fri 31-10

03:45-12:10

1 stop44h 25m

S$ 1,410

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 1-10

11:00-00:10

2 stops25h 10m

Singapore Changi

Tue 7-10

03:10-15:40

1 stop24h 30m

S$ 1,428

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 1-10

21:50-14:50

1 stop29h 00m

Singapore Changi

Tue 7-10

02:00-20:05

1 stop30h 05m

S$ 1,439

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Wed 27-8

18:55-07:50

1 stop24h 55m

Singapore Changi

Mon 8-9

20:45-17:07

1 stop32h 22m

S$ 1,467

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 15-7

11:00-21:45

1 stop22h 45m

Singapore Changi

Tue 22-7

20:30-07:40

1 stop23h 10m

S$ 1,468

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 17-9

06:59-00:45

2 stops29h 46m

Singapore Changi

Tue 23-9

01:10-21:51

2 stops32h 41m

S$ 1,508

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 18-8

10:00-23:40

2 stops25h 40m

Singapore Changi

Wed 27-8

07:30-21:21

2 stops25h 51m

S$ 1,551

Flights are sorted by cheapest return flights first.

Deals found on 15-5

Showing 1-10 of 60 results
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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 return 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

Rainfall in Singapore by month

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

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals 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 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 16 May 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air and Japan Airlines from Washington, D.C. to Singapore to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very Good
1,192 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Korean Air
8.4
Very Good
1,073 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Japan Airlines
8.3
Very Good
1,473 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
China Airlines
8.3
Very Good
732 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
ANA
8.3
Very Good
869 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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?

    For one-way options, check prices for Air India. According to our data, you can fly for as low as S$ 527. Users have also found prices from S$ 620 and S$ 783 on IndiGo and Korean Air, respectively.

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

    Most travellers choose Washington, D.C. Dulles Intl - Singapore Changi, Washington, D.C. Reagan-National - Singapore Changi or Baltimore/Washington - Singapore Changi when deciding on the best route from Washington, D.C. to Singapore.

  • 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 holiday 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.

See more FAQs

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.
Dulles Intl to Singapore flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Washington, D.C. to Singapore?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to Singapore. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Singapore?

Cheapflights simply makes it quick and affordable to book flights from Washington, D.C. to Singapore by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Washington, D.C. to Singapore with no change fees?

Yes, we can. To see specific flights from Washington, D.C. to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Singapore become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Singapore from Washington, D.C. today and book when prices fit your budget.

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