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Cheap flights from Washington, D.C. to Singapore from S$ 538

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 2-9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

S$ 1,399

One-way from

S$ 538

Popular in

December

Cheapest in

October

Average price

S$ 1,820
Korean Air
  • Korean Air
  • 1-9-9-9
  • 4 total stops
  • 59h 42m total
  • Washington, D.C. to Singapore
Search Deals
IndiGo
  • IndiGo
  • 2-9
  • 2 total stops
  • 39h 50m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (S$ 119 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (S$ 86 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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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 13 June 2025.

Mon 1-908:35DCA - SIN
2 stops27h 05mKorean Air
Tue 9-901:10SIN - DCA
2 stops32h 37mKorean Air
Deal found 11-6S$ 1,399
Wed 9-713:30IAD - SIN
1 stop31h 15mTurkish Airlines
Tue 7-1005:10SIN - IAD
1 stop26h 35mTurkish Airlines
Deal found 11-6S$ 1,402
Mon 8-906:00IAD - SIN
2 stops29h 40mKorean Air
Wed 17-901:10SIN - IAD
2 stops32h 03mKorean Air
Deal found 12-6S$ 1,403
Sun 14-1211:00IAD - SIN
1 stop31h 00mAir India
Mon 22-1208:20SIN - IAD
1 stop35h 30mAir India
Deal found 12-6S$ 1,408
Thu 13-1120:05IAD - SIN
1 stop29h 50mQatar Airways
Tue 18-1117:25SIN - IAD
2 stops27h 55mQatar Airways
Deal found 12-6S$ 1,411
Wed 9-713:30IAD - SIN
1 stop40h 25mMultiple Airlines
Wed 23-719:45SIN - IAD
2 stops36h 00mMultiple Airlines
Deal found 11-6S$ 1,413
Wed 13-813:37BWI - SIN
1 stop27h 38mMultiple Airlines
Sat 30-814:35SIN - BWI
2 stops42h 27mMultiple Airlines
Deal found 11-6S$ 1,420
Fri 11-709:10IAD - SIN
2 stops33h 55mAir Canada
Thu 17-701:45SIN - IAD
2 stops40h 36mAir Canada
Deal found 11-6S$ 1,438
Fri 12-909:40DCA - SIN
2 stops33h 25mAir Canada
Sun 28-909:10SIN - DCA
2 stops35h 49mAir Canada
Deal found 11-6S$ 1,452
Wed 9-721:40IAD - SIN
2 stops32h 05mIndiGo
Wed 23-719:45SIN - IAD
2 stops36h 00mIndiGo
Deal found 11-6S$ 1,466
Thu 20-1120:40IAD - SIN
2 stops29h 10mEthiopian Air
Sun 30-1102:00SIN - IAD
2 stops30h 05mEthiopian Air
Deal found 11-6S$ 1,490
Sat 11-1019:28BWI - SIN
1 stop24h 22mSingapore Airlines
Sun 19-1018:40SIN - BWI
1 stop24h 33mSingapore Airlines
Deal found 12-6S$ 1,500

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 13 June 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

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 1-9

08:35-23:40

2 stops27h 05m

Singapore Changi

Tue 9-9

01:10-21:47

2 stops32h 37m

S$ 1,399

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9-7

13:30-08:45

1 stop31h 15m

Singapore Changi

Tue 7-10

05:10-19:45

1 stop26h 35m

S$ 1,402

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8-9

06:00-23:40

2 stops29h 40m

Singapore Changi

Wed 17-9

01:10-21:13

2 stops32h 03m

S$ 1,403

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 13-11

20:05-14:55

1 stop29h 50m

Singapore Changi

Tue 18-11

17:25-08:20

2 stops27h 55m

S$ 1,411

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9-7

13:30-17:55

1 stop40h 25m

Singapore Changi

Wed 23-7

19:45-19:45

2 stops36h 00m

S$ 1,413

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Wed 13-8

13:37-05:15

1 stop27h 38m

Singapore Changi

Sat 30-8

14:35-21:02

2 stops42h 27m

S$ 1,420

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 20-7

12:50-07:15

1 stop30h 25m

Singapore Changi

Mon 4-8

08:45-11:15

1 stop38h 30m

S$ 1,429

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 11-7

09:10-07:05

2 stops33h 55m

Singapore Changi

Thu 17-7

01:45-06:21

2 stops40h 36m

S$ 1,438

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Fri 12-9

09:40-07:05

2 stops33h 25m

Singapore Changi

Sun 28-9

09:10-08:59

2 stops35h 49m

S$ 1,452

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9-7

21:40-17:45

2 stops32h 05m

Singapore Changi

Wed 23-7

19:45-19:45

2 stops36h 00m

S$ 1,466

Flights are sorted by cheapest return flights first.

Deals found on 11-6

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 13 June 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
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

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
EVA Air
8.4
Very Good
1,202 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

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
1,091 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

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
1,490 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

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
China Airlines
8.3
Very Good
738 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

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
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Overall

8.4

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

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

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 IndiGo. According to our data, you can fly for as low as S$ 538. Users have also found prices from S$ 541 and S$ 570 on Air India and Turkish Airlines, 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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