Find flights
When to book
Airlines
FAQs

Cheap flights from Washington, D.C. to Singapore from S$ 612

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 15-9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
24 Jul — 31 Jul1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

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 24 June 2026.

Tue 15-915:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Tue 22-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 24-6S$ 1,351
Sun 23-815:10
IAD
-
SIN
1 stop30h 30m
Multiple Airlines
Thu 3-917:55
SIN
-
IAD
1 stop37h 35m
Multiple Airlines
Deal found 24-6S$ 1,405
Sat 17-1014:55
DCA
-
SIN
2 stops57h 50m
Gulf Air
Thu 22-1020:00
SIN
-
DCA
2 stops38h 57m
Gulf Air
Deal found 22-6S$ 1,421
Wed 9-915:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Wed 23-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 24-6S$ 1,429
Tue 4-809:40
DCA
-
SIN
2 stops31h 35m
Air Canada
Tue 25-807:00
SIN
-
DCA
2 stops26h 48m
Air Canada
Deal found 24-6S$ 1,433
Tue 24-1109:55
IAD
-
SIN
2 stops32h 05m
Air Canada
Tue 8-1208:40
SIN
-
IAD
2 stops24h 43m
Air Canada
Deal found 24-6S$ 1,433
Thu 10-908:15
IAD
-
SIN
2 stops33h 00m
Air Canada
Thu 24-907:00
SIN
-
IAD
2 stops36h 43m
Air Canada
Deal found 24-6S$ 1,436
Thu 8-1013:20
IAD
-
SIN
1 stop33h 50m
Turkish Airlines
Tue 13-1005:25
SIN
-
IAD
1 stop26h 25m
Turkish Airlines
Deal found 22-6S$ 1,439
Tue 18-821:45
IAD
-
SIN
1 stop23h 00m
Turkish Airlines
Wed 2-911:10
SIN
-
IAD
1 stop36h 25m
Turkish Airlines
Deal found 24-6S$ 1,440
Thu 13-812:40
DCA
-
SIN
2 stops28h 35m
Air Canada
Tue 25-807:00
SIN
-
DCA
2 stops26h 48m
Air Canada
Deal found 23-6S$ 1,442
Sun 1-1122:20
IAD
-
SIN
1 stop21h 25m
Turkish Airlines
Wed 4-1111:35
SIN
-
IAD
1 stop38h 10m
Turkish Airlines
Deal found 23-6S$ 1,442
Tue 13-1013:20
IAD
-
SIN
1 stop40h 35m
Turkish Airlines
Fri 23-1010:25
SIN
-
IAD
1 stop37h 10m
Turkish Airlines
Deal found 23-6S$ 1,446

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 24 June 2026.

Round-trip from

S$ 1,351

One-way from

S$ 612

Popular in

December

Cheapest in

August

Average price

S$ 1,996
Etihad Airways
  • Etihad Airways
  • 15-9-22-9
  • 2 total stops
  • 55h 15m total
  • Washington, D.C. to Singapore
Search Deals
Etihad Airways
  • Etihad Airways
  • 15-9
  • 1 total stop
  • 30h 30m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (S$ 311 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (S$ 120 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 24 June 2026.
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

Cheapest return flight

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 31-10

21:10-18:05

1 stop32h 55m

Singapore Changi

Thu 12-11

00:05-14:30

2 stops27h 25m

S$ 1,669

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 4-8

13:30-05:00

1 stop27h 30m

Singapore Changi

Tue 25-8

22:00-16:42

2 stops30h 42m

S$ 1,700

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 31-10

19:10-18:05

2 stops34h 55m

Singapore Changi

Tue 10-11

00:05-15:05

2 stops28h 00m

S$ 1,700

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 29-7

06:00-05:00

2 stops35h 00m

Singapore Changi

Tue 11-8

22:00-16:42

2 stops30h 42m

S$ 1,706

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 10-8

21:00-18:15

2 stops33h 15m

Singapore Changi

Thu 20-8

19:40-15:40

1 stop32h 00m

S$ 1,848

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 25-9

21:00-08:50

1 stop23h 50m

Singapore Changi

Tue 29-9

03:15-15:40

1 stop24h 25m

S$ 1,854

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Sun 13-9

07:26-18:30

2 stops47h 04m

Singapore Changi

Sun 27-9

21:35-22:59

2 stops37h 24m

S$ 1,928

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 2-11

12:59-18:40

2 stops40h 41m

Singapore Changi

Wed 11-11

22:05-21:00

2 stops35h 55m

S$ 1,980

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 31-10

19:06-18:40

2 stops35h 34m

Singapore Changi

Wed 11-11

22:05-21:00

2 stops35h 55m

S$ 1,980

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 20-7

19:26-19:15

2 stops35h 49m

Singapore Changi

Sun 2-8

01:25-20:55

2 stops31h 30m

S$ 1,991

Flights are sorted by cheapest return flights first.

Deals found on 24-6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

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 S$ 445). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 1,392). 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.

How far ahead should I book a flight from Washington, D.C. to Singapore?

The best time to book flights from Washington, D.C. to Singapore is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 24 June 2026.
See what other customers who have flown with United Airlines from Washington, D.C. to Singapore have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,881 reviews
Check prices

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
9,881 reviews
United Airlines
7.4
Good
9,881 reviews
Check prices

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

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?

    A quick flight from Washington, D.C. to Singapore can take about 27h 30m. SWISS provides one of the quickest options available for as low as S$ 1,700. Airlines will cover a distance of 15521 km. This flight may include one or multiple stops.

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

    Most travellers choose Washington, D.C. Dulles Intl - Singapore Changi, Baltimore/Washington - Singapore Changi or Washington, D.C. Reagan-National - 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.

  • 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 S$ 445). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 1,392). 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

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

Top 2 airlines flying from Washington, D.C. to Singapore

Discover the top 2 airlines that operate flights from Washington, D.C. to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 24 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapestS$ 1,376AverageS$ 2,243FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
JetBlueCheapestS$ 1,392AverageS$ 2,558FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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.