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Cheap flights from Washington, D.C. to Singapore from S$ 605

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 25-8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
14 Aug — 21 Aug1
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 15 July 2026.

Wed 9-915:10
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Wed 23-921:00
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 15-7S$ 1,168
Sat 10-1013:20
IAD
-
SIN
1 stop40h 35m
Turkish Airlines
Thu 15-1023:05
SIN
-
IAD
1 stop24h 30m
Turkish Airlines
Deal found 13-7S$ 1,194
Mon 7-913:20
IAD
-
SIN
1 stop40h 35m
Turkish Airlines
Sun 20-910:25
SIN
-
IAD
1 stop37h 10m
Turkish Airlines
Deal found 13-7S$ 1,195
Wed 9-921:45
IAD
-
SIN
1 stop23h 00m
Turkish Airlines
Wed 23-923:05
SIN
-
IAD
1 stop24h 30m
Turkish Airlines
Deal found 14-7S$ 1,207
Mon 19-1013:20
IAD
-
SIN
1 stop40h 35m
Turkish Airlines
Sat 31-1023:15
SIN
-
IAD
1 stop26h 30m
Turkish Airlines
Deal found 14-7S$ 1,213
Sun 4-1013:20
IAD
-
SIN
1 stop40h 35m
Turkish Airlines
Sun 11-1010:25
SIN
-
IAD
1 stop45h 25m
Turkish Airlines
Deal found 14-7S$ 1,224
Mon 5-1021:45
IAD
-
SIN
1 stop32h 10m
Turkish Airlines
Sun 11-1010:25
SIN
-
IAD
1 stop45h 25m
Turkish Airlines
Deal found 14-7S$ 1,225
Mon 28-921:45
IAD
-
SIN
1 stop32h 10m
Turkish Airlines
Thu 8-1010:25
SIN
-
IAD
1 stop45h 25m
Turkish Airlines
Deal found 15-7S$ 1,226
Fri 11-913:20
IAD
-
SIN
1 stop40h 35m
Turkish Airlines
Sun 20-910:25
SIN
-
IAD
1 stop37h 10m
Turkish Airlines
Deal found 12-7S$ 1,227
Sat 31-1022:20
IAD
-
SIN
1 stop22h 15m
Turkish Airlines
Thu 5-1105:10
SIN
-
IAD
1 stop28h 15m
Turkish Airlines
Deal found 15-7S$ 1,235
Fri 30-1022:20
IAD
-
SIN
1 stop22h 25m
Turkish Airlines
Sat 7-1123:15
SIN
-
IAD
1 stop25h 30m
Turkish Airlines
Deal found 15-7S$ 1,236
Sat 31-1022:20
IAD
-
SIN
1 stop22h 15m
Turkish Airlines
Tue 3-1123:15
SIN
-
IAD
1 stop26h 30m
Turkish Airlines
Deal found 15-7S$ 1,238

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 15 July 2026.

Round-trip from

S$ 1,168

One-way from

S$ 605

Popular in

December

Cheapest in

August

Average price

S$ 1,611
Etihad Airways
  • Etihad Airways
  • 9-9-23-9
  • 2 total stops
  • 55h 15m total
  • Washington, D.C. to Singapore
Search Deals
25-8
  • 25-8
  • 2 total stops
  • 46h 11m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (S$ 309 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (S$ 119 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 15 July 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

Thu 10-9

21:45-17:55

1 stop32h 10m

Singapore Changi

Thu 24-9

10:25-11:35

1 stop37h 10m

S$ 1,470

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 30-7

13:30-05:00

1 stop27h 30m

Singapore Changi

Sun 6-12

10:40-09:50

1 stop36h 10m

S$ 1,491

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 10-1

11:50-20:25

1 stop43h 35m

Singapore Changi

Mon 22-3

10:40-10:50

1 stop36h 10m

S$ 1,491

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sun 30-8

06:10-23:55

2 stops29h 45m

Singapore Changi

Mon 7-9

01:25-18:39

2 stops29h 14m

S$ 1,495

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 30-8

06:00-23:55

2 stops29h 55m

Singapore Changi

Mon 7-9

01:25-16:30

2 stops27h 05m

S$ 1,495

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 5-11

08:00-00:10

2 stops27h 10m

Singapore Changi

Wed 11-11

10:40-09:50

1 stop36h 10m

S$ 1,497

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 17-11

19:59-20:25

2 stops35h 26m

Singapore Changi

Sat 6-2

22:30-09:50

1 stop24h 20m

S$ 1,497

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 28-11

06:00-00:10

2 stops29h 10m

Singapore Changi

Sun 27-12

01:35-09:50

1 stop21h 15m

S$ 1,497

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 4-8

06:00-23:55

2 stops29h 55m

Singapore Changi

Sun 30-8

01:25-11:15

1 stop21h 50m

S$ 1,497
Fastest return journey

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 25-8

08:28-23:55

2 stops27h 27m

Singapore Changi

Thu 8-10

01:25-11:05

1 stop21h 40m

S$ 1,497

Flights are sorted by cheapest return flights first.

Deals found on 11-7

Showing 1-10 of 57 resultsSorted by cheapest first
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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

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$ 443). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 1,404). 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 15 July 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
9,988 reviews
Check prices

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,988 reviews
United Airlines
7.4
Good
9,988 reviews
Check prices

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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. Turkish Airlines provides one of the quickest options available for as low as S$ 1,491. 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$ 443). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of S$ 1,404). 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

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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 15 July 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapestS$ 1,107AverageS$ 2,553FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Qatar AirwaysCheapestS$ 1,281AverageS$ 2,043FlexibilityNo cancel feeOn-time68%
Search Qatar Airways 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.

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