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Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 905

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 11-4. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
29 Apr — 6 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Singapore to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Singapore to Dulles Intl
Explore the most affordable flight options available from Singapore to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 March 2026.

Thu 23-423:25
SIN
-
IAD
1 stop32h 05m
Multiple Airlines
Mon 4-515:10
IAD
-
SIN
1 stop30h 30m
Multiple Airlines
Deal found 30-3S$ 1,370
Thu 23-423:25
SIN
-
IAD
1 stop32h 05m
Multiple Airlines
Sun 3-515:10
IAD
-
SIN
1 stop30h 30m
Multiple Airlines
Deal found 29-3S$ 1,383
Sat 14-1115:45
SIN
-
IAD
2 stops28h 43m
Multiple Airlines
Wed 25-1117:38
IAD
-
SIN
2 stops29h 27m
Multiple Airlines
Deal found 28-3S$ 1,394
Thu 23-420:35
SIN
-
IAD
1 stop23h 15m
United Airlines
Sun 3-508:20
IAD
-
SIN
2 stops34h 25m
United Airlines
Deal found 29-3S$ 1,415
Sat 14-1114:45
SIN
-
IAD
2 stops29h 43m
STARLUX Airlines
Wed 25-1117:38
IAD
-
SIN
2 stops30h 47m
STARLUX Airlines
Deal found 29-3S$ 1,432
Thu 14-520:35
SIN
-
IAD
1 stop23h 00m
United Airlines
Sat 8-822:20
IAD
-
SIN
2 stops32h 15m
United Airlines
Deal found 26-3S$ 1,456
Sun 3-520:35
SIN
-
IAD
1 stop37h 52m
United Airlines
Sat 9-522:30
IAD
-
SIN
2 stops32h 05m
United Airlines
Deal found 25-3S$ 1,474
Tue 14-420:35
SIN
-
IAD
1 stop37h 43m
United Airlines
Sat 18-422:30
IAD
-
SIN
2 stops32h 05m
United Airlines
Deal found 27-3S$ 1,505
Sat 14-1113:15
SIN
-
IAD
1 stop20h 40m
EVA Air
Wed 25-1117:38
IAD
-
SIN
2 stops29h 27m
EVA Air
Deal found 28-3S$ 1,536
Sat 14-1105:25
SIN
-
IAD
1 stop43h 20m
Turkish Airlines
Wed 25-1121:10
IAD
-
SIN
1 stop22h 35m
Turkish Airlines
Deal found 28-3S$ 1,544
Tue 1-915:20
SIN
-
IAD
1 stop42h 40m
Multiple Airlines
Wed 30-917:38
IAD
-
SIN
2 stops30h 17m
Multiple Airlines
Deal found 26-3S$ 1,571

Find flight deals from Singapore to Dulles Intl

Keep the following information in mind while searching for Singapore to Dulles Intl flight deals. Data was last updated 30 March 2026.

Round-trip from

S$ 1,456

One-way from

S$ 905

Popular in

April

Cheapest in

September

Average price

S$ 1,915
United Airlines
  • United Airlines
  • 14-5-8-8
  • 3 total stops
  • 55h 15m total
  • Singapore to Washington, D.C.
Search Deals
11-4
  • 11-4
  • 3 total stops
  • 47h 05m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (S$ 361 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (S$ 76 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Singapore to Dulles Intl 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 30 March 2026.
Use the filters below to find and compare flights from Singapore to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 14-4

20:35-22:18

1 stop37h 43m

Washington, D.C. Dulles Intl

Sat 18-4

22:30-18:35

2 stops32h 05m

S$ 1,505

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 19-5

20:35-11:47

2 stops27h 12m

Washington, D.C. Dulles Intl

Tue 26-5

22:21-18:35

1 stop32h 14m

S$ 1,701
Fastest return journey

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 21-5

20:35-11:28

2 stops26h 53m

Washington, D.C. Dulles Intl

Thu 28-5

06:30-18:35

1 stop24h 05m

S$ 1,790

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 1-9

05:25-11:35

1 stop42h 10m

Washington, D.C. Dulles Intl

Wed 30-9

13:20-08:45

1 stop31h 25m

S$ 1,822

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 1-7

08:45-05:53

1 stop33h 08m

Washington, D.C. Dulles Intl

Sat 1-8

22:20-18:35

2 stops32h 15m

S$ 1,827

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 19-5

15:20-07:34

2 stops28h 14m

Washington, D.C. Dulles Intl

Fri 19-6

20:21-11:55

2 stops27h 34m

S$ 1,842

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 26-4

20:35-01:25

1 stop40h 50m

Washington, D.C. Dulles Intl

Fri 1-5

22:30-18:35

2 stops32h 05m

S$ 1,848

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 11-8

08:45-06:00

1 stop33h 15m

Washington, D.C. Dulles Intl

Fri 14-8

06:30-06:15

2 stops35h 45m

S$ 1,900

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 10-5

20:35-07:35

1 stop23h 00m

Washington, D.C. Dulles Intl

Sun 17-5

06:00-06:45

2 stops36h 45m

S$ 1,909

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 19-5

01:40-08:40

1 stop43h 00m

Washington, D.C. Dulles Intl

Wed 27-5

10:55-08:35

1 stop33h 40m

S$ 1,926

Flights are sorted by cheapest return flights first.

Deals found on 25-3

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Singapore to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Singapore 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 Singapore to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Singapore to Washington, D.C. Dulles Intl Airport?

Currently, May is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of S$ 980). Flying from Singapore to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of S$ 2,848). 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.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 30 March 2026.
Read through reviews of airlines operating flights from Singapore to Washington, D.C. Dulles Intl Airport, such as Korean Air,Qatar Airways, andTurkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,203 reviews
Korean Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Qatar Airways
7.4
Good
3,730 reviews
Korean Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Turkish Airlines
7.4
Good
4,286 reviews
Korean Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Singapore to Dulles Intl. 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 Singapore to Washington, D.C. Dulles Intl Airport?

    For as low as S$ 1,505, United Airlines can have you in Washington, D.C. Dulles Intl Airport from Singapore in 37h 43m. The distance between Singapore and Washington, D.C. Dulles Intl Airport is about 15521 km. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Singapore to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Singapore to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Singapore to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Dulles Intl.

  • Can I find deals for business class flights from Singapore to Dulles Intl?

    Yes. Cheapflights offers flight deals from Singapore to Dulles Intl 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 Singapore to Washington, D.C. Dulles Intl Airport?

    Currently, May is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of S$ 980). Flying from Singapore to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of S$ 2,848). 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 Singapore to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Singapore to Reagan-National flights
Singapore to Dulles Intl flights
Singapore to Baltimore flights

Top 3 airlines flying from Singapore to Dulles Intl

Discover the top 3 airlines that operate flights from Singapore to Dulles Intl. 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 30 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapestS$ 962AverageS$ 1,813FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Turkish AirlinesCheapestS$ 1,283AverageS$ 1,474FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapestS$ 1,784AverageS$ 1,860FlexibilityNo 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 Singapore to Dulles Intl?

Deals for Singapore to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Singapore to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Singapore to Dulles Intl.

Can Cheapflights find flights from Singapore to Dulles Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Singapore to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Singapore to Dulles Intl become cheaper?

Not ready to book yet? You can track prices for flights from Singapore to Dulles Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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