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Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 578

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 16-4. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Singapore to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 November 2025.

Round-trip from

S$ 1,129

One-way from

S$ 578

Popular in

November

Cheapest in

March

Average price

S$ 4,078
Air China
  • Air China
  • 2-3-13-3
  • 2 total stops
  • 60h 50m total
  • Singapore to Washington, D.C.
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Air China
  • Air China
  • 16-4
  • 1 total stop
  • 32h 05m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (S$ 742 potential increase over avg. return price).
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Cheapest flight prices on average. 11% potential price decrease (S$ 259 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find 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 7 November 2025.

Mon 29-1219:25SIN - IAD
1 stop26h 40mEtihad Airways
Tue 13-114:35IAD - SIN
1 stop30h 00mEtihad Airways
Deal found 7-11S$ 1,238
Tue 18-1108:50SIN - IAD
2 stops43h 56mAir Canada
Mon 1-1216:30IAD - SIN
2 stops49h 30mAir Canada
Deal found 7-11S$ 1,240
Tue 18-1110:25SIN - IAD
1 stop38h 20mTurkish Airlines
Mon 1-1213:30IAD - SIN
1 stop39h 05mTurkish Airlines
Deal found 7-11S$ 1,334
Mon 10-1119:25SIN - IAD
1 stop33h 05mEtihad Airways
Mon 24-1121:10IAD - SIN
1 stop23h 25mEtihad Airways
Deal found 7-11S$ 1,358
Thu 4-1215:45SIN - IAD
2 stops27h 21mEVA Air
Thu 11-1218:30IAD - SIN
2 stops28h 35mEVA Air
Deal found 6-11S$ 1,432
Mon 10-1114:25SIN - IAD
2 stops28h 58mMultiple Airlines
Mon 24-1107:38IAD - SIN
2 stops40h 27mMultiple Airlines
Deal found 7-11S$ 1,459
Tue 18-1122:30SIN - IAD
2 stops30h 00mMultiple Airlines
Mon 1-1213:30IAD - SIN
1 stop39h 05mMultiple Airlines
Deal found 7-11S$ 1,460
Mon 29-1218:30SIN - IAD
2 stops37h 00mAir China
Tue 13-122:00IAD - SIN
1 stop34h 55mAir China
Deal found 7-11S$ 1,481
Tue 11-1108:50SIN - IAD
2 stops25h 04mAir Canada
Wed 31-1213:15IAD - SIN
2 stops28h 45mAir Canada
Deal found 6-11S$ 1,503
Tue 11-1119:25SIN - IAD
1 stop33h 05mMultiple Airlines
Wed 31-1210:40IAD - SIN
1 stop21h 35mMultiple Airlines
Deal found 5-11S$ 1,539
Mon 29-1211:15SIN - IAD
2 stops34h 50mMultiple Airlines
Tue 13-114:35IAD - SIN
3 stops29h 30mMultiple Airlines
Deal found 7-11S$ 1,570

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 7 November 2025.
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

Singapore

Fly to

Dulles Intl

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 18-11

08:50-15:46

2 stops43h 56m

Washington, D.C. Dulles Intl

Mon 1-12

16:30-07:00

2 stops49h 30m

S$ 1,240

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 9-2

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 12-2

14:35-09:35

1 stop30h 00m

S$ 1,255

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 11-3

22:30-10:50

1 stop24h 20m

Washington, D.C. Dulles Intl

Sun 15-3

12:50-05:00

1 stop28h 10m

S$ 1,272

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 12-3

15:35-09:35

1 stop30h 00m

S$ 1,278

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 11-3

19:25-10:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 15-3

15:35-09:35

1 stop30h 00m

S$ 1,278

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 2-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 15-3

15:35-09:35

1 stop30h 00m

S$ 1,278

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 15-3

15:35-09:35

1 stop30h 00m

S$ 1,278

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 2-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Mon 16-3

15:35-09:35

1 stop30h 00m

S$ 1,278

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 1-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Tue 17-3

15:35-09:35

1 stop30h 00m

S$ 1,278

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3-3

19:25-09:05

1 stop26h 40m

Washington, D.C. Dulles Intl

Wed 11-3

15:35-09:35

1 stop30h 00m

S$ 1,278

Flights are sorted by cheapest return flights first.

Deals found on 5-11

Showing 1-10 of 23 results
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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$ 1,069). Flying from Singapore to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,653). 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 much does it cost for a return flight from Singapore to Washington, D.C. Dulles Intl Airport?

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 7 November 2025.
Get a feel of what it's like to fly with Korean Air, Qatar Airways, andUnited Airlines from Singapore to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,161 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

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
1,161 reviews
Korean Air
8.4
Very Good
1,161 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

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
3,661 reviews
Korean Air
8.4
Very Good
1,161 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

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!!
United Airlines
7.4
Good
9,007 reviews
Korean Air
8.4
Very Good
1,161 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

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
7.3
Good
4,033 reviews
Korean Air
8.4
Very Good
1,161 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

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!!
Air India
5.5
Fair
2,942 reviews
Korean Air
8.4
Very Good
1,161 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Food

8.1

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.

  • What airport do you fly from for flights from Singapore to Washington, D.C. Dulles Intl?

    Located just 16.9 km from the city centre, Singapore Changi is the airport most travellers will use when flying to Washington, D.C. Dulles Intl from Singapore. Booking flights from Changi (SIN) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 5 different airlines.

  • How long is the flight from Singapore to Washington, D.C. Dulles Intl Airport?

    For as low as S$ 1,272, Air Canada can have you in Washington, D.C. Dulles Intl Airport from Singapore in 24h 20m. 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.

  • What are the cheapest airlines flying from Singapore to Washington, D.C. Dulles Intl Airport round-trip?

    Our cheapest airline available from Singapore to Washington, D.C. Dulles Intl Airport is Turkish Airlines. Our recent data shows that you can find tickets from as low as S$ 1,275 on this airline. Additional options worth looking into are United Airlines and Korean Air, starting at S$ 1,289 and S$ 1,290 round-trip. Users have found that Turkish Airlines is 32% cheaper than the other options available to this destination.

  • 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$ 1,069). Flying from Singapore to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of S$ 1,653). 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

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Fly from Singapore to Dulles Intl on these airlines

Choose from the following airlines for your flight from Singapore to Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on 7 November 2025.
United Airlines flights from Singapore Changi to Washington, D.C. Dulles Intl
Qatar Airways flights from Singapore Changi to Washington, D.C. Dulles Intl

Top 5 airlines flying from Singapore to Dulles Intl

Discover the top 5 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapestS$ 1,275AverageS$ 1,503FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
United AirlinesCheapestS$ 1,289AverageS$ 1,599FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapestS$ 1,290AverageS$ 2,227FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Air IndiaCheapestS$ 1,346AverageS$ 1,391FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Qatar AirwaysCheapestS$ 1,803AverageS$ 1,933FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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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?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Singapore to Dulles Intl for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from Singapore to Dulles Intl with no change fees.

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

Yes! Start tracking prices for Singapore to Dulles Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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