Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 600

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 8-9. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from Singapore Changi to Washington, D.C. Dulles Intl are usually found in September or March, booked 78 days in advance, depart on a Friday or Monday and return on a Monday

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 15 August 2025.

Round-trip from

S$ 1,018

One-way from

S$ 600

Popular in

July

Cheapest in

September

Average price

S$ 1,804
Air China
  • Air China
  • 19-9-23-9
  • 2 total stops
  • 57h 25m total
  • Singapore to Washington, D.C.
Air China
  • Air China
  • 8-9
  • 1 total stop
  • 32h 05m total
  • Singapore to Washington, D.C.
Highest demand for flights based on searches. 9% potential increase in price (S$ 220 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (S$ 39 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Singapore to Dulles Intl

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 15 August 2025.

Fri 19-909:00SIN - IAD
1 stop22h 30mAir China
Tue 23-923:00IAD - SIN
1 stop34h 55mAir China
Deal found 14-8S$ 1,018
Fri 19-909:00SIN - IAD
1 stop22h 30mMultiple Airlines
Tue 23-921:40IAD - SIN
2 stops32h 05mMultiple Airlines
Deal found 13-8S$ 1,124
Sun 5-1009:10SIN - IAD
2 stops38h 03mAir Canada
Sun 19-1009:35IAD - SIN
2 stops33h 30mAir Canada
Deal found 14-8S$ 1,144
Thu 30-1008:50SIN - IAD
2 stops24h 09mAir Canada
Sat 8-1122:11IAD - SIN
2 stops43h 49mAir Canada
Deal found 14-8S$ 1,162
Thu 30-1023:55SIN - IAD
1 stop31h 35mMultiple Airlines
Sat 8-1113:30IAD - SIN
2 stops38h 50mMultiple Airlines
Deal found 14-8S$ 1,168
Fri 19-906:15SIN - IAD
2 stops26h 50mAir Canada
Tue 23-914:25IAD - SIN
2 stops28h 40mAir Canada
Deal found 13-8S$ 1,191
Wed 3-906:15SIN - IAD
2 stops26h 40mANA
Wed 17-912:15IAD - SIN
1 stop30h 25mANA
Deal found 13-8S$ 1,192
Wed 10-919:45SIN - IAD
2 stops36h 00mIndiGo
Wed 17-913:30IAD - SIN
2 stops39h 50mIndiGo
Deal found 13-8S$ 1,201
Sun 28-922:10SIN - IAD
2 stops35h 15mAir Canada
Sun 5-1017:15IAD - SIN
2 stops25h 50mAir Canada
Deal found 14-8S$ 1,204
Sun 28-919:45SIN - IAD
2 stops36h 00mIndiGo
Sun 5-1021:40IAD - SIN
2 stops31h 40mIndiGo
Deal found 14-8S$ 1,226

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 15 August 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

Fri 19-9

09:00-19:30

1 stop22h 30m

Washington, D.C. Dulles Intl

Tue 23-9

23:00-21:55

1 stop34h 55m

S$ 1,018

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 19-9

09:00-19:30

1 stop22h 30m

Washington, D.C. Dulles Intl

Tue 23-9

21:40-17:45

2 stops32h 05m

S$ 1,124

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

09:10-11:13

2 stops38h 03m

Washington, D.C. Dulles Intl

Sun 19-10

09:35-07:05

2 stops33h 30m

S$ 1,138

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 30-10

08:50-20:59

2 stops24h 09m

Washington, D.C. Dulles Intl

Sat 8-11

22:11-07:00

2 stops43h 49m

S$ 1,162

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 30-10

23:55-19:30

1 stop31h 35m

Washington, D.C. Dulles Intl

Sat 8-11

13:30-17:20

2 stops38h 50m

S$ 1,168

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 19-9

06:15-21:05

2 stops26h 50m

Washington, D.C. Dulles Intl

Tue 23-9

14:25-07:05

2 stops28h 40m

S$ 1,191

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 3-9

06:15-20:55

2 stops26h 40m

Washington, D.C. Dulles Intl

Wed 17-9

12:15-06:40

1 stop30h 25m

S$ 1,199

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 10-9

19:45-19:45

2 stops36h 00m

Washington, D.C. Dulles Intl

Wed 17-9

13:30-17:20

2 stops39h 50m

S$ 1,201

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 28-9

22:10-21:25

2 stops35h 15m

Washington, D.C. Dulles Intl

Sun 5-10

17:15-07:05

2 stops25h 50m

S$ 1,204

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 28-9

19:45-19:45

2 stops36h 00m

Washington, D.C. Dulles Intl

Sun 5-10

21:40-17:20

2 stops31h 40m

S$ 1,226

Flights are sorted by cheapest return flights first.

Deals found on 13-8

Showing 1-10 of 20 results
1
2

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

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

Use this chart to determine the optimal time to book a return flight from Singapore to Dulles Intl. Price data was last updated on 8 August 2025.

To ensure you get the cheapest price possible for a flight from Singapore to Washington, D.C. Dulles Intl Airport, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How much does it cost for a return flight from Singapore to Washington, D.C. Dulles Intl Airport?

What’s the top stopover airport for flights from Singapore to Washington, D.C. Dulles Intl Airport?

Share of one-stop return flights from Singapore to Washington, D.C. Dulles Intl Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Istanbul (IST) – chosen by Cheapflights users on 25% of one-stop itineraries from Singapore to Washington, D.C. Dulles Intl Airport on Cheapflights.

What’s the cheapest stopover airport for flights from Singapore to Washington, D.C. Dulles Intl Airport?

Average return fare for one-stop flights from Singapore to Washington, D.C. Dulles Intl Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Jeddah (JED) is the most affordable one-stop option, with an average return flight price of S$ 1,184.

What’s the fastest stopover option from Singapore to Washington, D.C. Dulles Intl Airport?

Shortest average travel time for one-stop one-way flights from Singapore to Washington, D.C. Dulles Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Incheon (ICN) have the shortest average one-way travel time for one-stop routes: 22h 36m.

Which airport typically offers the quickest stopover for flights from Singapore to Washington, D.C. Dulles Intl Airport?

Average stopover duration for one-stop one-way flights from Singapore to Washington, D.C. Dulles Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Dubai (DXB) offer the fastest connection on this route, with an average stopover time of 1h 53m.

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 15 August 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.

Crew

8.7

Boarding

8.5

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

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!!

Crew

8.7

Boarding

8.5

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

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!!

Crew

8.7

Boarding

8.5

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

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!!

Crew

8.7

Boarding

8.5

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

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!!

Crew

8.7

Boarding

8.5

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

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!!

Crew

8.7

Boarding

8.5

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

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.

  • 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$ 1,238 on this airline. Additional options worth looking into are United Airlines and Air India, starting at S$ 1,270 and S$ 1,322 round-trip. Users have found that Turkish Airlines is 24% 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.

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 15 August 2025.

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 15 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapestS$ 1,238AverageS$ 1,476FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
United AirlinesCheapestS$ 1,270AverageS$ 1,591FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air IndiaCheapestS$ 1,322AverageS$ 1,415FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Korean AirCheapestS$ 1,617AverageS$ 2,221FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Qatar AirwaysCheapestS$ 1,762AverageS$ 2,193FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

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How does Cheapflights help users find flights from Singapore to Dulles Intl?

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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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