Find flights
When to book
Airlines
FAQs

Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 701

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 30-6. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Singapore Changi to Washington, D.C. Dulles Intl are usually found in March or April, 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 13 June 2025.

Round-trip from

S$ 1,133

One-way from

S$ 701

Popular in

May

Cheapest in

March

Average price

S$ 1,632
United Airlines
  • United Airlines
  • 26-6-3-7
  • 3 total stops
  • 58h 05m total
  • Singapore to Washington, D.C.
Search Deals
IndiGo
  • IndiGo
  • 30-6
  • 2 total stops
  • 52h 00m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (S$ 22 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (S$ 41 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 13 June 2025.

Thu 26-608:45SIN - IAD
2 stops27h 45mUnited Airlines
Thu 3-712:20IAD - SIN
1 stop30h 20mUnited Airlines
Deal found 12-6S$ 1,133
Mon 14-722:10SIN - IAD
1 stop23h 55mANA
Mon 21-715:39IAD - SIN
2 stops27h 01mANA
Deal found 12-6S$ 1,219
Sun 5-1023:55SIN - IAD
2 stops33h 10mAir Canada
Sun 19-1017:22IAD - SIN
2 stops49h 18mAir Canada
Deal found 12-6S$ 1,262
Sun 5-1010:15SIN - IAD
1 stop37h 30mTurkish Airlines
Sat 18-1021:40IAD - SIN
1 stop32h 15mTurkish Airlines
Deal found 12-6S$ 1,322
Fri 20-608:45SIN - IAD
2 stops38h 30mAir India
Wed 27-812:50IAD - SIN
1 stop30h 25mAir India
Deal found 11-6S$ 1,333
Fri 20-615:10SIN - IAD
2 stops28h 17mMultiple Airlines
Wed 3-918:09IAD - SIN
2 stops29h 51mMultiple Airlines
Deal found 11-6S$ 1,400
Sat 4-1001:55SIN - IAD
2 stops32h 53mAmerican Airlines
Sat 18-1006:45IAD - SIN
2 stops35h 25mAmerican Airlines
Deal found 11-6S$ 1,477
Sat 26-719:45SIN - IAD
2 stops36h 00mIndiGo
Sat 2-813:30IAD - SIN
2 stops40h 15mIndiGo
Deal found 11-6S$ 1,557
Sun 5-1023:20SIN - IAD
1 stop28h 55mSWISS
Sun 19-1017:40IAD - SIN
2 stops59h 25mSWISS
Deal found 12-6S$ 1,646
Sat 4-1003:10SIN - IAD
1 stop24h 30mQatar Airways
Sat 18-1021:00IAD - SIN
1 stop30h 45mQatar Airways
Deal found 11-6S$ 1,738
Mon 14-721:10SIN - IAD
1 stop31h 00mEtihad Airways
Mon 21-722:05IAD - SIN
1 stop23h 35mEtihad Airways
Deal found 12-6S$ 1,848
Tue 29-701:10SIN - IAD
2 stops40h 47mDelta
Fri 8-806:00IAD - SIN
2 stops35h 00mDelta
Deal found 11-6S$ 1,886

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 13 June 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

Thu 26-6

08:45-00:30

2 stops27h 45m

Washington, D.C. Dulles Intl

Thu 3-7

12:20-06:40

1 stop30h 20m

S$ 1,133

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 14-7

22:10-10:05

1 stop23h 55m

Washington, D.C. Dulles Intl

Mon 21-7

15:39-06:40

2 stops27h 01m

S$ 1,219

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

23:55-21:05

2 stops33h 10m

Washington, D.C. Dulles Intl

Sun 19-10

17:22-06:40

2 stops49h 18m

S$ 1,262

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

10:15-11:45

1 stop37h 30m

Washington, D.C. Dulles Intl

Sat 18-10

21:40-17:55

1 stop32h 15m

S$ 1,322

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 17-11

23:55-18:30

1 stop31h 35m

Washington, D.C. Dulles Intl

Fri 12-12

22:00-17:30

2 stops30h 30m

S$ 1,404

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

09:10-09:38

2 stops36h 28m

Washington, D.C. Dulles Intl

Sat 18-10

11:00-21:45

1 stop22h 45m

S$ 1,430

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 30-7

23:00-11:15

2 stops48h 15m

Washington, D.C. Dulles Intl

Fri 8-8

12:50-21:45

1 stop44h 55m

S$ 1,453

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 4-10

01:55-22:48

2 stops32h 53m

Washington, D.C. Dulles Intl

Sat 18-10

06:45-06:10

2 stops35h 25m

S$ 1,477

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 16-11

23:10-20:39

2 stops34h 29m

Washington, D.C. Dulles Intl

Mon 8-12

15:23-21:55

2 stops65h 32m

S$ 1,535

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 26-7

19:45-19:45

2 stops36h 00m

Washington, D.C. Dulles Intl

Sat 2-8

13:30-17:45

2 stops40h 15m

S$ 1,557

Flights are sorted by cheapest return flights first.

Deals found on 10-6

Showing 1-10 of 37 results
1
2
3
4

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 9 June 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.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 13 June 2025.
Read through reviews of airlines operating flights from Singapore to Washington, D.C., such as EVA Air, Korean Air and China Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,204 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very Good
1,091 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very Good
738 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.3
Very Good
882 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Emirates
8.1
Very Good
3,265 reviews
EVA Air
8.4
Very Good
1,204 reviews
Check prices

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 6 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 United Airlines. Our recent data shows that you can find tickets from as low as S$ 1,133 on this airline. Additional options worth looking into are ANA and Air Canada, starting at S$ 1,219 and S$ 1,262 round-trip. Users have found that United Airlines is 33% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Singapore to Washington, D.C. Dulles Intl Airport one-way?

    To fly one-way, consider booking your trip with IndiGo, which is currently one of the cheapest options available, starting at S$ 701. Air Canada flights start at S$ 760 while deals on Air India start at S$ 774 one-way.

  • 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

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.

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 13 June 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 6 airlines flying from Singapore to Dulles Intl

Discover the top 6 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapestS$ 944AverageS$ 1,209FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Turkish AirlinesCheapestS$ 1,236AverageS$ 1,444FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air IndiaCheapestS$ 1,320AverageS$ 1,412FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
United AirlinesCheapestS$ 1,416AverageS$ 1,588FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapestS$ 1,751AverageS$ 2,218FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Qatar AirwaysCheapestS$ 1,769AverageS$ 2,332FlexibilityNo 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?

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.

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.
Site
©2025 Cheapflights