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Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 650

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 2-7. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
20 May — 27 May1
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 15 May 2025.

Round-trip from

S$ 1,365

One-way from

S$ 650

Popular in

May

Cheapest in

March

Average price

S$ 1,980
Air India
  • Air India
  • 20-6-9-9
  • 2 total stops
  • 45h 55m total
  • Singapore to Washington, D.C.
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IndiGo
  • IndiGo
  • 2-7
  • 2 total stops
  • 36h 00m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (S$ 32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (S$ 30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2025
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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 May 2025.

Fri 20-609:00SIN - IAD
1 stop34h 40mAir India
Wed 27-811:00IAD - SIN
1 stop32h 30mAir India
Deal found 14-5S$ 1,365
Sun 18-510:15SIN - IAD
1 stop37h 30mTurkish Airlines
Sun 25-521:40IAD - SIN
1 stop23h 05mTurkish Airlines
Deal found 13-5S$ 1,369
Sat 28-619:45SIN - IAD
2 stops36h 00mIndiGo
Sat 5-721:40IAD - SIN
2 stops31h 40mIndiGo
Deal found 14-5S$ 1,381
Sun 5-1015:10SIN - IAD
2 stops28h 23mMultiple Airlines
Sat 18-1006:25IAD - SIN
2 stops41h 35mMultiple Airlines
Deal found 14-5S$ 1,407
Sun 5-1009:10SIN - IAD
2 stops36h 28mAir Canada
Sat 18-1017:10IAD - SIN
2 stops49h 55mAir Canada
Deal found 14-5S$ 1,433
Sun 27-720:40SIN - IAD
2 stops27h 15mUnited Airlines
Sun 3-812:20IAD - SIN
1 stop30h 20mUnited Airlines
Deal found 12-5S$ 1,486
Wed 28-523:30SIN - IAD
1 stop27h 55mSWISS
Tue 10-620:45IAD - SIN
1 stop32h 20mSWISS
Deal found 13-5S$ 1,589
Sun 25-503:10SIN - IAD
1 stop24h 30mQatar Airways
Sun 17-811:00IAD - SIN
1 stop22h 00mQatar Airways
Deal found 14-5S$ 1,772
Sun 18-523:20SIN - IAD
1 stop32h 45mBritish Airways
Sun 25-520:02IAD - SIN
2 stops32h 03mBritish Airways
Deal found 13-5S$ 1,828
Sat 14-623:40SIN - IAD
1 stop25h 50mLufthansa
Thu 26-622:20IAD - SIN
1 stop30h 20mLufthansa
Deal found 13-5S$ 1,845
Tue 27-501:10SIN - IAD
1 stop22h 05mKorean Air
Tue 10-613:30IAD - SIN
1 stop22h 10mKorean Air
Deal found 13-5S$ 1,894
Mon 26-500:50SIN - IAD
1 stop43h 50mEmirates
Fri 30-510:55IAD - SIN
1 stop22h 50mEmirates
Deal found 13-5S$ 1,916

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 May 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 20-6

09:00-07:40

1 stop34h 40m

Washington, D.C. Dulles Intl

Wed 27-8

11:00-07:30

1 stop32h 30m

S$ 1,365

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 15-6

10:15-11:45

1 stop37h 30m

Washington, D.C. Dulles Intl

Tue 1-7

13:30-08:45

1 stop31h 15m

S$ 1,370

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 28-6

19:45-19:45

2 stops36h 00m

Washington, D.C. Dulles Intl

Sat 5-7

21:40-17:20

2 stops31h 40m

S$ 1,381

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 25-5

02:00-07:36

2 stops41h 36m

Washington, D.C. Dulles Intl

Sun 17-8

06:30-12:35

2 stops42h 05m

S$ 1,453

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 7-6

23:30-16:15

1 stop28h 45m

Washington, D.C. Dulles Intl

Sat 21-6

17:45-17:05

2 stops35h 20m

S$ 1,764

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 25-5

03:10-15:40

1 stop24h 30m

Washington, D.C. Dulles Intl

Sun 17-8

11:00-21:00

1 stop22h 00m

S$ 1,772

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 6-6

20:40-11:40

2 stops27h 00m

Washington, D.C. Dulles Intl

Wed 25-6

22:09-18:25

1 stop32h 16m

S$ 1,791

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 18-5

23:20-20:05

1 stop32h 45m

Washington, D.C. Dulles Intl

Sun 25-5

20:02-16:05

2 stops32h 03m

S$ 1,832

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 22-5

01:10-11:15

1 stop22h 05m

Washington, D.C. Dulles Intl

Thu 3-7

13:30-05:00

1 stop27h 30m

S$ 1,937

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 30-6

01:40-08:40

1 stop43h 00m

Washington, D.C. Dulles Intl

Fri 18-7

10:55-21:45

1 stop22h 50m

S$ 1,938

Flights are sorted by cheapest return flights first.

Deals found on 14-5

Showing 1-10 of 26 results
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2
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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

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 May 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 15 May 2025.
Read through reviews of airlines operating flights from Singapore to Washington, D.C., such as EVA Air, Korean Air and Japan Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very Good
1,192 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Korean Air
8.4
Very Good
1,073 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Japan Airlines
8.3
Very Good
1,473 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
China Airlines
8.3
Very Good
732 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Emirates
8.0
Very Good
3,229 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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 Air India. Our recent data shows that you can find tickets from as low as S$ 1,365 on this airline. Additional options worth looking into are Turkish Airlines and IndiGo, starting at S$ 1,370 and S$ 1,381 round-trip. Users have found that Air India is 21% 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$ 650. Air India flights start at S$ 835 while deals on Air China start at S$ 863 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

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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 May 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 15 May 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapestS$ 959AverageS$ 1,228FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Turkish AirlinesCheapestS$ 1,270AverageS$ 1,466FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air IndiaCheapestS$ 1,341AverageS$ 1,514FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
United AirlinesCheapestS$ 1,438AverageS$ 1,620FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapestS$ 1,778AverageS$ 1,952FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Qatar AirwaysCheapestS$ 1,796AverageS$ 2,369FlexibilityNo 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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