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Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 543

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 23-7. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from Singapore Changi to Washington, D.C. Dulles Intl are usually found in March or September, 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 29 April 2025.

Round-trip from

S$ 1,375

One-way from

S$ 543

Popular in

May

Cheapest in

March

Average price

S$ 1,551
Air Canada
  • Air Canada
  • 5-10-18-10
  • 4 total stops
  • 86h 23m total
  • Singapore to Washington, D.C.
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SAUDIA
  • SAUDIA
  • 23-7
  • 1 total stop
  • 24h 00m total
  • Singapore to Washington, D.C.
Search Deals
High demand for flights, 1% potential price rise
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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 April 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 29 April 2025.

Sun 5-1009:10SIN - IAD
2 stops36h 28mAir Canada
Sat 18-1017:10IAD - SIN
2 stops49h 55mAir Canada
Deal found 28-4S$ 1,375
Sat 10-502:00SIN - IAD
2 stops41h 43mMultiple Airlines
Tue 15-708:10IAD - SIN
2 stops40h 25mMultiple Airlines
Deal found 28-4S$ 1,379
Sun 5-1010:15SIN - IAD
1 stop37h 30mTurkish Airlines
Sun 19-1013:30IAD - SIN
1 stop31h 15mTurkish Airlines
Deal found 28-4S$ 1,390
Wed 30-723:00SIN - IAD
1 stop44h 40mAir India
Fri 8-811:00IAD - SIN
1 stop32h 30mAir India
Deal found 29-4S$ 1,399
Mon 30-611:05SIN - IAD
1 stop40h 40mUnited Airlines
Tue 15-708:30IAD - SIN
2 stops33h 45mUnited Airlines
Deal found 28-4S$ 1,483
Fri 1-819:45SIN - IAD
2 stops36h 00mIndiGo
Mon 15-921:40IAD - SIN
2 stops31h 40mIndiGo
Deal found 27-4S$ 1,553
Fri 20-623:30SIN - IAD
2 stops32h 30mSWISS
Wed 27-817:45IAD - SIN
1 stop25h 10mSWISS
Deal found 29-4S$ 1,614
Mon 30-602:30SIN - IAD
1 stop25h 15mSAUDIA
Thu 17-718:50IAD - SIN
1 stop80h 55mSAUDIA
Deal found 28-4S$ 1,700
Mon 2-623:20SIN - IAD
1 stop32h 50mBritish Airways
Mon 30-622:40IAD - SIN
1 stop29h 25mBritish Airways
Deal found 29-4S$ 1,723
Wed 14-510:30SIN - IAD
1 stop34h 10mQatar Airways
Thu 7-811:00IAD - SIN
1 stop22h 00mQatar Airways
Deal found 29-4S$ 1,735
Wed 2-721:10SIN - IAD
1 stop31h 00mEtihad Airways
Thu 17-722:05IAD - SIN
1 stop23h 35mEtihad Airways
Deal found 28-4S$ 1,810
Wed 14-522:10SIN - IAD
1 stop23h 55mANA
Thu 7-808:30IAD - SIN
2 stops28h 15mANA
Deal found 28-4S$ 1,911

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 29 April 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

Sun 5-10

09:10-09:38

2 stops36h 28m

Washington, D.C. Dulles Intl

Sat 18-10

17:10-07:05

2 stops49h 55m

S$ 1,375

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 10-5

02:00-07:43

2 stops41h 43m

Washington, D.C. Dulles Intl

Tue 15-7

08:10-12:35

2 stops40h 25m

S$ 1,379

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

10:15-11:45

1 stop37h 30m

Washington, D.C. Dulles Intl

Sun 19-10

13:30-08:45

1 stop31h 15m

S$ 1,390

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 30-7

23:00-07:40

1 stop44h 40m

Washington, D.C. Dulles Intl

Fri 8-8

11:00-07:30

1 stop32h 30m

S$ 1,399

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 30-6

11:05-15:45

1 stop40h 40m

Washington, D.C. Dulles Intl

Tue 15-7

08:30-06:15

2 stops33h 45m

S$ 1,483

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 1-8

19:45-19:45

2 stops36h 00m

Washington, D.C. Dulles Intl

Mon 15-9

21:40-17:20

2 stops31h 40m

S$ 1,553

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 20-6

23:30-20:00

2 stops32h 30m

Washington, D.C. Dulles Intl

Wed 27-8

17:45-06:55

1 stop25h 10m

S$ 1,614

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 30-6

02:30-15:45

1 stop25h 15m

Washington, D.C. Dulles Intl

Thu 17-7

18:50-15:45

1 stop80h 55m

S$ 1,700

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 2-6

23:20-20:10

1 stop32h 50m

Washington, D.C. Dulles Intl

Mon 30-6

22:40-16:05

1 stop29h 25m

S$ 1,723

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 14-5

10:30-08:40

1 stop34h 10m

Washington, D.C. Dulles Intl

Thu 7-8

11:00-21:00

1 stop22h 00m

S$ 1,735

Flights are sorted by cheapest return flights first.

Deals found on 28-4

Showing 1-10 of 33 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

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 25 April 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 29 April 2025.
Read through reviews of airlines operating flights from Singapore to Washington, D.C., such as Korean Air, China Airlines and ANA. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,066 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very Good
729 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very Good
855 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Emirates
8.0
Very Good
3,213 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very Good
7,929 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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 Air Canada. Our recent data shows that you can find tickets from as low as S$ 1,375 on this airline. Additional options worth looking into are Turkish Airlines and Air India, starting at S$ 1,390 and S$ 1,399 round-trip. Users have found that Air Canada is 20% 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 SAUDIA, which is currently one of the cheapest options available, starting at S$ 543. Air China flights start at S$ 581 while deals on IndiGo start at S$ 676 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 29 April 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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapestS$ 968AverageS$ 1,239FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Turkish AirlinesCheapestS$ 1,282AverageS$ 1,480FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
United AirlinesCheapestS$ 1,409AverageS$ 1,640FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapestS$ 1,795AverageS$ 1,971FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Qatar AirwaysCheapestS$ 1,814AverageS$ 2,391FlexibilityNo 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.

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