Find flights
When to book
Airlines
FAQs

Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 527

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 18-7. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
30 Mar — 6 Apr1
1 adult

Cheapflights Tip: The best prices from Singapore Changi to Washington, D.C. Dulles Intl are usually found in March or September, booked 86 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 25 March 2025.

Round-trip from

S$ 875

One-way from

S$ 527

Popular in

May

Cheapest in

March

Average price

S$ 1,561
SAUDIA
  • SAUDIA
  • 23-4-10-5
  • 2 total stops
  • 56h 55m total
  • Singapore to Washington, D.C.
SAUDIA
  • SAUDIA
  • 18-7
  • 1 total stop
  • 25h 15m total
  • Singapore to Washington, D.C.
High demand for flights, 1% potential price rise
Cheapest flight prices on average. 1% potential price decrease (S$ 31 potential savings vs. average return price).
Average for round-trip flights in March 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 25 March 2025.

Wed 23-403:45SIN - IAD
1 stop24h 00mSAUDIA
Sat 10-518:50IAD - SIN
1 stop32h 55mSAUDIA
Deal found 24-3S$ 875
Mon 21-402:30SIN - IAD
1 stop25h 15mMultiple Airlines
Mon 28-421:40IAD - SIN
1 stop22h 50mMultiple Airlines
Deal found 25-3S$ 1,204
Wed 14-506:15SIN - IAD
2 stops26h 53mAir Canada
Thu 7-809:45IAD - SIN
2 stops33h 20mAir Canada
Deal found 25-3S$ 1,303
Fri 20-610:15SIN - IAD
1 stop37h 30mTurkish Airlines
Tue 9-913:30IAD - SIN
1 stop40h 25mTurkish Airlines
Deal found 24-3S$ 1,352
Thu 3-420:30SIN - IAD
1 stop23h 10mAir India
Fri 18-411:00IAD - SIN
1 stop22h 45mAir India
Deal found 25-3S$ 1,398
Wed 14-511:05SIN - IAD
1 stop40h 35mUnited Airlines
Thu 7-812:50IAD - SIN
2 stops29h 25mUnited Airlines
Deal found 25-3S$ 1,417
Sat 31-523:30SIN - IAD
1 stop28h 45mSWISS
Mon 16-620:45IAD - SIN
1 stop32h 20mSWISS
Deal found 24-3S$ 1,605
Tue 6-523:20SIN - IAD
1 stop28h 25mBritish Airways
Fri 23-522:40IAD - SIN
1 stop31h 20mBritish Airways
Deal found 25-3S$ 1,736
Wed 14-510:30SIN - IAD
1 stop34h 10mQatar Airways
Thu 7-811:00IAD - SIN
1 stop22h 00mQatar Airways
Deal found 25-3S$ 1,746
Thu 19-601:40SIN - IAD
1 stop43h 00mEmirates
Tue 9-910:55IAD - SIN
1 stop40h 05mEmirates
Deal found 25-3S$ 1,878
Tue 13-501:10SIN - IAD
2 stops40h 42mDelta
Thu 7-813:30IAD - SIN
1 stop27h 30mDelta
Deal found 25-3S$ 2,032
Mon 30-601:50SIN - IAD
2 stops41h 00mCathay Pacific
Fri 18-719:59IAD - SIN
2 stops31h 26mCathay Pacific
Deal found 25-3S$ 2,198

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 25 March 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

Wed 23-4

03:45-15:45

1 stop24h 00m

Washington, D.C. Dulles Intl

Sat 10-5

18:50-15:45

1 stop32h 55m

S$ 875

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 21-4

02:30-15:45

1 stop25h 15m

Washington, D.C. Dulles Intl

Mon 28-4

21:40-08:30

1 stop22h 50m

S$ 1,204

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 14-5

06:15-21:08

2 stops26h 53m

Washington, D.C. Dulles Intl

Thu 7-8

09:45-07:05

2 stops33h 20m

S$ 1,303

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 20-6

10:15-11:45

1 stop37h 30m

Washington, D.C. Dulles Intl

Tue 9-9

13:30-17:55

1 stop40h 25m

S$ 1,352

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 9-5

20:30-07:40

1 stop23h 10m

Washington, D.C. Dulles Intl

Fri 16-5

11:00-21:45

1 stop22h 45m

S$ 1,414

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 14-5

11:05-15:40

1 stop40h 35m

Washington, D.C. Dulles Intl

Thu 7-8

12:50-06:15

2 stops29h 25m

S$ 1,417

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 31-5

23:30-16:15

1 stop28h 45m

Washington, D.C. Dulles Intl

Mon 16-6

20:45-17:05

1 stop32h 20m

S$ 1,605

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 6-5

23:20-15:45

1 stop28h 25m

Washington, D.C. Dulles Intl

Fri 23-5

22:40-18:00

1 stop31h 20m

S$ 1,736

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$ 1,746

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 19-6

01:40-08:40

1 stop43h 00m

Washington, D.C. Dulles Intl

Tue 9-9

10:55-15:00

1 stop40h 05m

S$ 1,878

Flights are sorted by cheapest return flights first.

Deals found on 24-3

Showing 1-10 of 33 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 21 March 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 85 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 25 March 2025.
Read through reviews of airlines operating flights from Singapore to Washington, D.C., such as Korean Air, ANA and Emirates. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

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.

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

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.
8.3
Very Good

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

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.

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

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.
8.0
Very Good

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

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.

Boarding

8.5

Crew

8.7

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

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 7 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 SAUDIA. Our recent data shows that you can find tickets from as low as S$ 875 on this airline. Additional options worth looking into are Air Canada and Turkish Airlines, starting at S$ 1,303 and S$ 1,352 round-trip. Users have found that SAUDIA is 50% 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$ 527. IndiGo flights start at S$ 780 while deals on Air China start at S$ 864 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 25 March 2025.

Top 7 airlines flying from Singapore to Dulles Intl

Discover the top 7 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapestS$ 987AverageS$ 1,263FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Turkish AirlinesCheapestS$ 1,292AverageS$ 1,505FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air IndiaCheapestS$ 1,354AverageS$ 1,607FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
United AirlinesCheapestS$ 1,470AverageS$ 1,688FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapestS$ 1,830AverageS$ 2,037FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Qatar AirwaysCheapestS$ 1,839AverageS$ 2,394FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapestS$ 1,900AverageS$ 2,142FlexibilityNo cancel feeOn-time75%
Search Emirates 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.