Find flights
When to book
Airlines
FAQs

Cheap flights from Singapore to Washington, D.C. Dulles Intl Airport from S$ 651

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 19-5. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — IAD
16 Apr — 23 Apr1
1 adult

Cheapflights Tip: The best prices from Singapore Changi to Washington, D.C. Dulles Intl are usually found in June 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 11 April 2025.

Round-trip from

S$ 1,118

One-way from

S$ 651

Popular in

May

Cheapest in

June

Average price

S$ 1,579
Air India
  • Air India
  • 21-4-25-4
  • 2 total stops
  • 57h 45m total
  • Singapore to Washington, D.C.
SAUDIA
  • SAUDIA
  • 19-5
  • 1 total stop
  • 25h 15m total
  • Singapore to Washington, D.C.
High demand for flights, 3% potential price rise
Cheapest flight prices on average. 1% potential price decrease (S$ 32 potential savings vs. average return price).
Average for round-trip flights in April 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 11 April 2025.

Mon 21-402:30SIN - IAD
1 stop25h 15mMultiple Airlines
Fri 25-411:00IAD - SIN
1 stop32h 30mMultiple Airlines
Deal found 10-4S$ 1,118
Tue 10-609:10SIN - IAD
1 stop33h 11mAir Canada
Wed 10-910:25IAD - SIN
2 stops32h 15mAir Canada
Deal found 10-4S$ 1,216
Fri 20-623:00SIN - IAD
1 stop44h 40mAir India
Wed 27-811:00IAD - SIN
1 stop22h 45mAir India
Deal found 11-4S$ 1,362
Sun 25-510:15SIN - IAD
1 stop45h 30mTurkish Airlines
Sun 1-613:30IAD - SIN
1 stop31h 15mTurkish Airlines
Deal found 10-4S$ 1,382
Mon 5-502:30SIN - IAD
1 stop25h 15mSAUDIA
Tue 20-518:50IAD - SIN
1 stop56h 55mSAUDIA
Deal found 9-4S$ 1,441
Wed 14-511:05SIN - IAD
1 stop40h 35mUnited Airlines
Mon 11-812:50IAD - SIN
2 stops29h 25mUnited Airlines
Deal found 10-4S$ 1,477
Sat 17-523:30SIN - IAD
1 stop27h 45mSWISS
Tue 17-620:45IAD - SIN
2 stops37h 10mSWISS
Deal found 11-4S$ 1,612
Wed 14-520:45SIN - IAD
1 stop31h 29mSingapore Airlines
Mon 11-819:59IAD - SIN
1 stop35h 11mSingapore Airlines
Deal found 10-4S$ 1,698
Tue 13-503:10SIN - IAD
1 stop24h 30mJetBlue
Mon 11-821:00IAD - SIN
1 stop24h 00mJetBlue
Deal found 10-4S$ 1,799
Mon 26-500:05SIN - IAD
1 stop27h 15mLufthansa
Fri 22-817:45IAD - SIN
1 stop25h 10mLufthansa
Deal found 10-4S$ 1,810
Mon 9-603:10SIN - IAD
1 stop24h 30mQatar Airways
Wed 10-911:00IAD - SIN
1 stop22h 00mQatar Airways
Deal found 10-4S$ 1,818
Wed 30-708:05SIN - IAD
2 stops35h 22mJapan Airlines
Fri 8-806:30IAD - SIN
2 stops29h 50mJapan Airlines
Deal found 11-4S$ 1,829

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 11 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

Mon 21-4

02:30-15:45

1 stop25h 15m

Washington, D.C. Dulles Intl

Fri 25-4

11:00-07:30

1 stop32h 30m

S$ 1,118

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 10-6

09:10-06:21

1 stop33h 11m

Washington, D.C. Dulles Intl

Wed 10-9

10:25-06:40

2 stops32h 15m

S$ 1,216

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 20-6

23:00-07:40

1 stop44h 40m

Washington, D.C. Dulles Intl

Wed 27-8

11:00-21:45

1 stop22h 45m

S$ 1,362

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 25-5

10:15-19:45

1 stop45h 30m

Washington, D.C. Dulles Intl

Sun 1-6

13:30-08:45

1 stop31h 15m

S$ 1,382

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 5-5

02:30-15:45

1 stop25h 15m

Washington, D.C. Dulles Intl

Tue 20-5

18:50-15:45

1 stop56h 55m

S$ 1,441

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 14-5

11:05-15:40

1 stop40h 35m

Washington, D.C. Dulles Intl

Mon 11-8

12:50-06:15

2 stops29h 25m

S$ 1,477

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 17-5

23:30-15:15

1 stop27h 45m

Washington, D.C. Dulles Intl

Tue 17-6

20:45-21:55

2 stops37h 10m

S$ 1,612

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 14-5

20:45-16:14

1 stop31h 29m

Washington, D.C. Dulles Intl

Mon 11-8

19:59-19:10

1 stop35h 11m

S$ 1,698

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 13-5

03:10-15:40

1 stop24h 30m

Washington, D.C. Dulles Intl

Mon 11-8

21:00-09:00

1 stop24h 00m

S$ 1,799

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 26-5

00:05-15:20

1 stop27h 15m

Washington, D.C. Dulles Intl

Fri 22-8

17:45-06:55

1 stop25h 10m

S$ 1,810

Flights are sorted by cheapest return flights first.

Deals found on 10-4

Showing 1-10 of 36 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 4 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 11 April 2025.

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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.

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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.

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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.

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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.

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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 Air Canada. Our recent data shows that you can find tickets from as low as S$ 1,216 on this airline. Additional options worth looking into are Air India and Turkish Airlines, starting at S$ 1,362 and S$ 1,382 round-trip. Users have found that Air Canada is 30% 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$ 651. Air India flights start at S$ 844 while deals on IndiGo start at S$ 848 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 11 April 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 11 April 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapestS$ 986AverageS$ 1,261FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Turkish AirlinesCheapestS$ 1,305AverageS$ 1,503FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air IndiaCheapestS$ 1,352AverageS$ 1,403FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
United AirlinesCheapestS$ 1,467AverageS$ 1,685FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapestS$ 1,827AverageS$ 2,006FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Qatar AirwaysCheapestS$ 1,836AverageS$ 2,391FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapestS$ 1,898AverageS$ 2,139FlexibilityNo 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.