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Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from S$ 625

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 29-4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SIN
2 Apr — 9 Apr1
1 adult

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Singapore Changi are usually found in November or March, booked 56 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap flight deals from Dulles Intl to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Singapore (SIN). 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 28 March 2025.

Round-trip from

S$ 1,286

One-way from

S$ 625

Popular in

December

Cheapest in

November

Average price

S$ 1,375
Air Canada
  • Air Canada
  • 16-9-30-9
  • 4 total stops
  • 68h 26m total
  • Washington, D.C. to Singapore
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29-4
  • 29-4
  • 3 total stops
  • 33h 30m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (S$ 27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (S$ 88 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
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Find flight deals from Dulles Intl to Singapore

Cheapest flights from Dulles Intl to Singapore
Explore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Tue 16-909:13IAD - SIN
2 stops33h 52mAir Canada
Tue 30-909:10SIN - IAD
2 stops34h 34mAir Canada
Deal found 26-3S$ 1,286
Wed 2-421:40IAD - SIN
1 stop32h 15mTurkish Airlines
Sun 6-423:10SIN - IAD
1 stop24h 35mTurkish Airlines
Deal found 27-3S$ 1,295
Fri 19-921:40IAD - SIN
1 stop32h 15mMultiple Airlines
Mon 20-1002:30SIN - IAD
1 stop25h 15mMultiple Airlines
Deal found 28-3S$ 1,302
Tue 1-421:00IAD - SIN
1 stop24h 00mQatar Airways
Sun 11-503:10SIN - IAD
1 stop24h 30mQatar Airways
Deal found 27-3S$ 1,347
Mon 2-618:50IAD - SIN
2 stops32h 55mSAUDIA
Wed 23-703:45SIN - IAD
1 stop24h 00mSAUDIA
Deal found 27-3S$ 1,369
Sun 11-522:05IAD - SIN
1 stop23h 35mEtihad Airways
Sat 24-521:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 28-3S$ 1,378
Sun 20-421:00IAD - SIN
1 stop24h 00mJetBlue
Sat 3-503:10SIN - IAD
1 stop24h 30mJetBlue
Deal found 27-3S$ 1,429
Wed 7-513:30IAD - SIN
2 stops39h 50mIndiGo
Wed 14-519:45SIN - IAD
2 stops36h 00mIndiGo
Deal found 27-3S$ 1,464
Mon 14-421:00IAD - SIN
1 stop30h 45mAlaska Airlines
Mon 21-418:45SIN - IAD
1 stop32h 55mAlaska Airlines
Deal found 27-3S$ 1,492
Sun 18-522:05IAD - SIN
1 stop32h 20mUnited Airlines
Wed 21-511:05SIN - IAD
1 stop40h 40mUnited Airlines
Deal found 28-3S$ 1,596
Wed 24-921:40IAD - SIN
2 stops29h 10mEthiopian Air
Tue 7-1002:00SIN - IAD
2 stops30h 05mEthiopian Air
Deal found 26-3S$ 1,606
Sat 5-411:00IAD - SIN
1 stop32h 30mAir India
Sat 12-420:30SIN - IAD
1 stop23h 10mAir India
Deal found 28-3S$ 1,633

Cheapflights Fare Finder

Customise your flight search to find flights from Dulles Intl to Singapore 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 28 March 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Singapore that are best for you.

Fly from

Dulles Intl

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 16-9

09:13-07:05

2 stops33h 52m

Singapore Changi

Tue 30-9

09:10-07:44

2 stops34h 34m

S$ 1,286

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 6-5

13:30-17:55

1 stop40h 25m

Singapore Changi

Sat 17-5

23:10-19:45

1 stop32h 35m

S$ 1,298

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 19-9

21:40-17:55

1 stop32h 15m

Singapore Changi

Mon 20-10

02:30-15:45

1 stop25h 15m

S$ 1,302

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 21-4

21:00-15:45

1 stop30h 45m

Singapore Changi

Tue 29-4

10:30-08:40

1 stop34h 10m

S$ 1,353

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 2-6

18:50-15:45

2 stops32h 55m

Singapore Changi

Wed 23-7

03:45-15:45

1 stop24h 00m

S$ 1,369

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 11-5

22:05-09:40

1 stop23h 35m

Singapore Changi

Mon 26-5

21:10-16:10

1 stop31h 00m

S$ 1,378

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 20-4

21:00-09:00

1 stop24h 00m

Singapore Changi

Sat 3-5

03:10-15:40

1 stop24h 30m

S$ 1,429

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 7-5

13:30-17:20

2 stops39h 50m

Singapore Changi

Wed 14-5

19:45-19:45

2 stops36h 00m

S$ 1,464

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 14-4

21:00-15:45

1 stop30h 45m

Singapore Changi

Mon 21-4

18:45-15:40

1 stop32h 55m

S$ 1,492

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 18-5

22:05-18:25

1 stop32h 20m

Singapore Changi

Wed 21-5

11:05-15:45

1 stop40h 40m

S$ 1,596

Flights are sorted by cheapest return flights first.

Deals found on 27-3

Showing 1-10 of 25 results
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Best time to book a flight from Dulles Intl to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Singapore

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Singapore?

Use this chart to determine the optimal time to book a return flight from Dulles Intl to Singapore. Price data was last updated on 21 March 2025.

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Rainfall in Singapore by month

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

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

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

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. 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 Singapore. Reviews last updated 28 March 2025.
Peruse reviews from past customers who have flown with ANA, Asiana Airlines and Delta from Washington, D.C. to Singapore to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.3
Very Good
829 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.6

Comfort

8.2

Boarding

8.5

Overall

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
ANA
8.3
Very Good
829 reviews
ANA
8.3
Very Good
829 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.6

Comfort

8.2

Boarding

8.5

Overall

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Asiana Airlines
8.2
Very Good
440 reviews
ANA
8.3
Very Good
829 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.6

Comfort

8.2

Boarding

8.5

Overall

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Delta
8.0
Very Good
7,896 reviews
ANA
8.3
Very Good
829 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.6

Comfort

8.2

Boarding

8.5

Overall

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Alaska Airlines
8.0
Very Good
9,797 reviews
ANA
8.3
Very Good
829 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.6

Comfort

8.2

Boarding

8.5

Overall

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.
Cathay Pacific
7.5
Good
837 reviews
ANA
8.3
Very Good
829 reviews
Check prices

Entertainment

7.9

Crew

8.7

Food

7.6

Comfort

8.2

Boarding

8.5

Overall

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2025

SFO - HND

Don't bother with economy, it's so small!!! I'm a small person and I was cramped in the middle seat on a 11 hour flight. Not fun. Go for business or first class for such a long flight if you can or be prepared to have trouble moving when you stand up. Also be prepared to have trouble sleeping too. Crew was awesome though, they were helpful and provided excellent service.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Singapore. 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 into for flights to Singapore from 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 Singapore from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Changi (SIN) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Singapore round-trip?

    Air Canada, at S$ 1,286, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Singapore.Alternate airlines to your destination round-trip include Turkish Airlines and Qatar Airways. Air Canada is priced at 23% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is Turkish Airlines, with whom users have recently found tickets for as low as S$ 633. However, be on the lookout for offers from Air China and Air India, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Singapore for a low price.

  • Can I find deals for flights from Dulles Intl to Singapore that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Singapore.

  • Can I find deals for business class flights from Dulles Intl to Singapore?

    Yes. Cheapflights offers flight deals from Dulles Intl to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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